[gmx-users] gmx_topolbuild error

Alessandra Villa alessandra.villa.biosim at gmail.com
Fri Jan 10 10:12:51 CET 2020


Hi,
I am not familiar with the software "topolbuild" (gmx topolbuild does not
exist), but I have noticed that  you are not using TRIPOS atom types in
your mol2 file.
Maybe that is a problem.
Best regards
Alessandra



On Fri, Jan 10, 2020 at 7:03 AM <aayattimg at bose.res.in> wrote:

> I am getting error in topolbuild:
> Fatal error.
> Source code file: readmol2.c, line: 693
> Atom 1 (O5') has 2 connections when allowed 0
>  I have used the command
> ./topolbuild -dir /home/aayatti/topolbuild1_2_1/dat/leap/parm -ff amber -n
> tripos97
> .mol2 file that I am using is as follows:
> @<TRIPOS>MOLECULE
> QCH
>    30    31     1     0     1
> SMALL
> USER_CHARGES
> @<TRIPOS>ATOM
>   1 O5'        -1.938234    2.221639    0.669368 O         1 QCH
> -0.6458 ****
>   2 H5T        -2.161090    3.085515    0.989879 H         1 QCH
> 0.4497 ****
>   3 O3'        -3.459429   -1.728789    0.016186 O         1 QCH
> -0.6852 ****
>   4 H3T        -3.700920   -2.323917    0.713748 H         1 QCH
> 0.4392 ****
>   5 C1'        -0.662286   -0.787261   -0.296578 C         1 QCH
> 0.3964 ****
>   6 H1'        -0.605691   -1.741658   -0.791073 H         1 QCH
> 0.0394 ****
>   7 C2'        -1.435951   -0.850884    1.016075 C         1 QCH
> -0.0947 ****
>   8 H2'1       -1.108767   -0.064159    1.683744 H         1 QCH
> 0.0480 ****
>   9 H2'2       -1.331556   -1.807305    1.511592 H         1 QCH
> 0.0480 ****
>  10 C3'        -2.859368   -0.575997    0.536996 C         1 QCH
> 0.2991 ****
>  11 H3'        -3.474441   -0.127033    1.307751 H         1 QCH
> 0.0153 ****
>  12 C4'        -2.644620    0.372686   -0.650794 C         1 QCH
> 0.1743 ****
>  13 H4'        -3.310149    0.087545   -1.452894 H         1 QCH
> 0.0890 ****
>  14 C5'        -2.828924    1.845500   -0.355885 C         1 QCH
> 0.0150 ****
>  15 H5'1       -2.633260    2.416008   -1.257986 H         1 QCH
> 0.0776 ****
>  16 H5'2       -3.858755    2.018514   -0.059368 H         1 QCH
> 0.0776 ****
>  17 O4'        -1.304632    0.148647   -1.085285 O         1 QCH
> -0.4154 ****
>  18 N1          0.746765   -0.330172   -0.139522 N         1 QCH
> -0.0020 ****
>  19 C6          1.037481    0.982281   -0.067547 C         1 QCH
> -0.1180 ****
>  20 H6          0.189023    1.636860   -0.090671 H         1 QCH
> 0.2766 ****
>  21 C5          2.303418    1.459166    0.033557 C         1 QCH
> -0.2943 ****
>  22 H5          2.501789    2.509565    0.085307 H         1 QCH
> 0.1984 ****
>  23 C4          3.355190    0.521532    0.053970 C         1 QCH
> 0.4864 ****
>  24 N4          4.624825    0.860634    0.131082 N         1 QCH
> -0.8725 ****
>  25 H41         5.362632    0.189871    0.139293 H         1 QCH
> 0.4651 ****
>  26 H42         4.887551    1.821377    0.170549 H         1 QCH
> 0.4651 ****
>  27 N3          3.028239   -0.778715   -0.004253 N         1 QCH
> -0.2232 ****
>  28 H3          3.730821   -1.491229    0.018101 H         1 QCH
> 0.3215 ****
>  29 C2          1.731998   -1.290150   -0.085103 C         1 QCH
> 0.4517 ****
>  30 O2          1.543842   -2.458176   -0.098679 O         1 QCH
> -0.4823 ****
> @<TRIPOS>BOND
>     1     1     2 1
>     2     1    14 1
>     3     3     4 1
>     4     3    10 1
>     5     5     6 1
>     6     5     7 1
>     7     5    17 1
>     8     5    18 1
>     9     7     8 1
>    10     7     9 1
>    11     7    10 1
>    12    10    11 1
>    13    10    12 1
>    14    12    13 1
>    15    12    14 1
>    16    12    17 1
>    17    14    15 1
>    18    14    16 1
>    19    18    19 1
>    20    18    29 1
>    21    19    20 1
>    22    19    21 1
>    23    21    22 1
>    24    21    23 1
>    25    23    24 1
>    26    23    27 1
>    27    24    25 1
>    28    24    26 1
>    29    27    28 1
>    30    27    29 1
>    31    29    30 1
> @<TRIPOS>SUBSTRUCTURE
>       1  QCH              1 ****               0 ****  ****
>
>
>
>
> kindly suggest to debug the error.
> Thanking you in advance.
>
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