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- EMDB-13473: Structure of the human CCAN deltaCT complex -

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ID or keywords:

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Basic information

Entry
Database: EMDB / ID: EMD-13473
TitleStructure of the human CCAN deltaCT complex
Map data3D consensus refinement
Sample
  • Complex: Human inner kinetochore CCAN
    • Protein or peptide: x 11 types
  • Ligand: x 1 types
KeywordsKinetochore / chromosome segregation / centromere / CELL CYCLE
Function / homology
Function and homology information


Mis6-Sim4 complex / positive regulation of protein localization to kinetochore / centromere complex assembly / kinetochore organization / metaphase chromosome alignment / kinetochore binding / sex differentiation / CENP-A containing chromatin assembly / chordate embryonic development / negative regulation of epithelial cell apoptotic process ...Mis6-Sim4 complex / positive regulation of protein localization to kinetochore / centromere complex assembly / kinetochore organization / metaphase chromosome alignment / kinetochore binding / sex differentiation / CENP-A containing chromatin assembly / chordate embryonic development / negative regulation of epithelial cell apoptotic process / kinetochore assembly / inner kinetochore / mitotic sister chromatid segregation / centriolar satellite / Amplification of signal from unattached kinetochores via a MAD2 inhibitory signal / Mitotic Prometaphase / EML4 and NUDC in mitotic spindle formation / Deposition of new CENPA-containing nucleosomes at the centromere / Resolution of Sister Chromatid Cohesion / NRIF signals cell death from the nucleus / mitotic spindle organization / positive regulation of epithelial cell proliferation / chromosome segregation / RHO GTPases Activate Formins / kinetochore / Separation of Sister Chromatids / actin cytoskeleton / chromosome / nuclear body / cell adhesion / cell division / regulation of DNA-templated transcription / nucleolus / apoptotic process / signal transduction / nucleoplasm / membrane / nucleus / cytosol / cytoplasm
Similarity search - Function
Centromere subunit L / Kinetochore complex Sim4 subunit Fta1 / Centromere protein R / Centromere protein Q / Centromere protein U / Centromere protein P / Kinetochore component, CENP-R / CENP-Q, a CENPA-CAD centromere complex subunit / CENP-A-nucleosome distal (CAD) centromere subunit, CENP-P / CENP-A nucleosome associated complex (NAC) subunit ...Centromere subunit L / Kinetochore complex Sim4 subunit Fta1 / Centromere protein R / Centromere protein Q / Centromere protein U / Centromere protein P / Kinetochore component, CENP-R / CENP-Q, a CENPA-CAD centromere complex subunit / CENP-A-nucleosome distal (CAD) centromere subunit, CENP-P / CENP-A nucleosome associated complex (NAC) subunit / Centromere protein H, C-terminal / Centromere protein Cenp-M / Centromere protein Cenp-K / Centromere protein H / Centromere protein H (CENP-H) / Centromere protein M (CENP-M) / Centromere-associated protein K / Centromere protein I / Mis6 / Centromere protein O / : / Cenp-O kinetochore centromere component / Centromere protein Chl4/mis15/CENP-N / Kinetochore protein CHL4 like / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Centromere protein R / Centromere protein P / Centromere protein U / Centromere protein Q / Centromere protein L / Centromere protein I / Centromere protein N / Centromere protein K / Centromere protein O / Centromere protein H / Centromere protein M
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsMuir KW / Yatskevich S / Bellini D / Barford D
Funding support Germany, 3 items
OrganizationGrant numberCountry
Cancer Research UK Germany
Medical Research Council (MRC, United Kingdom) Germany
Boehringer Ingelheim Fonds (BIF) Germany
CitationJournal: Science / Year: 2022
Title: Structure of the human inner kinetochore bound to a centromeric CENP-A nucleosome.
Authors: Stanislau Yatskevich / Kyle W Muir / Dom Bellini / Ziguo Zhang / Jing Yang / Thomas Tischer / Masa Predin / Tom Dendooven / Stephen H McLaughlin / David Barford /
Abstract: Kinetochores assemble onto specialized centromeric CENP-A (centromere protein A) nucleosomes (CENP-A) to mediate attachments between chromosomes and the mitotic spindle. We describe cryo-electron ...Kinetochores assemble onto specialized centromeric CENP-A (centromere protein A) nucleosomes (CENP-A) to mediate attachments between chromosomes and the mitotic spindle. We describe cryo-electron microscopy structures of the human inner kinetochore constitutive centromere associated network (CCAN) complex bound to CENP-A reconstituted onto α-satellite DNA. CCAN forms edge-on contacts with CENP-A, and a linker DNA segment of the α-satellite repeat emerges from the fully wrapped end of the nucleosome to thread through the central CENP-LN channel that tightly grips the DNA. The CENP-TWSX histone-fold module further augments DNA binding and partially wraps the linker DNA in a manner reminiscent of canonical nucleosomes. Our study suggests that the topological entrapment of the linker DNA by CCAN provides a robust mechanism by which kinetochores withstand both pushing and pulling forces exerted by the mitotic spindle.
History
DepositionAug 25, 2021-
Header (metadata) releaseApr 27, 2022-
Map releaseApr 27, 2022-
UpdateJul 17, 2024-
Current statusJul 17, 2024Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

