Summary
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1.
The molecular weights of kallikreins of rat intestine and rat plasma have been estimated using gel filtration.
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2.
Extracts of pooled tissue from rat jejunum, ileum, caecum and colon activated by autolytic processes gave a single peak of kallikrein activity with a molecular weight of 33 000.
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3.
Acid-activated rat plasma gave two peaks of kallikrein activity with molecular weights of 125000 and 61 500.
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4.
Rat intestinal tissue contains a kinin forming enzyme having a molecular weight similar to those of glandular kallikreins and different from those of the rat plasma kallikreins.
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Zeitlin, I.J., Singh, Y.N., Lembeck, F. et al. The molecular weights of plasma and intestinal kallikreins in rats. Naunyn-Schmiedeberg's Arch. Pharmacol. 293, 159–161 (1976). https://doi.org/10.1007/BF00499221
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DOI: https://doi.org/10.1007/BF00499221