Annotations: 5BT1

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
C	d5bt1c_	All alpha proteins	Histone-fold	Histone-fold	Nucleosome core histones	automated matches	Baker's yeast (Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)
D	d5bt1d_	All alpha proteins	Histone-fold	Histone-fold	Nucleosome core histones	automated matches	Baker's yeast (Saccharomyces cerevisiae S288C ) [TaxId: 559292 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	Core histone-like	8103853	3001387	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	TPR_11_6	e5bt1A1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: TPR_11_6	ECOD (1.6)
B	TPR_11_6	e5bt1B1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: TPR_11_6	ECOD (1.6)
C	Histone_1	e5bt1C1	A: alpha arrays	X: Histone-like	H: Histone-related	T: Histone	F: Histone_1	ECOD (1.6)
D	Histone	e5bt1D1	A: alpha arrays	X: Histone-like	H: Histone-related	T: Histone	F: Histone	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.25.40.10	Mainly Alpha	Alpha Horseshoe	Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat	Tetratricopeptide repeat domain	CATH (4.3.0)
B	1.25.40.10	Mainly Alpha	Alpha Horseshoe	Serine Threonine Protein Phosphatase 5, Tetratricopeptide repeat	Tetratricopeptide repeat domain	CATH (4.3.0)
C	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
C	PF16211	C-terminus of histone H2A (Histone_H2A_C)	C-terminus of histone H2A	-	Family
C	PF00125	Core histone H2A/H2B/H3/H4 (Histone)	Core histone H2A/H2B/H3/H4	-	Domain
D	PF00125	Core histone H2A/H2B/H3/H4 (Histone)	Core histone H2A/H2B/H3/H4	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	HAT1-interacting factor 1	protein binding binding histone binding identical protein binding protein homodimerization activity protein dimerization activity	protein-containing complex organization protein-DNA complex assembly protein-DNA complex organization cellular component 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 subtelomeric heterochromatin formation protein-containing complex organization protein-DNA complex assembly protein-DNA complex organization cellular component 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 subtelomeric heterochromatin formation regulation of cellular process cellular biosynthetic process negative regulation of biological process telomere organization negative regulation of cellular metabolic process organic substance metabolic process organic substance biosynthetic process negative regulation of cellular process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process heterochromatin formation epigenetic regulation of gene expression cellular metabolic process negative regulation of metabolic process biological regulation chromosome organization regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process negative regulation of cellular biosynthetic process regulation of cellular biosynthetic process regulation of gene expression organelle organization negative regulation of gene expression constitutive heterochromatin formation biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process negative regulation of gene expression, epigenetic regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process regulation of metabolic process	protein-containing complex intracellular anatomical structure catalytic complex protein-DNA complex chromatin chromosome transferase complex cellular anatomical entity histone acetyltransferase complex acetyltransferase complex intracellular organelle organelle intracellular non-membrane-bounded organelle protein acetyltransferase complex protein-containing complex intracellular anatomical structure catalytic complex protein-DNA complex chromatin chromosome transferase complex cellular anatomical entity histone acetyltransferase complex acetyltransferase complex intracellular organelle organelle intracellular non-membrane-bounded organelle protein acetyltransferase complex intracellular protein-containing complex non-membrane-bounded organelle chromosome, telomeric region chromosomal region membrane-bounded organelle nucleus intracellular membrane-bounded organelle
C	Histone H2A.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	cellular response to stimulus response to stimulus cellular metabolic process cellular nitrogen compound metabolic process primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process heterocycle metabolic process cellular response to stress DNA damage response response to stress cellular response to stimulus response to stimulus cellular metabolic process cellular nitrogen compound metabolic process primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process organic cyclic compound metabolic process organic substance metabolic process heterocycle metabolic process cellular response to stress DNA damage response response to stress nitrogen compound metabolic process metabolic process cellular process macromolecule metabolic process cellular aromatic compound metabolic process DNA repair regulation of cellular process negative regulation of biological process negative regulation of nitrogen compound metabolic process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process regulation of nitrogen compound metabolic process DNA-templated transcription regulation of RNA metabolic process transcription by RNA polymerase II organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of transcription by RNA polymerase II negative regulation of DNA-templated transcription regulation of biological process negative regulation of transcription by RNA polymerase II negative regulation of metabolic