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- EMDB-4658: Structure of the human U5.U4/U6 tri-snRNP at 2.9A resolution. -

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Basic information

Entry
Database: EMDB / ID: EMD-4658
TitleStructure of the human U5.U4/U6 tri-snRNP at 2.9A resolution.
Map dataHuman U4.U5/U6 tri-snRNP, overall map.
Sample
  • Complex: Human U4/U6.U5 tri-snRNP
    • Complex: U5.U4/U6 tri-snRNP
      • Protein or peptide: x 28 types
      • RNA: x 3 types
    • Complex: Probable ATP-dependent RNA helicase DDX23
      • Protein or peptide: x 1 types
  • Ligand: x 4 types
KeywordsRNP complex / splicing / RNA / protein / spliceosome
Function / homology
Function and homology information


Lsm2-8 complex / U6 snRNA 3'-end binding / spliceosomal snRNP complex / ribonucleoprotein complex localization / U4atac snRNP / positive regulation of cytotoxic T cell differentiation / maturation of 5S rRNA / RNA localization / U4atac snRNA binding / mRNA decay by 5' to 3' exoribonuclease ...Lsm2-8 complex / U6 snRNA 3'-end binding / spliceosomal snRNP complex / ribonucleoprotein complex localization / U4atac snRNP / positive regulation of cytotoxic T cell differentiation / maturation of 5S rRNA / RNA localization / U4atac snRNA binding / mRNA decay by 5' to 3' exoribonuclease / Lsm1-7-Pat1 complex / R-loop processing / box C/D sno(s)RNA binding / U6 snRNP / PH domain binding / U2 snRNP binding / U7 snRNA binding / histone pre-mRNA DCP binding / U7 snRNP / dense fibrillar component / histone pre-mRNA 3'end processing complex / cis assembly of pre-catalytic spliceosome / SLBP independent Processing of Histone Pre-mRNAs / SLBP Dependent Processing of Replication-Dependent Histone Pre-mRNAs / box C/D methylation guide snoRNP complex / spliceosome conformational change to release U4 (or U4atac) and U1 (or U11) / U4/U6 snRNP / protein methylation / U12-type spliceosomal complex / 7-methylguanosine cap hypermethylation / U1 snRNP binding / methylosome / sno(s)RNA-containing ribonucleoprotein complex / RNA splicing, via transesterification reactions / pICln-Sm protein complex / U2-type catalytic step 1 spliceosome / snRNP binding / U4 snRNA binding / small nuclear ribonucleoprotein complex / SMN-Sm protein complex / spliceosomal tri-snRNP complex / P granule / telomerase holoenzyme complex / U2-type precatalytic spliceosome / commitment complex / mRNA cis splicing, via spliceosome / telomerase RNA binding / U2-type spliceosomal complex / U2-type prespliceosome assembly / U2-type catalytic step 2 spliceosome / box C/D snoRNP assembly / U4 snRNP / RNA Polymerase II Transcription Termination / P-body assembly / U2 snRNP / U1 snRNP / U3 snoRNA binding / U2-type prespliceosome / rRNA modification in the nucleus and cytosol / tRNA processing / K63-linked polyubiquitin modification-dependent protein binding / precatalytic spliceosome / spliceosomal complex assembly / mRNA catabolic process / mRNA Splicing - Minor Pathway / negative regulation of mRNA splicing, via spliceosome / nuclear-transcribed mRNA catabolic process / MLL1 complex / spliceosomal tri-snRNP complex assembly / U5 snRNA binding / protein deubiquitination / U5 snRNP / U2 snRNA binding / U6 snRNA binding / pre-mRNA intronic binding / single fertilization / Major pathway of rRNA processing in the nucleolus and cytosol / spliceosomal snRNP assembly / ribonucleoprotein complex binding / RNA processing / U1 snRNA binding / Cajal body / U4/U6 x U5 tri-snRNP complex / catalytic step 2 spliceosome / mRNA Splicing - Major Pathway / RNA splicing / maturation of SSU-rRNA / response to cocaine / response to bacterium / spliceosomal complex / small-subunit processome / P-body / helicase activity / mRNA splicing, via spliceosome / small GTPase binding / cellular response to xenobiotic stimulus / mRNA processing / osteoblast differentiation / cellular response to tumor necrosis factor / cellular response to lipopolysaccharide
Similarity search - Function
U4/U6.U5 small nuclear ribonucleoprotein 27kDa protein / RBM42, RNA recognition motif / U4/U6.U5 small nuclear ribonucleoproteins / : / USP39 / DDX23-like domain / PRP4-like superfamily / pre-mRNA processing factor 4 (PRP4) like / SNU66/SART1 family / HIND motif ...U4/U6.U5 small nuclear ribonucleoprotein 27kDa protein / RBM42, RNA recognition motif / U4/U6.U5 small nuclear ribonucleoproteins / : / USP39 / DDX23-like domain / PRP4-like superfamily / pre-mRNA processing factor 4 (PRP4) like / SNU66/SART1 family / HIND motif / SART-1 family / HIND motif / Sm-like protein Lsm8 / PWI domain superfamily / PWI domain / PWI domain profile. / Pre-mRNA processing factor 4 (PRP4)-like / U6 snRNA-associated Sm-like protein LSm2 / Sm-like protein Lsm4 / Splicing Factor Motif, present in Prp18 and Pr04 / Sm-like protein Lsm7 / U6 snRNA-associated Sm-like protein Lsm1/8 / Sm-like protein LSm5 / Sm-like protein Lsm3 / U6 snRNA-associated Sm-like protein Lsm3 / Pre-mRNA-splicing factor 3 / U4/U6 small nuclear ribonucleoprotein Prp3 / pre-mRNA processing factor 3 domain / Prp31 C-terminal / U4/U6 small nuclear ribonucleoprotein Prp31 / Prp31 C terminal domain / Small nuclear ribonucleoprotein Prp3, C-terminal domain / Small nuclear ribonucleoprotein Prp3, C-terminal domain / PWI domain / PWI, domain in splicing factors / Dim1 family / Mitosis protein DIM1 / Mitosis protein DIM1 / PRP1 splicing factor, N-terminal / PRP1 splicing factor, N-terminal / : / : / Small ribonucleoprotein associated, SmB/SmN / Small nuclear ribonucleoprotein D1 / NOSIC / NOSIC (NUC001) domain / Nop domain / Nop domain superfamily / Nop, C-terminal domain / snoRNA binding domain, fibrillarin / Nop domain profile. / Brr2, N-terminal helicase PWI domain / : / N-terminal helicase PWI domain / Pre-mRNA-splicing helicase BRR2 plug domain / H/ACA ribonucleoprotein complex, subunit Nhp2-like / Ubiquitin Carboxyl-terminal Hydrolase-like zinc finger / Zinc finger, UBP-type / Zn-finger in ubiquitin-hydrolases and other protein / Zinc finger UBP-type profile. / Winged Helix-turn-helix domain / Sec63 Brl domain / : / Tetratricopeptide repeat / 116kDa U5 small nuclear ribonucleoprotein component, N-terminal / 116kDa U5 small nuclear ribonucleoprotein component, C-terminal / Snu114, GTP-binding domain / 116 kDa U5 small nuclear ribonucleoprotein component N-terminus / Pre-mRNA-splicing factor Syf1-like / Sec63 domain / Sec63 Brl domain / Small nuclear ribonucleoprotein Sm D3 / Small nuclear ribonucleoprotein Sm D2 / Small nuclear ribonucleoprotein E / Small nuclear ribonucleoprotein G / Small nuclear ribonucleoprotein F / Sm-like protein Lsm7/SmG / Like-Sm (LSM) domain containing protein, LSm4/SmD1/SmD3 / Sm-like protein Lsm6/SmF / LSM domain / Tetratricopeptide repeat / LSM domain, eukaryotic/archaea-type / snRNP Sm proteins / HAT (Half-A-TPR) repeat / HAT (Half-A-TPR) repeats / Peptidase C19, ubiquitin carboxyl-terminal hydrolase / Ubiquitin carboxyl-terminal hydrolase / DEAD-box subfamily ATP-dependent helicases signature. / Ubiquitin specific protease domain / Ubiquitin specific protease (USP) domain profile. / ATP-dependent RNA helicase DEAD-box, conserved site / RNA helicase, DEAD-box type, Q motif / : / Sm domain profile. / DEAD-box RNA helicase Q motif profile. / Elongation Factor G, domain II / Elongation Factor G, domain III / LSM domain superfamily / JAB1/Mov34/MPN/PAD-1 ubiquitin protease / Translation elongation factor EFG/EF2, domain IV
Similarity search - Domain/homology
U4/U6 small nuclear ribonucleoprotein Prp4 / U4/U6.U5 tri-snRNP-associated protein 1 / U4/U6 small nuclear ribonucleoprotein Prp3 / U5 small nuclear ribonucleoprotein 200 kDa helicase / Pre-mRNA-processing factor 6 / U6 snRNA-associated Sm-like protein LSm8 / Small nuclear ribonucleoprotein-associated proteins B and B' / NHP2-like protein 1 / Small nuclear ribonucleoprotein E / Small nuclear ribonucleoprotein F ...U4/U6 small nuclear ribonucleoprotein Prp4 / U4/U6.U5 tri-snRNP-associated protein 1 / U4/U6 small nuclear ribonucleoprotein Prp3 / U5 small nuclear ribonucleoprotein 200 kDa helicase / Pre-mRNA-processing factor 6 / U6 snRNA-associated Sm-like protein LSm8 / Small nuclear ribonucleoprotein-associated proteins B and B' / NHP2-like protein 1 / Small nuclear ribonucleoprotein E / Small nuclear ribonucleoprotein F / Small nuclear ribonucleoprotein G / U6 snRNA-associated Sm-like protein LSm3 / U6 snRNA-associated Sm-like protein LSm6 / Small nuclear ribonucleoprotein Sm D1 / Small nuclear ribonucleoprotein Sm D2 / Small nuclear ribonucleoprotein Sm D3 / Thioredoxin-like protein 4A / 116 kDa U5 small nuclear ribonucleoprotein component / Ubiquitin carboxyl-terminal hydrolase 39 / Pre-mRNA-processing-splicing factor 8 / U4/U6.U5 small nuclear ribonucleoprotein 27 kDa protein / U4/U6 small nuclear ribonucleoprotein Prp31 / U5 small nuclear ribonucleoprotein 40 kDa protein / RNA-binding protein 42 / Probable ATP-dependent RNA helicase DDX23 / U6 snRNA-associated Sm-like protein LSm7 / U6 snRNA-associated Sm-like protein LSm2 / U6 snRNA-associated Sm-like protein LSm5 / U6 snRNA-associated Sm-like protein LSm4
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.92 Å
AuthorsCharenton C / Wilkinson ME
Funding support United Kingdom, 2 items
OrganizationGrant numberCountry
European Research CouncilAdG-693087-SPLICE3D United Kingdom
Medical Research Council (United Kingdom)MC_U105184330 United Kingdom
CitationJournal: Science / Year: 2019
Title: Mechanism of 5' splice site transfer for human spliceosome activation.
Authors: Clément Charenton / Max E Wilkinson / Kiyoshi Nagai /
Abstract: The prespliceosome, comprising U1 and U2 small nuclear ribonucleoproteins (snRNPs) bound to the precursor messenger RNA 5' splice site (5'SS) and branch point sequence, associates with the U4/U6.U5 ...The prespliceosome, comprising U1 and U2 small nuclear ribonucleoproteins (snRNPs) bound to the precursor messenger RNA 5' splice site (5'SS) and branch point sequence, associates with the U4/U6.U5 tri-snRNP to form the fully assembled precatalytic pre-B spliceosome. Here, we report cryo-electron microscopy structures of the human pre-B complex captured before U1 snRNP dissociation at 3.3-angstrom core resolution and the human tri-snRNP at 2.9-angstrom resolution. U1 snRNP inserts the 5'SS-U1 snRNA helix between the two RecA domains of the Prp28 DEAD-box helicase. Adenosine 5'-triphosphate-dependent closure of the Prp28 RecA domains releases the 5'SS to pair with the nearby U6 ACAGAGA-box sequence presented as a mobile loop. The structures suggest that formation of the 5'SS-ACAGAGA helix triggers remodeling of an intricate protein-RNA network to induce Brr2 helicase relocation to its loading sequence in U4 snRNA, enabling Brr2 to unwind the U4/U6 snRNA duplex to allow U6 snRNA to form the catalytic center of the spliceosome.
History
DepositionMar 5, 2019-
Header (metadata) releaseApr 17, 2019-
Map releaseApr 17, 2019-
UpdateNov 13, 2024-
Current statusNov 13, 2024Processing site: PDBe / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.018
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 0.018
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6qw6
  • Surface level: 0.018
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_4658.png

