Re: [ccp4bb] Help! low resolution protein-DNA complex

2011-06-17 Thread Xun Lu
Thank you!! It's really encouraging refreshing to begin a day with so many advices! ccp4bb is always helpful~ Thanks to one of my committee member who suggested me to get out a paper from the structure, and thanks to all the people at the mid-Atlantic crystallography meeting who told me my

Re: [ccp4bb] Help! low resolution protein-DNA complex

2011-06-17 Thread Robbie Joosten
Dear Xun, I have a 3.2A dataset for a protein-DNA complex. The protein is a homodimer, and the DNA is almost palindromic (except one base pair in the middle and two or three base pairs at both two ends). It is my first time solving structures, and unfortunately the resolution is

Re: [ccp4bb] Help! low resolution protein-DNA complex

2011-06-17 Thread Jürgen Bosch
Another thing you should bookmark and check out is the Molprobity page (google for it), upload your pdb file and let it evaluate what you have done. The chart it generates will guide you through your structure and you will be able to do a good job. Jürgen .. Jürgen Bosch

[ccp4bb] Help! low resolution protein-DNA complex

2011-06-16 Thread Xun Lu
Hi, I have a 3.2A dataset for a protein-DNA complex. The protein is a homodimer, and the DNA is almost palindromic (except one base pair in the middle and two or three base pairs at both two ends). It is my first time solving structures, and unfortunately the resolution is low. No body in

Re: [ccp4bb] Help! low resolution protein-DNA complex

2011-06-16 Thread Nat Echols
On Thu, Jun 16, 2011 at 2:11 PM, Xun Lu xlun...@gmail.com wrote: I have a 3.2A dataset for a protein-DNA complex. The protein is a homodimer, and the DNA is almost palindromic (except one base pair in the middle and two or three base pairs at both two ends). It is my first time solving

Re: [ccp4bb] Help! low resolution protein-DNA complex

2011-06-16 Thread Pavel Afonine
Hi Xun, I have a 3.2A dataset for a protein-DNA complex. The protein is a homodimer, and the DNA is almost palindromic (except one base pair in the middle and two or three base pairs at both two ends). It is my first time solving structures, and unfortunately the resolution is low. No

Re: [ccp4bb] Help! low resolution protein-DNA complex

2011-06-16 Thread Reginald McNulty
Hi Xun, I'd find out what the NCS averaging correlation is between the molecules in the asymmetric unit. If your correlation is high then tight NCS should help in refinement. You could also take a look at the NCS averaged map in COOT. You can also have ideal helices build using COOT or PHENIX

Re: [ccp4bb] Help! low resolution protein-DNA complex

2011-06-16 Thread Ed Pozharski
I have a 3.2A dataset for a protein-DNA complex. The protein is a homodimer, and the DNA is almost palindromic (except one base pair in the middle and two or three base pairs at both two ends). It is my first time solving structures, and unfortunately the resolution is low. No body in