[gmx-users] Regarding ffG43a1p force field

Ramachandran G gtrama at gmail.com
Thu Jun 23 09:29:41 CEST 2011


yes!

On Thu, Jun 23, 2011 at 12:26 AM, bharat gupta <bharat.85.monu at gmail.com>wrote:

> these are in continuity I mean for the ffbonded.itp file
>
> On Thu, Jun 23, 2011 at 4:21 PM, Ramachandran G <gtrama at gmail.com> wrote:
>
>> more parameters - ffbonded.itp
>> NB    CT       1    0.1444    294553.6
>> NB    C        1    0.1404    334720.0
>> C      CC      1    0.1407    343088.0
>> CC    CB       1    0.1474    468608.0
>>  CB     H2     1    0.1076    129960.25
>>
>> to aminoacids.hdb
>> 1       1       HE2     CE2     CZ      CD2
>> 1       1       HE1     CE1     CZ      CD1
>> 1       1       HD1     CD1     CG2     CE1
>> 1       1       HD2     CD2     CG2     CE2
>> 1       2       HH      OH      CZ      CE1
>> 1       1       HB2     CB2     CA2     CG2
>> 1       2       HG1     OG1     CB1     CA1
>> 1       1       H       N      CA1     C1
>>
>>
>>
>>
>>
>>
>> On Thu, Jun 23, 2011 at 12:18 AM, Ramachandran G <gtrama at gmail.com>wrote:
>>
>>> For ffbonded.itp, i added the following. (you need to be carefull here
>>> since i cooked upto the force constants)
>>>  C     CC    CB    CA    9     180.0   4.309   1
>>>  NB    CC    C     O     9     180.0   4.309   1 ;
>>>  NB    CC    CB    CA    9     180.0   4.309   1
>>>  NB    CC    CB    H2    9     180.0   4.309   1
>>>  C     CC    CB    H2    9     180.0   4.309   1
>>>  NB    CC    C     NB    9     180.0   4.0876  1
>>>  CT    NB    C     CC    9     180.0   4.0876  1
>>>  CT    NB    C     O     9     180.0   4.0876  1
>>>  CB    CC    C     NB    9     180.0   4.0876  1
>>>  CB    CC    C     O     9     180.0   4.0876  1
>>>  CC    C     NB    CC    9     180.0   4.7656  1
>>>  O     C     NB    CC    9     180.0   4.7656  1;
>>>  CC    NB    CT    C     9     180.0   4.1400  1;
>>>  C     NB    CT    C     9     180.0   4.1400  1 ;
>>>  CT    CT    OH    HO    4     180.0   4.1400  1 ;
>>>  OH   CT    CT     CC    9       0.0   4.1400  1
>>>  OH   CT    CT     N     9     180.0   4.9162  1
>>>
>>> ; added newly  improper dihedrals
>>>  CB    CC    CA   H2   4       180.0    4.1840 2
>>>  CC    NB    CB   C    4       180.0    4.1840 2
>>>  CC    CT    NB   NB   4       180.0    4.1840 2
>>>  CT    N     CC   CT   4       144.64   3.1840 2
>>>  NB    O     CC   C    4       180.0    4.1840 2
>>>  NB    CC    C    CT   4       180.0    4.1840 2
>>>  CA    CB    CA   CA   4       180.0    4.1840 2
>>>  CA    HA    CA   CA   4       180.0    4.1840 2
>>> ; added to test
>>>  N   CT   C    H    4   180.0    4.1840  2
>>>
>>>
>>>
>>>
>>> On Thu, Jun 23, 2011 at 12:13 AM, Ramachandran G <gtrama at gmail.com>wrote:
>>>
>>>> For the GFP chromophore  i name residue as CRIH.