Downloads & links

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Map

FileDownload / File: emd_4658.map.gz / Format: CCP4 / Size: 282.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationHuman U4.U5/U6 tri-snRNP, overall map.
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.02 Å/pix.
x 420 pix.
= 429.24 Å		1.02 Å/pix.
x 420 pix.
= 429.24 Å		1.02 Å/pix.
x 420 pix.
= 429.24 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.022 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.02 / Movie #1: 0.018
Minimum - Maximum-0.079001464 - 0.15376186
Average (Standard dev.)-0.000005510588 (±0.0032483034)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions420420420
Spacing420420420
CellA=B=C: 429.24 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.0221.0221.022
M x/y/z420420420
origin x/y/z0.0000.0000.000
length x/y/z429.240429.240429.240
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS420420420
D min/max/mean-0.0790.154-0.000

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Supplemental data

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Additional map: Composite map from the multi body refinement. For...

Fileemd_4658_additional.map
AnnotationComposite map from the multi body refinement. For each map voxel, the map value was taken from the body with the highest local resolution as calculated with RELION.
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Human U4/U6.U5 tri-snRNP

EntireName: Human U4/U6.U5 tri-snRNP
Components
  • Complex: Human U4/U6.U5 tri-snRNP
    • Complex: U5.U4/U6 tri-snRNP
      • Protein or peptide: U4/U6.U5 small nuclear ribonucleoprotein 27 kDa protein
      • RNA: U4 snRNA
      • Protein or peptide: Small nuclear ribonucleoprotein Sm D1
      • Protein or peptide: Small nuclear ribonucleoprotein Sm D2
      • Protein or peptide: Small nuclear ribonucleoprotein Sm D3
      • Protein or peptide: U4/U6 small nuclear ribonucleoprotein Prp3
      • Protein or peptide: U4/U6 small nuclear ribonucleoprotein Prp4
      • Protein or peptide: U4/U6 small nuclear ribonucleoprotein Prp31
      • Protein or peptide: NHP2-like protein 1
      • Protein or peptide: Small nuclear ribonucleoprotein-associated proteins B and B'
      • Protein or peptide: Small nuclear ribonucleoprotein E
      • Protein or peptide: Small nuclear ribonucleoprotein F
      • Protein or peptide: Small nuclear ribonucleoprotein G
      • RNA: U5 snRNA
      • Protein or peptide: U5 small nuclear ribonucleoprotein 200 kDa helicase
      • Protein or peptide: Pre-mRNA-processing-splicing factor 8
      • Protein or peptide: 116 kDa U5 small nuclear ribonucleoprotein component
      • Protein or peptide: Thioredoxin-like protein 4A
      • Protein or peptide: Pre-mRNA-processing factor 6
      • Protein or peptide: U5 small nuclear ribonucleoprotein 40 kDa protein
      • RNA: U6 snRNA
      • Protein or peptide: U6 snRNA-associated Sm-like protein LSm2
      • Protein or peptide: U6 snRNA-associated Sm-like protein LSm3
      • Protein or peptide: U6 snRNA-associated Sm-like protein LSm4
      • Protein or peptide: U6 snRNA-associated Sm-like protein LSm5
      • Protein or peptide: U6 snRNA-associated Sm-like protein LSm6
      • Protein or peptide: U6 snRNA-associated Sm-like protein LSm7
      • Protein or peptide: U6 snRNA-associated Sm-like protein LSm8
      • Protein or peptide: RNA-binding protein 42
      • Protein or peptide: U4/U6.U5 tri-snRNP-associated protein 1
      • Protein or peptide: U4/U6.U5 tri-snRNP-associated protein 2
    • Complex: Probable ATP-dependent RNA helicase DDX23
      • Protein or peptide: Probable ATP-dependent RNA helicase DDX23
  • Ligand: INOSITOL HEXAKISPHOSPHATE
  • Ligand: MAGNESIUM ION
  • Ligand: GUANOSINE-5'-TRIPHOSPHATE
  • Ligand: ZINC ION