Downloads & links

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Map

FileDownload / File: emd_13473.map.gz / Format: CCP4 / Size: 149.9 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotation3D consensus refinement
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.86 Å/pix.
x 340 pix.
= 292.4 Å
0.86 Å/pix.
x 340 pix.
= 292.4 Å
0.86 Å/pix.
x 340 pix.
= 292.4 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.86 Å
Density
Contour LevelBy AUTHOR: 0.006
Minimum - Maximum-0.02176657 - 0.05729146
Average (Standard dev.)0.00015962121 (±0.0012562328)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions340340340
Spacing340340340
CellA=B=C: 292.4 Å
α=β=γ: 90.0 °

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Supplemental data

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Additional map: HIKMLN body

Fileemd_13473_additional_1.map
AnnotationHIKMLN body
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

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Additional map: OPQURN body

Fileemd_13473_additional_2.map
AnnotationOPQURN body
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

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Additional map: OPQURN focused refinement

Fileemd_13473_additional_3.map
AnnotationOPQURN focused refinement
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

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Additional map: Combined focused map from PHENIX

Fileemd_13473_additional_4.map
AnnotationCombined focused map from PHENIX
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

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Sample components

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Entire : Human inner kinetochore CCAN

EntireName: Human inner kinetochore CCAN
Components
  • Complex: Human inner kinetochore CCAN
    • Protein or peptide: Centromere protein H
    • Protein or peptide: Centromere protein I
    • Protein or peptide: Centromere protein K
    • Protein or peptide: Centromere protein L
    • Protein or peptide: Centromere protein M
    • Protein or peptide: Centromere protein N
    • Protein or peptide: Centromere protein O
    • Protein or peptide: Centromere protein P
    • Protein or peptide: Centromere protein Q
    • Protein or peptide: Centromere protein U
    • Protein or peptide: Centromere protein R
  • Ligand: water

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Supramolecule #1: Human inner kinetochore CCAN

SupramoleculeName: Human inner kinetochore CCAN / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#11
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Centromere protein H

MacromoleculeName: Centromere protein H / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 28.520941 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MEEQPQMQDA DEPADSGGEG RAGGPPQVAG AQAACSEDRM TLLLRLRAQT KQQLLEYKSM VDASEEKTPE QIMQEKQIEA KIEDLENEI EEVKVAFEIK KLALDRMRLS TALKKNLEKI SRQSSVLMDN MKHLLELNKL IMKSQQESWD LEEKLLDIRK K RLQLKQAS ...String:
MEEQPQMQDA DEPADSGGEG RAGGPPQVAG AQAACSEDRM TLLLRLRAQT KQQLLEYKSM VDASEEKTPE QIMQEKQIEA KIEDLENEI EEVKVAFEIK KLALDRMRLS TALKKNLEKI SRQSSVLMDN MKHLLELNKL IMKSQQESWD LEEKLLDIRK K RLQLKQAS ESKLLEIQTE KNKQKIDLDS MENSERIKII RQNLQMEIKI TTVIQHVFQN LILGSKVNWA EDPALKEIVL QL EKNVDMM

UniProtKB: Centromere protein H

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Macromolecule #2: Centromere protein I

