[AMBER] Diffenent EPB in MMPBSA result with

From: Liu Denis <cndenis.gmail.com>
Date: Wed, 22 Aug 2012 17:03:56 +0800

Dear AMBER Members:
      I calculated MMPBSA with idecomp = 1 and 3, the EPB output is
very different.
EPB with idecomp=1 is same as idecomp=0.
Is it normal and why?

Here is result with idecomp = 3:

Differences (Complex - Receptor - Ligand):
Energy Component Average Std. Dev. Std. Err. of Mean
-------------------------------------------------------------------------------
BOND 0.0000 0.0001 0.0000
ANGLE -0.0000 0.0000 0.0000
DIHED -0.0000 0.0000 0.0000
VDWAALS -38.2142 2.4703 0.3459
EEL -10.4690 6.9120 0.9679
1-4 VDW -0.0000 0.0001 0.0000
1-4 EEL 0.0000 0.0000 0.0000
EPB 15.3685 2.3473 0.3287
ENPOLAR -23.5715 1.2483 0.1748
EDISPER 41.0299 1.2261 0.1717

DELTA G gas -48.6832 6.6882 0.9365
DELTA G solv 32.8270 2.4099 0.3375

DELTA TOTAL -15.8562 7.5172 1.0526



Here is idecomp = 1

Differences (Complex - Receptor - Ligand):
Energy Component Average Std. Dev. Std. Err. of Mean
-------------------------------------------------------------------------------
BOND 0.0000 0.0001 0.0000
ANGLE -0.0000 0.0000 0.0000
DIHED -0.0000 0.0000 0.0000
VDWAALS -38.2142 2.4703 0.3459
EEL -10.4690 6.9120 0.9679
1-4 VDW -0.0000 0.0001 0.0000
1-4 EEL 0.0000 0.0000 0.0000
EPB 32.5072 4.8192 0.6748
ENPOLAR -23.5715 1.2483 0.1748
EDISPER 41.0299 1.2261 0.1717

DELTA G gas -48.6832 6.6882 0.9365
DELTA G solv 49.9657 4.8976 0.6858

DELTA TOTAL 1.2825 5.2511 0.7353
-- 
----GnuPG Public Key----
Key ID: 0x488C9571
Fingerprint: C292 D888 D713 4D13 57F0  C07D 16F3 10C9 488C 9571
_______________________________________________
AMBER mailing list
AMBER.ambermd.org
http://lists.ambermd.org/mailman/listinfo/amber
Received on Wed Aug 22 2012 - 02:30:02 PDT
Custom Search