1PFB

Structural Basis for specific binding of polycomb chromodomain to histone H3 methylated at K27

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Protein Modification Annotation

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1pfba_	All beta proteins	SH3-like barrel	Chromo domain-like	Chromo domain	Polycomb protein, Pc	fruit fly (Drosophila melanogaster ) [TaxId: 7227 ],	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	8026310	4000375	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Chromo domain-like	8038689	3000161	SCOP2 (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	e1pfbA1	A: beta barrels	X: SH3	H: Chromo domain-like (From Topology)	T: Chromo domain-like	F: Chromo	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00385	Chromo (CHRromatin Organisation MOdifier) domain (Chromo)	Chromo (CHRromatin Organisation MOdifier) domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Polycomb protein	chromatin binding binding sequence-specific DNA binding DNA binding organic cyclic compound binding nucleic acid binding methylated histone binding protein binding modification-dependent protein binding histone binding methylation-dependent protein binding	regulation of cellular process cellular biosynthetic process negative regulation of biological process RNA metabolic process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of cellular process cellular biosynthetic process negative regulation of biological process RNA metabolic process negative regulation of cellular metabolic process regulation of primary metabolic process negative regulation of RNA biosynthetic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process regulation of RNA metabolic process negative regulation of cellular process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of RNA biosynthetic process negative regulation of macromolecule metabolic process regulation of biosynthetic process negative regulation of DNA-templated transcription regulation of biological process cellular metabolic process negative regulation of metabolic process biological regulation primary metabolic process regulation of cellular metabolic process regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process negative regulation of cellular biosynthetic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process metabolic process cellular process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of DNA-templated transcription regulation of metabolic process negative regulation of RNA metabolic process developmental process neurogenesis multicellular organism development multicellular organismal process cellular developmental process cell differentiation anatomical structure development nervous system development system development cell development developmental maturation generation of neurons neuron differentiation neuron remodeling anatomical structure maturation neuron development neuron maturation cell maturation anterior/posterior axis specification anterior/posterior pattern specification pattern specification process regionalization axis specification syncytial blastoderm mitotic cell cycle embryo development mitotic cell cycle mitotic cell cycle, embryonic cell cycle cell cycle comprising mitosis without cytokinesis wound healing response to stimulus response to stress response to wounding cellular component organization chromatin organization chromatin remodeling cellular component organization or biogenesis heterochromatin formation epigenetic regulation of gene expression negative regulation of gene expression negative regulation of gene expression, epigenetic transcription by RNA polymerase II regulation of transcription by RNA polymerase II central nervous system development ventral cord development animal organ development negative regulation of transcription by RNA polymerase II blastoderm segmentation embryonic pattern specification specification of segmental identity, abdomen segmentation specification of segmental identity, trunk trunk segmentation segment specification negative regulation of response to stimulus negative regulation of response to gamma radiation response to ionizing radiation regulation of response to stimulus regulation of response to gamma radiation response to radiation response to abiotic stimulus response to gamma radiation	membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle membrane-bounded organelle intracellular anatomical structure nucleus membrane-enclosed lumen intracellular membrane-bounded organelle cellular anatomical entity nucleolus intracellular organelle lumen intracellular organelle organelle lumen organelle intracellular non-membrane-bounded organelle nuclear lumen non-membrane-bounded organelle polytene chromosome chromosome chromosomal region polytene chromosome band protein-containing complex PRC1 complex ubiquitin ligase complex catalytic complex nuclear protein-containing complex transferase complex PcG protein complex nuclear ubiquitin ligase complex intracellular protein-containing complex chromatin
B	Histone H3, embryonic	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 chromatin chromosome cellular anatomical entity intracellular organelle organelle intracellular non-membrane-bounded organelle non-membrane-bounded organelle membrane-bounded organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR023780	Chromo domain	Domain
A	IPR016197	Chromo-like domain superfamily	Homologous Superfamily
A	IPR033773	CBX family C-terminal motif	Conserved Site
A	IPR023779	Chromo domain, conserved site	Conserved Site
A	IPR000953	Chromo/chromo shadow domain	Domain
A	IPR017984	Chromo domain subgroup	Domain
A	IPR052458	Polycomb group PRC1-like complex component	Family
B	IPR009072	Histone-fold	Homologous Superfamily
B	IPR007125	Histone H2A/H2B/H3	Domain
B	IPR000164	Histone H3/CENP-A	Family

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
B	M3L	Parent Component: LYS RESID: AA0074 PSI-MOD : N6,N6,N6-trimethyl-L-lysine MOD:00083

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), 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 R01GM157729.