Patent ID: 6809235
Filing Date: 2004-10-26
Classification: C12N,C12Y

Abstract:
A purified polynucleotide comprising a nucleotide sequence encoding a full-length mutant polypeptide of maize ADP-glucose pyrophosphorylase large subunit, or a fragment of said full-length mutant polypeptide, wherein said full-length mutant polypeptide or said fragment of said full-length mutant polypeptide comprises an amino acid mutation in the amino acid sequence of said maize ADP-glucose pyrophosphorylase large subunit, and wherein when said full-length mutant polypeptide or said fragment of said full-length mutant polypeptide is expressed to form a mutant ADP-glucose pyrophosphorylase enzyme, said mutant enzyme exhibits increased heat stability relative to the wild type ADP-glucose pyrophosphorylase enzyme.