3TU4

Crystal structure of the Sir3 BAH domain in complex with a nucleosome core particle.

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Core histone-like	8041272	3001387	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Core histone-like	8041272	3001387	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Core histone-like	8042439	3001387	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Core histone-like	8042439	3001387	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Core histone-like	8041278	3001387	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	Core histone-like	8041278	3001387	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Core histone-like	8041279	3001387	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	Core histone-like	8041279	3001387	SCOP2B (2022-06-29)
K	SCOP2B Superfamily	BAH domain	8082082	3001462	SCOP2B (2022-06-29)
L	SCOP2B Superfamily	BAH domain	8082082	3001462	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Histone	e3tu4A1	A: alpha arrays	X: Histone-like	H: Histone-related	T: Histone	F: Histone	ECOD (1.6)
E	Histone	e3tu4E1	A: alpha arrays	X: Histone-like	H: Histone-related	T: Histone	F: Histone	ECOD (1.6)
B	Histone_1	e3tu4B1	A: alpha arrays	X: Histone-like	H: Histone-related	T: Histone	F: Histone_1	ECOD (1.6)
F	Histone_1	e3tu4F1	A: alpha arrays	X: Histone-like	H: Histone-related	T: Histone	F: Histone_1	ECOD (1.6)
C	Histone_1	e3tu4C1	A: alpha arrays	X: Histone-like	H: Histone-related	T: Histone	F: Histone_1	ECOD (1.6)
G	Histone_1	e3tu4G1	A: alpha arrays	X: Histone-like	H: Histone-related	T: Histone	F: Histone_1	ECOD (1.6)
D	Histone	e3tu4D1	A: alpha arrays	X: Histone-like	H: Histone-related	T: Histone	F: Histone	ECOD (1.6)
H	Histone	e3tu4H1	A: alpha arrays	X: Histone-like	H: Histone-related	T: Histone	F: Histone	ECOD (1.6)
K	BAH	e3tu4K1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: BAH	ECOD (1.6)
L	BAH	e3tu4L1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: BAH	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.20.10	Mainly Alpha	Orthogonal Bundle	Histone, subunit A	Histone, subunit A	CATH (4.3.0)
E	1.10.20.10	Mainly Alpha	Orthogonal Bundle	Histone, subunit A	Histone, subunit A	CATH (4.3.0)
B	1.10.20.10	Mainly Alpha	Orthogonal Bundle	Histone, subunit A	Histone, subunit A	CATH (4.3.0)
F	1.10.20.10	Mainly Alpha	Orthogonal Bundle	Histone, subunit A	Histone, subunit A	CATH (4.3.0)
C	1.10.20.10	Mainly Alpha	Orthogonal Bundle	Histone, subunit A	Histone, subunit A	CATH (4.3.0)
G	1.10.20.10	Mainly Alpha	Orthogonal Bundle	Histone, subunit A	Histone, subunit A	CATH (4.3.0)
D	1.10.20.10	Mainly Alpha	Orthogonal Bundle	Histone, subunit A	Histone, subunit A	CATH (4.3.0)
H	1.10.20.10	Mainly Alpha	Orthogonal Bundle	Histone, subunit A	Histone, subunit A	CATH (4.3.0)
K	2.30.30.490	Mainly Beta	Roll	SH3 type barrels.	Bromo adjacent homology (BAH) domain	CATH (4.3.0)
L	2.30.30.490	Mainly Beta	Roll	SH3 type barrels.	Bromo adjacent homology (BAH) domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B, F	PF15511	Centromere kinetochore component CENP-T histone fold (CENP-T_C)	Centromere kinetochore component CENP-T histone fold	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 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
C, G	PF16211	C-terminus of histone H2A (Histone_H2A_C)	C-terminus of histone H2A	-	Family
K, L	PF01426	BAH domain (BAH)	BAH domain	This domain has been called BAH (Bromo adjacent homology) domain and has also been called ELM1 and BAM (Bromo adjacent motif) domain. The function of this domain is unknown but may be involved in protein-protein interaction [3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, E	Histone H3.2	DNA binding binding organic cyclic compound binding nucleic acid binding protein heterodimerization activity protein binding protein dimerization activity structural molecule activity structural constituent of chromatin	-	protein-containing complex intracellular anatomical structure protein-DNA complex nucleosome intracellular membraneless organelle chromatin chromosome intracellular organelle cellular anatomical structure organelle membraneless organelle membrane-bounded organelle nucleus membrane-enclosed lumen protein-containing complex intracellular anatomical structure protein-DNA complex nucleosome intracellular membraneless organelle chromatin chromosome intracellular organelle cellular anatomical structure organelle membraneless organelle membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen
B, F	Histone H4	DNA binding binding organic cyclic compound binding nucleic acid binding protein heterodimerization activity protein binding protein dimerization activity structural molecule activity structural constituent of chromatin	protein-containing complex organization protein-DNA complex assembly cellular component organization protein-DNA complex organization cellular component biogenesis cellular component assembly chromatin organization protein-containing complex assembly chromatin remodeling cellular process cellular component organization or biogenesis nucleosome assembly nucleosome organization	protein-containing complex intracellular anatomical structure protein-DNA complex nucleosome intracellular membraneless organelle chromatin chromosome intracellular organelle cellular anatomical structure organelle membraneless organelle membrane-bounded organelle nucleus intracellular membrane-bounded organelle
