Contacts of the helix formed by residues 397 - 419 (chain R) in PDB entry 1HI0


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 ALA 397 (chain R).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135R  PHE*     6.4     1.1    -      -       +      -
    283R  ILE*     4.4     2.5    -      -       +      -
    287R  ALA*     4.1    15.5    -      -       +      -
    291R  ARG*     4.3     0.7    -      -       -      +
    357R  PHE*     4.4    20.0    -      -       +      -
    395R  GLN*     2.9    16.6    +      -       -      +
    396R  GLY*     1.3    74.6    -      -       -      +
    398R  THR*     1.3    67.8    +      -       -      +
    399R  ASP*     2.9    11.7    +      -       -      -
    400R  LEU*     2.9    23.9    +      -       +      -
    401R  MET*     3.0    14.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 398 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6F    C      5.3     1.7    +      -       -      -
    329R  ASP*     6.1     0.2    -      -       -      -
    391R  LEU*     3.1    45.4    -      -       +      +
    392R  SER      2.9    35.2    -      -       -      +
    393R  SER*     3.1    21.2    +      -       -      +
    395R  GLN*     3.3    18.8    +      -       +      +
    397R  ALA*     1.3    75.4    -      -       -      +
    399R  ASP*     1.3    59.1    +      -       -      +
    401R  MET      4.0     0.7    -      -       -      -
    402R  GLY*     3.1     9.2    +      -       -      -
    667R  GTP      3.8    23.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 399 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    291R  ARG*     2.7    48.2    +      -       -      +
    295R  TYR*     4.1     9.7    +      -       -      -
    397R  ALA      3.5     5.5    -      -       -      +
    398R  THR*     1.3    75.0    +      -       -      +
    400R  LEU*     1.3    70.8    +      -       -      +
    402R  GLY      3.4     0.3    +      -       -      -
    403R  THR*     2.9    34.9    +      -       -      +
    451R  LYS*     5.1    14.1    +      -       -      -
    452R  SER*     3.6    11.6    +      -       -      +
    629R  GLN      6.1     1.6    -      -       -      +
    667R  GTP      4.2     8.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 400 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134R  MET*     4.8     8.6    -      -       +      +
    135R  PHE*     5.3     5.4    -      -       +      -
    287R  ALA*     3.6    39.7    -      -       +      +
    290R  VAL*     3.7    30.7    -      -       +      -
    291R  ARG*     4.2    14.4    -      -       +      -
    294R  ILE*     4.0    23.6    -      -       +      -
    295R  TYR*     5.7     1.1    -      -       -      +
    397R  ALA*     2.9    11.6    +      -       +      +
    399R  ASP*     1.3    92.3    +      -       -      +
    401R  MET*     1.3    69.6    +      -       +      +
    403R  THR*     3.1     4.1    +      -       -      +
    404R  LEU*     2.7    37.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 401 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134R  MET*     6.4     0.2    -      -       -      -
    135R  PHE*     4.6    15.7    -      -       +      -
    332R  TRP*     3.0    44.2    +      -       +      -
    337R  ARG*     5.9     0.2    -      -       -      -
    340R  ILE*     3.9    23.1    -      -       +      -
    357R  PHE*     3.6    33.2    -      -       +      -
    361R  LEU*     4.3     4.5    -      -       +      -
    391R  LEU*     3.7    21.1    -      -       +      -
    395R  GLN*     4.4     6.7    -      -       -      +
    397R  ALA*     3.0    18.7    +      -       +      +
    398R  THR      4.1     0.4    -      -       -      +
    400R  LEU*     1.3    89.0    -      -       +      +
    402R  GLY*     1.3    63.0    +      -       -      +
    404R  LEU*     3.8     6.9    -      -       +      +
    405R  LEU      3.0    15.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 402 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    328R  HIS*     3.4    27.4    -      -       -      -
    332R  TRP*     4.0     2.0    -      -       -      -
    391R  LEU*     3.8     1.5    -      -       -      +
    398R  THR      3.1    13.0    +      -       -      -
    399R  ASP      3.8     2.5    -      -       -      -
    400R  LEU      3.2     0.2    -      -       -      -
    401R  MET*     1.3    79.7    -      -       -      +
    403R  THR*     1.3    56.8    +      -       -      +
    405R  LEU*     3.6     0.9    -      -       -      +
