On 6/22/13 10:17 PM, Francesco Pietra wrote:
Modeling a trimer (all three chains present, though missing residues and atoms) with chimera and modeller installed locally.
The default is modeling each chain, one at a time. The chains are identical in sequence but the X-ray structure shows different localized conformations. Question: is modeller modeling by taking the other two chains into account?
The Modeller mailing list would be more appropriate for such a question (unless it's specific to the Chimera Modeller interface). If you want to model a trimer using a trimer template, you don't need to do anything special (just include the entire sequence of each trimer, with '/' chain break characters where appropriate). Modeller will consider all interatomic distances. (If the Chimera Modeller interface isn't doing this, the Chimera people may want to comment further.) If you want Modeller to model (e.g.) chain A using structural information from each of chains A, B, and C, that's just multiple template modeling (using A, B, and C as templates for A). Ben -- ben@salilab.org http://salilab.org/~ben/ "It is a capital mistake to theorize before one has data." - Sir Arthur Conan Doyle