Abstract
The pepC gene of Listeria monocytogenes encodes aminopeptidase C that is predicted to share 72% amino acid sequence similarity and 53% sequence identity with the cysteine aminopeptidase PepC from Lactococcus lactis. The gene product also shows strong similarity to aminopeptidase C from Streptococcus thermophilus and Lactobacillus helveticus, and to a cysteine proteinase/bleomycin hydrolase from Saccharomyces cerevisiae. The enzyme from L. monocytogenes displayed broad N-terminal hydrolytic activity, with a similar substrate specificity to its lactic acid bacterial counterpart. The inhibition spectrum shows a great deal of similarity with enzymes from the family of lactic acid bacteria. In addition, one of the clones studied contained DNA sequences that could encode a regulatory protein of the deoR helix-turn-helix DNA binding protein family. The organization of the locus, designated pep, is presented along with the characterization of the gene products of the pep locus.
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Winters, D.K., Mack Ivey, D., Maloney, T.P. et al. Characterization by molecular cloning and sequencing of the gene encoding an aminopeptidase from Listeria monocytogenes. Antonie Van Leeuwenhoek 78, 141–151 (2000). https://doi.org/10.1023/A:1026549118087
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DOI: https://doi.org/10.1023/A:1026549118087