Annotations: 7D51

Crystal structure of a truly knotted protein: cyclized YibK from Haemophilus influenzae

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
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)
B	SCOP2B Superfamily	alpha/beta knot	8043881	3001122	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	alpha/beta knot	8043881	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)
B	Trypsin	e7d51B1	A: beta barrels	X: CNF1/YfiH-like putative cysteine hydrolases	H: RIFT-related	T: FMN-binding split barrel 2	F: Trypsin	ECOD (v294.2)
A	Trypsin	e7d51A1	A: beta barrels	X: CNF1/YfiH-like putative cysteine hydrolases	H: RIFT-related	T: FMN-binding split barrel 2	F: Trypsin	ECOD (v294.2)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	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, B	tRNA (cytidine(34)-2'-O)-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 methyltransferase activity tRNA (cytidine(34)-2'-O-ribose)-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 methyltransferase activity tRNA (cytidine(34)-2'-O-ribose)-methyltransferase activity catalytic activity RNA binding binding nucleic acid binding tRNA (uridine) methyltransferase activity tRNA (5-carboxymethylaminomethyluridine(34)-2'-O-ribose)-methyltransferase activity identical protein binding protein binding	RNA metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process tRNA processing RNA processing wobble position uridine ribose methylation tRNA modification primary metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process macromolecule methylation RNA metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process tRNA processing RNA processing wobble position uridine ribose methylation tRNA modification primary metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process macromolecule methylation wobble position ribose methylation tRNA metabolic process tRNA nucleoside ribose methylation RNA modification biosynthetic process methylation macromolecule modification metabolic process cellular process macromolecule metabolic process RNA methylation tRNA methylation wobble position cytosine ribose methylation	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

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

RCSB PDB is hosted by

RCSB PDB is a member of

RCSB Partners
Nucleic Acid Knowledgebase

CoreTrustSeal

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.