[ccp4bb] two identical proteins in one asymmetric unit

[Sang Hoon Joo]

I am refining my crystal structure in which I have two identical
chains in one asymmetric unit.
Space group is H32 and each chain yields me a biological trimer as expected.
The problem is, do I have to assume they are identical, or they are
really different.
After each cycle of refinement, if I try to align two molecules I get
~ 0.17 RMSD.
-- 
Sang Hoon Joo, PhD
Postdoctoral Associate
Duke University
239 Nanaline H. Duke
Box 3711, DUMC
Durham, NC 27710