[gmx-users] H211 in ffG53a5

Ken Rotondi ksr at chemistry.umass.edu
Tue Apr 4 15:19:21 CEST 2006


Hi David,

Thanks for pursuing this,

No, unfortunately h211 is in neither the .hdb nor the .pdb file. I 
attached the .pdb file to my first post as well as the additions I made 
to the .hdb file. I've reattached them at the end of this post along 
with the pdb2gmx error. I did in fact use the -ignh flag in pdb2gmx 
although the .pdb file is w/out H's.

Is there a problem with the format of the .hdb (attached) changes I've 
made? I would think not, since it removes the "warning, atoms etc. not 
in .hdb file" problems, but you never know...

Could someone with other hardware/OS (I'm running on OS X.3.9/G3 and 
RedHat/P4) run the test.pdb (1 nucleotide) with a .hdb file containing 
the modifications to see if the problem is reproducible?

On Apr 3, 2006, at 5:26 PM, David Mathog wrote:

> Ken Rotondi wrote:
>
>
>> I've had this in AMBER for some time. I need to use a
>> UAFF.
>
> ok
>
>>>
>>> There is no H211 in either the .hdb or .pdb file.
>
> My first guess would be that  even though you say it's not
> in there, it actually is.   Perhaps it's in lower case and you
> used a case sensitive search? Try
>
> grep -i h211 *.hdb *.pdb
>
> and see if it turns up.
>
> -ignh might also be helpful (doubt it though).  If all else fails
> backtrace through the code from the location of the error message
> until you find where that atom is coming from.
>
> Regards,
>
> David Mathog
> mathog at caltech.edu
> Manager, Sequence Analysis Facility, Biology Division, Caltech
>
> _____________________
> ADE     3
> 1       2      H2*       O2*       C2*       C3*
> 2       3      H61       N6        C6        N1
> 2       3      H62       N6        C6        N1
> GUA     4
> 1       2      H2*       O2*       C2*       C3*
> 2       3      H21       N2        C2        N1
> 2       3      H22       N2        C2        N1
> 1       1      H1        N1        C6        C2
> CYT     3
> 1       2      H2*       O2*       C2*       C3*
> 2       3      H41       N4        C4        N3
> 2       3      H42       N4        C4        N3
> URA     2
> 1       2      H2*       O2*       C2*       C3*
> 1       1      H3        N3        C2        C4
> _____________________
>
> ATOM      1  P   GUA A   1       4.006  48.703 126.810  1.00 58.91
> ATOM      2  O2P GUA A   1       4.598  50.201 126.810  1.00 58.91
> ATOM      3  O1P GUA A   1       3.130  48.474 125.479  1.00 58.91
> ATOM      4  O5* GUA A   1       5.220  47.646 126.843  1.00 58.91
> ATOM      5  C5* GUA A   1       6.464  48.349 126.894  1.00 58.91
> ATOM      6  C4* GUA A   1       7.236  48.051 128.158  1.00 58.91
> ATOM      7  O4* GUA A   1       7.567  46.637 128.194  1.00 58.91
> ATOM      8  C1* GUA A   1       8.854  46.462 128.764  1.00 58.91
> ATOM      9  N9  GUA A   1       9.716  45.855 127.755  1.00 58.91
> ATOM     10  C4  GUA A   1      10.914  45.215 127.975  1.00 58.91
> ATOM     11  N3  GUA A   1      11.509  45.032 129.173  1.00 58.91
> ATOM     12  C2  GUA A   1      12.655  44.380 129.062  1.00 58.91
> ATOM     13  N2  GUA A   1      13.383  44.113 130.156  1.00 58.91
> ATOM     14  N1  GUA A   1      13.174  43.942 127.869  1.00 58.91
> ATOM     15  C6  GUA A   1      12.580  44.119 126.624  1.00 58.91
> ATOM     16  O6  GUA A   1      13.135  43.683 125.607  1.00 58.91
> ATOM     17  C5  GUA A   1      11.350  44.818 126.728  1.00 58.91
> ATOM     18  N7  GUA A   1      10.447  45.200 125.746  1.00 58.91
> ATOM     19  C8  GUA A   1       9.496  45.810 126.400  1.00 58.91
> ATOM     20  C2* GUA A   1       9.338  47.838 129.227  1.00 58.91
> ATOM     21  O2* GUA A   1       8.990  48.036 130.582  1.00 58.91
> ATOM     22  C3* GUA A   1       8.576  48.757 128.282  1.00 58.91
> ATOM     23  O3* GUA A   1       8.414  50.063 128.828  1.00 58.91
> _____________________
> -------------------------------------------------------
> Program pdb2gmx, VERSION 3.3
> Source code file: add_par.c, line: 221
>
> Fatal error:
> Atom H211 not found in rtp database in residue GUA, it looks a bit 
> like H21
> -------------------------------------------------------
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