9PAV | pdb_00009pav

Antibody (1B2) Bound Rifamycin Synthetase Module 1 in the Elongation Mode

External Resource: Annotation


SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
A [auth H],
C [auth G]		Heavy ChainIGHV3 -6-deoxyerythronolide-b synthaseSAbDab (2025-12-19)
B [auth L],
D [auth I]		Light ChainIGKV2 Kappa6-deoxyerythronolide-b synthaseSAbDab (2025-12-19)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
E [auth A],
F [auth B]		PF02801Beta-ketoacyl synthase, C-terminal domain (Ketoacyl-synt_C)Beta-ketoacyl synthase, C-terminal domainThe structure of beta-ketoacyl synthase is similar to that of the thiolase family (Pfam:PF00108) and also chalcone synthase. The active site of beta-ketoacyl synthase is located between the N and C-terminal domains. Domain
E [auth A],
F [auth B]		PF21089Polyketide synthase dehydratase domain (PKS_DH_N)Polyketide synthase dehydratase domainThis domain is part of a dehydratase domain found in diverse PKS enzymes. This domain adopts a HotDog fold. Domain
E [auth A],
F [auth B]		PF00109Beta-ketoacyl synthase, N-terminal domain (ketoacyl-synt)Beta-ketoacyl synthase, N-terminal domainThe structure of beta-ketoacyl synthase is similar to that of the thiolase family (Pfam:PF00108) and also chalcone synthase. The active site of beta-ketoacyl synthase is located between the N and C-terminal domains. The N-terminal domain contains m ...The structure of beta-ketoacyl synthase is similar to that of the thiolase family (Pfam:PF00108) and also chalcone synthase. The active site of beta-ketoacyl synthase is located between the N and C-terminal domains. The N-terminal domain contains most of the structures involved in dimer formation and also the active site cysteine [1].
Domain
E [auth A],
F [auth B]		PF16197Ketoacyl-synthetase C-terminal extension (KAsynt_C_assoc)Ketoacyl-synthetase C-terminal extension- Family
E [auth A],
F [auth B]		PF08659KR domain (KR)KR domain- Family
E [auth A],
F [auth B]		PF00698Acyl transferase domain (Acyl_transf_1)Acyl transferase domainDomain
G [auth C]PF00550Phosphopantetheine attachment site (PP-binding)Phosphopantetheine attachment siteA 4'-phosphopantetheine prosthetic group is attached through a serine. This prosthetic group acts as a a 'swinging arm' for the attachment of activated fatty acid and amino-acid groups. This domain forms a four helix bundle. This family includes memb ...A 4'-phosphopantetheine prosthetic group is attached through a serine. This prosthetic group acts as a a 'swinging arm' for the attachment of activated fatty acid and amino-acid groups. This domain forms a four helix bundle. This family includes members not included in Prosite. The inclusion of these members is supported by sequence analysis and functional evidence. The related domain of Swiss:P19828 has the attachment serine replaced by an alanine.
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth H],
C [auth G]		Antibody Fragment 1B2 Heavy Chain---
B [auth L],
D [auth I]		Antibody Fragment 1B2 Light Chain---
E [auth A],
F [auth B]		6-deoxyerythronolide-B synthase -
G [auth C]6-deoxyerythronolide-B synthase -

