Annotations: 1KUT

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1kuta_	Alpha and beta proteins (a+b)	SAICAR synthase-like	SAICAR synthase-like	SAICAR synthase	SAICAR synthase	(Thermotoga maritima ) [TaxId: 2336 ],	SCOPe (2.08)
B	d1kutb_	Alpha and beta proteins (a+b)	SAICAR synthase-like	SAICAR synthase-like	SAICAR synthase	SAICAR synthase	(Thermotoga maritima ) [TaxId: 2336 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	SAICAR synthase-like	8040609	3000802	SCOP2B (2022-06-29)
B	SCOP2 Family	SAICAR synthase	8028230	4002084	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	SAICAR synthase-like	8040609	3000802	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	SAICAR_synt	e1kutA1	A: a+b complex topology	X: Protein kinase/SAICAR synthase/ATP-grasp (From Homology)	H: Protein kinase/SAICAR synthase/ATP-grasp	T: SAICAR synthase	F: SAICAR_synt	ECOD (1.6)
B	SAICAR_synt	e1kutB1	A: a+b complex topology	X: Protein kinase/SAICAR synthase/ATP-grasp (From Homology)	H: Protein kinase/SAICAR synthase/ATP-grasp	T: SAICAR synthase	F: SAICAR_synt	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.200.20	Alpha Beta	2-Layer Sandwich	Phosphorylase Kinase	domain 1	CATH (4.3.0)
A	3.30.470.20	Alpha Beta	2-Layer Sandwich	D-amino Acid Aminotransferase	Chain A, domain 1	CATH (4.3.0)
B	3.30.200.20	Alpha Beta	2-Layer Sandwich	Phosphorylase Kinase	domain 1	CATH (4.3.0)
B	3.30.470.20	Alpha Beta	2-Layer Sandwich	D-amino Acid Aminotransferase	Chain A, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01259	SAICAR synthetase (SAICAR_synt)	SAICAR synthetase	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Phosphoribosylaminoimidazole-succinocarboxamide synthase	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 acid-amino acid ligase activity phosphoribosylaminoimidazolesuccinocarboxamide synthase activity catalytic activity ligase activity, forming carbon-nitrogen bonds ligase activity	cobalamin metabolic process cobalamin biosynthetic process water-soluble vitamin biosynthetic process organonitrogen compound metabolic process tetrapyrrole metabolic process small molecule biosynthetic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process vitamin biosynthetic process vitamin metabolic process organic cyclic compound metabolic process organic substance metabolic process tetrapyrrole biosynthetic process biosynthetic process cobalamin metabolic process cobalamin biosynthetic process water-soluble vitamin biosynthetic process organonitrogen compound metabolic process tetrapyrrole metabolic process small molecule biosynthetic process cellular biosynthetic process cellular metabolic process organonitrogen compound biosynthetic process vitamin biosynthetic process vitamin metabolic process organic cyclic compound metabolic process organic substance metabolic process tetrapyrrole biosynthetic process biosynthetic process organic cyclic compound biosynthetic process organic substance biosynthetic process small molecule metabolic process metabolic process cellular process water-soluble vitamin metabolic process ribose phosphate metabolic process IMP metabolic process purine ribonucleoside monophosphate biosynthetic process nucleotide biosynthetic process carbohydrate derivative metabolic process purine ribonucleotide biosynthetic process nucleobase-containing compound metabolic process ribonucleotide biosynthetic process purine nucleoside monophosphate biosynthetic process purine ribonucleoside monophosphate metabolic process purine nucleotide metabolic process ribonucleotide metabolic process ribonucleoside monophosphate metabolic process nucleobase-containing small molecule metabolic process purine-containing compound biosynthetic process purine nucleoside monophosphate metabolic process phosphate-containing compound metabolic process phosphorus metabolic process ribose phosphate biosynthetic process nucleoside monophosphate metabolic process nucleoside phosphate metabolic process carbohydrate derivative biosynthetic process primary metabolic process nucleotide metabolic process nucleobase-containing compound biosynthetic process nucleoside monophosphate biosynthetic process purine-containing compound metabolic process IMP biosynthetic process organophosphate metabolic process organophosphate biosynthetic process nucleoside phosphate biosynthetic process 'de novo' IMP biosynthetic process purine ribonucleotide metabolic process ribonucleoside monophosphate biosynthetic process purine nucleotide biosynthetic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR028923	SAICAR synthetase/ADE2, N-terminal	Domain
A, B	IPR033934	Bacterial and archaeal 5-aminoimidazole-4-(N-succinylcarboxamide) ribonucleotide synthase	Family
A, B	IPR018236	SAICAR synthetase, 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.