7MRX

Cryogenic crystal structure of barnase A43C/S80C bound to barstar C40A/C82A

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)
A	SCOP2B Superfamily	Microbial ribonucleases	8033554	3001847	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Microbial ribonucleases	8033554	3001847	SCOP2B (2022-06-29)
E	SCOP2B Superfamily	Microbial ribonucleases	8033554	3001847	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Barstar-related	8043969	3000977	SCOP2B (2022-06-29)
D	SCOP2B Superfamily	Barstar-related	8043969	3000977	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	Barstar-related	8043969	3000977	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	PF00545	e7mrxA1	A: a+b two layers	X: Microbial ribonucleases-like	H: Microbial ribonucleases (From Topology)	T: Microbial ribonucleases	F: PF00545	ECOD (1.6)
C	PF00545	e7mrxC1	A: a+b two layers	X: Microbial ribonucleases-like	H: Microbial ribonucleases (From Topology)	T: Microbial ribonucleases	F: PF00545	ECOD (1.6)
E	PF00545	e7mrxE1	A: a+b two layers	X: Microbial ribonucleases-like	H: Microbial ribonucleases (From Topology)	T: Microbial ribonucleases	F: PF00545	ECOD (1.6)
B	PF01337	e7mrxB1	A: a/b three-layered sandwiches	X: Barstar (barnase inhibitor) (From Topology)	H: Barstar (barnase inhibitor) (From Topology)	T: Barstar (barnase inhibitor)	F: PF01337	ECOD (1.6)
D	PF01337	e7mrxD1	A: a/b three-layered sandwiches	X: Barstar (barnase inhibitor) (From Topology)	H: Barstar (barnase inhibitor) (From Topology)	T: Barstar (barnase inhibitor)	F: PF01337	ECOD (1.6)
F	PF01337	e7mrxF1	A: a/b three-layered sandwiches	X: Barstar (barnase inhibitor) (From Topology)	H: Barstar (barnase inhibitor) (From Topology)	T: Barstar (barnase inhibitor)	F: PF01337	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, C, E	PF00545	ribonuclease (Ribonuclease)	ribonuclease	This enzyme hydrolyses RNA and oligoribonucleotides.	Domain
B, D, F	PF01337	Barstar (barnase inhibitor) (Barstar)	Barstar (barnase inhibitor)	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C, E	Ribonuclease	endonuclease activity nuclease activity hydrolase activity, acting on ester bonds catalytic activity, acting on RNA RNA endonuclease activity catalytic activity, acting on a nucleic acid RNA nuclease activity hydrolase activity catalytic activity RNA binding binding organic cyclic compound binding nucleic acid binding	-	extracellular region cellular anatomical entity
B, D, F	Barstar	-	-	intracellular anatomical structure cytoplasm cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C, E	IPR001887	Barnase	Family
A, C, E	IPR016191	Ribonuclease/ribotoxin	Homologous Superfamily
A, C, E	IPR000026	Guanine-specific ribonuclease Sa-like	Family
B, D, F	IPR000468	Barstar (barnase inhibitor)	Domain
B, D, F	IPR035905	Barstar-like superfamily	Homologous Superfamily

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.