| Primary Identifier | IPR005250 | Type | Family |
| Short Name | Ribulose_e2b2 |
| description | The delineation of this family was based originally, in part, on a discussion and neighbour-joining phylogenetic study []of archaeal and other proteins homologous to the alpha, beta, and delta subunits of eukaryotic initiation factor 2B (eIF-2B), a five-subunit molecule that catalyses GTP recycling for eIF-2 []. Later, this group of archaeal proteins have been shown to function as ribulose-1,5 bisphosphate isomerases (R15Pi). Thermococcus kodakarensis R15Pi, also known as TK0185, converts d-ribose 1,5-bisphosphate into ribulose 1,5-bisphosphate, providing the substrate for archaeal ribulose-1,5-bisphosphate carboxylase/oxygenases. Its structure has been revealed []. |
