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- EMDB-20840: FACT_subnucleosome complex 1 -

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Basic information

Entry
Database: EMDB / ID: EMD-20840
TitleFACT_subnucleosome complex 1
Map dataSharpened map
Sample
  • Complex: FACT_subNucleosome_complex_class1
    • Protein or peptide: Histone H3.1Histone H3
    • Protein or peptide: Histone H4
    • Protein or peptide: Histone H2A
    • Protein or peptide: Histone H2B
    • Protein or peptide: FACT complex subunit SPT16FACT (biology)
    • Protein or peptide: FACT complex subunit SSRP1FACT (biology)
    • DNA: DNA (79-mer)
    • DNA: DNA (79-mer)
Keywordsassembly / disassembly / transient / integrity / TRANSCRIPTION / TRANSCRIPTION-DNA complex
Function / homology
Function and homology information


FACT complex / regulation of chromatin organization / nucleosome disassembly / positive regulation of DNA-templated transcription, elongation / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / nucleosome binding / Tat-mediated elongation of the HIV-1 transcript ...FACT complex / regulation of chromatin organization / nucleosome disassembly / positive regulation of DNA-templated transcription, elongation / Pausing and recovery of Tat-mediated HIV elongation / Tat-mediated HIV elongation arrest and recovery / HIV elongation arrest and recovery / Pausing and recovery of HIV elongation / nucleosome binding / Tat-mediated elongation of the HIV-1 transcript / Formation of HIV-1 elongation complex containing HIV-1 Tat / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Formation of HIV elongation complex in the absence of HIV Tat / Chromatin modifying enzymes / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / epigenetic regulation of gene expression / Packaging Of Telomere Ends / RNA Polymerase II Transcription Elongation / Formation of RNA Pol II elongation complex / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Deposition of new CENPA-containing nucleosomes at the centromere / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / RNA Polymerase II Pre-transcription Events / Inhibition of DNA recombination at telomere / Meiotic synapsis / telomere organization / RNA Polymerase I Promoter Opening / Interleukin-7 signaling / SUMOylation of chromatin organization proteins / Assembly of the ORC complex at the origin of replication / DNA methylation / Condensation of Prophase Chromosomes / HCMV Late Events / Chromatin modifications during the maternal to zygotic transition (MZT) / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / SIRT1 negatively regulates rRNA expression / innate immune response in mucosa / PRC2 methylates histones and DNA / Defective pyroptosis / HDACs deacetylate histones / transcription elongation by RNA polymerase II / RNA Polymerase I Promoter Escape / TP53 Regulates Transcription of DNA Repair Genes / Nonhomologous End-Joining (NHEJ) / Transcriptional regulation by small RNAs / Formation of the beta-catenin:TCF transactivating complex / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / NoRC negatively regulates rRNA expression / G2/M DNA damage checkpoint / B-WICH complex positively regulates rRNA expression / HDMs demethylate histones / DNA Damage/Telomere Stress Induced Senescence / Metalloprotease DUBs / PKMTs methylate histone lysines / RMTs methylate histone arginines / Meiotic recombination / Pre-NOTCH Transcription and Translation / nucleosome assembly / Activation of anterior HOX genes in hindbrain development during early embryogenesis / HCMV Early Events / Transcriptional regulation of granulopoiesis / structural constituent of chromatin / UCH proteinases / nucleosome / antimicrobial humoral immune response mediated by antimicrobial peptide / E3 ubiquitin ligases ubiquitinate target proteins / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / gene expression / RUNX1 regulates transcription of genes involved in differentiation of HSCs / chromatin organization / Factors involved in megakaryocyte development and platelet production / Processing of DNA double-strand break ends / HATs acetylate histones / antibacterial humoral response / histone binding / Senescence-Associated Secretory Phenotype (SASP) / Oxidative Stress Induced Senescence / Estrogen-dependent gene expression / Regulation of TP53 Activity through Phosphorylation / DNA replication / transcription by RNA polymerase II / chromosome, telomeric region / Ub-specific processing proteases / defense response to Gram-positive bacterium / cadherin binding / Amyloid fiber formation / protein heterodimerization activity / negative regulation of cell population proliferation / DNA repair / nucleolus / protein-containing complex / DNA binding / extracellular space / RNA binding / extracellular exosome
Similarity search - Function
