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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Isolation, sequence and overexpression of the gene encoding NAD-dependent formate dehydrogenase from the methylotrophic yeast Candida methylica.

NAD-dependent formate dehydrogenase ( FDH) was isolated from Candida methylica (Cm) grown on 0.5% methanol. Its N-terminal amino acid (aa) sequence was determined, as was that of a commercial FDH from Candida boidinii. Degenerate oligodeoxyribonucleotides were made to the 5' region of the fdh gene from Cm using this information and to the 3' region using C-terminal aa sequence data from the methylotropic yeast, Hansenula polymorpha. An almost complete 1.1-kb fragment was amplified from Cm genomic DNA via the polymerase chain reaction (PCR). This fragment was cloned, sequenced and used to probe a Southern blot, from which a 3.4-kb EcoRI fragment containing the fdh open reading frame (ORF) was isolated. The complete nucleotide sequence of this fdh ORF was determined and corresponds to a protein of 364 aa (40,343 Da). The ORF of fdh was cloned into pKK223-3 using PCR and transformed into Escherichia coli. Enzymatically active FDH was produced to 15% of soluble E. coli protein. The deduced aa sequence of this FDH is compared to the aa sequences of four known FDH, from bacteria, yeast, fungi and plant mitochondria.[1]

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