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Supramolecule #1: Human U4/U6.U5 tri-snRNP

SupramoleculeName: Human U4/U6.U5 tri-snRNP / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#15, #17, #16, #18-#31
Molecular weightTheoretical: 1.7 MDa

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Supramolecule #2: U5.U4/U6 tri-snRNP

SupramoleculeName: U5.U4/U6 tri-snRNP / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1-#14, #16, #15, #17-#20, #22-#32
Source (natural)Organism: Homo sapiens (human)

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Supramolecule #3: Probable ATP-dependent RNA helicase DDX23

SupramoleculeName: Probable ATP-dependent RNA helicase DDX23 / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #21
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: U4/U6.U5 small nuclear ribonucleoprotein 27 kDa protein

MacromoleculeName: U4/U6.U5 small nuclear ribonucleoprotein 27 kDa protein
type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 18.915414 KDa
SequenceString:
MGRSRSRSPR RERRRSRSTS RERERRRRER SRSRERDRRR SRSRSPHRRR SRSPRRHRST SPSPSRLKER RDEEKKETKE TKSKERQIT EEDLEGKTEE EIEMMKLMGF ASFDSTKGKK VDGSVNAYAI NVSQKRKYRQ YMNRKGGFNR PLDFIA

UniProtKB: U4/U6.U5 small nuclear ribonucleoprotein 27 kDa protein

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Macromolecule #3: Small nuclear ribonucleoprotein Sm D1

MacromoleculeName: Small nuclear ribonucleoprotein Sm D1 / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 13.310653 KDa
SequenceString:
MKLVRFLMKL SHETVTIELK NGTQVHGTIT GVDVSMNTHL KAVKMTLKNR EPVQLETLSI RGNNIRYFIL PDSLPLDTLL VDVEPKVKS KKREAVAGRG RGRGRGRGRG RGRGRGGPRR

UniProtKB: Small nuclear ribonucleoprotein Sm D1

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Macromolecule #4: Small nuclear ribonucleoprotein Sm D2

MacromoleculeName: Small nuclear ribonucleoprotein Sm D2 / type: protein_or_peptide / ID: 4 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 13.551928 KDa
SequenceString:
MSLLNKPKSE MTPEELQKRE EEEFNTGPLS VLTQSVKNNT QVLINCRNNK KLLGRVKAFD RHCNMVLENV KEMWTEVPKS GKGKKKSKP VNKDRYISKM FLRGDSVIVV LRNPLIAGK

UniProtKB: Small nuclear ribonucleoprotein Sm D2

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Macromolecule #5: Small nuclear ribonucleoprotein Sm D3

MacromoleculeName: Small nuclear ribonucleoprotein Sm D3 / type: protein_or_peptide / ID: 5 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 13.940308 KDa
SequenceString:
MSIGVPIKVL HEAEGHIVTC ETNTGEVYRG KLIEAEDNMN CQMSNITVTY RDGRVAQLEQ VYIRGSKIRF LILPDMLKNA PMLKSMKNK NQGSGAGRGK AAILKAQVAA RGRGRGMGRG NIFQKRR

UniProtKB: Small nuclear ribonucleoprotein Sm D3

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Macromolecule #6: U4/U6 small nuclear ribonucleoprotein Prp3

MacromoleculeName: U4/U6 small nuclear ribonucleoprotein Prp3 / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 77.669188 KDa
SequenceString: MALSKRELDE LKPWIEKTVK RVLGFSEPTV VTAALNCVGK GMDKKKAADH LKPFLDDSTL RFVDKLFEAV EEGRSSRHSK SSSDRSRKR ELKEVFGDDS EISKESSGVK KRRIPRFEEV EEEPEVIPGP PSESPGMLTK LQIKQMMEAA TRQIEERKKQ L SFISPPTP ...String:
MALSKRELDE LKPWIEKTVK RVLGFSEPTV VTAALNCVGK GMDKKKAADH LKPFLDDSTL RFVDKLFEAV EEGRSSRHSK SSSDRSRKR ELKEVFGDDS EISKESSGVK KRRIPRFEEV EEEPEVIPGP PSESPGMLTK LQIKQMMEAA TRQIEERKKQ L SFISPPTP QPKTPSSSQP ERLPIGNTIQ PSQAATFMND AIEKARKAAE LQARIQAQLA LKPGLIGNAN MVGLANLHAM GI APPKVEL KDQTKPTPLI LDEQGRTVDA TGKEIELTHR MPTLKANIRA VKREQFKQQL KEKPSEDMES NTFFDPRVSI APS QRQRRT FKFHDKGKFE KIAQRLRTKA QLEKLQAEIS QAARKTGIHT STRLALIAPK KELKEGDIPE IEWWDSYIIP NGFD LTEEN PKREDYFGIT NLVEHPAQLN PPVDNDTPVT LGVYLTKKEQ KKLRRQTRRE AQKELQEKVR LGLMPPPEPK VRISN LMRV LGTEAVQDPT KVEAHVRAQM AKRQKAHEEA NAARKLTAEQ RKVKKIKKLK EDISQGVHIS VYRVRNLSNP AKKFKI EAN AGQLYLTGVV VLHKDVNVVV VEGGPKAQKK FKRLMLHRIK WDEQTSNTKG DDDEESDEEA VKKTNKCVLV WEGTAKD RS FGEMKFKQCP TENMAREHFK KHGAEHYWDL ALSESVLEST D

UniProtKB: U4/U6 small nuclear ribonucleoprotein Prp3

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Macromolecule #7: U4/U6 small nuclear ribonucleoprotein Prp4

MacromoleculeName: U4/U6 small nuclear ribonucleoprotein Prp4 / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 58.536105 KDa
SequenceString: MASSRASSTQ ATKTKAPDDL VAPVVKKPHI YYGSLEEKER ERLAKGESGI LGKDGLKAGI EAGNINITSG EVFEIEEHIS ERQAEVLAE FERRKRARQI NVSTDDSEVK ACLRALGEPI TLFGEGPAER RERLRNILSV VGTDALKKTK KDDEKSKKSK E EYQQTWYH ...String:
MASSRASSTQ ATKTKAPDDL VAPVVKKPHI YYGSLEEKER ERLAKGESGI LGKDGLKAGI EAGNINITSG EVFEIEEHIS ERQAEVLAE FERRKRARQI NVSTDDSEVK ACLRALGEPI TLFGEGPAER RERLRNILSV VGTDALKKTK KDDEKSKKSK E EYQQTWYH EGPNSLKVAR LWIANYSLPR AMKRLEEARL HKEIPETTRT SQMQELHKSL RSLNNFCSQI GDDRPISYCH FS PNSKMLA TACWSGLCKL WSVPDCNLLH TLRGHNTNVG AIVFHPKSTV SLDPKDVNLA SCAADGSVKL WSLDSDEPVA DIE GHTVRV ARVMWHPSGR FLGTTCYDRS WRLWDLEAQE EILHQEGHSM GVYDIAFHQD GSLAGTGGLD AFGRVWDLRT GRCI MFLEG HLKEIYGINF SPNGYHIATG SGDNTCKVWD LRQRRCVYTI PAHQNLVTGV KFEPIHGNFL LTGAYDNTAK IWTHP GWSP LKTLAGHEGK VMGLDISSDG QLIATCSYDR TFKLWMAE

UniProtKB: U4/U6 small nuclear ribonucleoprotein Prp4

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Macromolecule #8: U4/U6 small nuclear ribonucleoprotein Prp31