: / FACT complex subunit SSRP1, C-terminal domain / : / SSRP1 PH domain / : / FACT complex subunit SPT16, C-terminal domain / FACT complex subunit Spt16, peptidase M24-like domain / FACT complex subunit SSRP1/POB3 / SSRP1, dimerization domain / FACT complex subunit SSRP1/POB3, N-terminal PH domain ...: / FACT complex subunit SSRP1, C-terminal domain / : / SSRP1 PH domain / : / FACT complex subunit SPT16, C-terminal domain / FACT complex subunit Spt16, peptidase M24-like domain / FACT complex subunit SSRP1/POB3 / SSRP1, dimerization domain / FACT complex subunit SSRP1/POB3, N-terminal PH domain / SSRP1 domain superfamily / Structure-specific recognition protein (SSRP1) / POB3-like N-terminal PH domain / FACT complex subunit Spt16 domain / FACT complex subunit (SPT16/CDC68) / FACT complex subunit (SPT16/CDC68) / FACT complex subunit Spt16, N-terminal lobe domain / FACT complex subunit Spt16 / FACT complex subunit SPT16 N-terminal lobe domain / FACT complex subunit SPT16 N-terminal lobe domain / Histone chaperone RTT106/FACT complex subunit SPT16-like, middle domain / Histone chaperone Rttp106-like, middle domain / Histone chaperone Rttp106-like / Creatinase/Aminopeptidase P/Spt16, N-terminal / HMG (high mobility group) box / HMG boxes A and B DNA-binding domains profile. / high mobility group / High mobility group box domain / High mobility group box domain superfamily / Peptidase M24 / Metallopeptidase family M24 / Creatinase/aminopeptidase-like / Histone H2B signature. / Histone H2B / Histone H2B / Histone H2A conserved site / Histone H2A signature. / Histone H2A, C-terminal domain / C-terminus of histone H2A / Histone H2A / Histone 2A / Histone H4, conserved site / Histone H4 signature. / Histone H4 / Histone H4 / CENP-T/Histone H4, histone fold / Centromere kinetochore component CENP-T histone fold / TATA box binding protein associated factor / TATA box binding protein associated factor (TAF), histone-like fold domain / Histone H3 signature 1. / Histone H3 signature 2. / Histone H3 / Histone H3/CENP-A / Histone H2A/H2B/H3 / Core histone H2A/H2B/H3/H4 / Histone-fold / PH-like domain superfamily
Similarity search - Domain/homology
Histone H4 / Histone H2B type 1-C/E/F/G/I / Histone H3.1 / FACT complex subunit SSRP1 / Histone H2A type 1-C / FACT complex subunit SPT16
Similarity search - Component
Biological speciesHomo sapiens (human) / Escherichia coli (E. coli)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.9 Å
AuthorsZhou K / Tan YZ
Funding support United States, 1 items
OrganizationGrant numberCountry
Howard Hughes Medical Institute (HHMI) United States
CitationJournal: Nature / Year: 2020
Title: FACT caught in the act of manipulating the nucleosome.
Authors: Yang Liu / Keda Zhou / Naifu Zhang / Hui Wei / Yong Zi Tan / Zhening Zhang / Bridget Carragher / Clinton S Potter / Sheena D'Arcy / Karolin Luger /
Abstract: The organization of genomic DNA into nucleosomes profoundly affects all DNA-related processes in eukaryotes. The histone chaperone known as 'facilitates chromatin transcription' (FACT) (consisting of ...The organization of genomic DNA into nucleosomes profoundly affects all DNA-related processes in eukaryotes. The histone chaperone known as 'facilitates chromatin transcription' (FACT) (consisting of subunits SPT16 and SSRP1) promotes both disassembly and reassembly of nucleosomes during gene transcription, DNA replication and DNA repair. However, the mechanism by which FACT causes these opposing outcomes is unknown. Here we report two cryo-electron-microscopic structures of human FACT in complex with partially assembled subnucleosomes, with supporting biochemical and hydrogen-deuterium exchange data. We find that FACT is engaged in extensive interactions with nucleosomal DNA and all histone variants. The large DNA-binding surface on FACT appears to be protected by the carboxy-terminal domains of both of its subunits, and this inhibition is released by interaction with H2A-H2B, allowing FACT-H2A-H2B to dock onto a complex containing DNA and histones H3 and H4 (ref. ). SPT16 binds nucleosomal DNA and tethers H2A-H2B through its carboxy-terminal domain by acting as a placeholder for DNA. SSRP1 also contributes to DNA binding, and can assume two conformations, depending on whether a second H2A-H2B dimer is present. Our data suggest a compelling mechanism for how FACT maintains chromatin integrity during polymerase passage, by facilitating removal of the H2A-H2B dimer, stabilizing intermediate subnucleosomal states and promoting nucleosome reassembly. Our findings reconcile discrepancies regarding the many roles of FACT and underscore the dynamic interactions between histone chaperones and nucleosomes.
History
DepositionOct 17, 2019-
Header (metadata) releaseDec 11, 2019-
Map releaseDec 11, 2019-
UpdateMar 20, 2024-
Current statusMar 20, 2024Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.146
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by radius
  • Surface level: 0.146
  • Imaged by UCSF Chimera
  • Download
  • Surface view with fitted model
  • Atomic models: PDB-6upk
  • Surface level: 0.17
  • Imaged by UCSF Chimera
  • Download
Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_20840.png

