Functional consequences of mutation of highly conserved serine residues, found at equivalent positions in the N- and C-terminal domains of mammalian hexokinases.

Abstract excerpt

Despite the extensive sequence similarity between the N- and C-terminal halves of the 100-kDa molecular weight mammalian hexokinases (ATP:D-hexose 6-phosphotransferase, EC 2.7.1.1), reflecting their evolutionary origin by duplication and fusion of a gene coding for a smaller ancestral hexokinase, there is evidence for a functional division, with the C-terminal domain retaining a catalytic role while the...

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