1fw8
CIRCULARLY PERMUTED PHOSPHOGLYCERATE KINASE FROM YEAST: PGK P72CIRCULARLY PERMUTED PHOSPHOGLYCERATE KINASE FROM YEAST: PGK P72
Structural highlights
Evolutionary Conservation Check, as determined by ConSurfDB. You may read the explanation of the method and the full data available from ConSurf. Publication Abstract from PubMedThe crystallographic structure of a circularly permuted form of yeast PGK, 72p yPGK, has been determined to a resolution of 2.3 A by molecular replacement. In this engineered protein, the C- and N-terminal residues of the wild-type protein are directly connected by a peptide bond and new N- and C-terminal residues are located within the N-terminal domain. The overall fold of the protein is very similar to that of the wild-type protein, directly demonstrating that the continuity of a folding unit is not relevant to the folding process of the whole protein. Only limited structural changes were observed: these were in the regions associated with the new connection, in a long flexible loop in the permuted domain and in the vicinity of Arg38, a functionally important residue. The relative positions of the two domains suggested that this permuted protein adopts one of the most open/twisted conformations seen amongst PGKs of known structure. The effect of the mutation on the functional properties is more easily accounted for by a restriction of hinge-bending motion than by structural changes in the protein. Structure of a circularly permuted phosphoglycerate kinase.,Tougard P, Bizebard T, Ritco-Vonsovici M, Minard P, Desmadril M Acta Crystallogr D Biol Crystallogr. 2002 Dec;58(Pt 12):2018-23. Epub 2002, Nov 23. PMID:12454459[1] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See AlsoReferences |
| ||||||||||||||||||||