Hello Huw,

what happens when you remove the period '.' in the residue range description,
i.e., replace
    RANGE  'B   3.' 'B   3.' P
with
    RANGE  'B   3' 'B   3' P
?

Tim
    
On Thu, Jul 15, 2010 at 03:54:45PM +0100, Huw Jenkins wrote:
> Hi,
> 
> I am currently refining some reasonably high (1.4-1.6 Å) resolution 
> protein:RNA complex structures and was trying the approach described in 
> Schwartz et al. Nat. Struct. Biol. 8 (2001) 761-765 where they divided each 
> nucleotide into three TLS groups  – the ribose, the phosphorus atom plus both 
> nonesterified oxygens and the base. 
> 
> When I define a tlsin file that does this with the ribose, P OP1 and OP2, and 
> base from 3 successive nucleotides everything seems to work fine so the 
> groups are defined correctly. However when I divide a single nucleotide into 
> 3 TLS groups only the first group has its origin calculated and actually has 
> TLS parameters refined:
> 
> 
> TLS origin for group            1  -3.1622999      -6.9280601      -9.6330261 
>    
> TLS origin for group            2   0.0000000       0.0000000       0.0000000 
>    
> TLS origin for group            3   0.0000000       0.0000000       0.0000000 
>   
> 
> TLS group    1:                                                               
>                   
>  T tensor ( 1) =    0.046   0.115   0.103  -0.003  -0.008   0.087
>  L tensor ( 1) =    1.341   1.887   5.684   0.509  -2.040  -0.436
>  S tensor ( 1) =    0.015   0.015  -0.257  -0.220  -0.024   0.071   0.095   
> 0.060
> 
> TLS group    2:                                                               
>                   
>  T tensor ( 2) =    0.031   0.031   0.031   0.000   0.000   0.000
>  L tensor ( 2) =    0.000   0.000   0.000   0.000   0.000   0.000
>  S tensor ( 2) =    0.000   0.000   0.000   0.000   0.000   0.000   0.000   
> 0.000
> 
> TLS group    3:                                                               
>                   
>  T tensor ( 3) =    0.031   0.031   0.031   0.000   0.000   0.000
>  L tensor ( 3) =    0.000   0.000   0.000   0.000   0.000   0.000
>  S tensor ( 3) =    0.000   0.000   0.000   0.000   0.000   0.000   0.000   
> 0.000
> 
> 
> An excerpt from my tlsin is below:
> 
> TLS    
> RANGE  'B   3.' 'B   3.' P
> RANGE  'B   3.' 'B   3.' O1P
> RANGE  'B   3.' 'B   3.' O2P
> 
> TLS    
> RANGE  'B   3.' 'B   3.' C1*
> RANGE  'B   3.' 'B   3.' C2*
> RANGE  'B   3.' 'B   3.' C3*
> RANGE  'B   3.' 'B   3.' C4*
> RANGE  'B   3.' 'B   3.' C5*
> RANGE  'B   3.' 'B   3.' O2*
> RANGE  'B   3.' 'B   3.' O3*
> RANGE  'B   3.' 'B   3.' O4*
> 
> 
> TLS    
> RANGE  'B   3.' 'B   3.' N1
> RANGE  'B   3.' 'B   3.' C2
> RANGE  'B   3.' 'B   3.' O2
> RANGE  'B   3.' 'B   3.' N3
> RANGE  'B   3.' 'B   3.' C4
> RANGE  'B   3.' 'B   3.' O4
> RANGE  'B   3.' 'B   3.' C5
> RANGE  'B   3.' 'B   3.' C6
> 
> I guess I've got the syntax of the tlsin file wrong? Any suggestions for 
> what's wrong would be much appreciated!
> 
> Thanks,
> 
> 
> Huw 
> 
> 
> 
> --
> Dr Huw Jenkins
> Astbury Centre for Structural Molecular Biology 
> University of Leeds

-- 
--
Tim Gruene
Institut fuer anorganische Chemie
Tammannstr. 4
D-37077 Goettingen

GPG Key ID = A46BEE1A

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