4KHA

Structural basis of histone H2A-H2B recognition by the essential chaperone FACT

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

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d4khab1	All alpha proteins	Histone-fold	Histone-fold	Nucleosome core histones	automated matches	clawed frog,common platanna,platanna (Xenopus laevis ) [TaxId: 8355 ],	SCOPe (2.08)
B	d4khab2	Artifacts	Tags	Tags	Tags	N-terminal Tags	clawed frog,common platanna,platanna (Xenopus laevis ) [TaxId: 8355 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Core histone-like	8041279	3001387	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Core histone-like	8067126	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	PF08512	e4khaA2	A: beta barrels	X: PH domain-like	H: PH domain-like (From Topology)	T: PH domain-like	F: PF08512	ECOD (1.6)
A	PF08644	e4khaA1	A: beta barrels	X: PH domain-like	H: PH domain-like (From Topology)	T: PH domain-like	F: PF08644	ECOD (1.6)
A	PF00125	e4khaA3	A: alpha arrays	X: Histone-like	H: Histone-related	T: Histone	F: PF00125	ECOD (1.6)
B	PF00125	e4khaB1	A: alpha arrays	X: Histone-like	H: Histone-related	T: Histone	F: PF00125	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.30.29.150	Mainly Beta	Roll	PH-domain like		CATH (4.3.0)
A	2.30.29.30	Mainly Beta	Roll	PH-domain like	Pleckstrin-homology domain (PH domain)/Phosphotyrosine-binding domain (PTB)	CATH (4.3.0)
A	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)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF08512	Histone chaperone Rttp106-like, middle domain (Rttp106-like_middle)	Histone chaperone Rttp106-like, middle domain	This Pleckstrin homology (PH) domain is found in the middle region of Rttp106, a histone chaperone involved in heterochromatin-mediated silencing [1]. It is also found in the final part of the middle domain of various FACT (facilitates chromatin tran ...	This Pleckstrin homology (PH) domain is found in the middle region of Rttp106, a histone chaperone involved in heterochromatin-mediated silencing [1]. It is also found in the final part of the middle domain of various FACT (facilitates chromatin transactions) complex subunits, such as Spt16 and either Pob3 (yeast) or the related SSRP1 (higher eukaryotes). This domain plays a role in DNA binding [2-4].	Domain
A	PF08644	FACT complex subunit (SPT16/CDC68) (SPT16)	FACT complex subunit (SPT16/CDC68)	Proteins in this family are subunits the FACT complex. The FACT complex plays a role in transcription initiation and promotes binding of TATA-binding protein (TBP) to a TATA box in chromatin [2].	Domain
A	PF00125	Core histone H2A/H2B/H3/H4 (Histone)	Core histone H2A/H2B/H3/H4	-	Domain
B	PF16211	C-terminus of histone H2A (Histone_H2A_C)	C-terminus of histone H2A	-	Family
B	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	Spt16M-Histone H2B 1.1 chimera	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 cation binding ion binding metal ion binding small molecule binding	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 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 cellular process DNA repair	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 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 transcription elongation factor complex membrane-enclosed lumen nuclear protein-containing complex intracellular organelle lumen FACT complex nucleoplasm organelle lumen nuclear lumen
B	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 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	IPR009072	Histone-fold	Homologous Superfamily
A	IPR007125	Histone H2A/H2B/H3	Domain
A	IPR000558	Histone H2B	Family
A	IPR033825	FACT complex subunit Spt16, peptidase M24-like domain	Domain
A	IPR048969	FACT complex subunit SPT16, C-terminal domain	Domain
A	IPR029149	Creatinase/Aminopeptidase P/Spt16, N-terminal	Homologous Superfamily
A	IPR011993	PH-like domain superfamily	Homologous Superfamily
A	IPR013719	Histone chaperone RTT106/FACT complex subunit SPT16-like, middle domain	Domain
A	IPR040258	FACT complex subunit Spt16	Family
A	IPR029148	FACT complex subunit Spt16, N-terminal lobe domain	Domain
A	IPR013953	FACT complex subunit Spt16 domain	Domain
A	IPR036005	Creatinase/aminopeptidase-like	Homologous Superfamily
A	IPR000994	Peptidase M24	Domain
B	IPR009072	Histone-fold	Homologous Superfamily
B	IPR007125	Histone H2A/H2B/H3	Domain
B	IPR002119	Histone H2A	Family
B	IPR032454	Histone H2A, C-terminal domain	Domain
B	IPR032458	Histone H2A conserved site	Conserved Site

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.