28OP | pdb_000028op

Structure of the human inner kinetochore CCAN and CENP-C bound to DNA


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
B [auth S]SCOP2B SuperfamilyCore histone-like 8058042 3001387 SCOP2B (2022-06-29)
G [auth X]SCOP2B SuperfamilyCore histone-like 8053222 3001387 SCOP2B (2022-06-29)
A [auth M]SCOP2B SuperfamilyRas-like P-loop GTPases 8092489 3002022 SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
B [auth S]PF15630CENP-S protein (CENP-S)CENP-S proteinCENP-S is a family of vertebral and fungal kinetochore component proteins. CENP-S complexes with CENP-X to form a stable CENP-T-W-S-X heterotetramer. Domain
I [auth H]PF05837Centromere protein H (CENP-H) (CENP-H)Centromere protein H (CENP-H)This family consists of several eukaryotic centromere protein H (CENP-H) sequences. Macromolecular centromere-kinetochore complex plays a critical role in sister chromatid separation, but its complete protein composition as well as its precise dynami ...This family consists of several eukaryotic centromere protein H (CENP-H) sequences. Macromolecular centromere-kinetochore complex plays a critical role in sister chromatid separation, but its complete protein composition as well as its precise dynamic function during mitosis has not yet been clearly determined. CENP-H contains a coiled-coil structure and a nuclear localisation signal. CENP-H is specifically and constitutively localised in kinetochores throughout the cell cycle. CENP-H may play a role in kinetochore organisation and function throughout the cell cycle [1]. This the C-terminus of the region, which is conserved from fungi to humans.
Domain
G [auth X]PF09415CENP-S associating Centromere protein X (CENP-X)CENP-S associating Centromere protein XThe centromere, essential for faithful chromosome segregation during mitosis, has a network of constitutive centromere-associated (CCAN) proteins associating with it during mitosis. So far in vertebrates at least 15 centromere proteins have been iden ...The centromere, essential for faithful chromosome segregation during mitosis, has a network of constitutive centromere-associated (CCAN) proteins associating with it during mitosis. So far in vertebrates at least 15 centromere proteins have been identified, which are divided into several subclasses based on functional and biochemical analyses. These provide a platform for the formation of a functional kinetochore during mitosis. CENP-S is one that does not associate with the CENP-H-containing complex but rather interacts with CENP-X to form a stable assembly of outer kinetochore proteins that functions downstream of other components of the CCAN. This complex may directly allow efficient and stable formation of the outer kinetochore on the CCAN platform.
Domain
C [auth T]PF15511Centromere kinetochore component CENP-T histone fold (CENP-T_C)Centromere kinetochore component CENP-T histone foldCENP-T is a family of vertebral kinetochore proteins that associates directly with CENP-W. The N-terminus of CENP-T proteins interacts directly with the Ndc80 complex in the outer kinetochore. Importantly, the CENP-T-W complex does not directly asso ...CENP-T is a family of vertebral kinetochore proteins that associates directly with CENP-W. The N-terminus of CENP-T proteins interacts directly with the Ndc80 complex in the outer kinetochore. Importantly, the CENP-T-W complex does not directly associate with CENP-A, but with histone H3 in the centromere region. CENP-T and -W form a hetero-tetramer with CENP-S and -X and bind to a ~100 bp region of nucleosome-free DNA forming a nucleosome-like structure. The DNA-CENP-T-W-S-X complex is likely to be associated with histone H3-containing nucleosomes rather than with CENP-nucleosomes. This domain is the C-terminal histone fold domain of CENP-T, which associates with chromatin [2-3].
Domain
P [auth Q]PF13094CENP-Q, a CENPA-CAD centromere complex subunit (CENP-Q)CENP-Q, a CENPA-CAD centromere complex subunit- Family
O [auth P]PF13096CENP-A-nucleosome distal (CAD) centromere subunit, CENP-P (CENP-P)CENP-A-nucleosome distal (CAD) centromere subunit, CENP-P- Family
N [auth O]PF09496Cenp-O kinetochore centromere component (CENP-O)Cenp-O kinetochore centromere component- Family
M [auth N]PF05238Centromere protein Chl4/mis15/CENP-N (CENP-N)Centromere protein Chl4/mis15/CENP-N- Family
PF13092Centromere protein L (CENP-L)Centromere protein L- Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
B [auth S]Centromere protein S
E [auth V]DNA (59-MER)---
I [auth H]Centromere protein H
H [auth Y]DNA (61-MER)---
G [auth X]Centromere protein X
F [auth W]Centromere protein W
D [auth U]Centromere protein U-
C [auth T]Methylated-DNA--protein-cysteine methyltransferase,Centromere protein T
R [auth C]Centromere protein C,Methylated-DNA--protein-cysteine methyltransferase
Q [auth R]Centromere protein R-
P [auth Q]Centromere protein Q-
O [auth P]Centromere protein P-
N [auth O]Centromere protein O-
M [auth N]Centromere protein N-
Centromere protein L-
Centromere protein K-
J [auth I]Centromere protein I-
A [auth M]Centromere protein M-