>>>> 1. aminoacids.rtp
>>>>        CB2     CB     0.019103       1
>>>>        CA2     CC    -0.026635       2
>>>>        N2      NB    -0.436463       3
>>>>        C1      CC     0.302706       4
>>>>        N3      NB    -0.541478       5
>>>>        C2      C      0.563844       6
>>>>        OC2     O     -0.394118       7
>>>>        CG2     CA    -0.079330       8
>>>>        CZ      CA     0.240178       9
>>>>        CD1     CA    -0.072596      10
>>>>        HD1     HA     0.129374      11
>>>>        CD2     CA    -0.070677      12
>>>>        HD2     HA     0.091532      13
>>>>        CE1     CA    -0.129374      14
>>>>        HE1     HA     0.091792      15
>>>>        CE2     CA    -0.087778      16
>>>>        HE2     HA     0.112301      17
>>>>        OH      OH    -0.454413      18
>>>>        H       H      0.37107       19
>>>>        HH      HO     0.258435      20
>>>>        N       N     -0.61682       21
>>>>        CA1     CT    -0.116631      22
>>>>        CB1     CT    -0.03127       23
>>>>        OG1     OH    -0.74662       24
>>>>        HG1     HO     0.45887       25
>>>>        HB2     H2     0.116716      26
>>>>        CA3     CT    -0.250251      27
>>>>        C        C     0.35254       28
>>>>        O        O    -0.48366       29
>>>>  [ bonds ]
>>>>        C1      CA1
>>>>        N3      CA3
>>>>        N3      C1
>>>>        N3      C2
>>>>        C2      OC2
>>>>        C1      N2
>>>>        C2      CA2
>>>>        N2      CA2
>>>>        CA2     CB2
>>>>        CB2     CG2
>>>>        CG2     CD1
>>>>        CG2     CD2
>>>>        CD1     CE1
>>>>        CD2     CE2
>>>>        CE1     CZ
>>>>        CE2     CZ
>>>>        CZ      OH
>>>>        CB1     OG1
>>>>        OH      HH
>>>>        CB2     HB2
>>>>        CD1     HD1
>>>>        CD2     HD2
>>>>        CE1     HE1
>>>>        CE2     HE2
>>>>        CA1     N
>>>>        CA1     CB1
>>>>        CA3     C
>>>>         C      O
>>>>        OG1     CB1
>>>>        OG1     HG1
>>>>         N      H
>>>>        -C      N
>>>>        +N      C
>>>>  [ angles ]
>>>>         ;  ai    aj    ak   th0     cth     ub0     cub
>>>>           N2   C1   N3     114.0      1087.87
>>>>           C1    N2   CA2   106.0      1087.87
>>>>           C1    N3   C2    107.9      1087.87
>>>>           N2    CA2  C2    108.3     1087.87
>>>>           N2    CA2  CB2   129.5      376.56
>>>>           C2    N3   CA3   123.4      267.776
>>>>           N3    C2   OC2   126.0      351.456
>>>>           N3    C2   CA2   103.0     1087.87
>>>>           OC2   C2   CA2   132.0      317.984
>>>>           C2    CA2  CB2   122.0      376.56
>>>>           CA2   CB2  CG2   130.0     1087.87
>>>>           CB2   CG2  CD1   121.0      383.2544
>>>>           CB2   CG2  CD2   121.0      383.2544
>>>>           CG2   CD1  CE1   120.0      334.72
>>>>           CG2   CD2  CE2   120.0      334.72
>>>>           CD1   CG2  CD2   120.0      334.72
>>>>           CD1   CE1  CZ    120.0      334.72
>>>>           CD2   CE2  CZ    120.0      334.72
>>>>           CE1   CZ  CE2    120.0      334.72
>>>>           OH    CZ  CE1    120.0      378.2336
>>>>           OH    CZ  CE2    120.0      378.2336
>>>>           HH    OH   CZ    108.0      543.92
>>>>           HG1   OG1  CB1   108.0      543.92
>>>>           N2    C1   CA1   125.0      334.72
>>>>           N3    C1   CA1   121.4      292.88
>>>>           C1    N3  CA3    129.0      301.248
>>>>           HB2   CB2  CA2   114.0      351.456
>>>>           HB2   CB2  CG2   116.0      351.456
>>>>           HD1   CD1  CG2   120.0      251.04
>>>>           HD1   CD1  CE1   120.0      251.04
>>>>           HD2   CD2  CG2   120.0      251.04
>>>>           HD2   CD2  CE2   120.0      251.04
>>>>           HE1   CE1  CZ    120.0      251.04
>>>>           HE1   CE1  CD1   120.0      251.04
