Annotations: 2K3R

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Zinc beta-ribbon	8057025	3001238	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	PF04032	e2k3rA1	A: few secondary structure elements	X: Rubredoxin-like	H: Rubredoxin-related	T: Rubredoxin-related	F: PF04032	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.5.420	Mainly Alpha	Up-down Bundle	Single alpha-helices involved in coiled-coils or other helix-helix interfaces	Immunoglobulin FC, subunit C	CATH (4.3.0)
A	6.20.50.20	Special	Other non-globular	N-terminal domain of TfIIb		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF04032	RNAse P Rpr2/Rpp21/SNM1 subunit domain (Rpr2)	RNAse P Rpr2/Rpp21/SNM1 subunit domain	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Ribonuclease P protein component 4	tRNA-specific ribonuclease activity endonuclease activity RNA endonuclease activity, producing 5'-phosphomonoesters catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA nuclease activity hydrolase activity catalytic activity, acting on a tRNA nuclease activity hydrolase activity, acting on ester bonds RNA endonuclease activity ribonuclease P activity endonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters catalytic activity tRNA-specific ribonuclease activity endonuclease activity RNA endonuclease activity, producing 5'-phosphomonoesters catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA nuclease activity hydrolase activity catalytic activity, acting on a tRNA nuclease activity hydrolase activity, acting on ester bonds RNA endonuclease activity ribonuclease P activity endonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 5'-phosphomonoesters catalytic activity cation binding transition metal ion binding zinc ion binding ion binding binding metal ion binding small molecule binding	cellular biosynthetic process RNA metabolic process nucleobase-containing compound metabolic process organic substance metabolic process tRNA processing organic substance biosynthetic process RNA processing tRNA 5'-end processing cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process tRNA 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 tRNA 5'-end processing cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process organic cyclic compound metabolic process biosynthetic process ncRNA metabolic process nucleic acid catabolic process RNA 5'-end processing metabolic process cellular process macromolecule metabolic process tRNA 5'-leader removal	intracellular anatomical structure cytoplasm cellular anatomical entity protein-containing complex endoribonuclease complex catalytic complex ribonuclease P complex ribonucleoprotein complex intracellular protein-containing complex endonuclease complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR007175	Ribonuclease P subunit, Rpr2/Snm1/Rpp21	Family
A	IPR016432	Ribonuclease P subunit RNP4	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.