The midgut trypsins of shrimp (Penaeus monodon). High efficiency toward native protein substrates including collagens.

@article{Lu1990TheMT,
  title={The midgut trypsins of shrimp (Penaeus monodon). High efficiency toward native protein substrates including collagens.},
  author={Ping Jung Lu and Haijun Liu and I. H. Tsai},
  journal={Biological chemistry Hoppe-Seyler},
  year={1990},
  volume={371 9},
  pages={
          851-9
        }
}
Two shrimp trypsins have been purified from the midguts of Penaeid shrimps by various chromatographies and HPLC. The molecular masses of them are 27 and 29 kDa, respectively. They show the typical specificity of trypsin for substrates and inhibitors, and their N-terminal amino-acid sequences are homologous to those of other trypsins. The shrimp enzymes are very acidic (pI less than or equal to 2.4), and show distinctively low Km for the synthetic amide substrates. They also hydrolyse various… CONTINUE READING
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