2H2W | pdb_00002h2w

Crystal structure of Homoserine O-succinyltransferase (EC 2.3.1.46) (Homoserine O-transsuccinylase) (HTS) (tm0881) from THERMOTOGA MARITIMA at 2.52 A resolution

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	d2h2wa_	Alpha and beta proteins (a/b)	Flavodoxin-like	Class I glutamine amidotransferase-like	HTS-like	Homoserine O-succinyltransferase HTS (MetA)	(Thermotoga maritima ) [TaxId: 2336 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	HTS-like	8086615	4002538	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Class I glutamine amidotransferase-like	8086616	3001405	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	HTS	e2h2wA1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Class I glutamine amidotransferase-like	T: Class I glutamine amidotransferase-like	F: HTS	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.880	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Class I glutamine amidotransferase (GATase) domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF04204	Homoserine O-succinyltransferase (HTS)	Homoserine O-succinyltransferase	The activation of homoserine through succinylation of homoserine in some bacteria, such as Escherichia coli and Bacillus cereus, is carried out by homoserine O-succinyltransferase (HTS, EC:2.3.1.46), while other bacteria, such as Haemophilus influenz ...	The activation of homoserine through succinylation of homoserine in some bacteria, such as Escherichia coli and Bacillus cereus, is carried out by homoserine O-succinyltransferase (HTS, EC:2.3.1.46), while other bacteria, such as Haemophilus influenzae, Pseudomonas aeruginosa, and Mycobacterium tuberculosis, acetylate homoserine via homoserine O-acetyltransferase (HTA;EC:2.3.1.31) [1,2]. This family also includes serine acetyltransferase CysE (EC:2.3.1.30) from Lactobacillus casei, which catalyses the formation of O-acetyl serine from L-serine and acetyl-CoA, and is involved in cysteine biosynthesis [3].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Homoserine O-succinyltransferase	acetyltransferase activity O-acyltransferase activity acyltransferase activity O-acetyltransferase activity acyltransferase activity, transferring groups other than amino-acyl groups transferase activity catalytic activity homoserine O-acetyltransferase activity homoserine O-succinyltransferase activity O-succinyltransferase activity succinyltransferase activity	oxoacid metabolic process sulfur amino acid metabolic process aspartate family amino acid biosynthetic process amino acid metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process carboxylic acid biosynthetic process 'de novo' L-methionine biosynthetic process non-proteinogenic amino acid metabolic process L-methionine biosynthetic process from L-homoserine via cystathionine small molecule metabolic process sulfur compound metabolic process L-methionine biosynthetic process oxoacid metabolic process sulfur amino acid metabolic process aspartate family amino acid biosynthetic process amino acid metabolic process organic acid biosynthetic process organic acid metabolic process alpha-amino acid metabolic process carboxylic acid biosynthetic process 'de novo' L-methionine biosynthetic process non-proteinogenic amino acid metabolic process L-methionine biosynthetic process from L-homoserine via cystathionine small molecule metabolic process sulfur compound metabolic process L-methionine biosynthetic process methionine biosynthetic process L-methionine biosynthetic process from homoserine via O-succinyl-L-homoserine and cystathionine 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 homoserine metabolic process sulfur amino acid biosynthetic process alpha-amino acid biosynthetic process	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR029062	Class I glutamine amidotransferase-like	Homologous Superfamily
A	IPR005697	Homoserine O-succinyltransferase MetA	Family
A	IPR033752	MetA family	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.