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
E [auth A],
F [auth B]		IPR016035Acyl transferase/acyl hydrolase/lysophospholipaseHomologous Superfamily
E [auth A],
F [auth B]		IPR014031Beta-ketoacyl synthase, C-terminalDomain
E [auth A],
F [auth B]		IPR006162Phosphopantetheine attachment sitePTM
E [auth A],
F [auth B]		IPR057326Ketoreductase domainDomain
E [auth A],
F [auth B]		IPR049552Polyketide synthase, dehydratase domain, N-terminalDomain
E [auth A],
F [auth B]		IPR020845AMP-binding, conserved siteConserved Site
E [auth A],
F [auth B]		IPR016036Malonyl-CoA ACP transacylase, ACP-bindingHomologous Superfamily
E [auth A],
F [auth B]		IPR050091Polyketide and Nonribosomal Peptide Biosynthesis EnzymesFamily
E [auth A],
F [auth B]		IPR020841Polyketide synthase, beta-ketoacyl synthase domainDomain
E [auth A],
F [auth B]		IPR020807Polyketide/metazoan fatty acid synthase-like, dehydratase domainDomain
E [auth A],
F [auth B]		IPR036736ACP-like superfamilyHomologous Superfamily
E [auth A],
F [auth B]		IPR014043Acyl transferase domainDomain
E [auth A],
F [auth B]		IPR025110AMP-binding enzyme, C-terminal domainDomain
E [auth A],
F [auth B]		IPR041618Polyketide synthase dimerisation element domainDomain
E [auth A],
F [auth B]		IPR032821Polyketide synthase, C-terminal extensionDomain
E [auth A],
F [auth B]		IPR009081Phosphopantetheine binding ACP domainDomain
E [auth A],
F [auth B]		IPR020806Polyketide synthase-like, phosphopantetheine-binding domainDomain
E [auth A],
F [auth B]		IPR013968Polyketide synthase-like, ketoreductase domainDomain
E [auth A],
F [auth B]		IPR016039Thiolase-likeHomologous Superfamily
E [auth A],
F [auth B]		IPR001227Acyl transferase domain superfamilyHomologous Superfamily
E [auth A],
F [auth B]		IPR045851AMP-binding enzyme, C-terminal domain superfamilyHomologous Superfamily
E [auth A],
F [auth B]		IPR042099ANL, N-terminal domainHomologous Superfamily
E [auth A],
F [auth B]		IPR036291NAD(P)-binding domain superfamilyHomologous Superfamily
E [auth A],
F [auth B]		IPR018201Beta-ketoacyl synthase, active siteActive Site
E [auth A],
F [auth B]		IPR014030Beta-ketoacyl synthase-like, N-terminalDomain
E [auth A],
F [auth B]		IPR000873AMP-dependent synthetase/ligase domainDomain
E [auth A],
F [auth B]		IPR042104Polyketide synthase, dehydratase domain superfamilyHomologous Superfamily
G [auth C]IPR016035Acyl transferase/acyl hydrolase/lysophospholipaseHomologous Superfamily
G [auth C]IPR014031Beta-ketoacyl synthase, C-terminalDomain
G [auth C]IPR006162Phosphopantetheine attachment sitePTM
G [auth C]IPR057326Ketoreductase domainDomain
G [auth C]IPR049552Polyketide synthase, dehydratase domain, N-terminalDomain
G [auth C]IPR020845AMP-binding, conserved siteConserved Site
G [auth C]IPR016036Malonyl-CoA ACP transacylase, ACP-bindingHomologous Superfamily
G [auth C]IPR050091Polyketide and Nonribosomal Peptide Biosynthesis EnzymesFamily
G [auth C]IPR020841Polyketide synthase, beta-ketoacyl synthase domainDomain
G [auth C]IPR020807Polyketide/metazoan fatty acid synthase-like, dehydratase domainDomain
G [auth C]IPR036736ACP-like superfamilyHomologous Superfamily
G [auth C]IPR014043Acyl transferase domainDomain
G [auth C]IPR025110AMP-binding enzyme, C-terminal domainDomain
G [auth C]IPR041618Polyketide synthase dimerisation element domainDomain
G [auth C]IPR032821Polyketide synthase, C-terminal extensionDomain
G [auth C]IPR009081Phosphopantetheine binding ACP domainDomain
G [auth C]IPR020806Polyketide synthase-like, phosphopantetheine-binding domainDomain
G [auth C]IPR013968Polyketide synthase-like, ketoreductase domainDomain
G [auth C]IPR016039Thiolase-likeHomologous Superfamily
G [auth C]IPR001227Acyl transferase domain superfamilyHomologous Superfamily
G [auth C]IPR045851AMP-binding enzyme, C-terminal domain superfamilyHomologous Superfamily
G [auth C]IPR042099ANL, N-terminal domainHomologous Superfamily
G [auth C]IPR036291NAD(P)-binding domain superfamilyHomologous Superfamily
G [auth C]IPR018201Beta-ketoacyl synthase, active siteActive Site
G [auth C]IPR014030Beta-ketoacyl synthase-like, N-terminalDomain
G [auth C]IPR000873AMP-dependent synthetase/ligase domainDomain
G [auth C]IPR042104Polyketide synthase, dehydratase domain superfamilyHomologous Superfamily