[brasarehot]

"Cysteine proteases have a common catalytic mechanism that involves a nucleophilic cysteine thiol in a catalytic dyad. Below is the catalytic dyad of cysteine proteases. Propose a catalytic mechanism of this enzyme."
And I'm given a picture of Cysteine R group coming from a catalytic pocket and a Hisitidine R group coming from a catalytic pocket.
*Note: I am NOT a chemist, so please give me a very specific answer. DO NOT give me a general simplistic sentence where you assume I know what you know and can understand your answer. PLEASE be as specific as possible. I really appreciate the help.

[Arkcon]

You've made 30 posts on this forum, so you should know by now -- we don't give complete answers to any problem.  We give hints to help you learn, based on what you already know.  It is flat out INSULTING, to yell at us by typing in ALL CAPS, saying that the Forum Rules, posted in Red at the top of every forum page, just don't apply to you this time.

*ahem*

The hint that this problem gives you shows the cysteine and histidine R-groups.  If there are atoms from the rest of the molecules pictured, they may also be important.  Pretending this is a reaction just between cysteine and histidine, do you know how a reaction might proceed.  Maybe if you drew it out for yourself (and us,) some mechanism would suggest itself.  Think for example -- what do we start with, what do you get, what atoms change in the process.