Annotations: 8ACU

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
C [auth E]	SCOP2B Superfamily	CBS-domain pair	8032486	3000123	SCOP2B (2022-06-29)
D [auth F]	SCOP2B Superfamily	CBS-domain pair	8032486	3000123	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)
B	PF13328	e8acuB1	A: alpha complex topology	X: PDEase-like	H: HD-domain/PDEase-like (From Topology)	T: HD-domain/PDEase-like	F: PF13328	ECOD (1.6)
B	PF04607	e8acuB2	A: a+b three layers	X: Nucleotidyltransferase-like	H: Nucleotidyltransferase (From Topology)	T: Nucleotidyltransferase	F: PF04607	ECOD (1.6)
C [auth E]	F_UNCLASSIFIED	e8acuE1	A: a+b duplicates or obligate multimers	X: CBS-domain (From Topology)	H: CBS-domain (From Topology)	T: CBS-domain	F: F_UNCLASSIFIED	ECOD (1.6)
D [auth F]	F_UNCLASSIFIED	e8acuF1	A: a+b duplicates or obligate multimers	X: CBS-domain (From Topology)	H: CBS-domain (From Topology)	T: CBS-domain	F: F_UNCLASSIFIED	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF04607	Region found in RelA / SpoT proteins (RelA_SpoT)	Region found in RelA / SpoT proteins	-	Family
A, B	PF01966	HD domain (HD)	HD domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	GTP pyrophosphokinase	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding kinase activity transferase activity catalytic activity transferase activity, transferring phosphorus-containing groups GTP diphosphokinase activity diphosphotransferase activity guanyl nucleotide binding GTP binding guanyl ribonucleotide binding	ribose phosphate metabolic process nucleoside bisphosphate metabolic process purine nucleoside bisphosphate metabolic process ribonucleoside bisphosphate biosynthetic process ribonucleoside bisphosphate metabolic process guanosine tetraphosphate biosynthetic process nucleotide biosynthetic process organonitrogen compound biosynthetic process carbohydrate derivative metabolic process purine ribonucleotide biosynthetic process purine ribonucleoside bisphosphate metabolic process purine ribonucleoside bisphosphate biosynthetic process nucleobase-containing compound metabolic process ribonucleotide biosynthetic process purine nucleotide metabolic process ribose phosphate metabolic process nucleoside bisphosphate metabolic process purine nucleoside bisphosphate metabolic process ribonucleoside bisphosphate biosynthetic process ribonucleoside bisphosphate metabolic process guanosine tetraphosphate biosynthetic process nucleotide biosynthetic process organonitrogen compound biosynthetic process carbohydrate derivative metabolic process purine ribonucleotide biosynthetic process purine ribonucleoside bisphosphate metabolic process purine ribonucleoside bisphosphate biosynthetic process nucleobase-containing compound metabolic process ribonucleotide biosynthetic process purine nucleotide metabolic process organic substance metabolic process guanosine tetraphosphate metabolic process ribonucleotide metabolic process nucleobase-containing small molecule metabolic process purine-containing compound biosynthetic process phosphate-containing compound metabolic process organic substance biosynthetic process small molecule metabolic process purine nucleoside bisphosphate biosynthetic process phosphorus metabolic process ribose phosphate biosynthetic process nucleoside phosphate metabolic process carbohydrate derivative biosynthetic process organonitrogen compound metabolic process cellular metabolic process nucleoside bisphosphate biosynthetic process primary metabolic process nucleotide metabolic process nucleobase-containing compound biosynthetic process purine-containing compound metabolic process organic cyclic compound metabolic process biosynthetic process organophosphate metabolic process organophosphate biosynthetic process organic cyclic compound biosynthetic process nucleoside phosphate biosynthetic process metabolic process cellular process purine ribonucleotide metabolic process purine nucleotide biosynthetic process phosphorylation	-
C [auth E], D [auth F]	CBS domain-containing protein	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR003607	HD/PDEase domain	Domain
A, B	IPR012676	TGS-like	Homologous Superfamily
A, B	IPR004095	TGS	Domain
A, B	IPR045865	ACT-like domain	Homologous Superfamily
A, B	IPR002912	ACT domain	Domain
A, B	IPR033655	RelA/SpoT, TGS domain	Domain
A, B	IPR004811	RelA/SpoT family	Family
A, B	IPR043519	Nucleotidyltransferase superfamily	Homologous Superfamily
A, B	IPR007685	RelA/SpoT	Domain
A, B	IPR012675	Beta-grasp domain superfamily	Homologous Superfamily
A, B	IPR045600	RelA/SpoT, AH and RIS domains	Domain
A, B	IPR006674	HD domain	Domain
C [auth E], D [auth F]	IPR046342	CBS domain superfamily	Homologous Superfamily
C [auth E], D [auth F]	IPR048125	Cyclic-di-AMP-binding protein CbpB	Family

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 R01GM133198.