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1: FEBS Lett. 1991 Sep 23;290(1-2):61-4.Click here to read Links

Cloning of the D-lactate dehydrogenase gene from Lactobacillus delbrueckii subsp. bulgaricus by complementation in Escherichia coli.

Laboratoire de Génétique Moléculaire, Université Catholique de Louvain, Louvain-la Neuve, Belgium.

A strain of Escherichia coli (FMJ144) deficient for pyruvate formate lyase and lactate dehydrogenase (LDH) was complemented with a genomic DNA library from Lactobacillus delbrueckii subsp. bulgaricus. One positive cloned showed LDH activity and production of D(-)lactate was demonstrated. The nucleotide sequence of the D-LDH gene (ldhA) revealed the spontaneous insertion of an E. coli insertion sequence IS2 upstream of the gene coding region. The open reading frame encoded a 333-amino acid protein, showing no similarity with known L-LDH sequences but closely related to L. casei D-hydroxyisocaproate dehydrogenase (D-HicDH).

PMID: 1915894 [PubMed - indexed for MEDLINE]