    406R  MET*     2.9    35.0    +      -       -      +
    452R  SER*     3.9    11.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 403 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134R  MET*     4.2     9.6    -      -       +      -
    294R  ILE*     5.0     3.9    -      -       +      +
    302R  PHE*     3.4    41.1    -      -       +      -
    399R  ASP*     2.9    25.1    +      -       -      +
    400R  LEU*     3.6     7.4    -      -       -      +
    402R  GLY*     1.3    72.4    -      -       -      +
    404R  LEU*     1.3    62.2    +      -       -      +
    406R  MET      3.3     0.4    +      -       -      +
    407R  SER*     2.7    37.4    +      -       -      +
    450R  SER*     4.9     2.7    -      -       -      +
    451R  LYS*     4.2     6.8    -      -       -      +
    452R  SER*     3.2    24.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 404 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127R  PHE*     4.4    11.7    -      -       +      +
    130R  ALA*     3.5    35.0    -      -       +      -
    131R  VAL*     3.9     8.3    -      -       +      +
    134R  MET*     3.2    35.6    -      -       -      +
    135R  PHE*     5.1     4.3    -      -       +      -
    336R  LEU*     4.2    14.1    -      -       +      -
    340R  ILE*     3.9    28.0    -      -       +      -
    400R  LEU      2.7    21.6    +      -       -      +
    401R  MET*     3.8     8.5    -      -       +      +
    403R  THR*     1.3    72.7    -      -       -      +
    405R  LEU*     1.3    65.5    +      -       -      +
    407R  SER*     4.5     2.2    -      -       -      -
    408R  ILE*     3.6    18.0    +      -       -      +
    440R  TRP*     5.9     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 405 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127R  PHE*     4.0    11.9    -      -       +      -
    328R  HIS*     3.8     7.4    -      -       +      -
    332R  TRP*     3.5    31.9    -      -       +      +
    333R  PRO*     4.0    16.8    -      -       +      -
    335R  TRP*     5.2     1.3    -      -       +      -
    336R  LEU*     3.4    28.5    -      -       +      +
    401R  MET      3.0     7.9    +      -       -      +
    402R  GLY      3.6     1.3    -      -       -      +
    404R  LEU*     1.3    80.9    -      -       -      +
    406R  MET*     1.3    82.9    +      -       -      +
    408R  ILE*     3.9     1.7    -      -       -      +
    409R  THR*     3.0    38.7    +      -       -      +
    485R  TYR*     5.1     4.7    -      -       +      -
    486R  MET*     3.8    22.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 406 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325R  VAL*     3.2    31.6    -      -       +      -
    328R  HIS*     3.7    19.5    -      -       +      +
    402R  GLY      2.9    16.3    +      -       -      +
    403R  THR      4.3     0.2    -      -       -      +
    405R  LEU*     1.3    98.0    -      -       -      +
    407R  SER*     1.3    59.8    +      -       -      +
    409R  THR*     3.5     6.9    -      -       +      -
    410R  TYR*     2.8    55.7    +      -       +      +
    452R  SER      3.1    29.8    -      -       -      +
    453R  ASP*     4.1     1.6    -      -       -      -
    486R  MET*     3.6    13.2    -      -       +      -
    488R  ILE*     3.9    15.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 407 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    302R  PHE*     3.7    13.9    -      -       -      -
    403R  THR*     2.7    22.7    +      -       -      +
    404R  LEU      4.5     0.9    -      -       -      -
    406R  MET*     1.3    72.6    -      -       -      +
    408R  ILE*     1.3    63.2    +      -       -      +
    410R  TYR*     4.3     1.3    -      -       -      -
    411R  LEU*     3.0    21.3    +      -       -      +
    439R  TYR*     4.9     0.2    -      -       -      -
    440R  TRP*     2.9    31.5    +      -       -      -
    448R  GLN*     2.6    41.5    +      -       -      +
    450R  SER*     4.4     3.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 408 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123R  ASP      4.9     0.2    -      -       -      +
    126R  LEU*     3.8    35.7    -      -       +      +
    127R  PHE*     3.5    41.3    -      -       +      -
    130R  ALA*     3.7    24.5    -      -       +      -
    404R  LEU      3.6    13.6    +      -       -      +
