[gmx-users] Force field parameters for phosphorylated tyrosine

Justin A. Lemkul jalemkul at vt.edu
Mon Jun 13 15:35:27 CEST 2011



bharat gupta wrote:
> thanks for the reply...
> 
> Actually I have found the amber parameters for p-TYR from the following 
> links : http://www.pharmacy.manchester.ac.uk/bryce/amber#pro
> 
> I am not able to how build the residue topology ..  shall I add the 
> topology of phosphate only from this to normal tyrosine residue ??
> 

You need to define a complete residue in an .rtp entry.  See existing .rtp files 
for examples and manual section 5.6.1.

-Justin

> 
> 
> !!index array str
>  "Y1P"
> !entry.Y1P.unit.atoms table  str name  str type  int typex  int resx  int flags  int seq  int elmnt  dbl chg
>  "N" "N" 0 1 131073 1 7 -0.516300
>  "H" "H" 0 1 131073 2 1 0.293600
>  "CA" "CT" 0 1 131073 3 6 0.275503
>  "HA" "H1" 0 1 131073 4 1 0.008223
>  "CB" "CT" 0 1 131073 5 6 -0.354052
>  "HB2" "HC" 0 1 131073 6 1 0.110326
>  "HB3" "HC" 0 1 131073 7 1 0.110326
>  "CG" "CA" 0 1 131073 8 6 0.119728
>  "CD1" "CA" 0 1 131073 9 6 -0.198938
>  "HD1" "HA" 0 1 131073 10 1 0.137143
>  "CE1" "CA" 0 1 131073 11 6 -0.284884
>  "HE1" "HA" 0 1 131073 12 1 0.177179
>  "CZ" "C" 0 1 131073 13 6 0.452616
>  "CE2" "CA" 0 1 131073 14 6 -0.284884
>  "HE2" "HA" 0 1 131073 15 1 0.177179
>  "CD2" "CA" 0 1 131073 16 6 -0.198938
>  "HD2" "HA" 0 1 131073 17 1 0.137143
>  "OG" "OS" 0 1 131073 18 8 -0.534452
>  "P" "P" 0 1 131073 19 15 1.393213
>  "O1P" "OH" 0 1 131073 20 8 -0.752821
>  "O2P" "O2" 0 1 131073 21 8 -0.822464
>  "O3P" "O2" 0 1 131073 22 8 -0.822464
>  "H1P" "HO" 0 1 131073 23 1 0.423316
>  "C" "C" 0 1 131073 24 6 0.536600
>  "O" "O" 0 1 131073 25 8 -0.581900
> !entry.Y1P.unit.atomspertinfo table  str pname  str ptype  int ptypex  int pelmnt  dbl pchg
>  "N" "N" 0 -1 0.0
>  "H" "H" 0 -1 0.0
>  "CA" "CT" 0 -1 0.0
>  "HA" "H1" 0 -1 0.0
>  "CB" "CT" 0 -1 0.0
>  "HB2" "HC" 0 -1 0.0
>  "HB3" "HC" 0 -1 0.0
>  "CG" "CA" 0 -1 0.0
>  "CD1" "CA" 0 -1 0.0
>  "HD1" "HA" 0 -1 0.0
>  "CE1" "CA" 0 -1 0.0
>  "HE1" "HA" 0 -1 0.0
>  "CZ" "C" 0 -1 0.0
>  "CE2" "CA" 0 -1 0.0
>  "HE2" "HA" 0 -1 0.0
>  "CD2" "CA" 0 -1 0.0
>  "HD2" "HA" 0 -1 0.0
>  "OG" "OS" 0 -1 0.0
>  "P" "P" 0 -1 0.0
>  "O1P" "OH" 0 -1 0.0
>  "O2P" "O2" 0 -1 0.0
>  "O3P" "O2" 0 -1 0.0
>  "H1P" "HO" 0 -1 0.0
>  "C" "C" 0 -1 0.0
>  "O" "O" 0 -1 0.0
> !entry.Y1P.unit.boundbox array dbl
>  -1.000000
>  0.0
>  0.0
>  0.0
>  0.0
> !entry.Y1P.unit.childsequence single int
>  2
> !entry.Y1P.unit.connect array int
>  1
>  24
> !entry.Y1P.unit.connectivity table  int atom1x  int atom2x  int flags
>  1 2 17
>  1 3 17
>  3 4 17
>  3 24 17
>  3 5 17
>  5 6 17
>  5 7 17
>  5 8 17
>  8 16 17
>  8 9 17
>  9 10 17
>  9 11 17
>  11 12 17
>  11 13 17
>  13 18 17
>  13 14 17
>  14 15 17
>  14 16 17
>  16 17 17
>  18 19 17
>  19 22 17
>  19 21 17
>  19 20 17
>  20 23 17
>  24 25 17
> !entry.Y1P.unit.hierarchy table  str abovetype  int abovex  str belowtype  int belowx
>  "U" 0 "R" 1
>  "R" 1 "A" 1
