Question

5) What would happen when you place a protein with adjacent cysteines in an oxidizing environment? Draw the structure. What would happen when you return these same two cysteines to a reducing environment? Are the environments 1) inside, and 2) outside a cell typically oxidizing or reducing environments?

Answer 1

Reducing would mean there is a lack of electron accepting molecules and an excess of electron donors.

An oxidizing would be an increase of electron accepting molecules and less electron donating molecules (or ions) thus cystiene would look like this


Inside a cell is a reducing environment and outside is an oxidizing environment
am I right?