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
B [auth S]IPR009072Histone-foldHomologous Superfamily
B [auth S]IPR029003CENP-S/Mhf1Family
I [auth H]IPR040034Centromere protein HFamily
I [auth H]IPR008426Centromere protein H, C-terminalDomain
G [auth X]IPR018552Centromere protein XFamily
F [auth W]IPR028847Centromere protein WFamily
F [auth W]IPR009072Histone-foldHomologous Superfamily
F [auth W]IPR052484Centromere Protein W/WIP1Family
D [auth U]IPR025214Centromere protein UFamily
C [auth T]IPR008332Methylguanine DNA methyltransferase, ribonuclease-like domainDomain
C [auth T]IPR036217Methylated DNA-protein cysteine methyltransferase, DNA binding domainHomologous Superfamily
C [auth T]IPR036388Winged helix-like DNA-binding domain superfamilyHomologous Superfamily
C [auth T]IPR036631Methylated DNA-protein cysteine methyltransferase domain superfamilyHomologous Superfamily
C [auth T]IPR014048Methylated-DNA-[protein]-cysteine S-methyltransferase, DNA bindingDomain
C [auth T]IPR001497Methylated-DNA-[protein]-cysteine S-methyltransferase, active siteActive Site
C [auth T]IPR009072Histone-foldHomologous Superfamily
C [auth T]IPR032373Centromere kinetochore component CENP-T, N-terminal domainDomain
C [auth T]IPR028255Centromere protein TFamily
C [auth T]IPR035425CENP-T/Histone H4, histone foldDomain
R [auth C]IPR008332Methylguanine DNA methyltransferase, ribonuclease-like domainDomain
R [auth C]IPR036217Methylated DNA-protein cysteine methyltransferase, DNA binding domainHomologous Superfamily
R [auth C]IPR036388Winged helix-like DNA-binding domain superfamilyHomologous Superfamily
R [auth C]IPR036631Methylated DNA-protein cysteine methyltransferase domain superfamilyHomologous Superfamily
R [auth C]IPR014048Methylated-DNA-[protein]-cysteine S-methyltransferase, DNA bindingDomain
R [auth C]IPR001497Methylated-DNA-[protein]-cysteine S-methyltransferase, active siteActive Site
R [auth C]IPR028052Kinetochore assembly subunit CENP-C, N-terminal domainDomain
R [auth C]IPR025974Mif2/CENP-C cupin domainDomain
R [auth C]IPR028386Centromere protein C/Mif2/cnp3Family
R [auth C]IPR028931CENP-C, middle DNMT3B-binding domainDomain
R [auth C]IPR014710RmlC-like jelly roll foldHomologous Superfamily
R [auth C]IPR011051RmlC-like cupin domain superfamilyHomologous Superfamily
Q [auth R]IPR009601Centromere protein RFamily
P [auth Q]IPR025212Centromere protein QFamily
O [auth P]IPR027801Centromere protein PFamily
N [auth O]IPR018464Centromere protein OFamily
M [auth N]IPR052011Centromere-associated NAC/CAD complex proteinFamily
M [auth N]IPR007902Centromere protein Chl4/mis15/CENP-NFamily
IPR025204Centromere subunit LFamily
IPR020993Centromere protein Cenp-KFamily
J [auth I]IPR012485Centromere protein IFamily
A [auth M]IPR020987Centromere protein Cenp-MFamily
A [auth M]IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
B [auth S]Q8N2Z9
I [auth H]Q9H3R5
G [auth X]A8MT69
F [auth W]Q5EE01
D [auth U]Q71F23
C [auth T]Q96BT3
R [auth C]Q03188
Q [auth R]Q13352
P [auth Q]Q7L2Z9
O [auth P]Q6IPU0
N [auth O]Q9BU64
M [auth N]Q96H22
Q8N0S6
Q9BS16
J [auth I]Q92674
A [auth M]Q9NSP4