MacromoleculeName: Centromere protein I / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 86.820188 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MSPQKRVKNV QAQNRTSQGS SSFQTTLSAW KVKQDPSNSK NISKHGQNNP VGDYEHADDQ AEEDALQMAV GYFEKGPIKA SQNKDKTLE KHLKTVENVA WKNGLASEEI DILLNIALSG KFGNAVNTRI LKCMIPATVI SEDSVVKAVS WLCVGKCSGS T KVLFYRWL ...String:
MSPQKRVKNV QAQNRTSQGS SSFQTTLSAW KVKQDPSNSK NISKHGQNNP VGDYEHADDQ AEEDALQMAV GYFEKGPIKA SQNKDKTLE KHLKTVENVA WKNGLASEEI DILLNIALSG KFGNAVNTRI LKCMIPATVI SEDSVVKAVS WLCVGKCSGS T KVLFYRWL VAMFDFIDRK EQINLLYGFF FASLQDDALC PYVCHLLYLL TKKENVKPFR VRKLLDLQAK MGMQPHLQAL LS LYKFFAP ALISVSLPVR KKIYFKNSEN LWKTALLAVK QRNRGPSPEP LKLMLGPANV RPLKRKWNSL SVIPVLNSSS YTK ECGKKE MSLSDCLNRS GSFPLEQLQS FPQLLQNIHC LELPSQMGSV LNNSLLLHYI NCVRDEPVLL RFYYWLSQTL QEEC IWYKV NNYEHGKEFT NFLDTIIRAE CFLQEGFYSC EAFLYKSLPL WDGLCCRSQF LQLVSWIPFS SFSEVKPLLF DHLAQ LFFT STIYFKCSVL QSLKELLQNW LLWLSMDIHM KPVTNSPLET TLGGSMNSVS KLIHYVGWLS TTAMRLESNN TFLLHF ILD FYEKVCDIYI NYNLPLVVLF PPGIFYSALL SLDTSILNQL CFIMHRYRKN LTAAKKNELV QKTKSEFNFS SKTYQEF NH YLTSMVGCLW TSKPFGKGIY IDPEILEKTG VAEYKNSLNV VHHPSFLSYA VSFLLQESPE ERTVNVSSIR GKKWSWYL D YLFSQGLQGL KLFIRSSVHH SSIPRAEGIN CNNQY

UniProtKB: Centromere protein I

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Macromolecule #3: Centromere protein K

MacromoleculeName: Centromere protein K / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 31.69607 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MNQEDLDPDS TTDVGDVTNT EEELIRECEE MWKDMEECQN KLSLIGTETL TDSNAQLSLL IMQVKCLTAE LSQWQKKTPE TIPLTEDVL ITLGKEEFQK LRQDLEMVLS TKESKNEKLK EDLEREQRWL DEQQQIMESL NVLHSELKNK VETFSESRIF N ELKTKMLN ...String:
MNQEDLDPDS TTDVGDVTNT EEELIRECEE MWKDMEECQN KLSLIGTETL TDSNAQLSLL IMQVKCLTAE LSQWQKKTPE TIPLTEDVL ITLGKEEFQK LRQDLEMVLS TKESKNEKLK EDLEREQRWL DEQQQIMESL NVLHSELKNK VETFSESRIF N ELKTKMLN IKEYKEKLLS TLGEFLEDHF PLPDRSVKKK KKNIQESSVN LITLHEMLEI LINRLFDVPH DPYVKISDSF WP PYVELLL RNGIALRHPE DPTRIRLEAF HQ

UniProtKB: Centromere protein K

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Macromolecule #4: Centromere protein L

MacromoleculeName: Centromere protein L / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 39.039641 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MDSYSAPEST PSASSRPEDY FIGATPLQKR LESVRKQSSF ILTPPRRKIP QCSQLQEDVD PQKVAFLLHK QWTLYSLTPL YKFSYSNLK EYSRLLNAFI VAEKQKGLAV EVGEDFNIKV IFSTLLGMKG TQRDPEAFLV QIVSKSQLPS ENREGKVLWT G WFCCVFGD ...String:
MDSYSAPEST PSASSRPEDY FIGATPLQKR LESVRKQSSF ILTPPRRKIP QCSQLQEDVD PQKVAFLLHK QWTLYSLTPL YKFSYSNLK EYSRLLNAFI VAEKQKGLAV EVGEDFNIKV IFSTLLGMKG TQRDPEAFLV QIVSKSQLPS ENREGKVLWT G WFCCVFGD SLLETVSEDF TCLPLFLANG AESNTAIIGT WFQKTFDCYF SPLAINAFNL SWMAAMWTAC KMDHYVATTE FL WSVPCSP QSLDISFAIH PEDAKALWDS VHKTPGEVTQ EEVDLFMDCL YSHFHRHFKI HLSATRLVRV STSVASAHTD GKI KILCHK YLIGVLAYLT ELAIFQIE

