Annotations: 1RZO

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1rzoa_	Alpha and beta proteins (a+b)	Ribosome inactivating proteins (RIP)	Ribosome inactivating proteins (RIP)	Plant cytotoxins	Ricin A-chain	(Ricinus communis ) [TaxId: 3988 ],	SCOPe (2.08)
C	d1rzoc_	Alpha and beta proteins (a+b)	Ribosome inactivating proteins (RIP)	Ribosome inactivating proteins (RIP)	Plant cytotoxins	Ricin A-chain	(Ricinus communis ) [TaxId: 3988 ],	SCOPe (2.08)
B	d1rzob1	All beta proteins	beta-Trefoil	Ricin B-like lectins	Ricin B-like	Plant cytotoxin B-chain (lectin)	(Ricinus communis ) [TaxId: 3988 ],	SCOPe (2.08)
D	d1rzod1	All beta proteins	beta-Trefoil	Ricin B-like lectins	Ricin B-like	Plant cytotoxin B-chain (lectin)	(Ricinus communis ) [TaxId: 3988 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Plant cytotoxins	8071055	4002385	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Ribosome inactivating proteins (RIP)	8071056	3001164	SCOP2 (2022-06-29)
C	SCOP2B Superfamily	Ribosome inactivating proteins (RIP)	8071056	3001164	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	PF00161	e1rzoA1	A: a+b two layers	X: RIP/Polo-box domain	H: Ribosome inactivating proteins (RIP) (From Topology)	T: Ribosome inactivating proteins (RIP)	F: PF00161	ECOD (1.6)
C	PF00161	e1rzoC1	A: a+b two layers	X: RIP/Polo-box domain	H: Ribosome inactivating proteins (RIP) (From Topology)	T: Ribosome inactivating proteins (RIP)	F: PF00161	ECOD (1.6)
B	PF00652	e1rzoB1	A: beta duplicates or obligate multimers	X: beta-Trefoil (From Topology)	H: beta-Trefoil (From Topology)	T: beta-Trefoil	F: PF00652	ECOD (1.6)
D	PF00652	e1rzoD1	A: beta duplicates or obligate multimers	X: beta-Trefoil (From Topology)	H: beta-Trefoil (From Topology)	T: beta-Trefoil	F: PF00652	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.420.10	Alpha Beta	3-Layer(aba) Sandwich	Ricin (A subunit)	domain 1	CATH (4.3.0)
A	4.10.470.10	Few Secondary Structures	Irregular	Ricin (A Subunit), domain 2	Ricin (A Subunit), domain 2	CATH (4.3.0)
C	3.40.420.10	Alpha Beta	3-Layer(aba) Sandwich	Ricin (A subunit)	domain 1	CATH (4.3.0)
C	4.10.470.10	Few Secondary Structures	Irregular	Ricin (A Subunit), domain 2	Ricin (A Subunit), domain 2	CATH (4.3.0)
B	2.80.10.50	Mainly Beta	Trefoil	Trefoil (Acidic Fibroblast Growth Factor, subunit A)		CATH (4.3.0)
D	2.80.10.50	Mainly Beta	Trefoil	Trefoil (Acidic Fibroblast Growth Factor, subunit A)		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, C	PF00161	Ribosome inactivating protein (RIP)	Ribosome inactivating protein	-	Domain
B, D	PF00652	Ricin-type beta-trefoil lectin domain (Ricin_B_lectin)	Ricin-type beta-trefoil lectin domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, C	Agglutinin	binding carbohydrate binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding toxin activity hydrolase activity, acting on glycosyl bonds rRNA N-glycosylase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid hydrolase activity catalytic activity, acting on a rRNA binding carbohydrate binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding toxin activity hydrolase activity, acting on glycosyl bonds rRNA N-glycosylase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid hydrolase activity catalytic activity, acting on a rRNA catalytic activity RNA glycosylase activity hydrolase activity, hydrolyzing N-glycosyl compounds	regulation of cellular process cellular biosynthetic process organonitrogen compound biosynthetic process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process post-transcriptional regulation of gene expression negative regulation of translation organic substance metabolic process organic substance biosynthetic process negative regulation of cellular process protein metabolic process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process regulation of cellular process cellular biosynthetic process organonitrogen compound biosynthetic process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process post-transcriptional regulation of gene expression negative regulation of translation organic substance metabolic process organic substance biosynthetic process 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 organonitrogen compound metabolic process cellular metabolic process regulation of protein metabolic process negative regulation of metabolic process biological regulation regulation of cellular metabolic process primary metabolic process regulation of macromolecule metabolic process gene expression translation macromolecule biosynthetic process negative regulation of cellular biosynthetic process regulation of cellular 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 response to stimulus defense response response to stress	membrane-bounded organelle intracellular organelle intracellular anatomical structure organelle endoplasmic reticulum cytoplasm cellular anatomical entity intracellular membrane-bounded organelle endomembrane system
B, D	Agglutinin	binding carbohydrate binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding toxin activity hydrolase activity, acting on glycosyl bonds rRNA N-glycosylase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid hydrolase activity catalytic activity, acting on a rRNA binding carbohydrate binding nucleoside phosphate binding organic cyclic compound binding nucleotide binding heterocyclic compound binding small molecule binding toxin activity hydrolase activity, acting on glycosyl bonds rRNA N-glycosylase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid hydrolase activity catalytic activity, acting on a rRNA catalytic activity RNA glycosylase activity hydrolase activity, hydrolyzing N-glycosyl compounds	regulation of cellular process cellular biosynthetic process organonitrogen compound biosynthetic process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process post-transcriptional regulation of gene expression negative regulation of translation organic substance metabolic process organic substance biosynthetic process negative regulation of cellular process protein metabolic process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process regulation of cellular process cellular biosynthetic process organonitrogen compound biosynthetic process negative regulation of biological process negative regulation of cellular metabolic process regulation of primary metabolic process post-transcriptional regulation of gene expression negative regulation of translation organic substance metabolic process organic substance biosynthetic process 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 organonitrogen compound metabolic process cellular metabolic process regulation of protein metabolic process negative regulation of metabolic process biological regulation regulation of cellular metabolic process primary metabolic process regulation of macromolecule metabolic process gene expression translation macromolecule biosynthetic process negative regulation of cellular biosynthetic process regulation of cellular 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 response to stimulus defense response response to stress	membrane-bounded organelle intracellular organelle intracellular anatomical structure organelle endoplasmic reticulum cytoplasm cellular anatomical entity intracellular membrane-bounded organelle endomembrane system

