Contacts of the helix formed by residues 431 - 454 (chain A) in PDB entry 5DO7


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with PRO 431 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    427A  VAL      3.2    25.1    -      -       -      +
    428A  GLY      4.5     1.8    -      -       -      -
    429A  ALA      3.4     3.8    -      -       -      +
    430A  THR*     1.4    94.4    -      -       -      +
    432A  TYR*     1.3    59.5    +      -       -      +
    433A  THR      3.3     0.2    -      -       -      -
    434A  GLY*     2.8    21.8    +      -       -      -
    435A  MET*     3.2     9.5    +      -       -      +
    509A  PRO*     3.6    21.1    -      -       +      +
    512A  ILE*     5.5     0.2    -      -       +      -
    513A  GLY*     3.5    14.4    -      -       -      +
    538A  SER*     3.9    28.0    -      -       -      +
    567A  PHE*     4.1    21.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 432 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    428A  GLY      4.6     5.8    -      -       -      +
    429A  ALA*     2.8    25.1    +      -       +      +
    431A  PRO*     1.3    74.6    -      -       -      +
    433A  THR*     1.3    65.7    +      -       +      +
    434A  GLY      3.0     0.3    +      -       -      -
    435A  MET*     3.0    29.2    +      -       +      +
    436A  LEU*     2.8    50.1    +      -       +      +
    531A  ASN*     4.1    18.1    +      -       -      -
    535A  ALA*     4.1    22.8    -      -       +      +
    538A  SER*     4.5     5.4    +      -       -      +
    539A  ILE*     5.5     6.1    -      -       +      -
    461B  PHE*     5.4     5.5    -      +       -      -
    564B  ASN*     5.2    10.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 433 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    392A  GLN*     3.8    24.1    +      -       +      -
    393A  ASN*     4.1    18.6    -      -       -      +
    396A  MET*     5.1    15.0    -      -       +      -
    429A  ALA      2.8    18.6    +      -       -      +
    430A  THR*     3.0    16.6    +      -       -      -
    432A  TYR*     1.3    74.6    -      -       +      +
    434A  GLY*     1.3    55.5    +      -       -      +
    436A  LEU*     3.5     9.2    -      -       +      +
    437A  ASN*     2.8    34.1    +      -       -      +
    510A  HIS*     2.6    35.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 434 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    430A  THR      3.9     0.4    +      -       -      -
    431A  PRO      2.8    13.5    +      -       -      -
    433A  THR*     1.3    81.1    +      -       -      +
    435A  MET*     1.3    55.9    +      -       -      -
    437A  ASN*     2.9     9.2    -      -       -      +
    438A  ALA*     2.8    21.5    +      -       -      +
    510A  HIS*     3.6    23.6    -      -       -      -
    514A  GLU*     3.1    24.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 435 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    431A  PRO      3.2     5.0    +      -       -      +
    432A  TYR*     3.0    38.5    +      -       +      +
    434A  GLY*     1.3    71.6    -      -       -      +
    436A  LEU*     1.3    73.4    +      -       -      +
    438A  ALA      2.8     0.6    +      -       -      +
    439A  VAL*     2.8    29.3    +      -       +      +
    513A  GLY      3.9     0.8    -      -       -      -
    517A  THR*     3.0    36.5    +      -       +      +
    531A  ASN*     2.8    42.6    -      -       -      +
    534A  VAL*     3.4    33.4    -      -       +      +
    535A  ALA*     3.7    18.6    -      -       -      +
    538A  SER*     4.2     2.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 436 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    388A  THR*     5.7     5.2    -      -       +      -
    392A  GLN*     3.2    26.2    -      -       +      +
    432A  TYR*     2.8    37.2    +      -       +      +
    433A  THR*     3.5    10.8    -      -       +      +
    435A  MET*     1.3    84.0    -      -       -      +
    437A  ASN*     1.3    66.5    +      -       -      +
    439A  VAL*     4.2     2.7    -      -       -      -
    440A  ASN*     2.6    43.7    +      -       -      +
