Cloning and sequencing of a serine proteinase gene from a thermophilic Bacillus species and its expression in Escherichia coli.
Maciver B, McHale RH, Saul DJ, Bergquist PL. Cloning and sequencing of a serine proteinase gene from a thermophilic Bacillus species and its expression in Escherichia coli. Appl Environ Microbiol. 1994 Nov; 60(11):3981-8.