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, C	IPR016139	Ribosome-inactivating protein, subdomain 2	Homologous Superfamily
A, C	IPR016138	Ribosome-inactivating protein, subdomain 1	Homologous Superfamily
A, C	IPR001574	Ribosome-inactivating protein	Family
A, C	IPR036041	Ribosome-inactivating protein superfamily	Homologous Superfamily
A, C	IPR017988	Ribosome-inactivating protein conserved site	Conserved Site
A, C	IPR017989	Ribosome-inactivating protein type 1/2	Family
A, C	IPR035992	Ricin B-like lectins	Homologous Superfamily
A, C	IPR000772	Ricin B, lectin domain	Domain
B, D	IPR016139	Ribosome-inactivating protein, subdomain 2	Homologous Superfamily
B, D	IPR016138	Ribosome-inactivating protein, subdomain 1	Homologous Superfamily
B, D	IPR001574	Ribosome-inactivating protein	Family
B, D	IPR036041	Ribosome-inactivating protein superfamily	Homologous Superfamily
B, D	IPR017988	Ribosome-inactivating protein conserved site	Conserved Site
B, D	IPR017989	Ribosome-inactivating protein type 1/2	Family
B, D	IPR035992	Ricin B-like lectins	Homologous Superfamily
B, D	IPR000772	Ricin B, lectin domain	Domain

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.