Annotations: 4O9K

Crystal structure of the CBS pair of a putative D-arabinose 5-phosphate isomerase from Methylococcus capsulatus in complex with CMP-Kdo

External Resource: Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d4o9kb_	Alpha and beta proteins (a+b)	CBS-domain pair	CBS-domain pair	automated matches	automated matches	(Methylococcus capsulatus str. Bath ) [TaxId: 243233 ],	SCOPe (2.08)
A	d4o9ka_	Alpha and beta proteins (a+b)	CBS-domain pair	CBS-domain pair	automated matches	automated matches	(Methylococcus capsulatus str. Bath ) [TaxId: 243233 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	CBS-domain pair	8063596	3000123	SCOP2B (2022-06-29)
A	SCOP2 Family	CBS-domain pair	8063595	4000247	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	CBS-domain pair	8063596	3000123	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)
B	PepSY_like	e4o9kB1	A: beta barrels	X: FAD-linked reductases, C-terminal domain-like	H: FAD-linked reductases-C	T: FAD-linked reductases-C	F: PepSY_like	ECOD (v294.2)
A	NiFe_hyd_SSU_C	e4o9kA1	A: beta barrels	X: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	H: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	T: Fe-S cluster-binding domain in nickel-iron hydrogenase small subunit	F: NiFe_hyd_SSU_C	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.10.580.10	Alpha Beta	Roll	CBS-domain	CBS-domain	CATH (4.3.0)
A	3.10.580.10	Alpha Beta	Roll	CBS-domain	CBS-domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF00571	CBS domain (CBS)	CBS domain	CBS domains are small intracellular modules that pair together to form a stable globular domain [2]. This family represents a single CBS domain. Pairs of these domains have been termed a Bateman domain [6]. CBS domains have been shown to bind ligands ...	CBS domains are small intracellular modules that pair together to form a stable globular domain [2]. This family represents a single CBS domain. Pairs of these domains have been termed a Bateman domain [6]. CBS domains have been shown to bind ligands with an adenosyl group such as AMP, ATP and S-AdoMet [5]. CBS domains are found attached to a wide range of other protein domains suggesting that CBS domains may play a regulatory role making proteins sensitive to adenosyl carrying ligands. The region containing the CBS domains in Cystathionine-beta synthase is involved in regulation by S-AdoMet [4]. CBS domain pairs from AMPK bind AMP or ATP [5]. The CBS domains from IMPDH and the chloride channel CLC2 bind ATP [5].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	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	carbohydrate metabolic process primary metabolic process metabolic process cellular process carbohydrate derivative metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

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

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