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. Author manuscript; available in PMC: 2009 Jun 27.
Published in final edited form as: J Mol Biol. 2008 May 7;380(1):181–192. doi: 10.1016/j.jmb.2008.04.073

Figure 5. Contribution of the disulfide bond to protein stability.

Figure 5

(a) Thermal melts of PAE2072 in the presence and absence of DTT indicate a dramatic loss of protein stability upon reduction of the disulfide bond. (b) Chemical denaturation of wild-type PAE2072 and a C120S mutant also reveal a stabilizing role for the disulfide bond as evidenced by the lower midpoint of denaturation for the mutant lacking the disulfide.