EINECS 编号 232-580-8
MDL number MFCD00130801
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Plant cysteine proteinase that is similar in function to lysosomal cathepsin L.
The enzyme cleaves amide linkages at the carboxyl side of arginine, leucine, glutamic acid, and alanine residues; as well as that of arginine esters. The optimum pH varies depending on the kind of substrate. For example, the pH optimum for casein digestion is 7.9, hemoglobin digestion is 4.0 and urea-denatured hemoglobin digestion is 7.0. Molecular mass of the enzyme is found to be 27 KDa.
Contains
250, 1000 units in glass bottle
色谱纯化产品
One unit will hydrolyze 1.0 μmole of BAEE to Nα-benzoyl-
Chymopapain from papaya latex has been used in a study to assess the anthelmintic effect of natural plant cysteine proteinases against the gastrointestinal nematode, Heligmosomoides. Chymopapain from papaya latex has also been used in a study to investigate the preparation and identification of the rabbit′s antibody of chymopapain.
The enzyme has been used to detach cultured CD34+ cells from beads (130 units/mL for 2 minutes, repeated three times). Chymopapain and pronase have been found to be effective in the digestion of human intestinal tissue. The enzyme has been used along with pronase, collagenase, elastase, DNAse, and catalase for rabbit lung cells digestion at a concentration of 0.05% in calcium-magnesium-free Kreb′s serum substitute. It has also been used for the release of neuroblastoma cells from marrow bound to antibody-coated microspheres.
form | lyophilized powder |
composition | Protein, ≥75% E |
solubility | H2O: soluble5.0 mg/mL, clear, colorless |
storage temp. | ?20°C |
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