Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
APF03693e7ycvA1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: PF03693ECOD (1.6)
BPF03693e7ycvB1 A: alpha arraysX: HTHH: HTHT: Ribbon-helix-helixF: PF03693ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A, B
PF03693Bacterial antitoxin of ParD toxin-antitoxin type II system and RHH (ParD_antitoxin)Bacterial antitoxin of ParD toxin-antitoxin type II system and RHHParD is the antitoxin of a bacterial toxin-antitoxin gene pair. The cognate toxin is ParE in, Pfam:PF05016. The family contains several related antitoxins from Cyanobacteria, Proteobacteria and Actinobacteria. Antitoxins of this class carry an N-ter ...ParD is the antitoxin of a bacterial toxin-antitoxin gene pair. The cognate toxin is ParE in, Pfam:PF05016. The family contains several related antitoxins from Cyanobacteria, Proteobacteria and Actinobacteria. Antitoxins of this class carry an N-terminal ribbon-helix-helix domain, RHH, that is highly conserved across all type II bacterial antitoxins, which dimerises with the RHH domain of a second VapB molecule. A hinge section follows the RHH, with an additional pair of flexible alpha helices at the C-terminus. This C-terminus is the toxin-binding region of the dimer, and so is specific to the cognate toxin, whereas the RHH domain has the specific function of lying across the RNA-binding groove of the toxin dimer and inactivating the active-site - a more general function of all type II antitoxins.
Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A, B
Antitoxin ParD- -

InterPro: Protein Family Classification InterPro Database Homepage

ChainsAccessionNameType
A, B
IPR022789Antitoxin ParDFamily
A, B
IPR038296Antitoxin ParD superfamilyHomologous Superfamily
A, B
IPR010985Ribbon-helix-helixHomologous Superfamily