Amber网上教程地址 zz

Amber网上教程地址 zz



http://www.rosswalker.co.uk/tutorials/amber_workshop/


http://amber.scripps.edu/tutorials/


amber8/9

http://amber.scripps.edu/dbase.html

amber ff in gmx

http://folding.stanford.edu/ffamber/

other

http://www.chpc.utah.edu/%7Echeatham/software.html

AMBER ????SMD??
????????AMBER????(
umbrella.RST

# Change distance between atoms 1771
and 3787 from 63 A to 253 A

&rst iat=1771,3787,r1=10., r2=63.,r3=63.,r4=210.,rk2=10.,rk3=10., /

smd.in

Sample pulling input
&cntrl
nstlim=1000000, cut=99.0, igb=1, saltcon=0.1,
ntpr=10, ntwr=10, ntt=3, gamma_ln=5.0,
ntx=5, irest=1, ntwx=10, ig = 256251,
ntc=2, ntf=2, tol=0.000001,
dt=0.002, ntb=0, tempi=310., temp0=310.,
jar=1,
/
&wt type=DUMPFREQ, istep1=1, /
&wt type=END, /
DISANG=dist.RST
DUMPAVE=dist_vs_t
LISTIN=POUT
LISTOUT=POUT


amber????????
amber, ???, ??
???????????
?????????????????????????????????????????????????????????????????????????????????????????amber??antechamber ?????????????????????????????????antechamber????mopac???????gaussian????????gaussian??????
???????sybyl??????????????gaussian??????????????????????????gaussian??????????antechamber?????????????????????????
?????????????mol2????????????antechamber????gaussian??????????
antechamber -i 49.mol2 -fi mol2 -o 49.in -fo gzmat
??????49.in??????windows?????gaussian????????????????????????????
???????????????
??????49.out??????????????antechamber??????????
antechamber -i 49.out -fi gout -o 49mod.mol2 -fo mol2 -c resp
????????????mol2?????????????????????????????????mol2?????
???????????????????????????????????????????gaff???????????
?????
parmchk -i 49mod.mol2 -f mol2 -o 49mod
????????????49mod??????
???????????
amber???leap?????????????????PDB?????????????????????????????????
PDB?????????????????????????????????????????????????????????
????????????????????
ATOM 12 1H ARG A 82 12.412 8.891 34.128 1.00 0.00 H
?PDB??????????????13??14???H???????grep?????13??14???H??
?????
grep -v ^.............H 1t4j.pdb > x
grep -v ^............H x > 1t4j_noh.pdb
????????????????????????????????????????????????????????
????????????????????????????????????????????????leap???
????????????????????????????????????????
??????????????????????????????????????????????????????unit?????
?????????????????????????????????????????CYX?????CYS
?????????????????????????????????????????
???????????????????????????????????????PDB????????????????????
antechamber ???49mod.mol2??????????????leap???????????????????????????
????????????????????????
????????????????49mod.mol2???????????????????????????????????
????????????????????????????????????????????????????????
??????????????
????????????????????????????????????????????????????????????
???????
????????????????????????
???????????????
?amber??????????????????????????????????????????????????????
?????????????????????leap ?????
amber????leap????????????tleap???????????Xleap???amber?????????????????
?????????????????????tleap???leap?????????????????????
??tleap??shell?????tleap?leap?????shell????
-I: Adding /usr/local/amber8/antechamber-1.23/dat/leap/prep to search path.
-I: Adding /usr/local/amber8/antechamber-1.23/dat/leap/lib to search path.
-I: Adding /usr/local/amber8/antechamber-1.23/dat/leap/parm to search path.
-I: Adding /usr/local/amber8/antechamber-1.23/dat/leap/cmd to search path.
Welcome to LEaP!
(no leaprc in search path)
>
??>?leap????
?????????amber????????????????????????????????amber????????????
???????????leap????????????
amber???????????????????gaff?02???????
>source leaprc.gaff
>source leaprc.ff02
???????????
?????list???????????
????????????unit???20?????????????????????
???????????????????????????
>loadamberparams 49mod
????????,?????
>MOL = loadmol2 49mod.mol2
??MOL?unit????????????pdb????????????????????????pdb???????
?????list????????????unit:
???????????
????pdb????????
>comp = loadpdb 1t4j_noh.pdb
??????????????????????unit??atom?????????????????pdb?????????
??????????????????????????????????????????
Creating new UNIT for residue: FRJ sequence: 1
Created a new atom named: O36 within residue: .R
Created a new atom named: S33 within residue: .R
Created a new atom named: O35 within residue: .R
Created a new atom named: N34 within residue: .R
???????????????????PDB????????????leap?????????????????????
