| Primary Identifier | IPR036386 | Type | Homologous_superfamily |
| Short Name | HscB_C_sf |
| description | This superfamily represents the C-terminal oligomerisation domain found in HscB (heat shock cognate protein B), which is also known as HSC20 (20K heat shock cognate protein) and J-protein Jac1 in yeast mitochondria []. HscB acts as a co-chaperone to regulate the ATPase activity and peptide-binding specificity of the molecular chaperone HscA, also known as HSC66 (HSP70 class). HscB proteins contain two domains, an N-terminal J-domain, which is involved in interactions with HscA, connected by a short loop to the C-terminal oligomerisation domain; the two domains make contact through a hydrophobic interface. The core of the oligomerisation domain is thought to bind and target proteins to HscA and consists of an open, three-helical bundle []. HscB, along with HscA, has been shown to play a role in the biogenesis of iron-sulphur proteins. |
