Annotations: 3BIT

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF00557	e3bitA1	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: Creatinase/aminopeptidase (From Topology)	T: Creatinase/aminopeptidase	F: PF00557	ECOD (1.6)
A	PF14826	e3bitA2	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Creatinase/prolidase N-terminal domain (From Topology)	T: Creatinase/prolidase N-terminal domain	F: PF14826	ECOD (1.6)
B	PF00557	e3bitB1	A: a+b duplicates or obligate multimers	X: Creatinase/aminopeptidase-like	H: Creatinase/aminopeptidase (From Topology)	T: Creatinase/aminopeptidase	F: PF00557	ECOD (1.6)
B	PF14826	e3bitB2	A: mixed a+b and a/b	X: Ribonuclease H-like	H: Creatinase/prolidase N-terminal domain (From Topology)	T: Creatinase/prolidase N-terminal domain	F: PF14826	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.350.10	Alpha Beta	3-Layer(aba) Sandwich	Creatine Amidinohydrolase	Chain A, domain 1	CATH (4.3.0)
A	3.90.230.10	Alpha Beta	Alpha-Beta Complex	Creatine Amidinohydrolase	Creatinase/methionine aminopeptidase superfamily	CATH (4.3.0)
B	3.40.350.10	Alpha Beta	3-Layer(aba) Sandwich	Creatine Amidinohydrolase	Chain A, domain 1	CATH (4.3.0)
B	3.90.230.10	Alpha Beta	Alpha-Beta Complex	Creatine Amidinohydrolase	Creatinase/methionine aminopeptidase superfamily	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00557	Metallopeptidase family M24 (Peptidase_M24)	Metallopeptidase family M24	This family contains metallopeptidases. It also contains non-peptidase homologues such as the N terminal domain of Spt16 which is a histone H3-H4 binding module [3].	Domain
A, B	PF14826	FACT complex subunit SPT16 N-terminal lobe domain (FACT-Spt16_Nlob)	FACT complex subunit SPT16 N-terminal lobe domain	The FACT or facilitator of chromatin transcription complex binds to and alters the properties of nucleosomes. This family represents the N-terminal lobe of the NTD, or N-terminal domain, and acts as a protein-protein interaction domain presumably wit ...	The FACT or facilitator of chromatin transcription complex binds to and alters the properties of nucleosomes. This family represents the N-terminal lobe of the NTD, or N-terminal domain, and acts as a protein-protein interaction domain presumably with partners outside of the FACT complex [1]. Knockout of the whole NTD domain, 1-450 residues in UniProt:P32558, in yeast serves to tender the cells sensitive to DNA replication stress but is not lethal. The C-terminal half of NTD is structurally similar to aminopeptidases, and the most highly conserved surface residues line a cleft equivalent to the aminopeptidase substrate-binding site, family peptidase_M24, Pfam:PF00557 [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	FACT complex subunit SPT16	-	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 regulation of cellular process 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 regulation of cellular process positive regulation of macromolecule biosynthetic process regulation of primary metabolic process nucleobase-containing compound metabolic process DNA-templated transcription positive regulation of metabolic process regulation of DNA-templated transcription initiation regulation of RNA metabolic process transcription by RNA polymerase II organic substance biosynthetic process positive regulation of macromolecule metabolic process regulation of nucleobase-containing compound metabolic process transcription initiation at RNA polymerase II promoter regulation of transcription by RNA polymerase II regulation of biological process positive regulation of nucleobase-containing compound metabolic process cellular metabolic process primary metabolic process regulation of cellular metabolic process positive regulation of transcription by RNA polymerase II positive regulation of DNA-templated transcription initiation positive regulation of RNA metabolic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process organic cyclic compound biosynthetic process metabolic process regulation of macromolecule biosynthetic process regulation of DNA-templated transcription macromolecule metabolic process regulation of metabolic process cellular biosynthetic process positive regulation of DNA-templated transcription positive regulation of biological process RNA metabolic process positive regulation of cellular metabolic process RNA biosynthetic process nucleic acid biosynthetic process organic substance metabolic process positive regulation of biosynthetic process positive regulation of cellular process regulation of RNA biosynthetic process regulation of biosynthetic process positive regulation of transcription initiation by RNA polymerase II biological regulation regulation of macromolecule metabolic process nucleobase-containing compound biosynthetic process gene expression macromolecule biosynthetic process nucleic acid metabolic process DNA-templated transcription initiation regulation of cellular biosynthetic process positive regulation of RNA biosynthetic process regulation of transcription initiation by RNA polymerase II positive regulation of cellular biosynthetic process cellular response to stimulus response to stimulus DNA metabolic process cellular response to stress DNA damage response response to stress DNA repair DNA-templated DNA replication DNA replication transcription elongation by RNA polymerase II DNA-templated transcription elongation transcription preinitiation complex assembly RNA polymerase II preinitiation complex assembly regulation of RNA polymerase II transcription preinitiation complex assembly regulation of cellular component organization positive regulation of cellular component organization regulation of protein-containing complex assembly positive regulation of protein-containing complex assembly positive regulation of RNA polymerase II transcription preinitiation complex assembly positive regulation of cellular component biogenesis regulation of cellular component biogenesis regulation of chromatin organization regulation of cell cycle process chromosome organization sister chromatid cohesion regulation of chromosome organization regulation of organelle organization organelle organization regulation of sister chromatid cohesion cell cycle regulation of cell cycle cell cycle process	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 transcription elongation factor complex protein-DNA complex chromatin FACT complex nucleoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR033825	FACT complex subunit Spt16, peptidase M24-like domain	Domain
A, B	IPR048969	FACT complex subunit SPT16, C-terminal domain	Domain
A, B	IPR029149	Creatinase/Aminopeptidase P/Spt16, N-terminal	Homologous Superfamily
A, B	IPR011993	PH-like domain superfamily	Homologous Superfamily
A, B	IPR013719	Histone chaperone RTT106/FACT complex subunit SPT16-like, middle domain	Domain
A, B	IPR040258	FACT complex subunit Spt16	Family
A, B	IPR029148	FACT complex subunit Spt16, N-terminal lobe domain	Domain
A, B	IPR013953	FACT complex subunit Spt16 domain	Domain
A, B	IPR036005	Creatinase/aminopeptidase-like	Homologous Superfamily
A, B	IPR000994	Peptidase M24	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.