>  "R" 1 "A" 2
>  "R" 1 "A" 3
>  "R" 1 "A" 4
>  "R" 1 "A" 5
>  "R" 1 "A" 6
>  "R" 1 "A" 7
>  "R" 1 "A" 8
>  "R" 1 "A" 9
>  "R" 1 "A" 10
>  "R" 1 "A" 11
>  "R" 1 "A" 12
>  "R" 1 "A" 13
>  "R" 1 "A" 14
>  "R" 1 "A" 15
>  "R" 1 "A" 16
>  "R" 1 "A" 17
>  "R" 1 "A" 18
>  "R" 1 "A" 19
>  "R" 1 "A" 20
>  "R" 1 "A" 21
>  "R" 1 "A" 22
>  "R" 1 "A" 23
>  "R" 1 "A" 24
>  "R" 1 "A" 25
> !entry.Y1P.unit.name <http://entry.Y1P.unit.name> single str
>  "Y1P"
> !entry.Y1P.unit.positions table  dbl x  dbl y  dbl z
>  -2.803000 1.247000 -0.295000
>  -1.865000 1.556000 -0.174000
>  -3.015000 0.022000 -1.037000
>  -3.856000 0.168000 -1.700000
>  -1.782000 -0.305000 -1.915000
>  -1.962000 -1.275000 -2.366000
>  -1.774000 0.418000 -2.724000
>  -0.435000 -0.281000 -1.219000
>  0.338000 0.878000 -1.203000
>  -0.007000 1.752000 -1.735000
>  1.552000 0.940000 -0.541000
>  2.153000 1.829000 -0.549000
>  2.035000 -0.183000 0.121000
>  1.299000 -1.362000 0.075000
>  1.704000 -2.235000 0.553000
>  0.083000 -1.405000 -0.581000
>  -0.466000 -2.331000 -0.607000
>  3.171000 -0.146000 0.830000
>  4.653000 0.133000 0.090000
>  5.550000 -0.029000 1.430000
>  4.676000 1.556000 -0.300000
>  4.905000 -0.981000 -0.825000
>  5.675000 0.835000 1.798000
>  -3.448000 -1.169000 -0.177000
>  -4.236000 -1.966000 -0.612000
> !entry.Y1P.unit.residueconnect table  int c1x  int c2x  int c3x  int c4x  int c5x  int c6x
>  1 24 0 0 0 0
> !entry.Y1P.unit.residues table  str name  int seq  int childseq  int startatomx  str restype  int imagingx
>  "Y1P" 1 26 1 "p" 0
> !entry.Y1P.unit.residuesPdbSequenceNumber array int
>  1
> !entry.Y1P.unit.solventcap array dbl
>  -1.000000
>  0.0
>  0.0
>  0.0
>  0.0
> !entry.Y1P.unit.velocities table  dbl x  dbl y  dbl z
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
>  0.0 0.0 0.0
> 
> # Parameters for TYR-PO2(OH) : Y1P; N.Homeyer, A.H.C.Horn, H.Lanig, H.Sticht, J. Mol. Model., in press 
> BOND
> OS - P   525.0   1.610
> OH - P   525.0   1.610
> 
> ANGLE
> C - OS - P   100.0   120.50
> O2 - P - OH  140.0   108.23
> HO - OH - P  140.0   108.50
> CA - C - OS   70.0   120.00
>  
> DIHE
> 
> IMPR
> CA-CA-C-OS    1.1     180.0      2.0
> 
> 
> 
> On Mon, Jun 13, 2011 at 6:52 PM, Mark Abraham <Mark.Abraham at anu.edu.au 
> <mailto:Mark.Abraham at anu.edu.au>> wrote:
> 
>     On 13/06/2011 7:15 PM, bharat gupta wrote:
> 
>         Hi,
> 
>         Does gromacs and its associated FFs have parameters for
>         phosphorylated tyrosine ??
> 
> 
>     Probably not. The best place to search is the literature.
> 
>     Mark
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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
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> 

-- 
========================================

Justin A. Lemkul
Ph.D. Candidate
ICTAS Doctoral Scholar
MILES-IGERT Trainee
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin

========================================



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