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A rennin-sensitive bond in αs1 Β-casein

  • R. D. Hill (a1), E. Lahav (a2) and D. Givol (a3)

Summary

Rennin acts on a specially sensitive bond in αs1 B-casein to produce a basic peptide containing residues 1–23 of the original protein. At pH 6·4 and 30°C, the action is specific and rapid, the kinetic constants being Km 4·5×10−4M, Kcat 3·8 s−1, and kcat/Km 0·85×104 s−1 M−1. Pepsin, and a protease impurity in the acid phosphatase from wheat germ, have a similar action.

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Journal of Dairy Research
  • ISSN: 0022-0299
  • EISSN: 1469-7629
  • URL: /core/journals/journal-of-dairy-research
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