UniProtKB: Centromere protein L

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Macromolecule #5: Centromere protein M

MacromoleculeName: Centromere protein M / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 19.761945 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString:
MSVLRPLDKL PGLNTATILL VGTEDALLQQ LADSMLKEDC ASELKVHLAK SLPLPSSVNR PRIDLIVFVV NLHSKYSLQN TEESLRHVD ASFFLGKVCF LATGAGRESH CSIHRHTVVK LAHTYQSPLL YCDLEVEGFR ATMAQRLVRV LQICAGHVPG V SALNLLSL LRSSEGPSLE DL

UniProtKB: Centromere protein M

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Macromolecule #6: Centromere protein N

MacromoleculeName: Centromere protein N / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 39.609551 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MDETVAEFIK RTILKIPMNE LTTILKAWDF LSENQLQTVN FRQRKESVVQ HLIHLCEEKR ASISDAALLD IIYMQFHQHQ KVWEVFQMS KGPGEDVDLF DMKQFKNSFK KILQRALKNV TVSFRETEEN AVWIRIAWGT QYTKPNQYKP TYVVYYSQTP Y AFTSSSML ...String:
MDETVAEFIK RTILKIPMNE LTTILKAWDF LSENQLQTVN FRQRKESVVQ HLIHLCEEKR ASISDAALLD IIYMQFHQHQ KVWEVFQMS KGPGEDVDLF DMKQFKNSFK KILQRALKNV TVSFRETEEN AVWIRIAWGT QYTKPNQYKP TYVVYYSQTP Y AFTSSSML RRNTPLLGQA LTIASKHHQI VKMDLRSRYL DSLKAIVFKQ YNQTFETHNS TTPLQERSLG LDINMDSRII HE NIVEKER VQRITQETFG DYPQPQLEFA QYKLETKFKS GLNGSILAER EEPLRCLIKF SSPHLLEALK SLAPAGIADA PLS PLLTCI PNKRMNYFKI RDK

UniProtKB: Centromere protein N

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Macromolecule #7: Centromere protein O

MacromoleculeName: Centromere protein O / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 33.830637 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MEQANPLRPD GESKGGVLAH LERLETQVSR SRKQSEELQS VQAQEGALGT KIHKLRRLRD ELRAVVRHRR ASVKACIANV EPNQTVEIN EQEALEEKLE NVKAILQAYH FTGLSGKLTS RGVCVCISTA FEGNLLDSYF VDLVIQKPLR IHHHSVPVFI P LEEIAAKY ...String:
MEQANPLRPD GESKGGVLAH LERLETQVSR SRKQSEELQS VQAQEGALGT KIHKLRRLRD ELRAVVRHRR ASVKACIANV EPNQTVEIN EQEALEEKLE NVKAILQAYH FTGLSGKLTS RGVCVCISTA FEGNLLDSYF VDLVIQKPLR IHHHSVPVFI P LEEIAAKY LQTNIQHFLF SLCEYLNAYS GRKYQADRLQ SDFAALLTGP LQRNPLCNLL SFTYKLDPGG QSFPFCARLL YK DLTATLP TDVTVTCQGV EVLSTSWEEQ RASHETLFCT KPLHQVFASF TRKGEKLDMS LVS

UniProtKB: Centromere protein O

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Macromolecule #8: Centromere protein P

MacromoleculeName: Centromere protein P / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 33.210949 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MDAELAEVRA LQAEIAALRR ACEDPPAPWE EKSRVQKSFQ AIHQFNLEGW KSSKDLKNQL GHLESELSFL STLTGINIRN HSKQTEDLT STEMTEKSIR KVLQRHRLSG NCHMVTFQLE FQILEIQNKE RLSSAVTDLN IIMEPTECSE LSEFVSRAEE R KDLFMFFR ...String:
MDAELAEVRA LQAEIAALRR ACEDPPAPWE EKSRVQKSFQ AIHQFNLEGW KSSKDLKNQL GHLESELSFL STLTGINIRN HSKQTEDLT STEMTEKSIR KVLQRHRLSG NCHMVTFQLE FQILEIQNKE RLSSAVTDLN IIMEPTECSE LSEFVSRAEE R KDLFMFFR SLHFFVEWFE YRKRTFKHLK EKYPDAVYLS EGPSSCSMGI RSASRPGFEL VIVWRIQIDE DGKVFPKLDL LT KVPQRAL ELDKNRAIET APLSFRTLVG LLGIEAALES LIKSLCAEEN N

