3.4.22.6: chymopapain

This is an abbreviated version, for detailed information about chymopapain, go to the full flat file.

Reaction

Similar to that of papain =

Synonyms

Chymopapain, chymopapain A, chymopapain B, chymopapain isoform II, chymopapain isoform III, chymopapain isoform IV, Chymopapain S, EC 3.4.4.11, More, papaya proteinase II, PPII

ECTree

     3 Hydrolases
         3.4 Acting on peptide bonds (peptidases)
             3.4.22 Cysteine endopeptidases
                3.4.22.6 chymopapain

pH Stability

pH Stability on EC 3.4.22.6 - chymopapain

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pH STABILITY
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
1
-
at low pH, the enzyme undergoes a conformational transition that instantaneously converts their native form into molten globule that are quite unstable and rapidly degraded by pepsin. The denatured state of these proteinase which results from acid treatment is completely irreversible
667431
1.5
-
protein unfolds following biphasic kinetics. Two different effects of electrolyte concentration on unfolding reaction are observed. At low ionic strength, the ionic atmosphere causes an increase in reaction rates, regardless of the type of ions being present. This effect is attributed to a general electrostatic screening of charge-charge interactions in the macromolecule. At high ionic strength, each electrolyte exerts a distinctly different effect: both rate constants are largely increased by guanidinium-HCl but slightly by LiCl. Na2SO4 decreases the value of both unfolding rates
678400
2 - 3
-
enzyme undergoes conformational transition that instantaneously converts the native form into a molten globule state and is completely irreversible
667431
2
-
stable
81563