MacromoleculeName: U4/U6 small nuclear ribonucleoprotein Prp31 / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 55.528969 KDa
SequenceString: MSLADELLAD LEEAAEEEEG GSYGEEEEEP AIEDVQEETQ LDLSGDSVKT IAKLWDSKMF AEIMMKIEEY ISKQAKASEV MGPVEAAPE YRVIVDANNL TVEIENELNI IHKFIRDKYS KRFPELESLV PNALDYIRTV KELGNSLDKC KNNENLQQIL T NATIMVVS ...String:
MSLADELLAD LEEAAEEEEG GSYGEEEEEP AIEDVQEETQ LDLSGDSVKT IAKLWDSKMF AEIMMKIEEY ISKQAKASEV MGPVEAAPE YRVIVDANNL TVEIENELNI IHKFIRDKYS KRFPELESLV PNALDYIRTV KELGNSLDKC KNNENLQQIL T NATIMVVS VTASTTQGQQ LSEEELERLE EACDMALELN ASKHRIYEYV ESRMSFIAPN LSIIIGASTA AKIMGVAGGL TN LSKMPAC NIMLLGAQRK TLSGFSSTSV LPHTGYIYHS DIVQSLPPDL RRKAARLVAA KCTLAARVDS FHESTEGKVG YEL KDEIER KFDKWQEPPP VKQVKPLPAP LDGQRKKRGG RRYRKMKERL GLTEIRKQAN RMSFGEIEED AYQEDLGFSL GHLG KSGSG RVRQTQVNEA TKARISKTLQ RTLQKQSVVY GGKSTIRDRS SGTASSVAFT PLQGLEIVNP QAAEKKVAEA NQKYF SSMA EFLKVKGEKS GLMST

UniProtKB: U4/U6 small nuclear ribonucleoprotein Prp31

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Macromolecule #9: NHP2-like protein 1

MacromoleculeName: NHP2-like protein 1 / type: protein_or_peptide / ID: 9 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 14.191524 KDa
SequenceString:
MTEADVNPKA YPLADAHLTK KLLDLVQQSC NYKQLRKGAN EATKTLNRGI SEFIVMAADA EPLEIILHLP LLCEDKNVPY VFVRSKQAL GRACGVSRPV IACSVTIKEG SQLKQQIQSI QQSIERLLV

UniProtKB: NHP2-like protein 1

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Macromolecule #10: Small nuclear ribonucleoprotein-associated proteins B and B'

MacromoleculeName: Small nuclear ribonucleoprotein-associated proteins B and B'
type: protein_or_peptide / ID: 10 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 24.642131 KDa
SequenceString: MTVGKSSKML QHIDYRMRCI LQDGRIFIGT FKAFDKHMNL ILCDCDEFRK IKPKNSKQAE REEKRVLGLV LLRGENLVSM TVEGPPPKD TGIARVPLAG AAGGPGIGRA AGRGIPAGVP MPQAPAGLAG PVRGVGGPSQ QVMTPQGRGT VAAAAAAATA S IAGAPTQY ...String:
MTVGKSSKML QHIDYRMRCI LQDGRIFIGT FKAFDKHMNL ILCDCDEFRK IKPKNSKQAE REEKRVLGLV LLRGENLVSM TVEGPPPKD TGIARVPLAG AAGGPGIGRA AGRGIPAGVP MPQAPAGLAG PVRGVGGPSQ QVMTPQGRGT VAAAAAAATA S IAGAPTQY PPGRGGPPPP MGRGAPPPGM MGPPPGMRPP MGPPMGIPPG RGTPMGMPPP GMRPPPPGMR GPPPPGMRPP RP

UniProtKB: Small nuclear ribonucleoprotein-associated proteins B and B'

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Macromolecule #11: Small nuclear ribonucleoprotein E

MacromoleculeName: Small nuclear ribonucleoprotein E / type: protein_or_peptide / ID: 11 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 10.817601 KDa
SequenceString:
MAYRGQGQKV QKVMVQPINL IFRYLQNRSR IQVWLYEQVN MRIEGCIIGF DEYMNLVLDD AEEIHSKTKS RKQLGRIMLK GDNITLLQS VSN

UniProtKB: Small nuclear ribonucleoprotein E

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Macromolecule #12: Small nuclear ribonucleoprotein F

MacromoleculeName: Small nuclear ribonucleoprotein F / type: protein_or_peptide / ID: 12 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 9.734171 KDa
SequenceString:
MSLPLNPKPF LNGLTGKPVM VKLKWGMEYK GYLVSVDGYM NMQLANTEEY IDGALSGHLG EVLIRCNNVL YIRGVEEEEE DGEMRE

UniProtKB: Small nuclear ribonucleoprotein F

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Macromolecule #13: Small nuclear ribonucleoprotein G

MacromoleculeName: Small nuclear ribonucleoprotein G / type: protein_or_peptide / ID: 13 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 8.508084 KDa
SequenceString:
MSKAHPPELK KFMDKKLSLK LNGGRHVQGI LRGFDPFMNL VIDECVEMAT SGQQNNIGMV VIRGNSIIML EALERV

UniProtKB: Small nuclear ribonucleoprotein G

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Macromolecule #15: Pre-mRNA-processing-splicing factor 8

MacromoleculeName: Pre-mRNA-processing-splicing factor 8 / type: protein_or_peptide / ID: 15 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 271.508281 KDa
SequenceString: MSEEKLQEKA RKWQQLQAKR YAEKRKFGFV DAQKEDMPPE HVRKIIRDHG DMTNRKFRHD KRVYLGALKY MPHAVLKLLE NMPMPWEQI RDVPVLYHIT GAISFVNEIP WVIEPVYISQ WGSMWIMMRR EKRDRRHFKR MRFPPFDDEE PPLDYADNIL D VEPLEAIQ ...String:
MSEEKLQEKA RKWQQLQAKR YAEKRKFGFV DAQKEDMPPE HVRKIIRDHG DMTNRKFRHD KRVYLGALKY MPHAVLKLLE NMPMPWEQI RDVPVLYHIT GAISFVNEIP WVIEPVYISQ WGSMWIMMRR EKRDRRHFKR MRFPPFDDEE PPLDYADNIL D VEPLEAIQ LELDPEEDAP VLDWFYDHQP LRDSRKYVNG STYQRWQFTL PMMSTLYRLA NQLLTDLVDD NYFYLFDLKA FF TSKALNM AIPGGPKFEP LVRDINLQDE DWNEFNDINK IIIRQPIRTE YKIAFPYLYN NLPHHVHLTW YHTPNVVFIK TED PDLPAF YFDPLINPIS HRHSVKSQEP LPDDDEEFEL PEFVEPFLKD TPLYTDNTAN GIALLWAPRP FNLRSGRTRR ALDI PLVKN WYREHCPAGQ PVKVRVSYQK LLKYYVLNAL KHRPPKAQKK RYLFRSFKAT KFFQSTKLDW VEVGLQVCRQ GYNML NLLI HRKNLNYLHL DYNFNLKPVK TLTTKERKKS RFGNAFHLCR EVLRLTKLVV DSHVQYRLGN VDAFQLADGL QYIFAH VGQ LTGMYRYKYK LMRQIRMCKD LKHLIYYRFN TGPVGKGPGC GFWAAGWRVW LFFMRGITPL LERWLGNLLA RQFEGRH SK GVAKTVTKQR VESHFDLELR AAVMHDILDM MPEGIKQNKA RTILQHLSEA WRCWKANIPW KVPGLPTPIE NMILRYVK A KADWWTNTAH YNRERIRRGA TVDKTVCKKN LGRLTRLYLK AEQERQHNYL KDGPYITAEE AVAVYTTTVH WLESRRFSP IPFPPLSYKH DTKLLILALE RLKEAYSVKS RLNQSQREEL GLIEQAYDNP HEALSRIKRH LLTQRAFKEV GIEFMDLYSH LVPVYDVEP LEKITDAYLD QYLWYEADKR RLFPPWIKPA DTEPPPLLVY KWCQGINNLQ DVWETSEGEC NVMLESRFEK M YEKIDLTL LNRLLRLIVD HNIADYMTAK NNVVINYKDM NHTNSYGIIR GLQFASFIVQ YYGLVMDLLV LGLHRASEMA GP PQMPNDF LSFQDIATEA AHPIRLFCRY IDRIHIFFRF TADEARDLIQ RYLTEHPDPN NENIVGYNNK KCWPRDARMR LMK HDVNLG RAVFWDIKNR LPRSVTTVQW ENSFVSVYSK DNPNLLFNMC GFECRILPKC RTSYEEFTHK DGVWNLQNEV TKER TAQCF LRVDDESMQR FHNRVRQILM ASGSTTFTKI VNKWNTALIG LMTYFREAVV NTQELLDLLV KCENKIQTRI KIGLN SKMP SRFPPVVFYT PKELGGLGML SMGHVLIPQS DLRWSKQTDV GITHFRSGMS HEEDQLIPNL YRYIQPWESE FIDSQR VWA EYALKRQEAI AQNRRLTLED LEDSWDRGIP RINTLFQKDR HTLAYDKGWR VRTDFKQYQV LKQNPFWWTH QRHDGKL WN LNNYRTDMIQ ALGGVEGILE HTLFKGTYFP TWEGLFWEKA SGFEESMKWK KLTNAQRSGL NQIPNRRFTL WWSPTINR A NVYVGFQVQL DLTGIFMHGK IPTLKISLIQ IFRAHLWQKI HESIVMDLCQ VFDQELDALE IETVQKETIH PRKSYKMNS SCADILLFAS YKWNVSRPSL LADSKDVMDS TTTQKYWIDI QLRWGDYDSH DIERYARAKF LDYTTDNMSI YPSPTGVLIA IDLAYNLHS AYGNWFPGSK PLIQQAMAKI MKANPALYVL RERIRKGLQL YSSEPTEPYL SSQNYGELFS NQIIWFVDDT N VYRVTIHK TFEGNLTTKP INGAIFIFNP RTGQLFLKII HTSVWAGQKR LGQLAKWKTA EEVAALIRSL PVEEQPKQII VT RKGMLDP LEVHLLDFPN IVIKGSELQL PFQACLKVEK FGDLILKATE PQMVLFNLYD DWLKTISSYT AFSRLILILR ALH VNNDRA KVILKPDKTT ITEPHHIWPT LTDEEWIKVE VQLKDLILAD YGKKNNVNVA SLTQSEIRDI ILGMEISAPS QQRQ QIAEI EKQTKEQSQL TATQTRTVNK HGDEIITSTT SNYETQTFSS KTEWRVRAIS AANLHLRTNH IYVSSDDIKE TGYTY ILPK NVLKKFICIS DLRAQIAGYL YGVSPPDNPQ VKEIRCIVMV PQWGTHQTVH LPGQLPQHEY LKEMEPLGWI HTQPNE SPQ LSPQDVTTHA KIMADNPSWD GEKTIIITCS FTPGSCTLTA YKLTPSGYEW GRQNTDKGNN PKGYLPSHYE RVQMLLS DR FLGFFMVPAQ SSWNYNFMGV RHDPNMKYEL QLANPKEFYH EVHRPSHFLN FALLQEGEVY SADREDLYA

