Annotations: 3N3W

2.2 Angstrom Resolution Crystal Structure of Nuclease Domain of Ribonuclase III (rnc) from Campylobacter jejuni

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)
B	SCOP2 Family	RNase III catalytic domain-like	8100603	4002876	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	RNase III domain-like	8100604	3001839	SCOP2 (2022-06-29)
A	SCOP2B Superfamily	RNase III domain-like	8100604	3001839	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	PBP	e3n3wB1	A: beta barrels	X: Lipocalins/Streptavidin	H: Immunoglobulin-related	T: PEBP-like	F: PBP	ECOD (v294.2)
A	Col-Pyo_DNase	e3n3wA1	A: beta barrels	X: Immunoglobulin-like beta-sandwich	H: DEATH domain	T: DEATH domain	F: Col-Pyo_DNase	ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.1520.10	Mainly Alpha	Orthogonal Bundle	Ribonuclease iii, N-terminal Endonuclease Domain	Chain A	CATH (4.3.0)
A	1.10.1520.10	Mainly Alpha	Orthogonal Bundle	Ribonuclease iii, N-terminal Endonuclease Domain	Chain A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF14622	Ribonuclease-III-like (Ribonucleas_3_3)	Ribonuclease-III-like	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Ribonuclease III	RNA binding double-stranded RNA binding binding nucleic acid binding rRNA binding ribonuclease III activity double-stranded RNA-specific ribonuclease activity endonuclease activity RNA endonuclease activity producing 5'-phosphomonoesters, hydrolytic mechanism catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA nuclease activity hydrolase activity hydrolase activity, acting on ester bonds RNA binding double-stranded RNA binding binding nucleic acid binding rRNA binding ribonuclease III activity double-stranded RNA-specific ribonuclease activity endonuclease activity RNA endonuclease activity producing 5'-phosphomonoesters, hydrolytic mechanism catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA nuclease activity hydrolase activity hydrolase activity, acting on ester bonds nuclease activity RNA endonuclease activity catalytic activity cation binding ion binding metal ion binding small molecule binding	regulation of biosynthetic process regulation of biological process regulation of cellular process biological regulation regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of gene expression biosynthetic process regulation of macromolecule biosynthetic process metabolic process cellular process macromolecule metabolic process regulation of metabolic process regulation of biosynthetic process regulation of biological process regulation of cellular process biological regulation regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of gene expression biosynthetic process regulation of macromolecule biosynthetic process metabolic process cellular process macromolecule metabolic process regulation of metabolic process ribonucleoprotein complex biogenesis RNA metabolic process primary metabolic process rRNA processing nucleobase-containing compound biosynthetic process nucleic acid metabolic process nucleobase-containing compound metabolic process cellular component biogenesis RNA biosynthetic process ribosome biogenesis nucleic acid biosynthetic process cellular component organization or biogenesis RNA processing rRNA metabolic process tRNA metabolic process tRNA processing mRNA processing mRNA metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR011907	Ribonuclease III	Family
A, B	IPR036389	Ribonuclease III, endonuclease domain superfamily	Homologous Superfamily
A, B	IPR000999	Ribonuclease III domain	Domain
A, B	IPR014720	Double-stranded RNA-binding domain	Domain

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.