3GIZ | pdb_00003giz

Crystal structure of the Fab fragment of anti-CD20 antibody Ofatumumab


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
A [auth L]e3gizL1 A: HTHX: HTHH: tetra-helical, lambda repressor-likeT: RasF:ECOD (20:10:01)
B [auth H]e3gizH1 A: Alpha-beta plaitsX: Nucleotide-diphospho-sugar transferasesH: Glyoxalase/Bleomycin resistance protein/Dihydroxybiphenyl dioxygenaseT: TetR_NF: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 (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]Human 2F2 neutralizing mAb, anti-CD20 L-KAPPA Homo sapiens (human) IGKV3-11*01, IGKJ5*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202609-0)
B [auth H]Human 2F2 neutralizing mAb, anti-CD20 VH-CH1 Homo sapiens (human) IGHV3-9*01, IGHJ6*01, IGHJ6*02, IGHG1*01, IGHG1*02, IGHG1*04 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]Light ChainIGKV3 Kappa-SAbDab (2026-03-13)
B [auth H]Heavy ChainIGHV3 --SAbDab (2026-03-13)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

ChainNameTargetProvenance Source
A [auth L] Ofatumumab MS4A1/CD20Therapeutic SAbDab (2026-03-13)
B [auth H] Ofatumumab MS4A1/CD20Therapeutic SAbDab (2026-03-13)