Downloads & links

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Map

FileDownload / File: emd_20840.map.gz / Format: CCP4 / Size: 30.5 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationSharpened map
Voxel sizeX=Y=Z: 1.40301 Å
Density
Contour LevelBy AUTHOR: 0.146 / Movie #1: 0.146
Minimum - Maximum-0.07594797 - 0.54979336
Average (Standard dev.)0.0053719394 (±0.024740065)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions200200200
Spacing200200200
CellA=B=C: 280.6016 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.403011.403011.40301
M x/y/z200200200
origin x/y/z0.0000.0000.000
length x/y/z280.602280.602280.602
α/β/γ90.00090.00090.000
start NX/NY/NZ-200-200-200
NX/NY/NZ401401401
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS200200200
D min/max/mean-0.0760.5500.005

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Supplemental data

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Mask #1

Fileemd_20840_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Additional map: unfiltered map

Fileemd_20840_additional.map
Annotationunfiltered map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_20840_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_20840_half_map_2.map
Projections & Slices
AxesZYX

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Slices (1/2)
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Histogram (log scale)

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Sample components

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Entire : FACT_subNucleosome_complex_class1

EntireName: FACT_subNucleosome_complex_class1
Components
  • Complex: FACT_subNucleosome_complex_class1
    • Protein or peptide: Histone H3.1Histone H3
    • Protein or peptide: Histone H4
    • Protein or peptide: Histone H2A
    • Protein or peptide: Histone H2B
    • Protein or peptide: FACT complex subunit SPT16FACT (biology)
    • Protein or peptide: FACT complex subunit SSRP1FACT (biology)
    • DNA: DNA (79-mer)
    • DNA: DNA (79-mer)

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Supramolecule #1: FACT_subNucleosome_complex_class1

SupramoleculeName: FACT_subNucleosome_complex_class1 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 320 KDa

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Macromolecule #1: Histone H3.1

MacromoleculeName: Histone H3.1 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 15.437167 KDa
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString:
MARTKQTARK STGGKAPRKQ LATKAARKSA PATGGVKKPH RYRPGTVALR EIRRYQKSTE LLIRKLPFQR LVREIAQDFK TDLRFQSSA VMALQEACEA YLVGLFEDTN LCAIHAKRVT IMPKDIQLAR RIRGERA

UniProtKB: Histone H3.1

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Macromolecule #2: Histone H4

MacromoleculeName: Histone H4 / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 11.394426 KDa
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString:
MSGRGKGGKG LGKGGAKRHR KVLRDNIQGI TKPAIRRLAR RGGVKRISGL IYEETRGVLK VFLENVIRDA VTYTEHAKRK TVTAMDVVY ALKRQGRTLY GFGG

UniProtKB: Histone H4

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Macromolecule #3: Histone H2A

MacromoleculeName: Histone H2A / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 14.135523 KDa
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString:
MSGRGKQGGK ARAKAKSRSS RAGLQFPVGR VHRLLRKGNY AERVGAGAPV YLAAVLEYLT AEILELAGNA ARDNKKTRII PRHLQLAIR NDEELNKLLG RVTIAQGGVL PNIQAVLLPK KTESHHKAKG K

UniProtKB: Histone H2A type 1-C

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Macromolecule #4: Histone H2B