UniProtKB: Pre-mRNA-processing-splicing factor 8

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Macromolecule #16: U5 small nuclear ribonucleoprotein 200 kDa helicase

MacromoleculeName: U5 small nuclear ribonucleoprotein 200 kDa helicase / type: protein_or_peptide / ID: 16 / Number of copies: 1 / Enantiomer: LEVO / EC number: RNA helicase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 244.823422 KDa
SequenceString: MADVTARSLQ YEYKANSNLV LQADRSLIDR TRRDEPTGEV LSLVGKLEGT RMGDKAQRTK PQMQEERRAK RRKRDEDRHD INKMKGYTL LSEGIDEMVG IIYKPKTKET RETYEVLLSF IQAALGDQPR DILCGAADEV LAVLKNEKLR DKERRKEIDL L LGQTDDTR ...String:
MADVTARSLQ YEYKANSNLV LQADRSLIDR TRRDEPTGEV LSLVGKLEGT RMGDKAQRTK PQMQEERRAK RRKRDEDRHD INKMKGYTL LSEGIDEMVG IIYKPKTKET RETYEVLLSF IQAALGDQPR DILCGAADEV LAVLKNEKLR DKERRKEIDL L LGQTDDTR YHVLVNLGKK ITDYGGDKEI QNMDDNIDET YGVNVQFESD EEEGDEDVYG EVREEASDDD MEGDEAVVRC TL SANLVAS GELMSSKKKD LHPRDIDAFW LQRQLSRFYD DAIVSQKKAD EVLEILKTAS DDRECENQLV LLLGFNTFDF IKV LRQHRM MILYCTLLAS AQSEAEKERI MGKMEADPEL SKFLYQLHET EKEDLIREER SRRERVRQSR MDTDLETMDL DQGG EALAP RQVLDLEDLV FTQGSHFMAN KRCQLPDGSF RRQRKGYEEV HVPALKPKPF GSEEQLLPVE KLPKYAQAGF EGFKT LNRI QSKLYRAALE TDENLLLCAP TGAGKTNVAL MCMLREIGKH INMDGTINVD DFKIIYIAPM RSLVQEMVGS FGKRLA TYG ITVAELTGDH QLCKEEISAT QIIVCTPEKW DIITRKGGER TYTQLVRLII LDEIHLLHDD RGPVLEALVA RAIRNIE MT QEDVRLIGLS ATLPNYEDVA TFLRVDPAKG LFYFDNSFRP VPLEQTYVGI TEKKAIKRFQ IMNEIVYEKI MEHAGKNQ V LVFVHSRKET GKTARAIRDM CLEKDTLGLF LREGSASTEV LRTEAEQCKN LELKDLLPYG FAIHHAGMTR VDRTLVEDL FADKHIQVLV STATLAWGVN LPAHTVIIKG TQVYSPEKGR WTELGALDIL QMLGRAGRPQ YDTKGEGILI TSHGELQYYL SLLNQQLPI ESQMVSKLPD MLNAEIVLGN VQNAKDAVNW LGYAYLYIRM LRSPTLYGIS HDDLKGDPLL DQRRLDLVHT A ALMLDKNN LVKYDKKTGN FQVTELGRIA SHYYITNDTV QTYNQLLKPT LSEIELFRVF SLSSEFKNIT VREEEKLELQ KL LERVPIP VKESIEEPSA KINVLLQAFI SQLKLEGFAL MADMVYVTQS AGRLMRAIFE IVLNRGWAQL TDKTLNLCKM IDK RMWQSM CPLRQFRKLP EEVVKKIEKK NFPFERLYDL NHNEIGELIR MPKMGKTIHK YVHLFPKLEL SVHLQPITRS TLKV ELTIT PDFQWDEKVH GSSEAFWILV EDVDSEVILH HEYFLLKAKY AQDEHLITFF VPVFEPLPPQ YFIRVVSDRW LSCET QLPV SFRHLILPEK YPPPTELLDL QPLPVSALRN SAFESLYQDK FPFFNPIQTQ VFNTVYNSDD NVFVGAPTGS GKTICA EFA ILRMLLQSSE GRCVYITPME ALAEQVYMDW YEKFQDRLNK KVVLLTGETS TDLKLLGKGN IIISTPEKWD ILSRRWK QR KNVQNINLFV VDEVHLIGGE NGPVLEVICS RMRYISSQIE RPIRIVALSS SLSNAKDVAH WLGCSATSTF NFHPNVRP V PLELHIQGFN ISHTQTRLLS MAKPVYHAIT KHSPKKPVIV FVPSRKQTRL TAIDILTTCA ADIQRQRFLH CTEKDLIPY LEKLSDSTLK ETLLNGVGYL HEGLSPMERR LVEQLFSSGA IQVVVASRSL CWGMNVAAHL VIIMDTQYYN GKIHAYVDYP IYDVLQMVG HANRPLQDDE GRCVIMCQGS KKDFFKKFLY EPLPVESHLD HCMHDHFNAE IVTKTIENKQ DAVDYLTWTF L YRRMTQNP NYYNLQGISH RHLSDHLSEL VEQTLSDLEQ SKCISIEDEM DVAPLNLGMI AAYYYINYTT IELFSMSLNA KT KVRGLIE IISNAAEYEN IPIRHHEDNL LRQLAQKVPH KLNNPKFNDP HVKTNLLLQA HLSRMQLSAE LQSDTEEILS KAI RLIQAC VDVLSSNGWL SPALAAMELA QMVTQAMWSK DSYLKQLPHF TSEHIKRCTD KGVESVFDIM EMEDEERNAL LQLT DSQIA DVARFCNRYP NIELSYEVVD KDSIRSGGPV VVLVQLEREE EVTGPVIAPL FPQKREEGWW VVIGDAKSNS LISIK RLTL QQKAKVKLDF VAPATGAHNY TLYFMSDAYM GCDQEYKFSV DVKEAETDSD SD