    405R  LEU      3.5     1.2    +      -       -      -
    407R  SER*     1.3    75.2    -      -       -      +
    409R  THR*     1.3    66.5    +      -       -      +
    411R  LEU*     3.1     6.9    +      -       +      +
    412R  VAL*     2.8    31.4    +      -       +      +
    436R  LEU*     3.9    25.8    -      -       +      -
    440R  TRP*     4.4     4.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 409 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127R  PHE*     4.5     2.1    -      -       -      -
    405R  LEU*     3.0    39.1    +      -       -      +
    406R  MET*     3.5    25.3    -      -       +      -
    408R  ILE*     1.3    78.2    -      -       -      +
    410R  TYR*     1.3    59.5    +      -       +      +
    412R  VAL*     3.3     7.7    +      -       -      +
    413R  MET*     2.8    26.4    +      -       +      +
    483R  SER*     3.5    27.9    +      -       -      +
    485R  TYR*     3.8    20.2    -      -       +      +
    486R  MET*     4.7     2.0    -      -       -      +
    488R  ILE*     4.6     8.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 410 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    323R  THR*     3.4    24.7    +      -       -      -
    325R  VAL*     3.2    14.9    -      -       -      +
    406R  MET*     2.8    56.0    +      -       +      +
    407R  SER*     4.3     1.6    -      -       -      -
    409R  THR*     1.3    70.0    -      -       +      +
    411R  LEU*     1.3    67.6    +      -       -      +
    413R  MET*     3.1    29.4    +      -       +      +
    414R  GLN*     2.9    27.6    +      -       -      +
    448R  GLN*     3.6    13.2    -      -       -      +
    450R  SER*     4.8     2.2    -      -       -      -
    452R  SER      4.1     3.8    -      -       -      -
    453R  ASP      2.8    24.6    +      -       -      -
    455R  ALA*     3.5    24.9    -      -       +      -
    457R  LEU*     3.5    24.6    -      -       +      +
    488R  ILE*     4.3     7.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 411 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126R  LEU*     3.9    31.6    -      -       +      -
    407R  SER      3.0    15.1    +      -       -      +
    408R  ILE*     3.5    12.1    -      -       +      +
    410R  TYR*     1.3    74.7    -      -       -      +
    412R  VAL*     1.3    60.1    +      -       -      +
    414R  GLN*     2.9     7.4    +      -       -      +
    415R  LEU*     2.8    35.1    +      -       +      +
    435R  PHE*     4.0    20.9    -      -       +      -
    436R  LEU*     4.0    21.1    -      -       +      -
    439R  TYR*     3.7    39.9    -      -       +      -
    446R  ILE*     3.9    14.6    -      -       +      -
    448R  GLN*     4.1     0.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 412 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122R  ARG*     3.7    14.1    -      -       -      +
    123R  ASP*     3.5    37.7    -      -       +      +
    126R  LEU*     4.1    18.8    -      -       +      -
    408R  ILE*     2.8    25.8    +      -       +      +
    409R  THR*     3.5     9.9    -      -       -      +
    411R  LEU*     1.3    74.9    -      -       -      +
    413R  MET*     1.3    67.3    +      -       -      +
    415R  LEU*     3.1     7.4    +      -       -      +
    416R  ASP*     2.8    34.9    +      -       -      +
    483R  SER*     5.7     0.4    -      -       -      +
    484R  PRO*     5.3     4.0    -      -       +      -
    485R  TYR*     4.3    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 413 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    323R  THR*     5.2     1.1    -      -       -      -
    409R  THR*     2.8    14.3    +      -       +      +
    410R  TYR*     3.3    41.1    -      -       +      +
    412R  VAL*     1.3    76.5    -      -       -      +
    414R  GLN*     1.3    61.3    +      -       +      +
    416R  ASP*     4.6     1.6    -      -       -      -
    417R  HIS*     3.2    32.9    +      -       +      +
    457R  LEU*     4.0    11.4    -      -       +      -
    471R  LEU*     4.1    18.9    -      -       +      +
    475R  LEU*     5.1     4.3    -      -       -      -
    482R  PRO*     3.5    52.9    -      -       +      +
    483R  SER*     4.6     4.7    +      -       -      -
    488R  ILE*     3.8    24.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 414 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    410R  TYR      2.9    13.4    +      -       -      +
