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Random nucleotide substitutions in primate nonfunctional gene for L-gulono-gamma-lactone oxidase, the missing enzyme in L-ascorbic acid biosynthesis.

Biochimica et biophysica acta - 18 Oct 1999

Ohta Y, Nishikimi M

Abstract excerpt

Humans and other primates have no functional gene for L-gulono-gamma-lactone oxidase that catalyzes the last step of L-ascorbic acid biosynthesis. The 164-nucleotide sequence of exon X of the gene was compared among human, chimpanzee, orangutan, and macaque, and it was found that nucleotide substitutions had occurred at random throughout the sequence with a single nucleotide deletion, indicating that the primate...

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PMID: 10572964
DOI: 10.1016/s0304-4165(99)00123-3

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