cold denaturation

[DALE KENDRICK SHUMAKER]

I was wondering whether someone could give me a good description of how
proteins can cold denature.  Specifically I am wondering how a protein
that is not involved in self assembly of fibers, polymers, or other 
supermolecular structures can cold denature.  Note, I am not refering to 
actually freezing the protein but just holding the protein at a cold 
temperature above 0 Celsius.

Thank you for your help.

Dale