2XHZ

Probing the active site of the sugar isomerase domain from E. coli arabinose-5-phosphate isomerase via X-ray crystallography

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	SIS domain/Ribosomal protein S2-like	8063710	3001397	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	SIS domain/Ribosomal protein S2-like	8063710	3001397	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	SIS domain/Ribosomal protein S2-like	8063710	3001397	SCOP2B (2022-06-29)
D	SCOP2 Family	mono-SIS domain	8063709	4003354	SCOP2 (2022-06-29)
D	SCOP2 Superfamily	SIS domain/Ribosomal protein S2-like	8063710	3001397	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	SIS	e2xhzA1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Ribosomal protein S2/SIS domain (From Topology)	T: Ribosomal protein S2/SIS domain	F: SIS	ECOD (1.6)
B	SIS	e2xhzB1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Ribosomal protein S2/SIS domain (From Topology)	T: Ribosomal protein S2/SIS domain	F: SIS	ECOD (1.6)
C	SIS	e2xhzC1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Ribosomal protein S2/SIS domain (From Topology)	T: Ribosomal protein S2/SIS domain	F: SIS	ECOD (1.6)
D	SIS	e2xhzD1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Ribosomal protein S2/SIS domain (From Topology)	T: Ribosomal protein S2/SIS domain	F: SIS	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.10490	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Glucose-6-phosphate isomerase like protein	CATH (4.3.0)
B	3.40.50.10490	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Glucose-6-phosphate isomerase like protein	CATH (4.3.0)
C	3.40.50.10490	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Glucose-6-phosphate isomerase like protein	CATH (4.3.0)
D	3.40.50.10490	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Glucose-6-phosphate isomerase like protein	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF01380	SIS domain (SIS)	SIS domain	SIS (Sugar ISomerase) domains are found in many phosphosugar isomerases and phosphosugar binding proteins. SIS domains are also found in proteins that regulate the expression of genes involved in synthesis of phosphosugars. Presumably the SIS domain ...	SIS (Sugar ISomerase) domains are found in many phosphosugar isomerases and phosphosugar binding proteins. SIS domains are also found in proteins that regulate the expression of genes involved in synthesis of phosphosugars. Presumably the SIS domains bind to the end-product of the pathway.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	ARABINOSE 5-PHOSPHATE ISOMERASE	isomerase activity intramolecular oxidoreductase activity, interconverting aldoses and ketoses intramolecular oxidoreductase activity arabinose-5-phosphate isomerase activity catalytic activity binding carbohydrate derivative binding cation binding ion binding metal ion binding small molecule binding identical protein binding protein binding	protein-containing complex organization protein homotetramerization cellular component organization cellular component biogenesis cellular component assembly protein complex oligomerization protein tetramerization protein-containing complex assembly protein homooligomerization cellular process cellular component organization or biogenesis monosaccharide metabolic process lipopolysaccharide biosynthetic process oxoacid metabolic process protein-containing complex organization protein homotetramerization cellular component organization cellular component biogenesis cellular component assembly protein complex oligomerization protein tetramerization protein-containing complex assembly protein homooligomerization cellular process cellular component organization or biogenesis monosaccharide metabolic process lipopolysaccharide biosynthetic process oxoacid metabolic process cellular biosynthetic process lipid biosynthetic process carbohydrate derivative metabolic process organic acid biosynthetic process organic acid metabolic process keto-3-deoxy-D-manno-octulosonic acid biosynthetic process carboxylic acid biosynthetic process lipopolysaccharide metabolic process polysaccharide metabolic process small molecule metabolic process carbohydrate derivative biosynthetic process carbohydrate metabolic process small molecule biosynthetic process polysaccharide biosynthetic process cellular metabolic process carbohydrate biosynthetic process liposaccharide metabolic process carboxylic acid metabolic process monosaccharide biosynthetic process primary metabolic process macromolecule biosynthetic process keto-3-deoxy-D-manno-octulosonic acid metabolic process biosynthetic process metabolic process macromolecule metabolic process lipid metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR046342	CBS domain superfamily	Homologous Superfamily
A, B, C, D	IPR046348	SIS domain superfamily	Homologous Superfamily
A, B, C, D	IPR035474	KpsF-like, SIS domain	Domain
A, B, C, D	IPR000644	CBS domain	Domain
A, B, C, D	IPR050986	SIS family GutQ/KpsF subfamily isomerases	Family
A, B, C, D	IPR001347	SIS domain	Domain
A, B, C, D	IPR004800	Phosphosugar isomerase, KdsD/KpsF-type	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 R01GM157729.