And the resolution of your data is... ? On Mon, 2012-03-26 at 19:58 +0100, Alok Shenoy wrote: > Hello, > > I'm working on a structure using coot, and I have a peculiar problem. > Searching www didn't quite provide me with an answer, hence requesting more > knowledgeable users for some help. > > Background: > The structure has 2 chains, Chain A and Chain B. Chain B has all the residues > that should be present according to our sequence, and the numbering on both > chains are complete. > > Problem: > 1) Chain A has a couple of residues missing. The numbering shows 231 232 234. > Clearly marking out the spot where the residue is missing. Sequence shows > that there is an aspartic acid missing in position 233. Problem is - both 232 > and 234 are connected quite normally, inserting a terminal residue at 232 > (alanine at first) results in absolutely weird connections. Deleting specific > atoms in the backbone on the protein at that position (between 232 and 234) > don't quite help either - as that results in 234 missing a peptide bond. > > 2) At some points, there is no backbone -by which I mean - lets say residue > 100 and 101 side chains are showing up (and have appropriate electron > density). What is missing is the peptide bond that connects these two > residues (again - electron density for the backbone is present). Is there a > way to fix this? > > Can someone walk me through the solution to this problems? > > > Thank You, > > Alok Shenoy
-- Oh, suddenly throwing a giraffe into a volcano to make water is crazy? Julian, King of Lemurs