Annotations: 3N4J

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3n4ja1	Alpha and beta proteins (a/b)	alpha/beta knot	alpha/beta knot	SpoU-like RNA 2'-O ribose methyltransferase	automated matches	(Yersinia pestis CO92 ) [TaxId: 214092 ],	SCOPe (2.08)
A	d3n4ja2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Yersinia pestis CO92 ) [TaxId: 214092 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	alpha/beta knot	8081236	3001122	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	PF00588	e3n4jA1	A: a/b three-layered sandwiches	X: alpha/beta knot (From Topology)	H: alpha/beta knot (From Topology)	T: alpha/beta knot	F: PF00588	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.1280.10	Alpha Beta	3-Layer(aba) Sandwich	Alpha/beta knot	SPOUT methyltransferase, trefoil knot domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00588	SpoU rRNA Methylase family (SpoU_methylase)	SpoU rRNA Methylase family	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	RNA methyltransferase	tRNA methyltransferase activity RNA methyltransferase activity catalytic activity, acting on RNA tRNA (cytidine) methyltransferase activity 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 (cytidine(34)-2'-O)-methyltransferase activity methyltransferase activity catalytic activity RNA binding binding tRNA methyltransferase activity RNA methyltransferase activity catalytic activity, acting on RNA tRNA (cytidine) methyltransferase activity 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 (cytidine(34)-2'-O)-methyltransferase activity methyltransferase activity catalytic activity RNA binding binding organic cyclic compound binding nucleic acid binding tRNA (5-carboxymethylaminomethyluridine(34)-2'-O)-methyltransferase activity tRNA (uridine) methyltransferase activity	cellular biosynthetic process RNA metabolic process nucleobase-containing compound metabolic process organic substance metabolic process tRNA processing organic substance biosynthetic process RNA processing wobble position uridine ribose methylation cellular metabolic process tRNA modification primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process cellular biosynthetic process RNA metabolic process nucleobase-containing compound metabolic process organic substance metabolic process tRNA processing organic substance biosynthetic process RNA processing wobble position uridine ribose methylation cellular metabolic process tRNA modification primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process macromolecule methylation wobble position ribose methylation tRNA metabolic process organic cyclic compound metabolic process tRNA nucleoside ribose methylation RNA modification biosynthetic process methylation macromolecule modification ncRNA metabolic process nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process RNA methylation tRNA methylation wobble position cytosine ribose methylation	intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR001537	tRNA/rRNA methyltransferase, SpoU type	Domain
A	IPR029026	tRNA (guanine-N1-)-methyltransferase, N-terminal	Homologous Superfamily
A	IPR029028	Alpha/beta knot methyltransferases	Homologous Superfamily
A	IPR016914	tRNA (cytidine/uridine-2'-O-)-methyltransferase TrmL	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 R01GM133198.