Annotations: 1RPX

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d1rpxb_	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Ribulose-phoshate binding barrel	D-ribulose-5-phosphate 3-epimerase	D-ribulose-5-phosphate 3-epimerase	potato (Solanum tuberosum ) [TaxId: 4113 ],	SCOPe (2.08)
A	d1rpxa_	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Ribulose-phoshate binding barrel	D-ribulose-5-phosphate 3-epimerase	D-ribulose-5-phosphate 3-epimerase	potato (Solanum tuberosum ) [TaxId: 4113 ],	SCOPe (2.08)
C	d1rpxc_	Alpha and beta proteins (a/b)	TIM beta/alpha-barrel	Ribulose-phoshate binding barrel	D-ribulose-5-phosphate 3-epimerase	D-ribulose-5-phosphate 3-epimerase	potato (Solanum tuberosum ) [TaxId: 4113 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	Ribulose-phoshate binding barrel	8043237	3000216	SCOP2B (2022-06-29)
A	SCOP2 Family	D-ribulose-5-phosphate 3-epimerase	8030858	4003059	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Ribulose-phoshate binding barrel	8043237	3000216	SCOP2 (2022-06-29)
C	SCOP2B Superfamily	Ribulose-phoshate binding barrel	8043237	3000216	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	PF00834	e1rpxB1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: PF00834	ECOD (1.6)
A	PF00834	e1rpxA1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: PF00834	ECOD (1.6)
C	PF00834	e1rpxC1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: PF00834	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.20.20.70	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Aldolase class I	CATH (4.3.0)
A	3.20.20.70	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Aldolase class I	CATH (4.3.0)
C	3.20.20.70	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Aldolase class I	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF00834	Ribulose-phosphate 3 epimerase family (Ribul_P_3_epim)	Ribulose-phosphate 3 epimerase family	This enzyme catalyses the conversion of D-ribulose 5-phosphate into D-xylulose 5-phosphate.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	PROTEIN (RIBULOSE-PHOSPHATE 3-EPIMERASE)	isomerase activity racemase and epimerase activity D-ribulose-phosphate 3-epimerase activity racemase and epimerase activity, acting on carbohydrates and derivatives catalytic activity cation binding ion binding binding metal ion binding small molecule binding	response to stimulus response to stress response to abiotic stimulus response to cold response to temperature stimulus carbohydrate metabolic process photosynthesis carbohydrate biosynthetic process cellular metabolic process photosynthesis, dark reaction primary metabolic process organic substance metabolic process biosynthetic process reductive pentose-phosphate cycle response to stimulus response to stress response to abiotic stimulus response to cold response to temperature stimulus carbohydrate metabolic process photosynthesis carbohydrate biosynthetic process cellular metabolic process photosynthesis, dark reaction primary metabolic process organic substance metabolic process biosynthetic process reductive pentose-phosphate cycle organic substance biosynthetic process metabolic process cellular process carbon fixation biological process involved in interspecies interaction between organisms response to other organism response to external stimulus response to external biotic stimulus response to nematode response to biotic stimulus ribose phosphate metabolic process carbohydrate derivative metabolic process glyceraldehyde-3-phosphate metabolic process glucose 6-phosphate metabolic process nucleobase-containing compound 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 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 pentose-phosphate shunt, non-oxidative branch	chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope bounding membrane of organelle thylakoid plastid envelope chloroplast chloroplast thylakoid membrane membrane-bounded organelle plastid membrane intracellular anatomical structure plastid organelle outer membrane plastid thylakoid membrane plastid thylakoid intracellular organelle organelle envelope bounding membrane of organelle thylakoid plastid envelope chloroplast non-membrane-bounded organelle membrane cellular anatomical entity intracellular membrane-bounded organelle thylakoid membrane organelle chloroplast thylakoid intracellular non-membrane-bounded organelle outer membrane cytoplasm photosynthetic membrane organelle membrane cytosol stromule

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR000056	Ribulose-phosphate 3-epimerase-like	Family
A, B, C	IPR026019	Ribulose-phosphate 3-epimerase	Family
A, B, C	IPR013785	Aldolase-type TIM barrel	Homologous Superfamily
A, B, C	IPR011060	Ribulose-phosphate binding barrel	Homologous Superfamily

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.