The allosteric regulation of pyruvate kinase by fructose-1,6-bisphosphate.Jurica, M.S., Mesecar, A., Heath, P.J., Shi, W., Nowak, T., Stoddard, B.L.
(1998) Structure 6: 195-210
- PubMed: 9519410
- DOI: https://doi.org/10.1016/s0969-2126(98)00021-5
- Primary Citation of Related Structures:
- PubMed Abstract:
Yeast pyruvate kinase (PK) catalyzes the final step in glycolysis. The enzyme therefore represents an important control point and is allosterically activated by fructose-1,6-bisphosphate (FBP). In mammals the enzyme is found as four different isozymes with different regulatory properties: two of these isozymes are produced by alternate splicing. The allosteric regulation of PK is directly related to proliferation of certain cell types, as demonstrated by the expression of an allosterically regulated isozyme in tumor cells. A model for the allosteric transition from the inactive (T) state to the active (R) state has been proposed previously, but until now the FBP-binding site had not been identified.
Molecular and Cellular Biology, Program of the University of Washington, Fred Hutchinson Cancer Research Center, Seattle 98104, USA.