4KUC

Crystal structure of ricin-A chain in complex with the antibody 6C2

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
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)
A	d4kuca_	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 ],	SCOPe (2.08)
D [auth I]	d4kuci_	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 ],	SCOPe (2.08)
E	d4kuce_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B [auth D]	d4kucd1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
C [auth H]	d4kuch_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
F	d4kucf_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Ribosome inactivating proteins (RIP)	8041968	3001164	SCOP2B (2022-06-29)
D [auth I]	SCOP2B Superfamily	Ribosome inactivating proteins (RIP)	8041968	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	RIP	e4kucA1	A: a+b two layers	X: RIP/Polo-box domain	H: Ribosome inactivating proteins (RIP) (From Topology)	T: Ribosome inactivating proteins (RIP)	F: RIP	ECOD (1.6)
D [auth I]	RIP	e4kucI1	A: a+b two layers	X: RIP/Polo-box domain	H: Ribosome inactivating proteins (RIP) (From Topology)	T: Ribosome inactivating proteins (RIP)	F: RIP	ECOD (1.6)
E	V-set	e4kucE1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
B [auth D]	C1-set	e4kucD1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set	ECOD (1.6)
B [auth D]	V-set	e4kucD2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
C [auth H]	V-set_8	e4kucH2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
C [auth H]	C1-set_1	e4kucH1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
F	V-set_8	e4kucF1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	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)
D [auth I]	3.40.420.10	Alpha Beta	3-Layer(aba) Sandwich	Ricin (A subunit)	domain 1	CATH (4.3.0)
D [auth I]	4.10.470.10	Few Secondary Structures	Irregular	Ricin (A Subunit), domain 2	Ricin (A Subunit), domain 2	CATH (4.3.0)
E	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B [auth D]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
C [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
F	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
B [auth D], E	mAb 6c2 fab	L-KAPPA	Chimeric (chimeric)	IGKV3-1201, IGKJ101, IGKC*01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202443-0)
C [auth H], F	mAb 6c2 fab	VH-CH1	Chimeric (chimeric)	IGHV1S6101, IGHJ401, IGHG101, IGHG102, IGHG104, IGHG105	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202443-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth D], E	Light Chain	IGKV3	Kappa	ricin	SAbDab (2024-11-01)
C [auth H], F	Heavy Chain	IGHV1	-	ricin	SAbDab (2024-11-01)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, D [auth I]	PF00161	Ribosome inactivating protein (RIP)	Ribosome inactivating protein	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, D [auth I]	Ricin	binding carbohydrate 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 adenyl ribonucleotide binding nucleotide binding binding carbohydrate 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 adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding cation binding AMP binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding	regulation of cellular process cellular 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 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 cellular metabolic process regulation of cellular process cellular 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 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 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 biological process involved in interspecies interaction between organisms disruption of cell in another organism disruption of anatomical structure in another organism killing of cells of another organism cell killing response to stimulus defense response response to stress	-
B [auth D], E	mAb6c2 fab-Heavy chain	-	-	-
C [auth H], F	mAb6c2 fab-Light chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, D [auth I]	IPR016139	Ribosome-inactivating protein, subdomain 2	Homologous Superfamily
A, D [auth I]	IPR016138	Ribosome-inactivating protein, subdomain 1	Homologous Superfamily
A, D [auth I]	IPR001574	Ribosome-inactivating protein	Family
A, D [auth I]	IPR036041	Ribosome-inactivating protein superfamily	Homologous Superfamily
A, D [auth I]	IPR017988	Ribosome-inactivating protein conserved site	Conserved Site
A, D [auth I]	IPR017989	Ribosome-inactivating protein type 1/2	Family
A, D [auth I]	IPR035992	Ricin B-like lectins	Homologous Superfamily
A, D [auth I]	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 R01GM157729.