UniProtKB: U5 small nuclear ribonucleoprotein 200 kDa helicase

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Macromolecule #17: 116 kDa U5 small nuclear ribonucleoprotein component

MacromoleculeName: 116 kDa U5 small nuclear ribonucleoprotein component / type: protein_or_peptide / ID: 17 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 95.836836 KDa
SequenceString: LMEQTLPVTV YEMDFLADLM DNSELIRNVT LCGHLHHGKT CFVDCLIEQT HPEIRKRYDQ DLCYTDILFT EQERGVGIKS TPVTVVLPD TKGKSYLFNI MDTPGHVNFS DEVTAGLRIS DGVVLFIDAA EGVMLNTERL IKHAVQERLA VTVCINKIDR L ILELKLPP ...String:
LMEQTLPVTV YEMDFLADLM DNSELIRNVT LCGHLHHGKT CFVDCLIEQT HPEIRKRYDQ DLCYTDILFT EQERGVGIKS TPVTVVLPD TKGKSYLFNI MDTPGHVNFS DEVTAGLRIS DGVVLFIDAA EGVMLNTERL IKHAVQERLA VTVCINKIDR L ILELKLPP TDAYYKLRHI VDEVNGLISM YSTDENLILS PLLGNVCFSS SQYSICFTLG SFAKIYADTF GDINYQEFAK RL WGDIYFN PKTRKFTKKA PTSSSQRSFV EFILEPLYKI LAQVVGDVDT SLPRTLDELG IHLTKEELKL NIRPLLRLVC KKF FGEFTG FVDMCVQHIP SPKVGAKPKI EHTYTGGVDS DLGEAMSDCD PDGPLMCHTT KMYSTDDGVQ FHAFGRVLSG TIHA GQPVK VLGENYTLED EEDSQICTVG RLWISVARYH IEVNRVPAGN WVLIEGVDQP IVKTATITEP RGNEEAQIFR PLKFN TTSV IKIAVEPVNP SELPKMLDGL RKVNKSYPSL TTKVEESGEH VILGTGELYL DCVMHDLRKM YSEIDIKVAD PVVTFC ETV VETSSLKCFA ETPNKKNKIT MIAEPLEKGL AEDIENEVVQ ITWNRKKLGE FFQTKYDWDL LAARSIWAFG PDATGPN IL VDDTLPSEVD KALLGSVKDS IVQGFQWGTR EGPLCDELIR NVKFKILDAV VAQEPLHRGG GQIIPTARRV VYSAFLMA T PRLMEPYYFV EVQAPADCVS AVYTVLARRR GHVTQDAPIP GSPLYTIKAF IPAIDSFGFE TDLRTHTQGQ AFSLSVFHH WQIVPGDPLD KSIVIRPLEP QPAPHLAREF MIKTRRRKGL SEDVSISKFF DDP

UniProtKB: 116 kDa U5 small nuclear ribonucleoprotein component

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Macromolecule #18: Thioredoxin-like protein 4A

MacromoleculeName: Thioredoxin-like protein 4A / type: protein_or_peptide / ID: 18 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 16.807346 KDa
SequenceString:
MSYMLPHLHN GWQVDQAILS EEDRVVVIRF GHDWDPTCMK MDEVLYSIAE KVKNFAVIYL VDITEVPDFN KMYELYDPCT VMFFFRNKH IMIDLGTGNN NKINWAMEDK QEMVDIIETV YRGARKGRGL VVSPKDYSTK YRY

UniProtKB: Thioredoxin-like protein 4A

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Macromolecule #19: Pre-mRNA-processing factor 6

MacromoleculeName: Pre-mRNA-processing factor 6 / type: protein_or_peptide / ID: 19 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 107.092242 KDa
SequenceString: MNKKKKPFLG MPAPLGYVPG LGRGATGFTT RSDIGPARDA NDPVDDRHAP PGKRTVGDQM KKNQAADDDD EDLNDTNYDE FNGYAGSLF SSGPYEKDDE EADAIYAALD KRMDERRKER REQREKEEIE KYRMERPKIQ QQFSDLKRKL AEVTEEEWLS I PEVGDARN ...String:
MNKKKKPFLG MPAPLGYVPG LGRGATGFTT RSDIGPARDA NDPVDDRHAP PGKRTVGDQM KKNQAADDDD EDLNDTNYDE FNGYAGSLF SSGPYEKDDE EADAIYAALD KRMDERRKER REQREKEEIE KYRMERPKIQ QQFSDLKRKL AEVTEEEWLS I PEVGDARN KRQRNPRYEK LTPVPDSFFA KHLQTGENHT SVDPRQTQFG GLNTPYPGGL NTPYPGGMTP GLMTPGTGEL DM RKIGQAR NTLMDMRLSQ VSDSVSGQTV VDPKGYLTDL NSMIPTHGGD INDIKKARLL LKSVRETNPH HPPAWIASAR LEE VTGKLQ VARNLIMKGT EMCPKSEDVW LEAARLQPGD TAKAVVAQAV RHLPQSVRIY IRAAELETDI RAKKRVLRKA LEHV PNSVR LWKAAVELEE PEDARIMLSR AVECCPTSVE LWLALARLET YENARKVLNK ARENIPTDRH IWITAAKLEE ANGNT QMVE KIIDRAITSL RANGVEINRE QWIQDAEECD RAGSVATCQA VMRAVIGIGI EEEDRKHTWM EDADSCVAHN ALECAR AIY AYALQVFPSK KSVWLRAAYF EKNHGTRESL EALLQRAVAH CPKAEVLWLM GAKSKWLAGD VPAARSILAL AFQANPN SE EIWLAAVKLE SENDEYERAR RLLAKARSSA PTARVFMKSV KLEWVQDNIR AAQDLCEEAL RHYEDFPKLW MMKGQIEE Q KEMMEKAREA YNQGLKKCPH STPLWLLLSR LEEKIGQLTR ARAILEKSRL KNPKNPGLWL ESVRLEYRAG LKNIANTLM AKALQECPNS GILWSEAIFL EARPQRRTKS VDALKKCEHD PHVLLAVAKL FWSQRKITKA REWFHRTVKI DSDLGDAWAF FYKFELQHG TEEQQEEVRK RCESAEPRHG ELWCAVSKDI ANWQKKIGDI LRLVAGRIKN TF

UniProtKB: Pre-mRNA-processing factor 6

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Macromolecule #20: U5 small nuclear ribonucleoprotein 40 kDa protein

MacromoleculeName: U5 small nuclear ribonucleoprotein 40 kDa protein / type: protein_or_peptide / ID: 20 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 39.359492 KDa
SequenceString: MIEQQKRKGP ELPLVPVKRQ RHELLLGAGS GPGAGQQQAT PGALLQAGPP RCSSLQAPIM LLSGHEGEVY CCKFHPNGST LASAGFDRL ILLWNVYGDC DNYATLKGHS GAVMELHYNT DGSMLFSAST DKTVAVWDSE TGERVKRLKG HTSFVNSCYP A RRGPQLVC ...String:
MIEQQKRKGP ELPLVPVKRQ RHELLLGAGS GPGAGQQQAT PGALLQAGPP RCSSLQAPIM LLSGHEGEVY CCKFHPNGST LASAGFDRL ILLWNVYGDC DNYATLKGHS GAVMELHYNT DGSMLFSAST DKTVAVWDSE TGERVKRLKG HTSFVNSCYP A RRGPQLVC TGSDDGTVKL WDIRKKAAIQ TFQNTYQVLA VTFNDTSDQI ISGGIDNDIK VWDLRQNKLT YTMRGHADSV TG LSLSSEG SYLLSNAMDN TVRVWDVRPF APKERCVKIF QGNVHNFEKN LLRCSWSPDG SKIAAGSADR FVYVWDTTSR RIL YKLPGH AGSINEVAFH PDEPIIISAS SDKRLYMGEI Q

UniProtKB: U5 small nuclear ribonucleoprotein 40 kDa protein

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Macromolecule #21: Probable ATP-dependent RNA helicase DDX23

