6PYC | pdb_00006pyc

Structure of kappa-on-heavy (KoH) antibody Fab bound to the cardiac hormone marinobufagenin

External Resource: Annotation


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
D [auth B]e6pycB1 A: Nat/IvyX: Acyl-CoA N-acyltransferases (Nat)H: Acyl-CoA N-acyltransferases (Nat)T:F:ECOD (20:10:01)
C [auth A]e6pycA1 A: Nat/IvyX: Acyl-CoA N-acyltransferases (Nat)H: Acyl-CoA N-acyltransferases (Nat)T:F:ECOD (20:10:01)
B [auth L]e6pycL1 A: Nat/IvyX: Acyl-CoA N-acyltransferases (Nat)H: Acyl-CoA N-acyltransferases (Nat)T:F:ECOD (20:10:01)
A [auth H]e6pycH1 A: Nat/IvyX: Acyl-CoA N-acyltransferases (Nat)H: Acyl-CoA N-acyltransferases (Nat)T:F:ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
D [auth B]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 L]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (utative)
A [auth H]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
D [auth B]Antibody Fab Fragment L-KAPPA Mus musculus (house mouse) IGKV6-32*01, IGKJ1*01, IGKC*01, IGKC*02 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202609-0)
C [auth A]Antibody Fab Fragment VH-CH1 Mus musculus (house mouse) IGHV4-1*02, IGHJ3*01, IGHG1*02 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202609-0)
B [auth L]Fab KoH (kappa-on-heavy), anti-marinobufagenin L-KAPPA Homo sapiens (human) IGKV3-20*01, IGKJ2*02, IGKJ2*04, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG [V-KAPPA-CH1]_[L-KAPPA] IMGT (202609-0)
A [auth H]Fab KoH (kappa-on-heavy), anti-marinobufagenin V-KAPPA-CH1 Homo sapiens (human) IGKV4-1*01, IGKJ1*01, IGHG4*01, IGHG4*04 V-DOMAIN V-KAPPA, C-DOMAIN CH1 IG [V-KAPPA-CH1]_[L-KAPPA] IMGT (202609-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
D [auth B]Light ChainIGKV6 Kappa-SAbDab (2026-03-13)
C [auth A]Heavy ChainIGHV4 --SAbDab (2026-03-13)
B [auth L]Light ChainIGKV3 Kappa(3beta,5beta,14alpha,15beta)-3,5-dihydroxy-14,15-epoxybufa-20,22-dienolideSAbDab (2026-03-13)
A [auth H]Light ChainIGKV4 Kappa(3beta,5beta,14alpha,15beta)-3,5-dihydroxy-14,15-epoxybufa-20,22-dienolideSAbDab (2026-03-13)