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FEMS Microbiol Lett. 1994 Nov 15;124(1):29-34.

Cloning and sequencing of phospholipase B gene from the yeast Torulaspora delbrueckii.

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Department of Biological Resources, Faculty of Agriculture, Ehime University, Japan.


The extracellular phospholipase B gene from baker's yeast Torulaspora delbrueckii was cloned and sequenced. Analysis of DNA sequence data revealed an open reading frame (ORF) encoding a 649-amino acid protein, that included amino acid sequences obtained from the purified enzyme. Comparison of these sequence data with the N-terminal amino acid sequence of the enzyme indicated that this secreted protein is synthesized as a large precursor with a 21-amino acid N-terminal extension to the mature enzyme of 628 amino acids. A homology search was carried out between phospholipase B from T. delbrueckii and Penicillium notatum. The deduced amino acid sequence of the cloned phospholipase B was homologous (about 50% identity) to phospholipase B from P. notatum, and contained six conserved regions. The transcriptional level of mRNA of the phospholipase B gene was higher in the cells from early exponential and stationary phases.

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