MacromoleculeName: Histone H2B / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 13.937213 KDa
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString:
MPEPAKSAPA PKKGSKKAVT KAQKKDGKKR KRSRKESYSV YVYKVLKQVH PDTGISSKAM GIMNSFVNDI FERIAGEASR LAHYNKRST ITSREIQTAV RLLLPGELAK HAVSEGTKAV TKYTSSK

UniProtKB: Histone H2B type 1-C/E/F/G/I

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Macromolecule #5: FACT complex subunit SPT16

MacromoleculeName: FACT complex subunit SPT16 / type: protein_or_peptide / ID: 5
Details: Amino acids 640-651 cannot be identified due to the resolution limitations. To show the connectivity of the electron density, poly-(UNK) was placed. This was also done for the end of this ...Details: Amino acids 640-651 cannot be identified due to the resolution limitations. To show the connectivity of the electron density, poly-(UNK) was placed. This was also done for the end of this chain (926-967). The full sequence for the experiment is: MHHHHHHAVTLDKDAYYRRVKRLYSNWRKGEDEYANVDAIVVSVGVDEEIVYAKSTALQTWLFGYELTDTIMVFCDDKII FMASKKKVEFLKQIANTKGNENANGAPAITLLIREKNESNKSSFDKMIEAIKESKNGKKIGVFSKDKFPGEFMKSWNDCL NKEGFDKIDISAVVAYTIAVKEDGELNLMKKAASITSEVFNKFFKERVMEIVDADEKVRHSKLAESVEKAIEEKKYLAGA DPSTVEMCYPPIIQSGGNYNLKFSVVSDKNHMHFGAITCAMGIRFKSYCSNLVRTLMVDPSQEVQENYNFLLQLQEELLK ELRHGVKICDVYNAVMDVVKKQKPELLNKITKNLGFGMGIEFREGSLVINSKNQYKLKKGMVFSINLGFSDLTNKEGKKP EEKTYALFIGDTVLVDEDGPATVLTSVKKKVKNVGIFLKNEDEEEEEEEKDEAEDLLGRGSRAALLTERTRNEMTAEEKR RAHQKELAAQLNEEAKRRLTEQKGEQQIQKARKSNVSYKNPSLMPKEPHIREMKIYIDKKYETVIMPVFGIATPFHIATI KNISMSVEGDYTYLRINFYCPGSALGRNEGNIFPNPEATFVKEITYRASNIKAPGEQTVPALNLQNAFRIIKEVQKRYKT REAEEKEKEGIVKQDSLVINLNRSNPKLKDLYIRPNIAQKRMQGSLEAHVNGFRFTSVRGDKVDILYNNIKHALFQPCDG EMIIVLHFHLKNAIMFGKKRHTDVQFYTEVGEITTDLGKHQHMHDRDDLYAEQMEREMRHKLKTAFKNFIEKVEALTKEE LEFEVPFRDLGFNGAPYRSTCLLQPTSSALVNATEWPPFVVTLDEVELIHFERVQFHLKNFDMVIVYKDYSKKVTMINAI PVASLDPIKEWLNSCDLKYTEGVQSLNWTKIMKTIVDDPEGFFEQGGWSFLEPEGEGSDAEEGDSESEIEDETFNPSEDD YEEEEEDSDEDYSSEAEESDYSKESLGSEEESGKDWDELEEEARKADRESRYEEEEEQSRSMSRKRKASVHSSGRGSNRG SRHSSAPPKKKRK
Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 109.574867 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MHHHHHHAVT LDKDAYYRRV KRLYSNWRKG EDEYANVDAI VVSVGVDEEI VYAKSTALQT WLFGYELTDT IMVFCDDKII FMASKKKVE FLKQIANTKG NENANGAPAI TLLIREKNES NKSSFDKMIE AIKESKNGKK IGVFSKDKFP GEFMKSWNDC L NKEGFDKI ...String:
MHHHHHHAVT LDKDAYYRRV KRLYSNWRKG EDEYANVDAI VVSVGVDEEI VYAKSTALQT WLFGYELTDT IMVFCDDKII FMASKKKVE FLKQIANTKG NENANGAPAI TLLIREKNES NKSSFDKMIE AIKESKNGKK IGVFSKDKFP GEFMKSWNDC L NKEGFDKI DISAVVAYTI AVKEDGELNL MKKAASITSE VFNKFFKERV MEIVDADEKV RHSKLAESVE KAIEEKKYLA GA DPSTVEM CYPPIIQSGG NYNLKFSVVS DKNHMHFGAI TCAMGIRFKS YCSNLVRTLM VDPSQEVQEN YNFLLQLQEE LLK ELRHGV KICDVYNAVM DVVKKQKPEL LNKITKNLGF GMGIEFREGS LVINSKNQYK LKKGMVFSIN LGFSDLTNKE GKKP EEKTY ALFIGDTVLV DEDGPATVLT SVKKKVKNVG IFLKNEDEEE EEEEKDEAED LLGRGSRAAL LTERTRNEMT AEEKR RAHQ KELAAQLNEE AKRRLTEQKG EQQIQKARKS NVSYKNPSLM PKEPHIREMK IYIDKKYETV IMPVFGIATP FHIATI KNI SMSVEGDYTY LRINFYCPGS ALGRNEGNIF PNPEATFVKE ITYRASNIKA PGEQTVPALN LQNAFRIIKE VQKRYK (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)V KQDSLVINLN RSNPKLKDL YIRPNIAQKR MQGSLEAHVN GFRFTSVRGD KVDILYNNIK HALFQPCDGE MIIVLHFHLK NAIMFGKKRH TDVQFYTEVG EITTDLGKH QHMHDRDDLY AEQMEREMRH KLKTAFKNFI EKVEALTKEE LEFEVPFRDL GFNGAPYRST CLLQPTSSAL V NATEWPPF VVTLDEVELI HFERVQFHLK NFDMVIVYKD YSKKVTMINA IPVASLDPIK EWLNSCDLKY TEGVQSLNWT KI MKTIVDD PEGFFEQGGW SFL(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)

