7X3T | pdb_00007x3t

Cryo-EM structure of ISW1a-dinucleosome

External Resource: Annotation


Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
S [auth R]SCOP2B SuperfamilyCore histone-like 8041279 3001387 SCOP2B (2022-06-29)
O [auth N]SCOP2B SuperfamilyCore histone-like 8041279 3001387 SCOP2B (2022-06-29)
HSCOP2B SuperfamilyCore histone-like 8041279 3001387 SCOP2B (2022-06-29)
DSCOP2B SuperfamilyCore histone-like 8041279 3001387 SCOP2B (2022-06-29)
R [auth Q]SCOP2B SuperfamilyCore histone-like 8041278 3001387 SCOP2B (2022-06-29)
N [auth M]SCOP2B SuperfamilyCore histone-like 8041278 3001387 SCOP2B (2022-06-29)
GSCOP2B SuperfamilyCore histone-like 8041278 3001387 SCOP2B (2022-06-29)
CSCOP2B SuperfamilyCore histone-like 8041278 3001387 SCOP2B (2022-06-29)
Q [auth P]SCOP2B SuperfamilyCore histone-like 8042439 3001387 SCOP2B (2022-06-29)
M [auth L]SCOP2B SuperfamilyCore histone-like 8042439 3001387 SCOP2B (2022-06-29)
FSCOP2B SuperfamilyCore histone-like 8042439 3001387 SCOP2B (2022-06-29)
BSCOP2B SuperfamilyCore histone-like 8042439 3001387 SCOP2B (2022-06-29)
P [auth O]SCOP2B SuperfamilyCore histone-like 8041272 3001387 SCOP2B (2022-06-29)
L [auth K]SCOP2B SuperfamilyCore histone-like 8041272 3001387 SCOP2B (2022-06-29)
ESCOP2B SuperfamilyCore histone-like 8041272 3001387 SCOP2B (2022-06-29)
ASCOP2B SuperfamilyCore histone-like 8041272 3001387 SCOP2B (2022-06-29)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
T [auth V]PF09111SLIDE (SLIDE)SLIDEThe SLIDE domain adopts a secondary structure comprising a main core of three alpha-helices. It has a role in DNA binding, contacting DNA target sites similar to c-Myb (Pfam:PF00249) repeats or homeodomains [1]. Domain
T [auth V]PF00271Helicase conserved C-terminal domain (Helicase_C)Helicase conserved C-terminal domainThe Prosite family is restricted to DEAD/H helicases, whereas this domain family is found in a wide variety of helicases and helicase related proteins. It may be that this is not an autonomously folding unit, but an integral part of the helicase. Domain
T [auth V]PF00176SNF2-related domain (SNF2-rel_dom)SNF2-related domainThis domain is found in proteins involved in a variety of processes including transcription regulation (e.g., SNF2, STH1, brahma, MOT1), DNA repair (e.g., ERCC6, RAD16, RAD5), DNA recombination (e.g., RAD54), and chromatin unwinding (e.g., ISWI) as w ...This domain is found in proteins involved in a variety of processes including transcription regulation (e.g., SNF2, STH1, brahma, MOT1), DNA repair (e.g., ERCC6, RAD16, RAD5), DNA recombination (e.g., RAD54), and chromatin unwinding (e.g., ISWI) as well as a variety of other proteins with little functional information (e.g., lodestar, ETL1)[1,2,3]. SNF2 functions as the ATPase component of the SNF2/SWI multisubunit complex, which utilises energy derived from ATP hydrolysis to disrupt histone-DNA interactions, resulting in the increased accessibility of DNA to transcription factors.
Domain
K [auth U]PF15612WSTF, HB1, Itc1p, MBD9 motif 1 (WHIM1)WSTF, HB1, Itc1p, MBD9 motif 1- Motif
C,
G,
N [auth M],
R [auth Q]		PF16211C-terminus of histone H2A (Histone_H2A_C)C-terminus of histone H2A- Family
B,
F,
M [auth L],
Q [auth P]		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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
T [auth V]ISWI chromatin-remodeling complex ATPase ISW1
K [auth U]ISWI one complex protein 3-
DNA(343-MER)---
DNA (343-MER)---
D,
H,
O [auth N],
S [auth R]		Histone H2B 1.1 -
C,
G,
N [auth M],
R [auth Q]		Histone H2A
B,
F,
M [auth L],
Q [auth P]		Histone H4
A,
E,
L [auth K],
P [auth O]		Histone H3 -

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
T [auth V]IPR000330SNF2, N-terminalDomain
T [auth V]IPR015195SLIDE domainDomain
T [auth V]IPR036306ISWI, HAND domain superfamilyHomologous Superfamily
T [auth V]IPR049730SNF2/RAD5-like, C-terminal helicase domainDomain
T [auth V]IPR015194ISWI, HAND domainDomain
T [auth V]IPR038718SNF2-like, N-terminal domain superfamilyHomologous Superfamily
T [auth V]IPR027417P-loop containing nucleoside triphosphate hydrolaseHomologous Superfamily
T [auth V]IPR009057Homedomain-like superfamilyHomologous Superfamily
T [auth V]IPR001650Helicase, C-terminal domain-likeDomain
T [auth V]IPR044754Isw1/2, N-terminalDomain
T [auth V]IPR014001Helicase superfamily 1/2, ATP-binding domainDomain
T [auth V]IPR017884SANT domainDomain
T [auth V]IPR001005SANT/Myb domainDomain
K [auth U]IPR028942WHIM1 domainDomain
D,
H,
O [auth N],
S [auth R]		IPR009072Histone-foldHomologous Superfamily
D,
H,
O [auth N],
S [auth R]		IPR007125Histone H2A/H2B/H3Domain
D,
H,
O [auth N],
S [auth R]		IPR055333Histone H2B, conserved siteConserved Site
D,
H,
O [auth N],
S [auth R]		IPR000558Histone H2BFamily
C,
G,
N [auth M],
R [auth Q]		IPR009072Histone-foldHomologous Superfamily
C,
G,
N [auth M],
R [auth Q]		IPR007125Histone H2A/H2B/H3Domain
C,
G,
N [auth M],
R [auth Q]		IPR002119Histone H2AFamily
C,
G,
N [auth M],
R [auth Q]		IPR032454Histone H2A, C-terminal domainDomain
C,
G,
N [auth M],
R [auth Q]		IPR032458Histone H2A conserved siteConserved Site
B,
F,
M [auth L],
Q [auth P]		IPR009072Histone-foldHomologous Superfamily
B,
F,
M [auth L],
Q [auth P]		IPR001951Histone H4Family
B,
F,
M [auth L],
Q [auth P]		IPR035425CENP-T/Histone H4, histone foldDomain
B,
F,
M [auth L],
Q [auth P]		IPR019809Histone H4, conserved siteConserved Site
B,
F,
M [auth L],
Q [auth P]		IPR004823TATA box binding protein associated factor (TAF), histone-like fold domainDomain
A,
E,
L [auth K],
P [auth O]		IPR009072Histone-foldHomologous Superfamily
A,
E,
L [auth K],
P [auth O]		IPR007125Histone H2A/H2B/H3Domain
A,
E,
L [auth K],
P [auth O]		IPR000164Histone H3/CENP-AFamily