    411R  LEU*     3.2     8.0    -      -       -      +
    413R  MET*     1.3    76.1    -      -       -      +
    415R  LEU*     1.3    68.9    +      -       -      +
    418R  THR*     2.8    38.6    +      -       -      +
    419R  ALA*     3.2     2.0    +      -       -      -
    439R  TYR*     2.7    36.6    +      -       -      -
    446R  ILE*     3.8    17.5    -      -       +      +
    447R  ARG      3.4    10.8    +      -       -      -
    457R  LEU*     3.9    15.1    -      -       +      +
    458R  GLY      3.3    24.7    +      -       -      -
    459R  TRP*     3.5    31.0    -      -       +      -
    471R  LEU*     4.9     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 415 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122R  ARG*     3.5    43.3    -      -       -      +
    126R  LEU*     3.9    19.3    -      -       +      -
    411R  LEU*     2.8    37.3    +      -       +      +
    412R  VAL*     3.6     6.5    -      -       -      +
    414R  GLN*     1.3    76.2    -      -       -      +
    416R  ASP*     1.3    63.5    +      -       -      +
    418R  THR      3.5     0.2    +      -       -      -
    419R  ALA*     3.2    21.9    +      -       +      +
    420R  PRO*     3.6    12.5    -      -       -      +
    422R  LEU*     4.0    28.0    -      -       +      -
    423R  ASN*     4.1     5.2    +      -       -      +
    426R  ILE*     3.9    10.3    -      -       +      -
    435R  PHE*     4.5     5.8    -      -       +      -
    446R  ILE*     4.3    10.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 416 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122R  ARG*     2.6    34.2    +      -       -      +
    123R  ASP*     5.2     0.5    -      -       -      +
    412R  VAL*     2.8    32.2    +      -       -      +
    413R  MET*     4.0     1.3    -      -       -      +
    415R  LEU*     1.3    75.4    -      -       -      +
    417R  HIS*     1.3    78.4    +      -       +      +
    420R  PRO*     5.2     3.1    -      -       -      +
    482R  PRO      5.2     2.1    -      -       -      +
    484R  PRO*     4.8    12.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 417 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    413R  MET*     3.2    27.3    +      -       +      +
    416R  ASP*     1.3    89.5    +      -       +      +
    418R  THR*     1.3    70.7    +      -       +      +
    420R  PRO*     5.2     1.6    -      -       -      -
    467R  GLY*     3.7    12.3    -      -       -      +
    470R  ARG*     4.2    12.3    +      -       +      +
    471R  LEU*     4.0    21.5    -      -       +      +
    474R  MET*     3.1    37.1    -      -       +      +
    480R  VAL*     5.8     0.9    -      -       +      -
    482R  PRO*     3.0    30.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 418 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    414R  GLN      2.8    25.5    +      -       -      +
    415R  LEU      3.5     0.8    +      -       -      -
    416R  ASP      3.7     0.2    -      -       -      -
    417R  HIS*     1.3    87.9    -      -       +      +
    419R  ALA*     1.3    60.8    +      -       -      +
    420R  PRO*     3.5     8.2    -      -       -      +
    421R  HIS*     4.0     2.1    -      -       -      -
    446R  ILE*     4.0     1.7    -      -       -      +
    459R  TRP*     3.1    25.8    +      -       +      +
    463R  ARG      4.6     0.9    -      -       -      +
    464R  ALA*     3.1    37.6    -      -       -      +
    467R  GLY*     3.2     9.8    -      -       -      +
    468R  GLY*     3.2    27.1    -      -       -      +
    470R  ARG*     5.6     0.9    -      -       -      +
    471R  LEU*     4.3     5.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 419 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    414R  GLN      3.2     3.8    +      -       -      +
    415R  LEU*     3.2    18.8    +      -       +      +
    418R  THR*     1.3    87.9    +      -       -      +
    420R  PRO*     1.3    53.6    -      -       -      +
    421R  HIS*     3.0    17.5    -      -       +      -
    422R  LEU*     2.7    56.5    +      -       +      +
    423R  ASN      3.9     1.2    +      -       -      -
    446R  ILE*     4.6     5.4    -      -       +      -
    464R  ALA*     4.0     6.5    -      -       +      -
----------------------------------------------------------
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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