Difference between revisions of "2019 AMBER tutorial with PDBID 2BXF"
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saveamberparm solvcomplex 2BXF.wet.complex.prmtop 2BXF.wet.complex.rst7 | saveamberparm solvcomplex 2BXF.wet.complex.prmtop 2BXF.wet.complex.rst7 | ||
− | + | #!/usr/bin/sh | |
− | + | ###Load Protein force field | |
− | + | source leaprc.protein.ff14SB | |
− | + | ###Load GAFF force field (for our ligand) | |
− | + | source leaprc.gaff | |
− | + | ###Load TIP3P (water) force field | |
− | + | source leaprc.water.tip3p | |
− | #!/usr/bin/sh | + | ####Load Ions frcmod for the tip3p model |
− | + | loadamberparams frcmod.ionsjc_tip3p | |
− | # | + | ###Needed so we can use igb=8 model |
− | + | set default PBradii mbondi3 | |
− | # | + | ###Load Protein pdb file |
− | + | rec=loadpdb ../zzz.master/backup.pdb | |
− | # | + | bond rec.49.SG rec.58.SG |
− | + | bond rec.241.SG rec.249.SG | |
− | # | + | bond rec.71.SG rec.87.SG |
− | + | bond rec.86.SG rec.97.SG | |
− | # | + | bond rec.120.SG rec.165.SG |
− | + | bond rec.164.SG rec.173.SG | |
− | + | bond rec.510.SG rec.555.SG | |
− | + | bond rec.472.SG rec.482.SG | |
− | + | bond rec.457.SG rec.473.SG | |
− | + | bond rec.196.SG rec.242.SG | |
− | + | bond rec.261.SG rec.275.SG | |
− | + | bond rec.312.SG rec.357.SG | |
− | + | bond rec.274.SG rec.285.SG | |
− | + | bond rec.388.SG rec.434.SG | |
− | + | bond rec.433.SG rec.444.SG | |
− | + | bond rec.554.SG rec.563.SG | |
− | + | bond rec.356.SG rec.365.SG | |
− | + | ###Load Ligand frcmod/mol2 | |
− | + | loadamberparams ../000.parameters/2BXF_lig.am1bcc.frcmod | |
− | + | lig=loadmol2 ../000.parameters/2BXF_lig.am1bcc.mol2 | |
− | + | ###Create gas-phase complex | |
− | + | gascomplex= combine {rec lig} | |
− | + | ###Write gas-phase pdb | |
− | + | savepdb gascomplex 2BXF.gas.complex.pdb | |
− | + | ###Write gas-phase toplogy and coord files for MMGBSA calc | |
− | + | saveamberparm gascomplex 2BXF.gas.complex.prmtop 2BXF.gas.complex.rst7 | |
− | + | saveamberparm rec 2BXF.gas.receptor.prmtop 2BXF.gas.receptor.rst7 | |
− | + | saveamberparm lig 2BXF.gas.ligand.prmtop 2BXF.gas.ligand.rst7 | |
− | + | ###Create solvated complex (albeit redundant) | |
− | + | solvcomplex= combine {rec lig} | |
− | + | ###Solvate the system | |
− | + | solvateoct solvcomplex TIP3PBOX 12.0 | |
− | + | ###Neutralize system (it will add either Na or Cl depending on net charge) | |
− | + | addions solvcomplex Cl- 0 | |
− | + | addions solvcomplex Na+ 0 | |
− | + | ###Write solvated pdb file | |
− | + | savepdb solvcomplex 2BXF.wet.complex.pdb | |
− | + | ###Check the system | |
− | + | charge solvcomplex | |
− | + | check solvcomplex | |
− | + | ###Write Solvated topology and coord file | |
− | + | saveamberparm solvcomplex 2BXF.wet.complex.prmtop 2BXF.wet.complex.rst7 | |
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Revision as of 15:01, 19 April 2019
2BXF with an explicit solvent model
Prepare the files
Convert 2BXF.lig.withH.charged.mol2 to pdb in chimera
Convert 2BXF.rec.withH.charged.mol2 to pdb in chimera
Copy into zzz.master
Parameters
The system we are working on has two main components (Protein receptor & ligand). The usual forcefield "ff14SB" contains all the parameters needed for calculations of the protein. However, the ligand is a non-protein component. Therefore, ff14SB forcefield does not contain the parameters needed for the calculations regarding the ligand. Therefore, we need to generate parameters needed for the ligand. The following steps will be taken using antechamber in order to generate the ligand parameters.
