Characterization of ADP-glucose pyrophosphorylase from shrunken-2 and brittle-2 mutants of maize
- 1 August 1976
- journal article
- research article
- Published by Springer Nature in Biochemical Genetics
- Vol. 14 (7-8) , 547-560
- https://doi.org/10.1007/bf00485834
Abstract
Electrophoretic characterization of adenosine diphosphate glucose pyrophosphorylase from the developing endosperms of nine shrunken-2 and four brittle-2 mutants revealed that (1) all mutants had low but detectable levels of activity, (2) mutation at either locus decreased activity of pyrophosphorylases A and B, and (3) differences in mobility were not found. However, pyrophosphorylase B extracted from several shrunken-2 and brittle-2 mutants differed from normal in extent of urea denaturation, K m (glucose-1-phosphate) or type of glucose-1-phosphate saturation kinetics. Pyrophosphorylase B from sh2-m (association of Dissociation with the sh2 locus) appears to differ from normal in K m (glucose-1-phosphate).This publication has 23 references indexed in Scilit:
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