>>>>           HE2   CE2  CZ    120.0      251.04
>>>>           HE2   CE2  CD2   120.0      251.04
>>>>            CA1   N    H     118.4      317.984
>>>>            CA1   CB1  OG1   109.5      669.44
>>>>            N     CA1  CB1   109.7      669.44
>>>>            CB1   CA1  C1    111.1      527.184
>>>>           CA3   C    O     120.4      669.44
>>>>            N     CA1  C1    110.1      527.184
>>>>           C     CA3  N3    110.3      669.44
>>>>           CA3   C    N     116.6      585.76
>>>>           C2    CA2   CB2    CG2 ;
>>>>           N2    CA2   CB2    CG2
>>>>           CA2   CB2   CG2   CD1 ;
>>>>           CA2   CB2   CG2   CD2 ;
>>>>           N2    CA2   CB2   HB2
>>>>           C2    CA2   CB2   HB2
>>>>           HB2   CB2   CG2   CD1 ;
>>>>           HB2   CB2   CG2   CD2 ;
>>>>           CB2   CG2   CD1   CE1 ;
>>>>           CB2   CG2   CD2   CE2 ;
>>>>           CD1   CE1   CZ    CE2
>>>>           CD1   CE1   CZ    OH
>>>>           CE1   CZ    OH    HH
>>>>           CE2   CZ    OH    HH
>>>>           CG2   CD1   CE1   CZ
>>>>           HD1   CD1   CG2   CD2
>>>>           HD1   CD1   CE1   CZ
>>>>           HD2   CD2   CG2   CD1
>>>>           HD2   CD2   CE2   CZ
>>>>           HE1   CE1   CD1   CG2
>>>>           HE1   CE1   CZ    CE2
>>>>           HE2   CE2   CD2   CG2
>>>>           HE2   CE2   CZ    CE1
>>>>           CA1   C1     N2   CA2 ;
>>>>           CA1   C1     N3   C2  ;
>>>>           CA3   N3     C2   CA2
>>>>           CA3   N3     C1   N2  ;
>>>>           CG2   CB2    CA2  N2  ; repeated
>>>>           CG2   CB2    CA2  C2  ; repeated
>>>>           CB2   CA2    N2   C1
>>>>           CB2   CA2    C2   N3
>>>>           CA2   N2     C1   N3
>>>>           CA2   C2     N3   C1
>>>>           OG1   CB1    CA1  C1  ;
>>>>           OG1   CB1    CA1  N   ;
>>>>           CA1   CB1    OG1  HG1  ;
>>>>           N3    CA3    C    O   ;
>>>>           OC2   C2    CA2  CB2  ;
>>>>           OC2   C2    N3   CA3  ;
>>>>           OC2   C2    CA2  N2   ;
>>>>           OC2   C2    N3   C1   ;
>>>>           N3    CA3    C   +N  ;  added to link the neighbouring valine
>>>>           CA3    C    +N   +H  ;
>>>>           CA3    C    +N   +CA  ;
>>>>           CB1   CA1    N   -C   ;  added to link the neighbouring PHE
>>>>           C1    CA1    N   -C   ;
>>>>           CA1    N    -C   -O   ;
>>>>            H     N    -C   -O   ; n
>>>>  [ impropers ]
>>>>            C1     CA1   N2     N3
>>>>            CA2    N2    CB2    C2
>>>>            C2     CA2   OC2    N3
>>>>            CG2    CB2   CD1    CD2
>>>>            CZ     CE1   CE2    OH
>>>>            N3     C1    C2     CA3
>>>>            CB2    CA2   CG2    HB2
>>>>            CD1    CG2   HD1    CE1
>>>>            CD2    CG2   HD2    CE2
>>>>            CE1    CD1   HE1    CZ
>>>>            CE2    CD2   HE2    CZ
>>>>            CA1    N     C1     CB1
>>>>            C      CA3    N     O  ;
>>>>            N      CA1    C     H  ;
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>> --
>>> Postdoctoral Research Scholar,
>>> Department of Chemistry,
>>> University of Nevada, Reno.
>>>
>>
>>
>>
>> --
>> Postdoctoral Research Scholar,
>> Department of Chemistry,
>> University of Nevada, Reno.
>>
>> --
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>
>
>
> --
> Bharat
> Ph.D. Candidate
> Room No. : 7202A, 2nd Floor
> Biomolecular Engineering Laboratory
> Division of Chemical Engineering and Polymer Science
> Pusan National University
> Busan -609735
> South Korea
> Lab phone no. - +82-51-510-3680, +82-51-583-8343
> Mobile no. - 010-5818-3680
> E-mail : monu46010 at yahoo.com
>
>
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-- 
Postdoctoral Research Scholar,
Department of Chemistry,
University of Nevada, Reno.
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