    531A  ASN*     4.7     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 437 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    388A  THR*     5.4     0.5    -      -       -      -
    389A  ARG*     3.2    43.8    +      -       -      +
    392A  GLN*     2.7    28.0    +      -       -      +
    433A  THR      2.8    12.8    +      -       -      +
    434A  GLY      2.9    14.8    -      -       -      +
    436A  LEU*     1.3    80.6    -      -       -      +
    438A  ALA*     1.3    61.3    +      -       -      +
    441A  LEU*     3.2    26.7    +      -       -      +
    467A  TYR*     3.9     0.9    -      -       -      -
    475A  SER*     3.7     3.8    +      -       -      -
    510A  HIS*     3.5    16.8    +      -       -      -
    514A  GLU*     3.0    23.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 438 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    434A  GLY      2.8    14.7    +      -       -      +
    435A  MET      2.8     3.2    +      -       -      -
    437A  ASN*     1.3    66.0    -      -       -      +
    439A  VAL*     1.3    58.3    +      -       -      +
    440A  ASN      2.7    14.2    +      -       -      -
    441A  LEU      2.8    13.2    +      -       -      -
    442A  PHE*     2.8    17.4    +      -       +      +
    467A  TYR*     3.2    20.0    -      -       +      +
    514A  GLU*     3.7    18.8    -      -       -      +
    517A  THR*     3.6    25.6    -      -       +      -
    518A  LEU*     4.6     2.5    -      -       +      +
    521A  LEU*     4.4     3.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 439 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    435A  MET      2.8    27.2    +      -       -      +
    436A  LEU*     3.8     5.8    -      -       -      +
    438A  ALA*     1.3    73.6    -      -       -      +
    440A  ASN*     1.3    69.7    +      -       -      +
    443A  PRO*     3.2    23.3    -      -       -      +
    517A  THR*     3.9    10.8    -      -       +      +
    521A  LEU*     3.8    13.2    -      -       +      -
    527A  PRO*     3.6    39.6    -      -       +      +
    528A  ASN*     5.1     1.1    -      -       -      -
    530A  VAL*     4.7     2.9    -      -       +      -
    531A  ASN*     3.6    32.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 440 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    436A  LEU*     2.6    47.6    +      -       -      +
    437A  ASN      3.5     2.4    +      -       -      +
    438A  ALA      2.7     5.5    +      -       -      -
    439A  VAL*     1.3    85.1    -      -       -      +
    441A  LEU*     1.3    70.9    +      -       +      +
    443A  PRO*     3.9     4.3    -      -       -      +
    444A  VAL*     5.3     1.4    -      -       -      +
    557B  HIS*     5.2    10.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 441 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    379A  LEU*     3.3    33.7    -      -       +      -
    382A  ASN*     5.9     0.9    -      -       -      +
    385A  ALA*     4.4    22.9    -      -       +      +
    388A  THR*     5.7     2.2    -      -       -      +
    389A  ARG*     3.3    29.8    -      -       +      +
    437A  ASN*     3.5    17.5    -      -       -      +
    438A  ALA      2.8     8.6    +      -       -      +
    440A  ASN*     1.3    83.7    -      -       +      +
    442A  PHE*     1.3    58.8    +      -       -      +
    443A  PRO*     3.3     0.4    -      -       -      +
    444A  VAL*     2.9    31.4    -      -       -      +
    445A  LEU*     3.9     8.1    -      -       +      +
    467A  TYR*     4.3    10.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 442 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    438A  ALA      2.8    23.6    +      -       -      +
    441A  LEU*     1.3    74.5    -      -       -      +
    443A  PRO*     1.3    68.8    -      -       +      +
    445A  LEU*     2.8    30.2    +      -       +      +
    446A  ARG*     2.8    42.7    +      -       +      -
    463A  MET*     4.5     6.5    -      -       +      -
    464A  MET*     4.1    19.7    -      -       +      -
    467A  TYR*     3.4    50.5    -      +       +      -
    518A  LEU*     3.6    21.5    -      -       +      -
    521A  LEU*     4.4    18.2    -      -       +      -
    642A  PHE*     4.0    19.3    -      +       -      -
