Good evening,

I'm currently working on building a homology model of a phosphoprotein, and I'm building an ab initio insert onto the backbone. I've modeled and minimized backbones from two different templates in Discovery Studio, then built the insert into the backbones using MODELLER, and I have successfully minimized and refined the loop for one of my models using the "Loop Refinement" protocol. However, when I attempt to run the protocol on my other model, I am given an error message after several minutes. Looking over the log files, Stage 1 of the refinement was completed, but an error occured at the start of Stage 2, where the program cannot find a file called ".b.ranks". I guess that it's a type of file necessary for the minimization to proceed, but I took my first model through the exact same steps and didn't encounter this error. It may be a problem that occured at an earlier step, but I'm not sure where the issue may have been. Is there any way to let the protocol find the b.ranks file, or add it to my model somehow? Thank you.