Contacts of the helix formed by residues 413 - 439 (chain H) in PDB entry 6MZL


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 SER 413 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    406H  VAL*     5.8     0.2    -      -       -      +
    410H  PRO*     6.0     3.7    -      -       -      +
    411H  VAL      3.0     6.1    +      -       -      +
    412H  LEU*     1.3    77.8    +      -       -      +
    414H  ASN*     1.3    52.5    +      -       -      +
    415H  ILE*     3.3     4.7    -      -       -      +
    416H  ASP*     3.1    27.5    +      -       -      +
    417H  ARG*     2.7    32.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 414 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320H  ARG*     4.5    15.2    -      -       -      +
    411H  VAL*     2.9    20.3    -      -       -      +
    412H  LEU*     3.5    29.5    -      -       -      +
    413H  SER*     1.3    71.6    -      -       -      +
    415H  ILE*     1.3    62.5    +      -       -      +
    417H  ARG*     3.4    22.1    +      -       -      -
    418H  ILE*     2.9    45.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 415 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    316H  GLN*     4.1    27.8    -      -       +      +
    320H  ARG*     3.4    62.1    -      -       +      +
    324H  ASP*     4.7    15.6    -      -       -      +
    370H  TRP*     5.5     1.2    -      -       +      +
    413H  SER*     4.9     1.1    -      -       -      -
    414H  ASN*     1.3    76.2    -      -       -      +
    416H  ASP*     1.3    69.1    +      -       -      +
    418H  ILE*     4.5     0.7    -      -       -      +
    419H  GLY*     2.8    28.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 416 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    316H  GLN*     4.2     7.6    +      -       -      +
    370H  TRP*     3.1    39.6    -      -       +      +
    406H  VAL*     4.1     9.1    -      -       +      +
    413H  SER*     3.1    28.2    +      -       -      +
    415H  ILE*     1.3    88.3    -      -       -      +
    417H  ARG*     1.3    58.4    +      -       -      +
    420H  ALA*     2.9    31.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 417 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    406H  VAL*     3.8    30.2    +      -       +      +
    407H  LEU*     4.5    17.9    -      -       +      +
    408H  ASP      4.9     4.6    -      -       -      +
    409H  GLY      5.3     0.2    -      -       -      +
    410H  PRO      2.4    31.9    +      -       -      -
    411H  VAL*     3.4    27.4    +      -       -      +
    413H  SER      2.7    18.0    +      -       -      +
    414H  ASN*     3.4    18.8    +      -       -      -
    415H  ILE      3.3     0.4    -      -       -      -
    416H  ASP*     1.3    75.1    -      -       -      +
    418H  ILE*     1.3    65.0    +      -       +      +
    420H  ALA*     3.3     2.9    +      -       -      +
    421H  ASP*     2.9    27.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 418 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    324H  ASP*     4.3    16.4    -      -       +      +
    414H  ASN*     2.9    28.0    +      -       +      +
    417H  ARG*     1.3    81.2    -      -       +      +
    419H  GLY*     1.3    55.0    +      -       -      +
    421H  ASP*     3.8    14.4    -      -       +      +
    422H  HIS*     2.4    46.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 419 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    324H  ASP*     4.8     3.3    +      -       -      -
    370H  TRP*     4.7    13.2    -      -       -      -
    374H  TYR*     4.4     1.4    -      -       -      -
    415H  ILE      2.8    20.5    +      -       -      -
    416H  ASP      3.7     1.3    -      -       -      -
    417H  ARG      3.2     0.2    -      -       -      -
    418H  ILE*     1.3    76.6    -      -       -      +
    420H  ALA*     1.3    57.6    +      -       -      +
    422H  HIS*     3.3    18.2    +      -       -      -
    423H  VAL*     2.9    32.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 420 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    370H  TRP*     3.9    23.3    -      -       +      -
    403H  ILE*     3.7    23.2    -      -       +      +
    406H  VAL*     4.0    10.3    -      -       +      -
    416H  ASP      2.9    18.4    +      -       -      +
    417H  ARG      3.8     2.9    -      -       -      +
    419H  GLY*     1.3    74.9    -      -       -      +
    421H  ASP*     1.3    56.6    +      -       -      +
    423H  VAL*     3.2    12.5    -      -       -      +
    424H  GLN*     2.9    33.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 421 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    417H  ARG*     2.9    14.8    +      -       +      +
    418H  ILE*     3.4    21.1    -      -       +      +
    419H  GLY      3.1     0.2    -      -       -      -
    420H  ALA*     1.3    77.1    -      -       -      +
    422H  HIS*     1.3    59.6    +      -       -      +
    424H  GLN*     3.1    24.9    +      -       -      +
    425H  SER*     3.0    25.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 422 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    324H  ASP*     3.3    49.3    +      -       +      +
    325H  ASN*     4.6    10.5    -      -       -      +
    327H  TRP*     5.0     1.0    -      -       -      +
    328H  ALA*     4.9     1.3    -      -       +      -
    374H  TYR*     3.0    40.2    +      +       -      +
