Explain about thiol proteases, Biology

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Explain about thiol proteases

Group of  thiol proteases, similar in structure to each other, are found in plants. These include  papain from the papaya fruit and  ficain from figs. Other thiol proteases, of different structures are found in bacteria and mammalian lysosomes. The essential cysteine residue in each of these enzymes plays a similar role to that of serine in the serine proteases.

 


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