3KPB

Crystal Structure of the CBS domain pair of protein MJ0100 in complex with 5 -methylthioadenosine and S-adenosyl-L-methionine.

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)
A	d3kpba_	Alpha and beta proteins (a+b)	CBS-domain pair	CBS-domain pair	automated matches	automated matches	Methanococcus jannaschii (Methanocaldococcus jannaschii ) [TaxId: 2190 ],	SCOPe (2.08)
B [auth C]	d3kpbc_	Alpha and beta proteins (a+b)	CBS-domain pair	CBS-domain pair	automated matches	automated matches	Methanococcus jannaschii (Methanocaldococcus jannaschii ) [TaxId: 2190 ],	SCOPe (2.08)
C [auth B]	d3kpbb_	Alpha and beta proteins (a+b)	CBS-domain pair	CBS-domain pair	automated matches	automated matches	Methanococcus jannaschii (Methanocaldococcus jannaschii ) [TaxId: 2190 ],	SCOPe (2.08)
D	d3kpbd_	Alpha and beta proteins (a+b)	CBS-domain pair	CBS-domain pair	automated matches	automated matches	Methanococcus jannaschii (Methanocaldococcus jannaschii ) [TaxId: 2190 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	CBS-domain pair	8063597	4000247	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	CBS-domain pair	8063598	3000123	SCOP2 (2022-06-29)
B [auth C]	SCOP2B Superfamily	CBS-domain pair	8063598	3000123	SCOP2B (2022-06-29)
C [auth B]	SCOP2B Superfamily	CBS-domain pair	8063598	3000123	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	CBS-domain pair	8063598	3000123	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)
A	IMPDH_2nd_1	e3kpbA1	A: a+b duplicates or obligate multimers	X: CBS-domain (From Topology)	H: CBS-domain (From Topology)	T: CBS-domain	F: IMPDH_2nd_1	ECOD (1.6)
B [auth C]	IMPDH_2nd_1	e3kpbC1	A: a+b duplicates or obligate multimers	X: CBS-domain (From Topology)	H: CBS-domain (From Topology)	T: CBS-domain	F: IMPDH_2nd_1	ECOD (1.6)
C [auth B]	IMPDH_2nd_1	e3kpbB1	A: a+b duplicates or obligate multimers	X: CBS-domain (From Topology)	H: CBS-domain (From Topology)	T: CBS-domain	F: IMPDH_2nd_1	ECOD (1.6)
D	IMPDH_2nd_1	e3kpbD1	A: a+b duplicates or obligate multimers	X: CBS-domain (From Topology)	H: CBS-domain (From Topology)	T: CBS-domain	F: IMPDH_2nd_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.580.10	Alpha Beta	Roll	CBS-domain	CBS-domain	CATH (4.3.0)
B [auth C]	3.10.580.10	Alpha Beta	Roll	CBS-domain	CBS-domain	CATH (4.3.0)
C [auth B]	3.10.580.10	Alpha Beta	Roll	CBS-domain	CBS-domain	CATH (4.3.0)
D	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 [auth C], C [auth B], D	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 [auth C], C [auth B], D	Uncharacterized protein MJ0100	transferase activity catalytic activity	oxoacid metabolic process sulfur amino acid metabolic process aspartate family amino acid biosynthetic process aspartate family amino acid metabolic process amino acid metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process carboxylic acid biosynthetic process small molecule metabolic process sulfur compound metabolic process methionine biosynthetic process small molecule biosynthetic process carboxylic acid metabolic process oxoacid metabolic process sulfur amino acid metabolic process aspartate family amino acid biosynthetic process aspartate family amino acid metabolic process amino acid metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process carboxylic acid biosynthetic process small molecule metabolic process sulfur compound metabolic process methionine biosynthetic process small molecule biosynthetic process carboxylic acid metabolic process L-amino acid biosynthetic process primary metabolic process methionine metabolic process L-amino acid metabolic process proteinogenic amino acid metabolic process amino acid biosynthetic process sulfur compound biosynthetic process biosynthetic process proteinogenic amino acid biosynthetic process metabolic process cellular process sulfur amino acid biosynthetic process alpha-amino acid biosynthetic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B [auth C], C [auth B], D	IPR051462	CBS domain-containing protein	Family
A, B [auth C], C [auth B], D	IPR002708	Homocysteine biosynthesis enzyme, sulfur-incorporation	Domain
A, B [auth C], C [auth B], D	IPR046342	CBS domain superfamily	Homologous Superfamily
A, B [auth C], C [auth B], D	IPR016426	L-aspartate semialdehyde sulfurtransferase MA1821-like	Family
A, B [auth C], C [auth B], D	IPR000644	CBS domain	Domain

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.