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. 1981 Aug;42(2):370–374. doi: 10.1128/aem.42.2.370-374.1981

Effects of Phosphate in Medium on Protein Secretion in a Protein-Producing Bacterium, Bacillus brevis 47

Norihiro Tsukagoshi 1, Hidehiko Yamada 1, Akio Tsuboi 1, Shigezo Udaka 1
PMCID: PMC244015  PMID: 16345836

Abstract

Bacillus brevis 47 secreted up to 1 mg of protein per ml in a chemically defined medium, depending on phosphate concentration. The composition of exoproteins was altered quantitatively by the concentration of external phosphate. Morphologically, B. brevis 47 showed a distinct three-layered cell wall structure and shed the outer two layers during growth.

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Selected References

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