C, G	Histone H2A	DNA binding binding organic cyclic compound binding nucleic acid binding protein heterodimerization activity protein binding protein dimerization activity structural molecule activity structural constituent of chromatin	-	protein-containing complex intracellular anatomical structure protein-DNA complex nucleosome intracellular membraneless organelle chromatin chromosome intracellular organelle cellular anatomical structure organelle membraneless organelle membrane-bounded organelle nucleus intracellular membrane-bounded organelle
D, H	Histone H2B 1.1	DNA binding binding organic cyclic compound binding nucleic acid binding protein heterodimerization activity protein binding protein dimerization activity structural molecule activity structural constituent of chromatin	-	protein-containing complex intracellular anatomical structure protein-DNA complex nucleosome intracellular membraneless organelle chromatin chromosome intracellular organelle cellular anatomical structure organelle membraneless organelle membrane-bounded organelle nucleus intracellular membrane-bounded organelle
I	DNA (146-MER)	-	-	-
J	DNA (146-MER)	-	-	-
K, L	Regulatory protein SIR3	DNA binding sequence-specific DNA binding sequence-specific double-stranded DNA binding double-stranded DNA binding binding organic cyclic compound binding nucleic acid binding DNA replication origin binding chromatin binding identical protein binding protein binding protein-containing complex binding nucleosome binding single-stranded DNA binding	regulation of cellular process catabolic process negative regulation of biological process RNA metabolic process macromolecule catabolic process nucleobase-containing compound metabolic process negative regulation of cellular process RNA catabolic process negative regulation of macromolecule metabolic process regulation of biosynthetic process mRNA catabolic process nuclear-transcribed mRNA catabolic process regulation of biological process negative regulation of metabolic process regulation of cellular process catabolic process negative regulation of biological process RNA metabolic process macromolecule catabolic process nucleobase-containing compound metabolic process negative regulation of cellular process RNA catabolic process negative regulation of macromolecule metabolic process regulation of biosynthetic process mRNA catabolic process nuclear-transcribed mRNA catabolic process regulation of biological process negative regulation of metabolic process biological regulation nuclear-transcribed mRNA catabolic process, non-stop decay primary metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process mRNA metabolic process nucleic acid metabolic process nucleobase-containing compound catabolic process regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process nucleic acid catabolic process regulation of macromolecule biosynthetic process metabolic process cellular process macromolecule metabolic process regulation of metabolic process localization telomere localization telomere tethering at nuclear periphery chromosome localization organelle localization cellular component organization chromatin organization chromatin remodeling cellular component organization or biogenesis heterochromatin formation epigenetic regulation of gene expression constitutive heterochromatin formation silent mating-type cassette heterochromatin formation negative regulation of gene expression, epigenetic cellular localization establishment of protein-containing complex localization to telomere cellular macromolecule localization macromolecule localization establishment of localization protein-containing complex localization subtelomeric heterochromatin formation telomere organization chromosome organization organelle organization regulation of primary metabolic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of DNA replication DNA metabolic process DNA replication negative regulation of DNA metabolic process regulation of DNA metabolic process regulation of DNA replication cellular response to stimulus double-strand break repair response to stimulus double-strand break repair via nonhomologous end joining cellular response to stress DNA damage response response to stress DNA repair	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membraneless organelle nucleolus intracellular organelle lumen organelle lumen membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle nucleus membrane-enclosed lumen intracellular membraneless organelle nucleolus intracellular organelle lumen organelle lumen membraneless organelle nuclear lumen protein-containing complex chromatin silencing complex nuclear protein-containing complex chromatin chromosome heterochromatin chromosome, telomeric region chromosomal region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, E	IPR009072	Histone-fold	Homologous Superfamily
A, E	IPR007125	Histone H2A/H2B/H3	Domain
A, E	IPR000164	Histone H3/CENP-A	Family
B, F	IPR009072	Histone-fold	Homologous Superfamily
B, F	IPR001951	Histone H4	Family
B, F	IPR035425	CENP-T/Histone H4, histone fold	Domain
B, F	IPR019809	Histone H4, conserved site	Conserved Site
B, F	IPR004823	TATA box binding protein associated factor (TAF), histone-like fold domain	Domain
C, G	IPR009072	Histone-fold	Homologous Superfamily
C, G	IPR007125	Histone H2A/H2B/H3	Domain
C, G	IPR002119	Histone H2A	Family
C, G	IPR032454	Histone H2A, C-terminal domain	Domain
C, G	IPR032458	Histone H2A conserved site	Conserved Site
D, H	IPR009072	Histone-fold	Homologous Superfamily
D, H	IPR007125	Histone H2A/H2B/H3	Domain
D, H	IPR000558	Histone H2B	Family
K, L	IPR041083	AAA lid domain	Domain
K, L	IPR001025	Bromo adjacent homology (BAH) domain	Domain
K, L	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
K, L	IPR043151	Bromo adjacent homology (BAH) domain superfamily	Homologous Superfamily
K, L	IPR050311	Origin Recognition Complex 1/Cell Division Control Protein 6	Family