On Tue, Apr 29, 2014 at 5:34 PM, Subhani Bandara <ramssb17@gmail.com> wrote:

I am trying to solve the structure of 7 KDa protein with a cubic space group at 1.35A resolution with Phaser-MR. It gives the error massage saying "The composition you have entered has a protein/nucleic acid content of 300.3%, which is impossible. Decrease your composition" and stops. This appears even if I give one chain as search model and say there is only one component copy. How can I fix this.

The most likely explanation is that your sequence file contains multiple copies - or perhaps it contains the entire sequence of a large protein and you're working with a single domain?

-Nat