The molten globule state is unusually deformable under mechanical force

Philip J. Elms, John D. Chodera, Carlos Bustamante, and Susan Marqusee.
Proc. Natl. Acad. Sci. USA 109:3796, 2012. [DOI] [PDF]

We measure the physical properties of the molten globule state of apo-myoglobin, and show that it is unusually deformable compared to typical protein native states.