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 1ZEA | pdb_00001zea

Structure of the anti-cholera toxin antibody Fab fragment TE33 in complex with a D-peptide

External Resource: Annotation


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
A [auth L]CopCe1zeaL1 A: alpha arraysX: HTHH: HTHT: tetra-helical, lambda repressor-likeF: CopCECOD (v295.2)
B [auth H]CopCe1zeaH1 A: alpha arraysX: HTHH: HTHT: tetra-helical, lambda repressor-likeF: CopCECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A [auth L]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
B [auth H]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

ChainProtein NameDescriptionOrganism NameGene Allele Name(s)Domain Name(s)Receptor TypeReceptor DescriptionProvenance Source
A [auth L]TE33 L-KAPPA Mus musculus (house mouse) IGKV1-117*01, IGKJ4*01, IGKC*01, IGKC*02 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202637-0)
B [auth H]TE33 VH-CH1 Mus musculus (house mouse) IGHV9-3*01, IGHJ1*03, IGHG1*02 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202637-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
A [auth L]Light ChainIGKV1 Kappashort synthetic d-amino acid peptide d2SAbDab (2026-09-25)
B [auth H]Heavy ChainIGHV9 -short synthetic d-amino acid peptide d2SAbDab (2026-09-25)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth L]monoclonal anti-cholera toxin IGG1 KAPPA antibody, L chain- -
B [auth H]monoclonal anti-cholera toxin IGG1 KAPPA antibody, H chain- -
C [auth A]short synthetic D-amino acid peptide D2---

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A [auth L]IPR003597Immunoglobulin C1-setDomain
A [auth L]IPR050150Immunoglobulin Variable Light ChainFamily
A [auth L]IPR013783Immunoglobulin-like foldHomologous Superfamily
A [auth L]IPR036179Immunoglobulin-like domain superfamilyHomologous Superfamily
A [auth L]IPR013106Immunoglobulin V-set domainDomain
A [auth L]IPR003599Immunoglobulin domain subtypeDomain
A [auth L]IPR007110Immunoglobulin-like domainDomain
A [auth L]IPR003006Immunoglobulin/major histocompatibility complex, conserved siteConserved Site
B [auth H]IPR050199Immunoglobulin Heavy VariableFamily
B [auth H]IPR013783Immunoglobulin-like foldHomologous Superfamily
B [auth H]IPR036179Immunoglobulin-like domain superfamilyHomologous Superfamily
B [auth H]IPR003598Immunoglobulin subtype 2Domain
B [auth H]IPR013106Immunoglobulin V-set domainDomain
B [auth H]IPR003599Immunoglobulin domain subtypeDomain
B [auth H]IPR007110Immunoglobulin-like domainDomain

Protein Modification Annotation

Modified Residue(s)
ChainResidue(s)Description
C [auth A]DAS :  AA0190

:  D-aspartic acid (Asp) MOD:01921 , D-aspartic acid (Asn) MOD:01930
C [auth A]DGN :  AA0190

C [auth A]DHI :  AA0190

C [auth A]DPR :  AA0190

C [auth A]DSN :  AA0190 , AA0195 , AA0624

:  D-aspartic acid (Asp) MOD:01921 , D-aspartic acid (Asn) MOD:01930 , D-serine (Ser) MOD:00202 , D-serine MOD:00891 , D-serine (Cys) MOD:00892 , 2-(L-cystein-S-yl)-D-serine MOD:01987
C [auth A]DTY :  AA0190 , AA0195 , AA0624

C [auth A]DVA :  AA0190 , AA0195 , AA0624 , AA0200

:  D-aspartic acid (Asp) MOD:01921 , D-aspartic acid (Asn) MOD:01930 , D-serine (Ser) MOD:00202 , D-serine MOD:00891 , D-serine (Cys) MOD:00892 , 2-(L-cystein-S-yl)-D-serine MOD:01987 , D-valine MOD:00705