3LEC

The Crystal Structure of a protein in the NADB-Rossmann Superfamily from Streptococcus agalactiae to 1.8A

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	SCOP2 Family	m1A22 tRNA Methyltransferase TrmK-like	8046487	4005114	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	S-adenosyl-L-methionine-dependent methyltransferases	8090768	3000118	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	TrmK	e3lecA1	A: alpha bundles	X: Long alpha-hairpin	H: Helical hairpin in putative tRNA methyltransferase (From Topology)	T: Helical hairpin in putative tRNA methyltransferase	F: TrmK	ECOD (1.6)
A	Methyltransf_18	e3lecA2	A: a/b three-layered sandwiches	X: Rossmann-like	H: Rossmann-related	T: S-adenosyl-L-methionine-dependent methyltransferases	F: Methyltransf_18	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.150	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Vaccinia Virus protein VP39	CATH (4.3.0)
A	1.10.287.1890	Mainly Alpha	Orthogonal Bundle	Helix Hairpins		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF04816	tRNA (adenine(22)-N(1))-methyltransferase (TrmK)	tRNA (adenine(22)-N(1))-methyltransferase	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	NADB-Rossmann Superfamily protein	tRNA methyltransferase activity RNA methyltransferase activity tRNA (adenine(22)-N1)-methyltransferase activity catalytic activity, acting on RNA transferase activity, transferring one-carbon groups catalytic activity, acting on a nucleic acid catalytic activity, acting on a tRNA transferase activity S-adenosylmethionine-dependent methyltransferase activity tRNA (adenine) methyltransferase activity methyltransferase activity catalytic activity cation binding ion binding tRNA methyltransferase activity RNA methyltransferase activity tRNA (adenine(22)-N1)-methyltransferase activity catalytic activity, acting on RNA transferase activity, transferring one-carbon groups catalytic activity, acting on a nucleic acid catalytic activity, acting on a tRNA transferase activity S-adenosylmethionine-dependent methyltransferase activity tRNA (adenine) methyltransferase activity methyltransferase activity catalytic activity cation binding ion binding binding metal ion binding small molecule binding	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR029063	S-adenosyl-L-methionine-dependent methyltransferase superfamily	Homologous Superfamily
A	IPR006901	tRNA methyltransferase TrmK	Family

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.