Re: [ccp4bb] software molecular replacement

2013-04-22 Thread Roger Rowlett
There are three general approaches to molecular replacement: 1. rotation-translation algorithms: these divide the 6-dimensional problem of placing a replacement model in the ASU into two sequential 3-parameter searches, which, if it works, converges more quickly than a 6-dimensional sear

Re: [ccp4bb] software molecular replacement

2013-04-22 Thread Mark J van Raaij
Hi Lisa, I would start with learning AMoRe. It is relatively simple, runs fast and uses little memory, so you can experiment easily with lots of parameters. It is also relatively easy to modify the parameters, radii etc. and get a feel for which ones to use. If after a few days or weeks you und

[ccp4bb] software molecular replacement

2013-04-22 Thread LISA
Hi all, There are so many software for MR, such as phaser, balbe,molrep, and amore. What is difference between them? Which one is powerful? Please give some comments for these software?Thank you. Sincerely, lisa