I am trying to do molecular replacement on a small peptide (less than 40 AA) and have not had any success using phaser. Are there any tricks or better programs for really small peptides? The data is great 1.1 A, ~35% solvent, and two molecules in the ASU. I have tried all the standard stuff, changing resolution cut off etc. I may move to sulfur phasing at this resolution but I would like to get the MR to work.
Allen