process regulation of cellular metabolic process negative regulation of cellular biosynthetic process regulation of gene expression biosynthetic process aromatic compound biosynthetic process negative regulation of macromolecule biosynthetic process organic cyclic compound biosynthetic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process cellular biosynthetic process RNA metabolic process RNA biosynthetic process nucleic acid biosynthetic process negative regulation of cellular process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process biological regulation regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process heterocycle biosynthetic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process negative regulation of biosynthetic process protein-DNA complex organization cellular component organization protein-containing complex organization chromatin organization cellular component organization or biogenesis	membrane-bounded organelle replication fork protection complex protein-containing complex intracellular anatomical structure nucleus membrane-enclosed lumen nuclear protein-containing complex nuclear replication fork nuclear chromosome chromosome intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle lumen intracellular organelle membrane-bounded organelle replication fork protection complex protein-containing complex intracellular anatomical structure nucleus membrane-enclosed lumen nuclear protein-containing complex nuclear replication fork nuclear chromosome chromosome intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle replication fork non-membrane-bounded organelle nuclear lumen protein-DNA complex nucleosome chromatin
D	Histone H2B.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	regulation of cellular process cellular biosynthetic process RNA metabolic process regulation of primary metabolic process regulation of nitrogen compound metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process organic substance metabolic process heterocycle metabolic process organic substance biosynthetic process nitrogen compound metabolic process regulation of cellular process cellular biosynthetic process RNA metabolic process regulation of primary metabolic process regulation of nitrogen compound metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process DNA-templated transcription regulation of RNA metabolic process organic substance metabolic process heterocycle metabolic process organic substance biosynthetic process nitrogen compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process regulation of biosynthetic process regulation of biological process cellular metabolic process biological regulation cellular nitrogen compound metabolic process primary metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process heterocycle biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process aromatic compound biosynthetic process organic cyclic compound biosynthetic process metabolic process cellular process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process cellular aromatic compound metabolic process negative regulation of biological process negative regulation of nitrogen compound metabolic process negative regulation of cellular metabolic process negative regulation of RNA biosynthetic process transcription by RNA polymerase II negative regulation of nucleobase-containing compound metabolic process regulation of transcription by RNA polymerase II negative regulation of DNA-templated transcription negative regulation of transcription by RNA polymerase II negative regulation of metabolic process negative regulation of cellular biosynthetic process negative regulation of macromolecule biosynthetic process negative regulation of RNA metabolic process negative regulation of cellular process negative regulation of macromolecule metabolic process negative regulation of biosynthetic process cellular response to stimulus postreplication repair response to stimulus DNA metabolic process cellular response to stress DNA damage response response to stress DNA repair protein-DNA complex organization cellular component organization protein-containing complex organization chromatin organization cellular component organization or biogenesis	membrane-bounded organelle replication fork protection complex protein-containing complex intracellular anatomical structure nucleus membrane-enclosed lumen nuclear protein-containing complex nuclear replication fork nuclear chromosome chromosome intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle lumen intracellular organelle membrane-bounded organelle replication fork protection complex protein-containing complex intracellular anatomical structure nucleus membrane-enclosed lumen nuclear protein-containing complex nuclear replication fork nuclear chromosome chromosome intracellular membrane-bounded organelle cellular anatomical entity intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle replication fork non-membrane-bounded organelle nuclear lumen protein-DNA complex nucleosome chromatin

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR011990	Tetratricopeptide-like helical domain superfamily	Homologous Superfamily
C	IPR009072	Histone-fold	Homologous Superfamily
C	IPR007125	Histone H2A/H2B/H3	Domain
C	IPR002119	Histone H2A	Family
C	IPR032454	Histone H2A, C-terminal domain	Domain
C	IPR032458	Histone H2A conserved site	Conserved Site
D	IPR009072	Histone-fold	Homologous Superfamily
D	IPR007125	Histone H2A/H2B/H3	Domain
D	IPR000558	Histone H2B	Family

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM133198.