Annotations: 1S4Z

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1s4za1	All beta proteins	SH3-like barrel	Chromo domain-like	Chromo domain	Heterochromatin protein 1, HP1	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A	d1s4za2	Artifacts	Tags	Tags	Tags	N-terminal Tags	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B	d1s4zb1	All beta proteins	SH3-like barrel	Chromo domain-like	Chromo domain	Heterochromatin protein 1, HP1	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B	d1s4zb2	Artifacts	Tags	Tags	Tags	N-terminal Tags	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Chromo domain	8083619	4000375	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Chromo domain-like	8083620	3000161	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Chromo domain-like	8083620	3000161	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	Chromo_shadow	e1s4zA1	A: beta barrels	X: SH3	H: Chromo domain-like (From Topology)	T: Chromo domain-like	F: Chromo_shadow	ECOD (1.6)
B	Chromo_shadow	e1s4zB1	A: beta barrels	X: SH3	H: Chromo domain-like (From Topology)	T: Chromo domain-like	F: Chromo_shadow	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.50.40	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)		CATH (4.3.0)
B	2.40.50.40	Mainly Beta	Beta Barrel	OB fold (Dihydrolipoamide Acetyltransferase, E2P)		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01393	Chromo shadow domain (Chromo_shadow)	Chromo shadow domain	This domain is distantly related to Pfam:PF00385. This domain is always found in association with a chromo domain.	Domain
C	PF15557	CAF1 complex subunit p150, region binding to PCNA (CAF1-p150_N)	CAF1 complex subunit p150, region binding to PCNA	CAF1-p150_N is part of the N-terminus of the CAF1 complex p150 subunit that binds to PCNA - proliferating cell nuclear antigen. The PCNA mediates the connection between CAF-1 and the DNA replication fork. The CAF1 complex is essential in human cells ...	CAF1-p150_N is part of the N-terminus of the CAF1 complex p150 subunit that binds to PCNA - proliferating cell nuclear antigen. The PCNA mediates the connection between CAF-1 and the DNA replication fork. The CAF1 complex is essential in human cells for the de novo deposition of histones H3 and H4 at the DNA replication fork [1,2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Chromobox protein homolog 1	protein-containing complex binding chromatin binding binding DNA binding organic cyclic compound binding nucleic acid binding molecular adaptor activity histone methyltransferase binding protein binding enzyme binding methylated histone binding modification-dependent protein binding histone binding methylation-dependent protein binding protein-containing complex binding chromatin binding binding DNA binding organic cyclic compound binding nucleic acid binding molecular adaptor activity histone methyltransferase binding protein binding enzyme binding methylated histone binding modification-dependent protein binding histone binding methylation-dependent protein binding identical protein binding	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process regulation of cellular process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription regulation of RNA metabolic process organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process negative regulation of DNA-templated transcription regulation of biological process cellular metabolic process negative regulation of metabolic process primary metabolic process regulation of cellular metabolic process negative regulation of cellular biosynthetic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process negative regulation of macromolecule biosynthetic process organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic 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 organic substance metabolic 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 gene expression macromolecule biosynthetic process nucleic acid metabolic process regulation of cellular biosynthetic process negative regulation of biosynthetic process transcription by RNA polymerase II regulation of transcription by RNA polymerase II negative regulation of transcription by RNA polymerase II protein-DNA complex organization cellular component organization protein-containing complex organization chromatin organization cellular component organization or biogenesis	membrane-bounded organelle intracellular organelle intracellular anatomical structure organelle intracellular membrane-bounded organelle cellular anatomical entity intracellular non-membrane-bounded organelle chromosome, centromeric region chromosome chromosomal region non-membrane-bounded organelle nucleus membrane-enclosed lumen intracellular organelle lumen membrane-bounded organelle intracellular organelle intracellular anatomical structure organelle intracellular membrane-bounded organelle cellular anatomical entity intracellular non-membrane-bounded organelle chromosome, centromeric region chromosome chromosomal region non-membrane-bounded organelle nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen protein-containing complex protein-DNA complex chromatin pericentric heterochromatin heterochromatin pronucleus male pronucleus female pronucleus chromocenter cytoskeleton spindle microtubule cytoskeleton nuclear body chromosome, telomeric region site of DNA damage
C	Chromatin assembly factor 1 subunit A	protein binding binding chromo shadow domain binding protein domain specific binding identical protein binding	cellular process cell cycle 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 component organization or biogenesis nucleosome assembly nucleosome organization cellular process cell cycle 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 component organization or biogenesis nucleosome assembly nucleosome organization nucleobase-containing compound metabolic process organic cyclic compound metabolic process DNA replication organic substance metabolic process metabolic process primary metabolic process DNA metabolic process macromolecule metabolic process nucleic acid metabolic process cellular response to stimulus response to stimulus cellular response to stress DNA damage response response to stress DNA repair DNA replication-dependent chromatin assembly	protein-containing complex CAF-1 complex intracellular organelle intracellular anatomical structure protein-DNA complex organelle intracellular non-membrane-bounded organelle chromatin chromosome cellular anatomical entity non-membrane-bounded organelle membrane-bounded organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR023780	Chromo domain	Domain
A, B	IPR016197	Chromo-like domain superfamily	Homologous Superfamily
A, B	IPR023779	Chromo domain, conserved site	Conserved Site
A, B	IPR008251	Chromo shadow domain	Domain
A, B	IPR000953	Chromo/chromo shadow domain	Domain
A, B	IPR017984	Chromo domain subgroup	Domain
C	IPR029091	Chromatin assembly factor 1 subunit p150, N-terminal	Domain
C	IPR022043	Chromatin assembly factor 1 subunit A	Family
C	IPR029105	Chromatin assembly factor 1 subunit p150, C-terminal	Domain

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.