    418H  ILE*     2.4    43.5    +      -       +      +
    419H  GLY*     3.3    19.2    +      -       -      -
    421H  ASP*     1.3    74.8    -      -       -      +
    423H  VAL*     1.3    60.1    +      -       -      +
    425H  SER*     3.4    14.6    -      -       -      +
    426H  LEU*     2.9    30.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 423 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    370H  TRP*     4.1    16.6    -      -       +      -
    373H  ARG*     5.4     2.0    -      -       +      +
    374H  TYR*     3.5    34.7    -      -       +      +
    377H  ILE*     4.3    15.7    -      -       +      -
    403H  ILE*     3.7    22.9    -      -       +      -
    419H  GLY      2.9    19.6    +      -       -      +
    420H  ALA*     3.2    14.1    -      -       -      +
    422H  HIS*     1.3    73.6    -      -       -      +
    424H  GLN*     1.3    60.6    +      -       -      +
    426H  LEU*     3.0     6.8    +      -       -      +
    427H  LEU*     2.9    39.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 424 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    403H  ILE*     3.4    33.0    -      -       +      +
    407H  LEU*     4.2    21.8    -      -       -      +
    420H  ALA      2.9    19.7    +      -       -      +
    421H  ASP*     3.1    24.8    +      -       -      +
    423H  VAL*     1.3    75.4    -      -       -      +
    425H  SER*     1.3    57.1    +      -       -      +
    427H  LEU*     3.7    10.5    -      -       +      +
    428H  LEU*     2.9    33.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 425 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    421H  ASP*     3.0    16.3    +      -       -      -
    422H  HIS*     3.4    20.0    -      -       -      +
    424H  GLN*     1.3    78.0    -      -       -      +
    426H  LEU*     1.3    57.6    +      -       -      +
    428H  LEU*     4.9     2.9    -      -       -      -
    429H  LYS*     2.9    41.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 426 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    328H  ALA*     6.0     0.2    -      -       +      -
    331H  ASP*     4.0    10.3    -      -       +      +
    374H  TYR*     3.5    59.5    -      -       +      +
    377H  ILE*     3.7    22.4    -      -       +      -
    378H  ALA*     4.3     9.9    -      -       +      +
    422H  HIS      2.9    18.8    +      -       -      +
    423H  VAL*     3.0     8.5    +      -       +      +
    425H  SER*     1.3    75.3    -      -       -      +
    427H  LEU*     1.3    58.4    +      -       -      +
    429H  LYS      5.1     0.7    -      -       -      -
    430H  HIS*     2.9    38.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 427 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    363H  TRP*     5.8     1.8    -      -       +      +
    377H  ILE*     4.2    27.1    -      -       +      -
    392H  ILE*     4.4    21.5    -      -       +      -
    396H  LEU*     4.8    21.5    -      -       +      +
    399H  GLU*     5.8     6.7    -      -       +      +
    400H  GLY*     5.9     3.8    -      -       -      +
    403H  ILE*     4.5     9.9    -      -       +      -
    423H  VAL*     2.9    38.0    +      -       +      +
    424H  GLN*     3.7     9.6    -      -       +      +
    425H  SER      3.3     0.2    -      -       -      -
    426H  LEU*     1.3    75.2    -      -       -      +
    428H  LEU*     1.3    55.7    +      -       -      +
    431H  CYS*     2.6    42.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 428 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    424H  GLN      2.9    17.9    +      -       -      +
    425H  SER*     4.2     2.7    -      -       -      +
    427H  LEU*     1.3    74.8    -      -       -      +
    429H  LYS*     1.3    76.8    +      -       +      +
    430H  HIS      3.1     1.6    +      -       -      -
    431H  CYS*     5.0     0.2    -      -       -      -
    432H  ALA*     3.0    37.4    +      -       +      +
    455H  LEU*     3.7    18.4    -      -       +      +
    458H  LEU*     3.6    28.0    -      -       +      +
    459H  LEU*     3.5    36.1    -      -       +      +
    462H  GLN*     4.8     6.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 429 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    425H  SER*     2.9    25.6    +      -       -      +
    426H  LEU*     3.6     2.9    -      -       -      -
    428H  LEU*     1.3    89.6    -      -       +      +
    430H  HIS*     1.3    61.2    +      -       -      +
    432H  ALA*     5.4     2.9    -      -       -      -
    433H  PRO*     5.9     0.4    -      -       -      -
    462H  GLN*     5.5     9.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 430 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    381H  ALA*     2.7    57.1    +      -       +      +
    382H  GLU*     5.1     9.2    -      -       -      -
    384H  GLY*     5.2     2.0    -      -       -      -
    388H  ILE*     4.3    17.1    -      -       +      +
    426H  LEU*     2.9    21.3    +      -       +      +
    429H  LYS*     1.3    80.9    +      -       -      +
    431H  CYS*     1.3    57.4    +      -       +      +
    432H  ALA      3.6     2.0    -      -       -      -
    433H  PRO*     3.3    19.7    -      -       -      +
    434H  VAL*     5.3     1.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 431 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    388H  ILE*     3.7    29.6    -      -       +      -
    392H  ILE*     4.7    13.7    -      -       +      -
