[AMBER] Regarding Anal energy decomposition

From: aneesh cna <aneeshcna.gmail.com>
Date: Tue, 21 Dec 2010 03:51:10 -0500

Dear Amber users,

        I am using Amber 9.0 for simulation. I am try to use 'ANAL' module
for calculating the interaction energy matrix. But something wrong happens
with the output files. Even though Anal reads the input groups correctly
but it is not write the energy for all the groups in the output file (
energy values are showing zero) as shown below

*Input group read correctly......
*
***************************************************************************************************************************
         NUMBER OF ATOMS = 1222


          loading the groups for analysis

    ----- READING GROUP 1; TITLE:
  MOL_1
 GRP 1 RES 35 TO 58
      Number of atoms in this group = 758
    ----- READING GROUP 2; TITLE:
 MOL_2
cation
      ALL ATOMS THAT MEET 1 OF THE FOLLOWING SPECIFICATIONS WILL BE INCLUDED
IN GROUP BELOW

      GRAPH NAME = H1 SYMBOL = * TREE SYMBOL = * RESIDUE TYPE
= *

 GRP 2 RES 1 TO 12
 GRP 2 RES 14 TO 22
 GRP 2 RES 24 TO 34
      Number of atoms in this group = 15
    ----- READING GROUP 3; TITLE:
  MOL_3
 GRP 3 RES 1 TO 12
 GRP 3 RES 14 TO 22
 GRP 3 RES 24 TO 34
      Number of atoms in this group = 392
    ----- END OF GROUP READ -----

    non-bonded pairs are generated in residue base
    and stored as residue pairs

    number of non-bonded residue pairs = 3240

     individual pair energies greater than 10.00 kcal/mol:
*************************************************************************************************************************

*no energy for Group TWO..................*

*************************************************************************************************************************

            TOTAL INTERACTION ENERGY MATRIX

                1 2 3 4
    1 1353.628 0.000 -353.658 -6353.627
    2 0.000 0.000 0.000 0.000
    3 -353.658 0.000 49.594 -440.323
    4 -6353.627 0.000 -440.323 2675.458

          INDIVIDUAL GROUPS INTERACTION

     GROUP INTRA INTER TOTAL

         1 1353.63 -6707.28 -5353.66
         2 0.00 0.00 0.00
         3 49.59 -793.98 -744.39
         4 2675.46 -6793.95 -4118.49

*****************************************************************************************************************************
*
When I tried by changing the group, Anal showing some weird results in the
output file as shown below.........*

*****************************************************************************************************************************
        NUMBER OF ATOMS = 1222


          loading the groups for analysis

    ----- READING GROUP 1; TITLE:
  MOL_1
 GRP 1 RES 35 TO 58
      Number of atoms in this group = 758
    ----- READING GROUP 2; TITLE:
 *MOL_2
 GRP 2 RES 1 TO 12
 GRP 2 RES 14 TO 22
 GRP 2 RES 24 TO 34
      Number of atoms in this group = 392
    ----- READING GROUP 3; TITLE:
  MOL_3
 GRP 3 RES 1 TO 12
 GRP 3 RES 14 TO 22
 GRP 3 RES 24 TO 34
      Number of atoms in this group = 392*
    ----- END OF GROUP READ -----

    non-bonded pairs are generated in residue base
    and stored as residue pairs

    number of non-bonded residue pairs = 3240

     individual pair energies greater than 10.00 kcal/mol:
*************************************************************************************************************************

*Even though the group 2 and 3 ( MOL_2 & MOL_3) are same, there is no energy
values written for Group 2 in the output*.

*******************************************************************************************************************************

          TOTAL INTERACTION ENERGY MATRIX

            1 2 3 4
    1 1355.437 0.000 -485.420 -6381.657
    2 0.000 0.000 0.000 0.000
    3 -485.420 0.000 98.573 -403.917
    4 -6381.657 0.000 -403.917 2677.581

          INDIVIDUAL GROUPS INTERACTION

     GROUP INTRA INTER TOTAL

         1 1355.44 -6867.08 -5511.64
         2 0.00 0.00 0.00
         3 98.57 -889.34 -790.76
         4 2677.58 -6785.57 -4107.99
************************************************************************************************************************************

*In the Anal output I can also able to see some error mesages
like................ *

*********************************************************************************************************************
  1- 1 1104- 1111 (P -CT) 1-4 Interaction 4.07 -0.073
12.903
 *DIHEDRAL ANGLE ERROR (??): 1513 3495 3498 3507 3510
 DIHEDRAL ANGLE ERROR (??): 1514 3495 3498 3507 3510
 DIHEDRAL ANGLE ERROR (??): 1515 3495 3498 3507 351*0
   1- 1 1155- 1159 (N2-C ) 1-4 Interaction 3.51 -0.049
-61.261
   1- 1 1154- 1160 (CA-O ) 1-4 Interaction 3.37 -0.056
-45.356
   1- 1 1152- 1159 (CM-C ) 1-4 Interaction 2.77 1.388
-41.451
   1- 1 1146- 1166 (OS-OS) 1-4 Interaction 3.51 -0.081
15.203
   1- 1 1146- 1159 (OS-C ) 1-4 Interaction 3.60 -0.060
-22.552
   1- 1 1144- 1167 (CT-P ) 1-4 Interaction 3.99 -0.074
13.182
   1- 1 1140- 1146 (OS-OS) 1-4 Interaction 3.12 -0.055
16.240
* DIHEDRAL ANGLE ERROR (??): 1560 3417 3420 3429 3480
 DIHEDRAL ANGLE ERROR (??): 1561 3417 3420 3429 3480
 DIHEDRAL ANGLE ERROR (??): 1562 3417 3420 3429 3480*
   1- 1 1137- 1144 (P -CT) 1-4 Interaction 4.05 -0.074
12.980
***********************************************************************************************************************

Can anyone help me to figure out this problem?


Thanks in advance

Sincerely
Aneesh
_______________________________________________
AMBER mailing list
AMBER.ambermd.org
http://lists.ambermd.org/mailman/listinfo/amber
Received on Tue Dec 21 2010 - 01:00:02 PST
Custom Search