----------------------------------------------------------
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Residues in contact with PRO 443 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    439A  VAL*     3.2    28.0    -      -       -      +
    440A  ASN      3.9     5.2    -      -       -      +
    441A  LEU      3.3     4.7    -      -       -      +
    442A  PHE*     1.3    93.2    -      -       +      +
    444A  VAL*     1.3    63.7    +      -       -      +
    446A  ARG*     3.1    18.3    +      -       +      +
    447A  ALA*     2.8    28.6    +      -       -      +
    521A  LEU*     5.0     4.3    -      -       +      -
    527A  PRO*     4.0    25.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 444 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138A  LEU      5.4     2.7    -      -       -      +
    139A  LEU*     3.9    27.8    -      -       +      -
    140A  SER*     5.3     8.3    -      -       -      +
    378A  ASN*     5.3     4.5    -      -       -      +
    440A  ASN      5.3     2.0    -      -       -      +
    441A  LEU*     2.9    23.8    -      -       -      +
    443A  PRO*     1.3    75.5    -      -       +      +
    445A  LEU*     1.3    67.0    +      -       +      +
    447A  ALA*     3.3     3.9    +      -       -      +
    448A  VAL*     2.8    33.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 445 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139A  LEU*     4.7    10.1    -      -       +      -
    375A  VAL*     3.4    35.7    -      -       +      -
    378A  ASN*     4.9    15.0    -      -       -      +
    379A  LEU*     6.5     1.1    -      -       +      -
    441A  LEU*     3.9    21.1    -      -       +      +
    442A  PHE*     2.8    22.2    +      -       +      +
    444A  VAL*     1.3    82.1    -      -       +      +
    446A  ARG*     1.3    58.0    +      -       -      +
    448A  VAL*     3.3     8.9    -      -       -      +
    449A  SER*     2.8    35.4    +      -       -      -
    463A  MET*     3.3    31.4    -      -       +      +
    467A  TYR*     4.8    13.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 446 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    442A  PHE*     2.8    37.0    +      -       +      +
    443A  PRO*     3.3    16.6    +      -       -      +
    445A  LEU*     1.3    75.7    -      -       -      +
    447A  ALA*     1.3    56.7    +      -       -      +
    449A  SER*     3.1     9.8    +      -       -      -
    450A  ASP*     2.8    35.9    +      -       -      +
    521A  LEU*     3.3    50.5    +      -       -      +
    525A  GLN*     2.7    53.1    +      -       -      +
    527A  PRO*     4.1    10.7    -      -       -      +
    642A  PHE*     4.9     3.1    -      -       +      -
    645A  ARG*     3.4    29.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 447 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137A  THR*     4.9     6.2    +      -       +      +
    443A  PRO      2.8    18.3    +      -       -      +
    444A  VAL*     4.0     3.4    -      -       -      +
    446A  ARG*     1.3    74.8    -      -       +      +
    448A  VAL*     1.3    61.1    +      -       -      +
    450A  ASP*     3.1    15.6    -      -       +      +
    451A  GLN*     2.8    29.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 448 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137A  THR*     3.8    37.4    +      -       -      +
    138A  LEU*     4.6     5.6    -      -       +      -
    139A  LEU*     4.1    22.7    -      -       +      -
    374A  ARG*     4.7     0.9    -      -       -      +
    444A  VAL*     2.8    17.2    +      -       +      +
    445A  LEU*     3.3    13.0    -      -       -      +
    447A  ALA*     1.3    74.9    -      -       -      +
    449A  SER*     1.3    62.5    +      -       -      +
    451A  GLN*     4.0     2.4    -      -       -      +
    452A  GLU*     2.8    53.1    +      -       +      +
    458A  TYR*     3.7     5.6    -      -       -      +
    463A  MET*     3.7    17.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 449 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    445A  LEU      2.8    12.0    +      -       -      -
    446A  ARG*     3.1    12.3    -      -       -      -
