On 12/12/12 12:37 AM, James Starlight wrote:
That the mollecule that I made

[ CRO ]
  [ atoms ]
CG2   CB      0.0284 0
CD1   CB     -0.1500 1
CD2   CB     -0.1500 2
CE1   CB     -0.1500 3
CE2   CB     -0.1500 4
CZ    CB      0.0825 5
HL    H       0.3600 39
NR    NH1    -0.9900  6
CA1   CR      0.3310 7
CB1   CR      0.2800 8
CG1   CR      0.0000 9
OG1   OR     -0.6800 10
C1    C=O     0.4490 11
N2    N=C    -0.6210 12
N3    NC=O   -0.4201 13
C2    C=O     0.6156 14
O2    O=C    -0.5700 15
CA2   C=C     0.1854 16
CA3   CR      0.3611 17
C     C=O     0.6590 18
O3    O=C    -0.5700 19
CB2   C=C    -0.1784 20
OH    OR     -0.5325 21
HA1   HCMM    0.0000 22
HB1   HCMM    0.0000 23
HA32  HCMM    0.0000 24
HA33  HCMM    0.0000 25
HD1   HCMM    0.1500 26
HD2   HCMM    0.1500 27
HE1   HCMM    0.1500 28
HE2   HCMM    0.1500 29
HH    HOCC    0.4500 30
HG11  HCMM    0.0000 31
HG12  HCMM    0.0000 32
HG13  HCMM    0.0000 33
HOG1  HOR     0.4000 34
HB2   HCMM    0.1500 35
OH    OR     -0.6500 36
H1    HOCO    0.5000 37

  [ bonds ]
HCMM CR
CR   CR
OR   HOR
OR   CR
HCMM CB
HL   NR
NH1  CR
HOCC OR
CR   C=O
CB   CB
OR   CB
N=C  C=O
N=C  C=C
C=O  NC=O
CB   C=C
C=C  C=C
C=C  C=O
NC=O CR
HOCO OR
C=C  HCMM
OR   C=O
C=O  O=C
  [ impropers ]
CG2  CD1  CB2  CD2
CD1  CE1  CG2  HD1
CD2  CE2  CG2  HD2
CE2  CZ   CD2  HE2
CB2  CA2  CG2  HB2
CA2  C2   CB2  N2
C1   CA1  N2   N3
CA1  CB1  C1   NR
CA1  CB1  C1   HA1
CB1  OG1  CA1  CG1
CB1  CG1  CA1  HB1
C2   N3   CA2  O2
N3   C2   C1   CA3
CA3  C    N3   HA33
CA3  HA33 N3   HA32
C    OH   CA3  O3
CZ   CE1  CE2  OH
CE1  CZ   CD1  HE1
NR   C1   CA1 HL

CRO    14
3       4       HG1     CG1     CB1     CA1
1       5       HB1     CB1     CA1     OG1     CG1
1       2       HOG1    OG1     CB1     CA1
1       5       HA1     CA1     NR      C1      CB1
1       2       H1      OH      C       O3
1       1       HL      NR      C1      CA1
1       6       HA32    CA3     C       N3
1       6       HA33    CA3     C       N3
1       1       HB2     CB2     CG2     CA2
1       1       HD1     CD1     CG2     CE1
1       1       HD2     CD2     CG2     CE2
1       1       HE1     CE1     CD1     CZ
1       1       HE2     CE2     CD2     CZ
1       2       HH      OH      CZ      CE1


The only proble which I've forced with is in the N-term and
non-integer charge ( 0.290).


You have another serious problem, in that your [bonds] and [impropers] directives specify atom types instead of names. There's no way that can work.

Why not use standard backbone charges that are shared by all amino acids in CHARMM? All the residues are the same with respect to the backbone.

-Justin

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

Justin A. Lemkul, Ph.D.
Research Scientist
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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