??????????
Added missing heavy atom: .R.A
Added missing heavy atom: .R.A
Added missing heavy atom: .R.A
Added missing heavy atom: .R.A
??????????????????CYX????????????????????????????????????
??bond??????????????
>bond comp.35.SG comp.179.SG
??comp???????????35?179??????SG?CYX?????????????comp.35.SG?????????
?????
????????????????????????????????????????????????
>solvatebox comp TIP3PBOX 10.0
solvatebox?????????????????comp????????TIP3PBOX??????????10.0???????
?????????0?????????????????????????????????????????????????
>addions comp Na+ 0
???????????????????????????????
????????????????????????????????????????????leap??????????
???????????????????????????????
>saveoff comp 1taj.off
????????off???????????????????
>saveamberparm comp 1t4j.prmtop 1t4j.inpcrd
Checking Unit.
Building topology.
Building atom parameters.
Building bond parameters.
Building angle parameters.
Building proper torsion parameters.
Building improper torsion parameters.
total 1 improper torsion applied
Building H-Bond parameters.
Not Marking per-residue atom chain types.
Marking per-residue atom chain types.
(Residues lacking connect0/connect1 -
these dont have chain types marked:
res total affected
CMET 1
)
(no restraints)
>quit
?????????????????????????????????????????????ambpdb???????
?pdb??????????????????????
[snowyowls@localhost actualamber]$ ambpdb -p 1t4j.prmtop <1t4j.inpcrd> kankan.pdb
| New format PARM file being parsed.
| Version = 1.000 Date = 09/08/06 Time = 16:36:09
[snowyowls@localhost actualamber]$
??????????????????????????????????????????
????????
?amber???????????????????????????????????1t4j.prmtop ?1t4j.inpcrd????
?????????????????????
????????????????????????????????????????????????????????
???????????????????????????????????????
?????sander???????sander????????????????????????????sander??????
????????????????????????????min_1.in
Initial minimisation of our structures
&cntrl
imin=1, maxcyc=4000, ncyc=2000,
cut=10, ntb=1,ntr=1,
restraint_wt=0.5
restraintmask=:1-283
/
???????????????????? &cntrl?/???????????
??imin=1??????????maxcyc=4000?????????4000??ncyc=2000??????????4000???
? 2000??????????2000?????????????????????????????????????
????NTMIN???NTMIN =0???????????NTMIN=2???????????????=3?=4???????xmin??lmod?
???????????
????cut=10?????????????????? ntb=1??????????????????????????????????
???????????????????ntb=1???????????????ntb=0?ntr=1???????????????????
??????????????
???????????????????restraint_wt=0.5????????????????????????????????
????????????????????????????????????????????????????????????
Kcal/(mol*A)? restraintmask=:1-283???????1?283???????????1-283????????????????284
??????????????????????????????????????????????????tleap???????
?????????????
????sander????????
[snowyowls@localhost actualamber]$ sander -O -i min_1.in -p 1t4j.prmtop -c 1t4j.i
npcrd -ref 1t4j.inpcrd -r 1t4j_min1.rst -o 1t4j_min1.out
????-O???????????-i min_1.in??sander??????min_1.in?-p 1t4j.prmtop?????????
?-c 1t4j.inpcrd???????-ref 1t4j.inpcrd?????????????????????ntr=1???????
sander??-ref???????????????- ref 1t4j.inpcrd????1t4j.inpcrd????????????????
???????????-r 1t4j_min1.rst??????????????????1t4j_min1.rst????-o 1t4j_min1.out
??????????????????1t4j_min1.out????
????????????? 1t4j_min1.rst?????????????????????????????????????
???????????????????min_2.in ?min_3.in
min_2.in
Initial minimisation of our structures
&cntrl
imin=1, maxcyc=5000, ncyc=2500,
cut=10, ntb=1,ntr=1,
restraint_wt=0.5
restraintmask=:1-283@CA,N,C
/
????????????????? :1-283@CA,N,C??1-283??????CA?N?C??????????????????
?????????????????????????????????????????????
min_3.in
Initial minimisation of our structures
&cntrl
imin=1, maxcyc=10000, ncyc=5000,
cut=10, ntb=1,
/
?????????????????????????????
??????????
[snowyowls@localhost actualamber]$ sander -O -i min_1.in -p 1t4j.prmtop -c 1t4j.inpcrd -ref 1t4j.inpcrd -r 1t4j_min1.rst -o 1t4j_min1.out
[snowyowls@localhost actualamber]$ sander -O -i min_2.in -p 1t4j.prmtop -c 1t4j_min1.rst -ref 1t4j_min1.rst -r 1t4j_min2.rst -o 1t4j_min2.out
[snowyowls@localhost actualamber]$ sander -O -i min_3.in -p 1t4j.prmtop -c 1t4j_min2.rst -r 1t4j_heat0.rst -o 1t4j_min3.out
????????????????��
??????? http://www.sciencenet.cn/m/user_content.aspx?id=289031
download
alternative link download