Move into 000.programs
Paramaterize the ligand
antechamber -i ../zzz.master/2BXF.lig.withH.charged.pdb -fi pdb -o 2BXF_lig.am1bcc.mol2 -fo mol2 -at gaff2 -c bcc -rn LIG -nc -1
Check for missing force field parameters
parmchk2 -i 2BXF_lig.am1bcc.mol2 -f mol2 -o 2BXF_lig.am1bcc.frcmod
- !/usr/bin/sh
- Load Protein force field
source leaprc.protein.ff14SB
- Load GAFF force field (for our ligand)
source leaprc.gaff
- Load TIP3P (water) force field
source leaprc.water.tip3p
- Load Ions frcmod for the tip3p model
loadamberparams frcmod.ionsjc_tip3p
- Needed so we can use igb=8 model
set default PBradii mbondi3
- Load Protein pdb file
rec=loadpdb ../zzz.master/backup.pdb bond rec.49.SG rec.58.SG bond rec.241.SG rec.249.SG bond rec.71.SG rec.87.SG bond rec.86.SG rec.97.SG bond rec.120.SG rec.165.SG bond rec.164.SG rec.173.SG bond rec.510.SG rec.555.SG bond rec.472.SG rec.482.SG bond rec.457.SG rec.473.SG bond rec.196.SG rec.242.SG bond rec.261.SG rec.275.SG bond rec.312.SG rec.357.SG bond rec.274.SG rec.285.SG bond rec.388.SG rec.434.SG bond rec.433.SG rec.444.SG bond rec.554.SG rec.563.SG bond rec.356.SG rec.365.SG
- Load Ligand frcmod/mol2
loadamberparams ../000.parameters/2BXF_lig.am1bcc.frcmod lig=loadmol2 ../000.parameters/2BXF_lig.am1bcc.mol2
- Create gas-phase complex
gascomplex= combine {rec lig}
- Write gas-phase pdb
savepdb gascomplex 2BXF.gas.complex.pdb
- Write gas-phase toplogy and coord files for MMGBSA calc
saveamberparm gascomplex 2BXF.gas.complex.prmtop 2BXF.gas.complex.rst7 saveamberparm rec 2BXF.gas.receptor.prmtop 2BXF.gas.receptor.rst7 saveamberparm lig 2BXF.gas.ligand.prmtop 2BXF.gas.ligand.rst7
- Create solvated complex (albeit redundant)
solvcomplex= combine {rec lig}
- Solvate the system
solvateoct solvcomplex TIP3PBOX 12.0
- Neutralize system (it will add either Na or Cl depending on net charge)
addions solvcomplex Cl- 0 addions solvcomplex Na+ 0
- Write solvated pdb file
savepdb solvcomplex 2BXF.wet.complex.pdb
- Check the system
charge solvcomplex check solvcomplex
- Write Solvated topology and coord file
saveamberparm solvcomplex 2BXF.wet.complex.prmtop 2BXF.wet.complex.rst7
#!/usr/bin/sh
###Load Protein force field source leaprc.protein.ff14SB ###Load GAFF force field (for our ligand) source leaprc.gaff ###Load TIP3P (water) force field source leaprc.water.tip3p ####Load Ions frcmod for the tip3p model loadamberparams frcmod.ionsjc_tip3p ###Needed so we can use igb=8 model set default PBradii mbondi3
###Load Protein pdb file rec=loadpdb ../zzz.master/backup.pdb bond rec.49.SG rec.58.SG bond rec.241.SG rec.249.SG bond rec.71.SG rec.87.SG bond rec.86.SG rec.97.SG bond rec.120.SG rec.165.SG bond rec.164.SG rec.173.SG bond rec.510.SG rec.555.SG bond rec.472.SG rec.482.SG bond rec.457.SG rec.473.SG bond rec.196.SG rec.242.SG bond rec.261.SG rec.275.SG bond rec.312.SG rec.357.SG bond rec.274.SG rec.285.SG bond rec.388.SG rec.434.SG bond rec.433.SG rec.444.SG bond rec.554.SG rec.563.SG bond rec.356.SG rec.365.SG
###Load Ligand frcmod/mol2 loadamberparams ../000.parameters/2BXF_lig.am1bcc.frcmod lig=loadmol2 ../000.parameters/2BXF_lig.am1bcc.mol2
###Create gas-phase complex gascomplex= combine {rec lig}
###Write gas-phase pdb savepdb gascomplex 2BXF.gas.complex.pdb
###Write gas-phase toplogy and coord files for MMGBSA calc saveamberparm gascomplex 2BXF.gas.complex.prmtop 2BXF.gas.complex.rst7 saveamberparm rec 2BXF.gas.receptor.prmtop 2BXF.gas.receptor.rst7 saveamberparm lig 2BXF.gas.ligand.prmtop 2BXF.gas.ligand.rst7
###Create solvated complex (albeit redundant) solvcomplex= combine {rec lig}
###Solvate the system solvateoct solvcomplex TIP3PBOX 12.0
###Neutralize system (it will add either Na or Cl depending on net charge) addions solvcomplex Cl- 0 addions solvcomplex Na+ 0
###Write solvated pdb file savepdb solvcomplex 2BXF.wet.complex.pdb
###Check the system charge solvcomplex check solvcomplex