MacromoleculeName: Probable ATP-dependent RNA helicase DDX23 / type: protein_or_peptide / ID: 21 / Number of copies: 1 / Enantiomer: LEVO / EC number: RNA helicase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 95.785148 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae (brewer's yeast)
SequenceString: MAGELADKKD RDASPSKEER KRSRTPDRER DRDRDRKSSP SKDRKRHRSR DRRRGGSRSR SRSRSKSAER ERRHKERERD KERDRNKKD RDRDKDGHRR DKDRKRSSLS PGRGKDFKSR KDRDSKKDEE DEHGDKKPKA QPLSLEELLA KKKAEEEAEA K PKFLSKAE ...String:
MAGELADKKD RDASPSKEER KRSRTPDRER DRDRDRKSSP SKDRKRHRSR DRRRGGSRSR SRSRSKSAER ERRHKERERD KERDRNKKD RDRDKDGHRR DKDRKRSSLS PGRGKDFKSR KDRDSKKDEE DEHGDKKPKA QPLSLEELLA KKKAEEEAEA K PKFLSKAE REAEALKRRQ QEVEERQRML EEERKKRKQF QDLGRKMLED PQERERRERR ERMERETNGN EDEEGRQKIR EE KDKSKEL HAIKERYLGG IKKRRRTRHL NDRKFVFEWD ASEDTSIDYN PLYKERHQVQ LLGRGFIAGI DLKQQKREQS RFY GDLMEK RRTLEEKEQE EARLRKLRKK EAKQRWDDRH WSQKKLDEMT DRDWRIFRED YSITTKGGKI PNPIRSWKDS SLPP HILEV IDKCGYKEPT PIQRQAIPIG LQNRDIIGVA ETGSGKTAAF LIPLLVWITT LPKIDRIEES DQGPYAIILA PTREL AQQI EEETIKFGKP LGIRTVAVIG GISREDQGFR LRMGCEIVIA TPGRLIDVLE NRYLVLSRCT YVVLDEADRM IDMGFE PDV QKILEHMPVS NQKPDTDEAE DPEKMLANFE SGKHKYRQTV MFTATMPPAV ERLARSYLRR PAVVYIGSAG KPHERVE QK VFLMSESEKR KKLLAILEQG FDPPIIIFVN QKKGCDVLAK SLEKMGYNAC TLHGGKGQEQ REFALSNLKA GAKDILVA T DVAGRGIDIQ DVSMVVNYDM AKNIEDYIHR IGRTGRAGKS GVAITFLTKE DSAVFYELKQ AILESPVSSC PPELANHPD AQHKPGTILT KKRREETIFA

UniProtKB: Probable ATP-dependent RNA helicase DDX23

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Macromolecule #23: U6 snRNA-associated Sm-like protein LSm2

MacromoleculeName: U6 snRNA-associated Sm-like protein LSm2 / type: protein_or_peptide / ID: 23 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 10.847495 KDa
SequenceString:
MLFYSFFKSL VGKDVVVELK NDLSICGTLH SVDQYLNIKL TDISVTDPEK YPHMLSVKNC FIRGSVVRYV QLPADEVDTQ LLQDAARKE ALQQKQ

UniProtKB: U6 snRNA-associated Sm-like protein LSm2

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Macromolecule #24: U6 snRNA-associated Sm-like protein LSm3

MacromoleculeName: U6 snRNA-associated Sm-like protein LSm3 / type: protein_or_peptide / ID: 24 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 11.85939 KDa
SequenceString:
MADDVDQQQT TNTVEEPLDL IRLSLDERIY VKMRNDRELR GRLHAYDQHL NMILGDVEET VTTIEIDEET YEEIYKSTKR NIPMLFVRG DGVVLVAPPL RVG

UniProtKB: U6 snRNA-associated Sm-like protein LSm3

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Macromolecule #25: U6 snRNA-associated Sm-like protein LSm4

MacromoleculeName: U6 snRNA-associated Sm-like protein LSm4 / type: protein_or_peptide / ID: 25 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 15.375775 KDa
SequenceString:
MLPLSLLKTA QNHPMLVELK NGETYNGHLV SCDNWMNINL REVICTSRDG DKFWRMPECY IRGSTIKYLR IPDEIIDMVK EEVVAKGRG RGGLQQQKQQ KGRGMGGAGR GVFGGRGRGG IPGTGRGQPE KKPGRQAGKQ

UniProtKB: U6 snRNA-associated Sm-like protein LSm4

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Macromolecule #26: U6 snRNA-associated Sm-like protein LSm5

MacromoleculeName: U6 snRNA-associated Sm-like protein LSm5 / type: protein_or_peptide / ID: 26 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 9.945448 KDa
SequenceString:
MAANATTNPS QLLPLELVDK CIGSRIHIVM KSDKEIVGTL LGFDDFVNMV LEDVTEFEIT PEGRRITKLD QILLNGNNIT MLVPGGEGP EV

UniProtKB: U6 snRNA-associated Sm-like protein LSm5

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Macromolecule #27: U6 snRNA-associated Sm-like protein LSm6

MacromoleculeName: U6 snRNA-associated Sm-like protein LSm6 / type: protein_or_peptide / ID: 27 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 9.139571 KDa
SequenceString:
MSLRKQTPSD FLKQIIGRPV VVKLNSGVDY RGVLACLDGY MNIALEQTEE YVNGQLKNKY GDAFIRGNNV LYISTQKRRM

UniProtKB: U6 snRNA-associated Sm-like protein LSm6

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Macromolecule #28: U6 snRNA-associated Sm-like protein LSm7

MacromoleculeName: U6 snRNA-associated Sm-like protein LSm7 / type: protein_or_peptide / ID: 28 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 11.617363 KDa
SequenceString:
MADKEKKKKE SILDLSKYID KTIRVKFQGG REASGILKGF DPLLNLVLDG TIEYMRDPDD QYKLTEDTRQ LGLVVCRGTS VVLICPQDG MEAIPNPFIQ QQDA

UniProtKB: U6 snRNA-associated Sm-like protein LSm7

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Macromolecule #29: U6 snRNA-associated Sm-like protein LSm8

MacromoleculeName: U6 snRNA-associated Sm-like protein LSm8 / type: protein_or_peptide / ID: 29 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 10.410589 KDa
SequenceString:
MTSALENYIN RTVAVITSDG RMIVGTLKGF DQTINLILDE SHERVFSSSQ GVEQVVLGLY IVRGDNVAVI GEIDEETDSA LDLGNIRAE PLNSVAH

UniProtKB: U6 snRNA-associated Sm-like protein LSm8

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Macromolecule #30: RNA-binding protein 42

MacromoleculeName: RNA-binding protein 42 / type: protein_or_peptide / ID: 30 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 50.477922 KDa
SequenceString: MAGAGPAPGL PGAGGPVVPG PGAGIPGKSG EERLKEMEAE MALFEQEVLG APVPGIPTAV PAVPTVPTVP TVEAMQVPAA PVIRPIIAT NTYQQVQQTL EARAAAAATV VPPMVGGPPF VGPVGFGPGD RSHLDSPEAR EAMFLRRAAV APQRAPILRP A FVPHVLQR ...String:
MAGAGPAPGL PGAGGPVVPG PGAGIPGKSG EERLKEMEAE MALFEQEVLG APVPGIPTAV PAVPTVPTVP TVEAMQVPAA PVIRPIIAT NTYQQVQQTL EARAAAAATV VPPMVGGPPF VGPVGFGPGD RSHLDSPEAR EAMFLRRAAV APQRAPILRP A FVPHVLQR ADSALSSAAA GPRPMALRPP HQALVGPPLP GPPGPPMMLP PMARAPGPPL GSMAALRPPL EEPAAPRELG LG LGLGLKE KEEAVVAAAA GLEEASAAVA VGAGGAPAGP AVIGPSLPLA LAMPLPEPEP LPLPLEVVRG LLPPLRIPEL LSL RPRPRP PRPEPPPGLM ALEVPEPLGE DKKKGKPEKL KRCIRTAAGS SWEDPSLLEW DADDFRIFCG DLGNEVNDDI LARA FSRFP SFLKAKVIRD KRTGKTKGYG FVSFKDPSDY VRAMREMNGK YVGSRPIKLR KSMWKDRNLD VVRKKQKEKK KLGLR

UniProtKB: RNA-binding protein 42

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Macromolecule #31: U4/U6.U5 tri-snRNP-associated protein 1