    448A  VAL*     1.3    71.2    -      -       -      +
    450A  ASP*     1.3    70.3    +      -       -      +
    453A  SER*     2.8    26.3    +      -       -      -
    458A  TYR*     3.6    15.6    -      -       -      -
    460A  LYS*     4.3    16.4    -      -       -      -
    463A  MET*     2.8    46.0    -      -       -      +
    642A  PHE*     6.4     1.8    -      -       -      -
    645A  ARG*     5.7     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 450 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    446A  ARG      2.8    14.0    +      -       -      +
    447A  ALA*     3.1    17.2    +      -       -      +
    449A  SER*     1.3    80.4    -      -       -      +
    451A  GLN*     1.3    63.9    +      -       -      +
    452A  GLU      3.0     0.2    +      -       -      -
    453A  SER*     3.4     6.4    +      -       -      -
    454A  GLN*     3.4    17.9    +      -       -      +
    460A  LYS*     3.5    23.9    +      -       -      +
    525A  GLN*     5.0     0.2    +      -       -      -
    645A  ARG*     2.5    50.1    +      -       -      -
    649A  ILE*     4.6     9.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 451 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133A  LEU*     3.6    31.2    -      -       +      +
    135A  SER*     3.3    29.5    +      -       -      -
    136A  ASP*     3.6     2.6    -      -       -      +
    137A  THR*     2.6    49.5    +      -       -      +
    138A  LEU*     5.2     0.3    -      -       -      +
    202A  SER*     5.5     2.1    +      -       -      -
    447A  ALA      2.8    17.6    +      -       -      +
    448A  VAL*     4.6     2.5    -      -       -      +
    450A  ASP*     1.3    73.1    -      -       -      +
    452A  GLU*     1.3    68.5    +      -       +      +
    454A  GLN*     3.9    16.7    -      -       -      +
    455A  ASP*     3.9    11.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 452 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137A  THR      5.9     0.4    -      -       -      +
    138A  LEU*     5.9     4.5    -      -       +      +
    151A  THR*     4.5    11.9    +      -       -      +
    154A  LEU*     5.9     0.2    -      -       -      +
    374A  ARG*     2.8    37.9    +      -       -      -
    448A  VAL*     2.8    40.8    +      -       +      +
    449A  SER      3.9     0.4    -      -       -      +
    451A  GLN*     1.3    74.3    -      -       +      +
    453A  SER*     1.3    68.6    +      -       -      +
    454A  GLN      3.1     1.6    -      -       -      -
    455A  ASP*     2.8    22.7    +      -       -      +
    456A  GLY      3.4     5.0    +      -       -      -
    457A  LEU*     3.8    24.2    -      -       +      +
    458A  TYR*     3.4    29.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 453 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126A  GLN*     5.4     0.2    -      -       -      +
    449A  SER      2.8    23.0    +      -       -      -
    452A  GLU*     1.3    73.0    -      -       -      +
    454A  GLN*     1.3    54.2    +      -       -      +
    456A  GLY*     2.8    27.2    +      -       -      -
    457A  LEU      4.3     5.8    -      -       -      +
    458A  TYR*     2.6    34.6    +      -       -      +
    459A  GLN*     3.6     9.2    -      -       -      +
    460A  LYS*     3.8    23.4    +      -       -      +
    646A  ASP*     5.3     1.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 454 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102A  ARG*     3.4    35.0    +      -       +      +
    103A  LEU*     4.9     2.6    -      -       -      +
    126A  GLN*     3.7    22.1    +      -       -      +
    131A  TYR*     5.1     3.5    -      -       +      -
    133A  LEU*     4.1    18.1    -      -       +      +
    450A  ASP      3.4    12.6    +      -       -      +
    451A  GLN*     3.9    13.6    -      -       -      +
    452A  GLU      3.1     0.2    -      -       -      -
    453A  SER*     1.3    78.3    -      -       -      +
    455A  ASP*     1.3    63.0    +      -       -      +
    460A  LYS*     5.2     6.2    -      -       -      +
    649A  ILE      4.7     4.0    +      -       -      -
    650A  SER*     3.1    30.5    +      -       -      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il