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  • Title: The alpha-lytic protease gene of Lysobacter enzymogenes. The nucleotide sequence predicts a large prepro-peptide with homology to pro-peptides of other chymotrypsin-like enzymes.
    Author: Epstein DM, Wensink PC.
    Journal: J Biol Chem; 1988 Nov 15; 263(32):16586-90. PubMed ID: 3053694.
    Abstract:
    alpha-Lytic protease is a 19.8-kDa protein secreted from the Gram-negative bacterium Lysobacter enzymogenes. We have cloned and sequenced the gene for this serine protease. The nucleotide sequence contains an open reading frame which codes for the 198-residue mature enzyme and a potential prepro-peptide, also of 198 residues. The COOH-terminal 49 residues of the pro-peptide are significantly homologous to the propeptides of Streptomyces griseus proteases A and B. We suggest that this pro-peptide region facilitates formation of the active enzyme. A region bridging the NH2-terminal pre- and pro-peptides is homologous to a maize inhibitor of serine proteases. We speculate that this region inhibits enzymatic activity of the prepro-enzyme.
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