Homology modeling of protein structures as a function of sequence breaks down at the twilight zone limit of sequence identity between the template and target proteins. Our results suggest that protein sequences that have diverged from a common ancestor beyond the twilight zone may adopt side chain interactions that are very different from those endowed by the ancestral sequence.
机构:
Georgia Tech, Film & Media Studies, Atlanta, GA 30332 USA
Georgia Tech, Sch Literature Commun & Culture, Atlanta, GA USAGeorgia Tech, Film & Media Studies, Atlanta, GA 30332 USA