MacromoleculeName: U4/U6.U5 tri-snRNP-associated protein 1 / type: protein_or_peptide / ID: 31 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 90.414117 KDa
SequenceString: MGSSKKHRGE KEAAGTTAAA GTGGATEQPP RHREHKKHKH RSGGSGGSGG ERRKRSRERG GERGSGRRGA EAEARSSTHG RERSQAEPS ERRVKREKRD DGYEAAASSK TSSGDASSLS IEETNKLRAK LGLKPLEVNA IKKEAGTKEE PVTADVINPM A LRQREELR ...String:
MGSSKKHRGE KEAAGTTAAA GTGGATEQPP RHREHKKHKH RSGGSGGSGG ERRKRSRERG GERGSGRRGA EAEARSSTHG RERSQAEPS ERRVKREKRD DGYEAAASSK TSSGDASSLS IEETNKLRAK LGLKPLEVNA IKKEAGTKEE PVTADVINPM A LRQREELR EKLAAAKEKR LLNQKLGKIK TLGEDDPWLD DTAAWIERSR QLQKEKDLAE KRAKLLEEMD QEFGVSTLVE EE FGQRRQD LYSARDLQGL TVEHAIDSFR EGETMILTLK DKGVLQEEED VLVNVNLVDK ERAEKNVELR KKKPDYLPYA EDE SVDDLA QQKPRSILSK YDEELEGERP HSFRLEQGGT ADGLRERELE EIRAKLRLQA QSLSTVGPRL ASEYLTPEEM VTFK KTKRR VKKIRKKEKE VVVRADDLLP LGDQTQDGDF GSRLRGRGRR RVSEVEEEKE PVPQPLPSDD TRVENMDISD EEEGG APPP GSPQVLEEDE AELELQKQLE KGRRLRQLQQ LQQLRDSGEK VVEIVKKLES RQRGWEEDED PERKGAIVFN ATSEFC RTL GEIPTYGLAG NREEQEELMD FERDEERSAN GGSESDGEEN IGWSTVNLDE EKQQQDFSAS STTILDEEPI VNRGLAA AL LLCQNKGLLE TTVQKVARVK APNKSLPSAV YCIEDKMAID DKYSRREEYR GFTQDFKEKD GYKPDVKIEY VDETGRKL T PKEAFRQLSH RFHGKGSGKM KTERRMKKLD EEALLKKMSS SDTPLGTVAL LQEKQKAQKT PYIVLSGSGK SMNANTITK

UniProtKB: U4/U6.U5 tri-snRNP-associated protein 1

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Macromolecule #32: U4/U6.U5 tri-snRNP-associated protein 2

MacromoleculeName: U4/U6.U5 tri-snRNP-associated protein 2 / type: protein_or_peptide / ID: 32 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 64.408445 KDa
SequenceString: MSGRSKRESR GSTRGKRESE SRGSSGRVKR ERDREREPEA ASSRGSPVRV KREFEPASAR EAPASVVPFV RVKREREVDE DSEPEREVR AKNGRVDSED RRSRHCPYLD TINRSVLDFD FEKLCSISLS HINAYACLVC GKYFQGRGLK SHAYIHSVQF S HHVFLNLH ...String:
MSGRSKRESR GSTRGKRESE SRGSSGRVKR ERDREREPEA ASSRGSPVRV KREFEPASAR EAPASVVPFV RVKREREVDE DSEPEREVR AKNGRVDSED RRSRHCPYLD TINRSVLDFD FEKLCSISLS HINAYACLVC GKYFQGRGLK SHAYIHSVQF S HHVFLNLH TLKFYCLPDN YEIIDSSLED ITYVLKPTFT KQQIANLDKQ AKLSRAYDGT TYLPGIVGLN NIKANDYANA VL QALSNVP PLRNYFLEED NYKNIKRPPG DIMFLLVQRF GELMRKLWNP RNFKAHVSPH EMLQAVVLCS KKTFQITKQG DGV DFLSWF LNALHSALGG TKKKKKTIVT DVFQGSMRIF TKKLPHPDLP AEEKEQLLHN DEYQETMVES TFMYLTLDLP TAPL YKDEK EQLIIPQVPL FNILAKFNGI TEKEYKTYKE NFLKRFQLTK LPPYLIFCIK RFTKNNFFVE KNPTIVNFPI TNVDL REYL SEEVQAVHKN TTYDLIANIV HDGKPSEGSY RIHVLHHGTG KWYELQDLQV TDILPQMITL SEAYIQIWKR R

UniProtKB: Ubiquitin carboxyl-terminal hydrolase 39

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Macromolecule #2: U4 snRNA

MacromoleculeName: U4 snRNA / type: rna / ID: 2 / Number of copies: 1
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 46.997742 KDa
SequenceString:
(M7M)AGCUUUGCG CAGUGGCAGU AUCGUAGCCA AUGAGGUUUA UCCGAGGCGC GAUUAUUGCU AAUUGAAAAC UUUUCC CAA UACCCCGCCG UGACGACUUG CAAUAUAGUC GGCAUUGGCA AUUUUUGACA GUCUCUACGG AGACUGG

+
Macromolecule #14: U5 snRNA

MacromoleculeName: U5 snRNA / type: rna / ID: 14 / Number of copies: 1
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 37.254855 KDa
SequenceString:
AUACUCUGGU UUCUCUUCAG AUCGCAUAAA UCUUUCGCCU UUUACUAAAG AUUUCCGUGG AGAGGAACAA CUCUGAGUCU UAACCCAAU UUUUUGAGGC CUUGCUUUGG CAAGGCUA

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Macromolecule #22: U6 snRNA

MacromoleculeName: U6 snRNA / type: rna / ID: 22 / Number of copies: 1
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 28.34291 KDa
SequenceString:
GUGCUCGCUU CGGCAGCACA UAUACUAAAA UUGGAACGAU ACAGAGAAGA UUAGCAUGGC CCCUGCGCAA GGAUGACACG CAAAUUUU

+
Macromolecule #33: INOSITOL HEXAKISPHOSPHATE

MacromoleculeName: INOSITOL HEXAKISPHOSPHATE / type: ligand / ID: 33 / Number of copies: 1 / Formula: IHP
Molecular weightTheoretical: 660.035 Da
Chemical component information

ChemComp-IHP:
INOSITOL HEXAKISPHOSPHATE

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Macromolecule #34: MAGNESIUM ION

MacromoleculeName: MAGNESIUM ION / type: ligand / ID: 34 / Number of copies: 1 / Formula: MG
Molecular weightTheoretical: 24.305 Da

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Macromolecule #35: GUANOSINE-5'-TRIPHOSPHATE

MacromoleculeName: GUANOSINE-5'-TRIPHOSPHATE / type: ligand / ID: 35 / Number of copies: 1 / Formula: GTP
Molecular weightTheoretical: 523.18 Da
Chemical component information

ChemComp-GTP:
GUANOSINE-5'-TRIPHOSPHATE / GTP, energy-carrying molecule*YM

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Macromolecule #36: ZINC ION

MacromoleculeName: ZINC ION / type: ligand / ID: 36 / Number of copies: 1 / Formula: ZN
Molecular weightTheoretical: 65.409 Da

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

Concentration1.3 mg/mL
BufferpH: 7.9
Component:
ConcentrationName
20.0 mMHepes KOH
50.0 mMKCL
1.0 mMDTT
GridModel: Quantifoil R2/2 / Material: COPPER / Mesh: 300 / Support film - Material: CARBON / Support film - topology: CONTINUOUS / Support film - Film thickness: 6 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 20 sec.
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK III / Details: Wait 30s, blot for 2s to 3s..

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Specialist opticsEnergy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Digitization - Frames/image: 1-40 / Average exposure time: 6.0 sec. / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 70.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal magnification: 130000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 1147653
Startup modelType of model: EMDB MAP
EMDB ID:

6581

Final reconstructionNumber classes used: 1 / Applied symmetry - Point group: C1 (asymmetric) / Algorithm: FOURIER SPACE / Resolution.type: BY AUTHOR / Resolution: 2.92 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 3.0) / Number images used: 585488
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.0)
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.0)
Final 3D classificationSoftware - Name: RELION (ver. 3.0)
FSC plot (resolution estimation)

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