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Comparative Study
. 1977;36(11-12):1509-13.

Intracellular proteinase of Bacillus subtilis

V M Stepanov, A Y Strongin, L S Isotova, Z T Abramov
  • PMID: 99934
Comparative Study

Intracellular proteinase of Bacillus subtilis

V M Stepanov et al. Acta Biol Med Ger. 1977.

Abstract

An intracellular serine proteinase was isolated from Bacillus subtilis, strain A-50. The molecular weight of the enzyme is 30000 +/- 1000, its amino acid composition is enriched in glutamic acid residues, the isoelectric point is 4.3, the N-terminal sequence Glu-Leu-Pro-Glu-Gly-Ile-Gln-Val-Ile-Lys-Ala-Pro-Glu-Leu-Xxx-Ala-Gln-Gly-Phe-Lys Gly-Ser-Asx-Ile-Lys-Ile-Ala-Val-Leu-Asx. The enzyme is structuraly homologous with secretory subtilisins.

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