By the way,

I used this one recently:

http://zhang.bioinformatics.ku.edu/TM-score/

It computes a lot of scores: TM-score, MaxSub-score, GDT-TS-score and
GDT-HA-score.
All of this with a single Fortran file (so nothing more needed except
a Fortran compiler), I was impressed.

Regards,
F.

Pavel Afonine wrote:
>   Hi Joe,
> 
> do you want to calculate rms deviations between two sets of coordinates 
> that are originating from two PDB files?
> 
> If my guess is correct, then you can get this number using the command 
> below:
> 
> phenix.superpose_pdbs file1.pdb file2.pdb
> 
> which will superpose two sets of coordinates and print RMS deviations 
> before and after superposition, like this:
> 
> RMSD between fixed and moving atoms (start): 0.575
> RMSD between fixed and moving atoms (final): 0.563
> 
> Is this is what you want?
> 
> Good luck!
> Pavel.
> 
> 
> On 8/2/10 9:59 PM, Joe Yap wrote:
>> Dear CCP4 users,
>>  
>> I have two sets of coordinates that are of similar structure and I 
>> would like to know is there a program I can use to calculate the 
>> coordinate errors between these two sets of coordinates?
>>  
>> I would appreciate it if you can help me with this.
>>  
>> Thank you so much.
>>  
>> Best regards,
>>  
>> Joe Yap
> 

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