    393H  LEU*     5.6     3.6    -      -       -      -
    396H  LEU*     4.9    16.4    -      -       -      -
    427H  LEU*     2.6    26.0    +      -       +      +
    430H  HIS*     1.3    76.5    -      -       +      +
    432H  ALA*     1.3    66.3    +      -       -      +
    433H  PRO*     3.5     2.2    -      -       -      -
    434H  VAL*     3.3    16.0    -      -       -      +
    435H  LEU*     3.9    19.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 432 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    428H  LEU*     3.0    17.6    +      -       +      +
    429H  LYS*     5.4     2.5    -      -       -      -
    431H  CYS*     1.3    77.1    -      -       -      +
    433H  PRO*     1.4    62.6    -      -       +      +
    435H  LEU*     3.1    10.4    +      -       -      +
    436H  ALA*     2.9    25.7    +      -       -      +
    459H  LEU*     4.6    14.8    -      -       -      +
    462H  GLN*     4.1    31.0    -      -       +      +
    463H  VAL*     4.7     3.4    -      -       -      +
    466H  ALA*     5.6     2.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 433 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    429H  LYS      5.9     0.4    -      -       -      -
    430H  HIS*     3.3    21.5    -      -       -      +
    431H  CYS*     3.5     0.7    -      -       -      -
    432H  ALA*     1.4    92.0    -      -       +      +
    434H  VAL*     1.3    65.6    +      -       +      +
    436H  ALA*     3.3    10.1    -      -       +      +
    437H  LYS*     2.9    36.1    +      -       +      +
    466H  ALA*     5.1    11.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 434 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    385H  HIS*     3.4    54.5    -      -       +      +
    388H  ILE*     3.9    26.0    -      -       +      -
    389H  LYS*     4.8    15.4    -      -       +      +
    430H  HIS      5.3     0.9    -      -       -      +
    431H  CYS*     3.3    24.2    -      -       -      +
    433H  PRO*     1.3    82.8    -      -       +      +
    435H  LEU*     1.3    61.7    +      -       +      +
    437H  LYS*     3.4     3.1    +      -       -      +
    438H  LEU*     2.9    33.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 435 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    393H  LEU*     4.5    21.1    -      -       +      -
    396H  LEU*     5.3    11.7    -      -       +      -
    431H  CYS*     4.1    21.8    -      -       -      +
    432H  ALA*     3.1     9.0    +      -       -      +
    434H  VAL*     1.3    80.4    -      -       +      +
    436H  ALA*     1.3    60.5    +      -       -      +
    438H  LEU*     4.1    15.5    -      -       +      +
    439H  ARG*     2.6    68.6    +      -       +      +
    451H  GLU*     5.4     5.8    -      -       +      -
    459H  LEU*     5.7     9.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 436 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    432H  ALA      2.9    13.1    +      -       -      +
    433H  PRO*     3.2    15.9    +      -       +      +
    435H  LEU*     1.3    78.0    -      -       -      +
    437H  LYS*     1.3    61.7    +      -       +      +
    439H  ARG      3.7     9.5    -      -       -      +
    440H  PRO*     5.4     0.2    -      -       -      +
    441H  PRO*     5.2     7.2    -      -       -      +
    463H  VAL*     4.2    30.9    -      -       +      +
    466H  ALA*     4.9     6.3    -      -       +      -
    467H  ARG*     5.8     1.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 437 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    385H  HIS*     3.4    40.4    +      -       +      +
    389H  LYS*     5.7     2.2    -      -       -      +
    433H  PRO*     2.9    18.7    +      -       -      +
    434H  VAL      3.6     7.2    -      -       -      +
    436H  ALA*     1.3    80.4    -      -       +      +
    438H  LEU*     1.3    68.4    +      -       +      +
    439H  ARG      4.7     0.9    -      -       -      +
    440H  PRO*     5.7     0.2    -      -       -      +
    354I  ARG*     5.7     3.0    -      -       -      +
    357I  LYS*     5.7     2.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 438 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    389H  LYS*     3.6    53.6    -      -       +      +
    393H  LEU*     5.6     7.6    -      -       +      -
    434H  VAL*     2.9    22.5    +      -       +      +
    435H  LEU*     4.1    14.1    -      -       +      +
    437H  LYS*     1.3    82.0    -      -       +      +
    439H  ARG*     1.3    66.4    +      -       -      +
    440H  PRO*     3.3     8.1    -      -       -      +
    357I  LYS*     4.7    17.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 439 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    393H  LEU*     5.4     7.3    -      -       -      +
    435H  LEU*     2.6    54.4    +      -       +      +
    436H  ALA*     3.7    11.0    -      -       -      +
    438H  LEU*     1.3    74.8    -      -       -      +
    440H  PRO*     1.3    82.8    -      -       +      +
    441H  PRO*     3.7     2.4    -      -       -      +
    442H  PRO      5.5     1.6    -      -       -      +
    447H  ALA*     3.1    50.0    +      -       -      +
    450H  ALA*     3.5    29.7    +      -       -      +
    451H  GLU*     3.8    12.5    -      -       -      +
----------------------------------------------------------
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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