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The reactoin of papain with antipapain
Molecular Immunology, 1965Abstract Rabbit antiserum against papain was prepared and found capable of neutralizing the catalytic activity of enzyme. The precipitin reaction yields two peaks, which are shown to correspond to complexes formed between papain and the intact antibody molecules on the one hand, and with papain-damaged antibodies on the other hand.
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The activation of chymotrypsinogen by papain
Canadian Journal of Biochemistry, 1970Papain has been found to activate bovine chymotrypsinogen A. The optimal conditions for the activation are pH 5.0, temperature 23 °C, and enzyme/substrate ratio 1:20. The chymotrypsin obtained by the papain activation has been isolated. A significant difference between this enzyme and α-chymotrypsin is the absence of the three amino acids (Ser, Gly ...
M C, Shaw, T, Kay, T, Viswanatha
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Interaction of Papain with Anti-Papain
The Journal of Biochemistry, 1964Y, OKADA +3 more
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Biochimica et Biophysica Acta (BBA) - Protein Structure, 1970
L A, Sluyterman, M J, de Graaf
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L A, Sluyterman, M J, de Graaf
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The activation reaction of papain
Biochimica et Biophysica Acta (BBA) - Enzymology, 19671. 1. Papain is reversibly inactivated in the presence of air and low concentrations of cysteine. This inactivation is enhanced by Fe2+ and Cu2- and is retarded by EDTA. In the absence of cysteine, active papain (separated from the activators by gel filtration) is inactivated at a much lower rate in an almost irreversible manner. 2. 2.
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