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Biochem Biophys Res Commun. 1992 Mar 31;183(3):1159-66.

Nucleotide and predicted amino acid sequence of a cDNA clone encoding part of human transketolase.

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Department of Biochemistry, University of Queensland, Brisbane, Australia.


Transketolase is a key enzyme in the pentose-phosphate pathway which has been implicated in the latent human genetic disease, Wernicke-Korsakoff syndrome. Here we report the cloning and partial characterisation of the coding sequences encoding human transketolase from a human brain cDNA library. The library was screened with oligonucleotide probes based on the amino acid sequence of proteolytic fragments of the purified protein. Northern blots showed that the transketolase mRNA is approximately 2.2 kb, close to the minimum expected, of which approximately 60% was represented in the largest cDNA clone. Sequence analysis of the transketolase coding sequences reveals a number of homologies with related enzymes from other species.

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