6TCO | pdb_00006tco

Crystal structure of the omalizumab Fab Leu158Pro light chain mutant - crystal form I

External Resource: Annotation


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

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
A [auth L]d6tcol2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
A [auth L]d6tcol1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
C [auth A]d6tcoa2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
C [auth A]d6tcoa1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
B [auth H]d6tcoh_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
D [auth B]d6tcob_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) automated matches Human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
A [auth L]e6tcoL1 A: Family A G protein-coupled receptor-likeX: Family A G protein-coupled receptor-likeH: Family A G protein-coupled receptor-likeT: 7tm_2F:ECOD (20:10:01)
C [auth A]e6tcoA1 A: Family A G protein-coupled receptor-likeX: Family A G protein-coupled receptor-likeH: Family A G protein-coupled receptor-likeT: 7tm_2F:ECOD (20:10:01)
B [auth H]e6tcoH1 A: Family A G protein-coupled receptor-likeX: Family A G protein-coupled receptor-likeH: Family A G protein-coupled receptor-likeT: 7tm_2F:ECOD (20:10:01)
D [auth B]e6tcoB1 A: Family A G protein-coupled receptor-likeX: Family A G protein-coupled receptor-likeH: Family A G protein-coupled receptor-likeT: 7tm_2F:ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

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

IMGT Antibody Annotation IMGT Database Homepage

ChainProtein NameDescriptionOrganism NameGene Allele Name(s)Domain Name(s)Receptor TypeReceptor DescriptionProvenance Source
A [auth L],
C [auth A]		Fab omalizumab mutant L158P, anti-IgE L-KAPPA Homo sapiens (human) IGKV1-39*01, IGKV1D-39*01, IGKJ1*01, IGKJ2*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202609-0)
B [auth H],
D [auth B]		Fab omalizumab mutant L158P, anti-IgE VH-CH1 Homo sapiens (human) IGHV3-66*01, IGHV3-66*02, IGHV3-66*04, IGHJ3*01, IGHG1*01, IGHG1*02, IGHG1*04, IGHG1*05, IGHG1*12, IGHG1*14, IGHG1*13, IGHG1*09, IGHG1*10, IGHG1*07, IGHG1*11 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202609-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
A [auth L],
C [auth A]		Light ChainIGKV1 Kappa-SAbDab (2026-03-13)
B [auth H],
D [auth B]		Heavy ChainIGHV3 --SAbDab (2026-03-13)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

ChainNameTargetProvenance Source
A [auth L],
C [auth A]		 Omalizumab IGHETherapeutic SAbDab (2026-03-13)
B [auth H],
D [auth B]		 Omalizumab IGHETherapeutic SAbDab (2026-03-13)