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Macromolecule #6: FACT complex subunit SSRP1

MacromoleculeName: FACT complex subunit SSRP1 / type: protein_or_peptide / ID: 6
Details: The poly-(UNK) was placed to show the electron density between 171-198. The full sequence for the experiment is: ...Details: The poly-(UNK) was placed to show the electron density between 171-198. The full sequence for the experiment is: MAETLEFNDVYQEVKGSMNDGRLRLSRQGIIFKNSKTGKVDNIQAGELTEGIWRRVALGHGLKLLTKNGHVYKYDGFRES EFEKLSDFFKTHYRLELMEKDLCVKGWNWGTVKFGGQLLSFDIGDQPVFEIPLSNVSQCTTGKNEVTLEFHQNDDAEVSL MEVRFYVPPTQEDGVDPVEAFAQNVLSKADVIQATGDAICIFRELQCLTPRGRYDIRIYPTFLHLHGKTFDYKIPYTTVL RLFLLPHKDQRQMFFVISLDPPIKQGQTRYHFLILLFSKDEDISLTLNMNEEEVEKRFEGRLTKNMSGSLYEMVSRVMKA LVNRKITVPGNFQGHSGAQCITCSYKASSGLLYPLERGFIYVHKPPVHIRFDEISFVNFARGTTTTRSFDFEIETKQGTQ YTFSSIEREEYGKLFDFVNAKKLNIKNRGLKEGMNPSYDEYADSDEDQHDAYLERMKEEGKIREENANDSSDDSGEETDE SFNPGEEEEDVAEEFDSNASASSSSNEGDSDRDEKKRKQLKKAKMAKDRKSRKKPVEVKKGKDPNAPKRPMSAYMLWLNA SREKIKSDHPGISITDLSKKAGEIWKGMSKEKKEEWDRKAEDARRDYEKAMKEYEGGRGESSKRDKSKKKKKVKVKMEKK STPSRGSSSKSSSRQLSESFKSKEFVSSDESSSGENKSKKKRRRSEDSEEEELASTPPSSEDSASGSDE
Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 73.361172 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MAETLEFNDV YQEVKGSMND GRLRLSRQGI IFKNSKTGKV DNIQAGELTE GIWRRVALGH GLKLLTKNGH VYKYDGFRES EFEKLSDFF KTHYRLELME KDLCVKGWNW GTVKFGGQLL SFDIGDQPVF EIPLSNVSQC TTGKNEVTLE FHQNDDAEVS L MEVRFYVP ...String:
MAETLEFNDV YQEVKGSMND GRLRLSRQGI IFKNSKTGKV DNIQAGELTE GIWRRVALGH GLKLLTKNGH VYKYDGFRES EFEKLSDFF KTHYRLELME KDLCVKGWNW GTVKFGGQLL SFDIGDQPVF EIPLSNVSQC TTGKNEVTLE FHQNDDAEVS L MEVRFYVP PTQ(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK) (UNK)(UNK)(UNK) (UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)(UNK)D AICIFRELQC LTPRGRYDI RIYPTFLHLH GKTFDYKIPY TTVLRLFLLP HKDQRQMFFV ISLDPPIKQG QTRYHFLILL FSKDEDISLT LNMNEEEVEK RFEGRLTKN MSGSLYEMVS RVMKALVNRK ITVPGNFQGH SGAQCITCSY KASSGLLYPL ERGFIYVHKP PVHIRFDEIS F VNFARGTT TTRSFDFEIE TKQGTQYTFS SIEREEYGKL FDFVNAKKLN IKNRGLKEGM NPSYDEYADS DEDQHDAYLE RM KEEGKIR EENANDSSDD SGEETDESFN PGEEEEDVAE EFDSNASASS SSNEGDSDRD EKKRKQLKKA KMAKDRKSRK KPV EVKKGK DPNAPKRPMS AYMLWLNASR EKIKSDHPGI SITDLSKKAG EIWKGMSKEK KEEWDRKAED ARRDYEKAMK EYEG GRGES SKRDKSKKKK KVKVKMEKK