###Write Solvated topology and coord file saveamberparm solvcomplex 2BXF.wet.complex.prmtop 2BXF.wet.complex.rst7
#!/usr/bin/sh
###Load Protein force field source leaprc.protein.ff14SB ###Load GAFF force field (for our ligand) source leaprc.gaff ###Load TIP3P (water) force field source leaprc.water.tip3p ####Load Ions frcmod for the tip3p model loadamberparams frcmod.ionsjc_tip3p ###Needed so we can use igb=8 model set default PBradii mbondi3
###Load Protein pdb file rec=loadpdb ../zzz.master/backup.pdb bond rec.49.SG rec.58.SG bond rec.241.SG rec.249.SG bond rec.71.SG rec.87.SG bond rec.86.SG rec.97.SG bond rec.120.SG rec.165.SG bond rec.164.SG rec.173.SG bond rec.510.SG rec.555.SG bond rec.472.SG rec.482.SG bond rec.457.SG rec.473.SG bond rec.196.SG rec.242.SG bond rec.261.SG rec.275.SG bond rec.312.SG rec.357.SG bond rec.274.SG rec.285.SG bond rec.388.SG rec.434.SG bond rec.433.SG rec.444.SG bond rec.554.SG rec.563.SG bond rec.356.SG rec.365.SG
###Load Ligand frcmod/mol2 loadamberparams ../000.parameters/2BXF_lig.am1bcc.frcmod lig=loadmol2 ../000.parameters/2BXF_lig.am1bcc.mol2
###Create gas-phase complex gascomplex= combine {rec lig}
###Write gas-phase pdb savepdb gascomplex 2BXF.gas.complex.pdb
###Write gas-phase toplogy and coord files for MMGBSA calc saveamberparm gascomplex 2BXF.gas.complex.prmtop 2BXF.gas.complex.rst7 saveamberparm rec 2BXF.gas.receptor.prmtop 2BXF.gas.receptor.rst7 saveamberparm lig 2BXF.gas.ligand.prmtop 2BXF.gas.ligand.rst7
###Create solvated complex (albeit redundant) solvcomplex= combine {rec lig}
###Solvate the system solvateoct solvcomplex TIP3PBOX 12.0
###Neutralize system (it will add either Na or Cl depending on net charge) addions solvcomplex Cl- 0 addions solvcomplex Na+ 0
###Write solvated pdb file savepdb solvcomplex 2BXF.wet.complex.pdb
###Check the system charge solvcomplex check solvcomplex
###Write Solvated topology and coord file saveamberparm solvcomplex 2BXF.wet.complex.prmtop 2BXF.wet.complex.rst7
#!/usr/bin/sh ###Load Protein force field source leaprc.protein.ff14SB ###Load GAFF force field (for our ligand) source leaprc.gaff ###Load TIP3P (water) force field source leaprc.water.tip3p ####Load Ions frcmod for the tip3p model loadamberparams frcmod.ionsjc_tip3p ###Needed so we can use igb=8 model set default PBradii mbondi3 ###Load Protein pdb file rec=loadpdb ../zzz.master/backup.pdb bond rec.49.SG rec.58.SG bond rec.241.SG rec.249.SG bond rec.71.SG rec.87.SG bond rec.86.SG rec.97.SG bond rec.120.SG rec.165.SG bond rec.164.SG rec.173.SG bond rec.510.SG rec.555.SG bond rec.472.SG rec.482.SG bond rec.457.SG rec.473.SG bond rec.196.SG rec.242.SG bond rec.261.SG rec.275.SG bond rec.312.SG rec.357.SG bond rec.274.SG rec.285.SG bond rec.388.SG rec.434.SG bond rec.433.SG rec.444.SG bond rec.554.SG rec.563.SG bond rec.356.SG rec.365.SG ###Load Ligand frcmod/mol2 loadamberparams ../000.parameters/2BXF_lig.am1bcc.frcmod lig=loadmol2 ../000.parameters/2BXF_lig.am1bcc.mol2 ###Create gas-phase complex gascomplex= combine {rec lig} ###Write gas-phase pdb savepdb gascomplex 2BXF.gas.complex.pdb ###Write gas-phase toplogy and coord files for MMGBSA calc saveamberparm gascomplex 2BXF.gas.complex.prmtop 2BXF.gas.complex.rst7 saveamberparm rec 2BXF.gas.receptor.prmtop 2BXF.gas.receptor.rst7 saveamberparm lig 2BXF.gas.ligand.prmtop 2BXF.gas.ligand.rst7 ###Create solvated complex (albeit redundant) solvcomplex= combine {rec lig} ###Solvate the system solvateoct solvcomplex TIP3PBOX 12.0 ###Neutralize system (it will add either Na or Cl depending on net charge) addions solvcomplex Cl- 0 addions solvcomplex Na+ 0 ###Write solvated pdb file savepdb solvcomplex 2BXF.wet.complex.pdb ###Check the system charge solvcomplex check solvcomplex ###Write Solvated topology and coord file saveamberparm solvcomplex 2BXF.wet.complex.prmtop 2BXF.wet.complex.rst7