Annotations: 4IO1

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Rib_5-P_isom_A_C	e4io1A3	A: a+b two layers	X: Alpha-beta plaits	H: D-ribose-5-phosphate isomerase (RpiA), lid domain (From Topology)	T: D-ribose-5-phosphate isomerase (RpiA), lid domain	F: Rib_5-P_isom_A_C	ECOD (1.6)
A	Rib_5-P_isom_A_N	e4io1A4	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NagB/RpiA/CoA transferase-like	F: Rib_5-P_isom_A_N	ECOD (1.6)
B	Rib_5-P_isom_A_C	e4io1B3	A: a+b two layers	X: Alpha-beta plaits	H: D-ribose-5-phosphate isomerase (RpiA), lid domain (From Topology)	T: D-ribose-5-phosphate isomerase (RpiA), lid domain	F: Rib_5-P_isom_A_C	ECOD (1.6)
B	Rib_5-P_isom_A_N	e4io1B4	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: NagB/RpiA/CoA transferase-like	F: Rib_5-P_isom_A_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.1360	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
A	3.30.70.260	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	ACT domain	CATH (4.3.0)
B	3.40.50.1360	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold		CATH (4.3.0)
B	3.30.70.260	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	ACT domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF06026	Ribose 5-phosphate isomerase A (phosphoriboisomerase A) (Rib_5-P_isom_A)	Ribose 5-phosphate isomerase A (phosphoriboisomerase A)	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Ribose-5-phosphate isomerase A	isomerase activity intramolecular oxidoreductase activity, interconverting aldoses and ketoses intramolecular oxidoreductase activity ribose-5-phosphate isomerase activity catalytic activity	ribose phosphate metabolic process carbohydrate derivative metabolic process glyceraldehyde-3-phosphate metabolic process glucose 6-phosphate metabolic process nucleobase-containing compound metabolic process organic substance metabolic process purine nucleotide metabolic process nucleobase-containing small molecule metabolic process cellular aldehyde metabolic process pentose-phosphate shunt phosphate-containing compound metabolic process pyridine-containing compound metabolic process small molecule metabolic process phosphorus metabolic process ribose phosphate metabolic process carbohydrate derivative metabolic process glyceraldehyde-3-phosphate metabolic process glucose 6-phosphate metabolic process nucleobase-containing compound metabolic process organic substance metabolic process purine nucleotide metabolic process nucleobase-containing small molecule metabolic process cellular aldehyde metabolic process pentose-phosphate shunt phosphate-containing compound metabolic process pyridine-containing compound metabolic process small molecule metabolic process phosphorus metabolic process pyridine nucleotide metabolic process nucleoside phosphate metabolic process nicotinamide nucleotide metabolic process organonitrogen compound metabolic process cellular metabolic process primary metabolic process generation of precursor metabolites and energy nucleotide metabolic process purine-containing compound metabolic process NADP metabolic process organic cyclic compound metabolic process NADPH regeneration organophosphate metabolic process metabolic process cellular process pentose-phosphate shunt, non-oxidative branch	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR037171	NagB/RpiA transferase-like	Homologous Superfamily
A, B	IPR020672	Ribose-5-phosphate isomerase, type A, subgroup	Family
A, B	IPR004788	Ribose 5-phosphate isomerase, type A	Family

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