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Mol Gen Genet. 1987 Oct;209(3):563-9.

The molecular organization of the lysostaphin gene and its sequences repeated in tandem.

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  • 1Institut für Biochemie der Universität München, Federal Republic of Germany.


The gene encoding lysostaphin of Staphylococcus staphylolyticus was cloned in Escherichia coli and its DNA sequence was determined. The complete coding region comprises 1440 base pairs corresponding to a precursor of 480 amino acids (molecular weight 51 669). It was shown by NH2-terminal amino acid sequence analysis of the purified extracellular lysostaphin from S. staphylolyticus that the mature lysostaphin consists of 246 amino acid residues (molecular weight 26926). Polyacrylamide gel electrophoresis revealed a similar molecular weight for the most active form. By computer analysis the secondary protein structure was predicted. It revealed three distinct regions in the precursor protein: a typical signal peptide (ca. 38 aa), a hydrophilic and highly ordered protein domain with 14 repetitive sequences (296 aa) and the hydrophobic mature lysostaphin. The lysostaphin precursor protein appears to be organized as a preprolysostaphin.

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