5U4R | pdb_00005u4r

Crystal structure of the broadly neutralizing Influenza A antibody VRC 315 53-1A09 Fab.

External Resource: Annotation


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

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
D [auth L]d5u4rl2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) automated matches (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
D [auth L]d5u4rl1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd5u4rb2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) automated matches (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Bd5u4rb1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
C [auth H]d5u4rh_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) automated matches (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Ad5u4ra_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) automated matches (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
D [auth L]e5u4rL1 A: Cryptochrome/photolyase FAD-binding domain-relatedX: Cryptochrome/photolyase FAD-binding domain-relatedH: Undecaprenyl diphosphate synthaseT: Saf-Nte_pilinF:ECOD (20:10:01)
Be5u4rB1 A: P-loop domains-likeX: Cas7-relatedH: CRISPR-associated protein Cas7f/Csy3T: p450F:ECOD (20:10:01)
C [auth H]e5u4rH1 A: Cryptochrome/photolyase FAD-binding domain-relatedX: Cryptochrome/photolyase FAD-binding domain-relatedH: Undecaprenyl diphosphate synthaseT: Saf-Nte_pilinF:ECOD (20:10:01)
Ae5u4rA1 A: P-loop domains-likeX: Cas7-relatedH: CRISPR-associated protein Cas7f/Csy3T: p450F:ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
D [auth L]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
B2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
C [auth H]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
A2.60.40.10 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
B,
D [auth L]		Fab VRC 315 53-1A09 L-KAPPA Homo sapiens (human) IGKV1-39*01, IGKV1D-39*01, IGKJ1S1*01, IGKJ4*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202609-0)
A,
C [auth H]		Fab VRC 315 53-1A09 VH-CH1 Homo sapiens (human) IGHV3-11*01, IGHV3-11*04, IGHJ6*01, IGHJ6*02, IGHG1*01, IGHG1*02, IGHG1*04, IGHG1*05 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
B,
D [auth L]		Light ChainIGKV1 Kappa-SAbDab (2026-03-13)
A,
C [auth H]		Heavy ChainIGHV3 --SAbDab (2026-03-13)