1JBR

Crystal Structure of the Ribotoxin Restrictocin and a 31-mer SRD RNA Inhibitor

External Resource: Annotation

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
D [auth A]	d1jbra_	Alpha and beta proteins (a+b)	Microbial ribonucleases	Microbial ribonucleases	Ribotoxin	Restrictocin	(Aspergillus restrictus ) [TaxId: 5064 ],	SCOPe (2.08)
E [auth B]	d1jbrb_	Alpha and beta proteins (a+b)	Microbial ribonucleases	Microbial ribonucleases	Ribotoxin	Restrictocin	(Aspergillus restrictus ) [TaxId: 5064 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D [auth A]	SCOP2B Superfamily	Microbial ribonucleases	8036872	3001847	SCOP2B (2022-06-29)
E [auth B]	SCOP2B Superfamily	Microbial ribonucleases	8036872	3001847	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)
D [auth A]	Ribonuclease	e1jbrA1	A: a+b two layers	X: Microbial ribonucleases-like	H: Microbial ribonucleases (From Topology)	T: Microbial ribonucleases	F: Ribonuclease	ECOD (1.6)
E [auth B]	Ribonuclease	e1jbrB1	A: a+b two layers	X: Microbial ribonucleases-like	H: Microbial ribonucleases (From Topology)	T: Microbial ribonucleases	F: Ribonuclease	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D [auth A]	3.10.450.30	Alpha Beta	Roll	Nuclear Transport Factor 2	Chain: A,	CATH (4.3.0)
E [auth B]	3.10.450.30	Alpha Beta	Roll	Nuclear Transport Factor 2	Chain: A,	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
D [auth A], E [auth B]	PF00545	ribonuclease (Ribonuclease)	ribonuclease	This enzyme hydrolyses RNA and oligoribonucleotides.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth C]	5'-R(GPCPGPCPUPCPCPUPCPAPGPUPAPCPGPAPGP(A23))-3'	-	-	-
B [auth F]	5'-R(GPGPAPAPCPCPGPGPAPGPCPGP*C)-3'	-	-	-
C [auth D]	31-mer SRD RNA analog	-	-	-
D [auth A], E [auth B]	Restrictocin	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 nucleic acid binding	regulation of cellular process negative regulation of biological process regulation of primary metabolic process post-transcriptional regulation of gene expression negative regulation of translation negative regulation of cellular process protein metabolic process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process regulation of protein metabolic process negative regulation of metabolic process biological regulation regulation of cellular process negative regulation of biological process regulation of primary metabolic process post-transcriptional regulation of gene expression negative regulation of translation negative regulation of cellular process protein metabolic process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process regulation of biosynthetic process regulation of biological process regulation of protein metabolic process negative regulation of metabolic process biological regulation primary metabolic process regulation of macromolecule metabolic process gene expression translation macromolecule biosynthetic process regulation of gene expression negative regulation of gene expression biosynthetic process negative regulation of biosynthetic process regulation of translation negative regulation of macromolecule biosynthetic process regulation of macromolecule biosynthetic process metabolic process cellular process macromolecule metabolic process regulation of metabolic process	cellular anatomical structure extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
D [auth A], E [auth B]	IPR000026	Guanine-specific ribonuclease N1-like	Family
D [auth A], E [auth B]	IPR016191	Ribonuclease/ribotoxin	Homologous Superfamily
D [auth A], E [auth B]	IPR048269	Ribonuclease ribotoxin, alpha-sarcin type	Family
D [auth A], E [auth B]	IPR004025	Fungal ribotoxin	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 R01GM157729.