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Macromolecule #7: DNA (79-mer)

MacromoleculeName: DNA (79-mer) / type: dna / ID: 7 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 24.144422 KDa
SequenceString: (DT)(DC)(DG)(DT)(DA)(DG)(DA)(DC)(DA)(DG) (DC)(DT)(DC)(DT)(DA)(DG)(DC)(DA)(DC)(DC) (DG)(DC)(DT)(DT)(DA)(DA)(DA)(DC)(DG) (DC)(DA)(DC)(DG)(DT)(DA)(DC)(DG)(DC)(DG) (DC) (DT)(DG)(DT)(DC)(DC)(DC) ...String:
(DT)(DC)(DG)(DT)(DA)(DG)(DA)(DC)(DA)(DG) (DC)(DT)(DC)(DT)(DA)(DG)(DC)(DA)(DC)(DC) (DG)(DC)(DT)(DT)(DA)(DA)(DA)(DC)(DG) (DC)(DA)(DC)(DG)(DT)(DA)(DC)(DG)(DC)(DG) (DC) (DT)(DG)(DT)(DC)(DC)(DC)(DC)(DC) (DG)(DC)(DG)(DT)(DT)(DT)(DT)(DA)(DA)(DC) (DC)(DG) (DC)(DC)(DA)(DA)(DG)(DG)(DG) (DG)(DA)(DT)(DT)(DA)(DC)(DT)(DC)(DC)(DC) (DT)(DA)

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Macromolecule #8: DNA (79-mer)

MacromoleculeName: DNA (79-mer) / type: dna / ID: 8 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: Escherichia coli (E. coli)
Molecular weightTheoretical: 24.58468 KDa
SequenceString: (DT)(DA)(DG)(DG)(DG)(DA)(DG)(DT)(DA)(DA) (DT)(DC)(DC)(DC)(DC)(DT)(DT)(DG)(DG)(DC) (DG)(DG)(DT)(DT)(DA)(DA)(DA)(DA)(DC) (DG)(DC)(DG)(DG)(DG)(DG)(DG)(DA)(DC)(DA) (DG) (DC)(DG)(DC)(DG)(DT)(DA) ...String:
(DT)(DA)(DG)(DG)(DG)(DA)(DG)(DT)(DA)(DA) (DT)(DC)(DC)(DC)(DC)(DT)(DT)(DG)(DG)(DC) (DG)(DG)(DT)(DT)(DA)(DA)(DA)(DA)(DC) (DG)(DC)(DG)(DG)(DG)(DG)(DG)(DA)(DC)(DA) (DG) (DC)(DG)(DC)(DG)(DT)(DA)(DC)(DG) (DT)(DG)(DC)(DG)(DT)(DT)(DT)(DA)(DA)(DG) (DC)(DG) (DG)(DT)(DG)(DC)(DT)(DA)(DG) (DA)(DG)(DC)(DT)(DG)(DT)(DC)(DT)(DA)(DC) (DG)(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

BufferpH: 7.5
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 7.8 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: NONE
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: ANGULAR RECONSTITUTION
Final reconstructionResolution.type: BY AUTHOR / Resolution: 4.9 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 16784
FSC plot (resolution estimation)

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