5DMN

Crystal Structure of the Homocysteine Methyltransferase MmuM from Escherichia coli, Apo form

External Resource: Annotation

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

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	S-methyl_trans	e5dmnA1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: S-methyl_trans	ECOD (1.6)
B	S-methyl_trans	e5dmnB1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: S-methyl_trans	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.20.20.330	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Homocysteine-binding-like domain	CATH (4.3.0)
B	3.20.20.330	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Homocysteine-binding-like domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02574	Homocysteine S-methyltransferase (S-methyl_trans)	Homocysteine S-methyltransferase	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Homocysteine S-methyltransferase	transferase activity, transferring one-carbon groups S-methylmethionine-homocysteine S-methyltransferase activity S-methyltransferase activity transferase activity methyltransferase activity catalytic activity cation binding transition metal ion binding zinc ion binding ion binding binding metal ion binding small molecule binding S-adenosylmethionine-homocysteine S-methyltransferase activity transferase activity, transferring one-carbon groups S-methylmethionine-homocysteine S-methyltransferase activity S-methyltransferase activity transferase activity methyltransferase activity catalytic activity cation binding transition metal ion binding zinc ion binding ion binding binding metal ion binding small molecule binding S-adenosylmethionine-homocysteine S-methyltransferase activity S-adenosylmethionine-dependent methyltransferase activity	cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process methylation metabolic process oxoacid metabolic process cellular biosynthetic process sulfur amino acid metabolic process aspartate family amino acid biosynthetic process aspartate family amino acid metabolic process amino acid metabolic process cellular response to stimulus cellular response to stress response to stimulus DNA damage response response to stress cellular process methylation metabolic process oxoacid metabolic process cellular biosynthetic 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 cellular metabolic 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 sulfur amino acid biosynthetic process alpha-amino acid biosynthetic process S-methylmethionine metabolic process cellular modified amino acid metabolic process S-methylmethionine cycle	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR051486	Homocysteine S-methyltransferase	Family
A, B	IPR003726	Homocysteine-binding domain	Domain
A, B	IPR036589	Homocysteine-binding domain superfamily	Homologous Superfamily
A, B	IPR017226	Betaine-homocysteine S-methyltransferase, BHMT	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.