Re: [ccp4bb] Examples of multiple ASU copies with different conformations

[Robert Esnouf]

If you are including two copies in a single biological complex, then the two 
halves of the reverse transcriptase heterodimer have dramatically different 
domain organizations (OK, one copy is truncated - losing one whole domain out 
of five; PDB codes ad nauseam). Indeed one stretch of sequence at the end of 
domain 4 is extended in one copy and alpha helical in the other.