1OBS

STRUCTURE OF RICIN A CHAIN MUTANT

Domain Annotation: SCOP Classification SCOP Database (version: 2.0) Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species
A	d1obsa_	Alpha and beta proteins (a+b)	Ribosome inactivating proteins (RIP)	Ribosome inactivating proteins (RIP)	Plant cytotoxins	Ricin A-chain	castor bean (Ricinus communis ) [TaxId: 3988 ]

Domain Annotation: CATH CATH Database (version 4.2.0) Homepage

Chain	Domain	Class	Architecture	Topology	Homology
A	3.40.420.10	Alpha Beta	3-Layer(aba) Sandwich	Ricin (A subunit)	domain 1
A	4.10.470.10	Few Secondary Structures	Irregular	Ricin (A Subunit), domain 2	Ricin (A Subunit), domain 2

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Identifier	Description	Comments	Source
A	PF00161	Ribosome inactivating protein (RIP)	Ribosome inactivating protein	-	Domain
A	PF00652	Ricin-type beta-trefoil lectin domain (Ricin_B_lectin)	Ricin-type beta-trefoil lectin domain	-	Domain

Gene Product Annotation Gene Product Annotation

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	RICIN A CHAIN	binding carbohydrate binding catalytic activity hydrolase activity hydrolase activity, acting on glycosyl bonds hydrolase activity, hydrolyzing N-glycosyl compounds RNA glycosylase activity rRNA N-glycosylase activity catalytic activity, acting on RNA catalytic activity, acting on a rRNA toxin activity		intracellular anatomical structure cytoplasm endoplasmic reticulum endomembrane system organelle membrane-bounded organelle intracellular organelle intracellular membrane-bounded organelle cellular anatomical entity

RCSB PDB is 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.