UniProtKB: Centromere protein P

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Macromolecule #9: Centromere protein Q

MacromoleculeName: Centromere protein Q / type: protein_or_peptide / ID: 9 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 30.648375 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MSGKANASKK NAQQLKRNPK RKKDNEEVVL SENKVRNTVK KNKNHLKDLS SEGQTKHTNL KHGKTAASKR KTWQPLSKST RDHLQTMME SVIMTILSNS IKEKEEIQYH LNFLKKRLLQ QCETLKVPPK KMEDLTNVSS LLNMERARDK ANEEGLALLQ E EIDKMVET ...String:
MSGKANASKK NAQQLKRNPK RKKDNEEVVL SENKVRNTVK KNKNHLKDLS SEGQTKHTNL KHGKTAASKR KTWQPLSKST RDHLQTMME SVIMTILSNS IKEKEEIQYH LNFLKKRLLQ QCETLKVPPK KMEDLTNVSS LLNMERARDK ANEEGLALLQ E EIDKMVET TELMTGNIQS LKNKIQILAS EVEEEEERVK QMHQINSSGV LSLPELSQKT LKAPTLQKEI LALIPNQNAL LK DLDILHN SSQMKSMSTF IEEAYKKLDA S

UniProtKB: Centromere protein Q

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Macromolecule #10: Centromere protein U

MacromoleculeName: Centromere protein U / type: protein_or_peptide / ID: 10 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 47.609766 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: MAPRGRRRPR PHRSEGARRS KNTLERTHSM KDKAGQKCKP IDVFDFPDNS DVSSIGRLGE NEKDEETYET FDPPLHSTAI YADEEEFSK HCGLSLSSTP PGKEAKRSSD TSGNEASEIE SVKISAKKPG RKLRPISDDS ESIEESDTRR KVKSAEKIST Q RHEVIRTT ...String:
MAPRGRRRPR PHRSEGARRS KNTLERTHSM KDKAGQKCKP IDVFDFPDNS DVSSIGRLGE NEKDEETYET FDPPLHSTAI YADEEEFSK HCGLSLSSTP PGKEAKRSSD TSGNEASEIE SVKISAKKPG RKLRPISDDS ESIEESDTRR KVKSAEKIST Q RHEVIRTT ASSELSEKPA ESVTSKKTGP LSAQPSVEKE NLAIESQSKT QKKGKISHDK RKKSRSKAIG SDTSDIVHIW CP EGMKTSD IKELNIVLPE FEKTHLEHQQ RIESKVCKAA IATFYVNVKE QFIKMLKESQ MLTNLKRKNA KMISDIEKKR QRM IEVQDE LLRLEPQLKQ LQTKYDELKE RKSSLRNAAY FLSNLKQLYQ DYSDVQAQEP NVKETYDSSS LPALLFKART LLGA ESHLR NINHQLEKLL DQG

UniProtKB: Centromere protein U

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Macromolecule #11: Centromere protein R

MacromoleculeName: Centromere protein R / type: protein_or_peptide / ID: 11 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 20.228297 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString:
MPVKRSLKLD GLLEENSFDP SKITRKKSVI TYSPTTGTCQ MSLFASPTSS EEQKHRNGLS NEKRKKLNHP SLTESKESTT KDNDEFMML LSKVEKLSEE IMEIMQNLSS IQALEGSREL ENLIGISCAS HFLKREMQKT KELMTKVNKQ KLFEKSTGLP H KASRHLDS YEFLKAILN

UniProtKB: Centromere protein R

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Macromolecule #12: water

MacromoleculeName: water / type: ligand / ID: 12 / Number of copies: 1 / Formula: HOH
Molecular weightTheoretical: 18.015 Da
Chemical component information

ChemComp-HOH:
WATER

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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: 7.8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 3.0 µm / Nominal defocus min: 1.5 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: INSILICO MODEL
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 569755
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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