Contacts of the helix formed by residues 327 - 350 (chain G) in PDB entry 2QJK


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 ASP 327 (chain G).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    315G  VAL*     5.3     2.9    -      -       -      -
    319G  ASN*     3.8    19.7    -      -       -      +
    324G  GLY      3.4     9.2    +      -       -      +
    325G  ILE      3.5     3.1    +      -       -      -
    326G  ILE*     1.3    76.6    -      -       -      +
    328G  ALA*     1.3    66.9    +      -       -      +
    329G  LYS*     3.1    16.4    +      -       -      +
    330G  PHE*     3.2    13.8    +      -       -      +
    331G  PHE*     3.0    20.4    +      -       -      +
    168L  PRO*     3.6    28.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 328 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308G  PHE      4.1    10.6    -      -       -      +
    309G  THR      3.8     6.5    -      -       -      +
    310G  ALA*     3.6    39.0    -      -       +      +
    315G  VAL*     4.5    11.4    -      -       +      +
    319G  ASN*     5.7     0.2    -      -       -      +
    327G  ASP*     1.3    75.4    -      -       -      +
    329G  LYS*     1.3    65.5    +      -       -      +
    331G  PHE*     2.9     8.9    +      -       -      +
    332G  GLY*     2.8    22.3    +      -       -      -
    166L  PRO*     4.1    13.7    -      -       +      +
    168L  PRO*     6.3     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 329 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    164G  GLY      5.1     0.7    -      -       -      -
    167G  GLY      4.7     6.3    +      -       -      -
    168G  ALA*     4.1    31.4    -      -       +      +
    305G  LEU*     5.3     0.5    -      -       -      +
    327G  ASP*     3.1    11.5    +      -       -      +
    328G  ALA*     1.3    80.7    -      -       -      +
    330G  PHE*     1.3    62.1    +      -       -      +
    332G  GLY*     3.1     9.4    +      -       -      -
    333G  VAL*     3.1    16.0    +      -       +      +
    130L  THR      2.9    24.1    +      -       -      +
    131L  HIS*     2.8    47.7    +      -       +      +
    132L  LEU*     4.7     4.5    -      -       +      -
    166L  PRO*     3.7    16.6    +      -       -      +
    168L  PRO*     4.0    12.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 330 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168G  ALA*     3.5    30.1    -      -       +      +
    169G  ILE*     4.0    15.0    -      -       +      -
    170G  PRO*     3.5    35.0    -      -       +      -
    325G  ILE*     4.2    11.7    -      -       +      +
    326G  ILE*     4.3    14.8    -      -       +      -
    327G  ASP*     3.2    15.8    +      -       -      +
    329G  LYS*     1.3    77.1    -      -       +      +
    331G  PHE*     1.3    60.5    +      -       -      +
    333G  VAL*     3.4    12.7    +      -       +      -
    334G  LEU*     2.9    68.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 331 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308G  PHE*     3.3    52.3    -      +       +      -
    314G  VAL*     3.4    31.0    -      -       +      -
    315G  VAL*     3.7    11.0    -      -       +      -
    318G  ALA*     4.2    16.4    -      -       +      -
    326G  ILE*     4.1    17.7    -      -       +      +
    327G  ASP      3.0    20.5    +      -       -      +
    328G  ALA*     2.9     8.4    +      -       -      +
    330G  PHE*     1.3    76.3    -      -       -      +
    332G  GLY*     1.3    51.8    +      -       -      +
    334G  LEU*     2.9    13.5    +      -       +      +
    335G  ALA*     2.6    40.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 332 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    305G  LEU*     3.5    36.8    -      -       -      +
    308G  PHE*     4.5     5.6    -      -       -      -
    328G  ALA      2.8    12.5    +      -       -      -
    329G  LYS      3.1     4.5    +      -       -      -
    331G  PHE*     1.3    80.1    -      -       -      +
    333G  VAL*     1.3    61.5    +      -       -      +
    335G  ALA*     3.3     9.4    +      -       -      +
    336G  MET*     3.0    18.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 333 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165G  LEU*     4.0    31.6    -      -       +      +
    168G  ALA*     3.5    23.8    -      -       +      -
    169G  ILE*     6.2     2.2    -      -       +      -
    305G  LEU*     3.8     9.8    -      -       +      +
    329G  LYS*     3.1    15.7    +      -       +      +
    330G  PHE*     3.5    18.8    -      -       +      +
    332G  GLY*     1.3    76.4    -      -       -      +
    334G  LEU*     1.3    64.8    +      -       +      +
    336G  MET*     3.0    13.8    +      -       -      +
    337G  PHE*     3.1    40.7    +      -       +      -
    131L  HIS*     6.0     0.4    -      -       -      +
    132L  LEU*     5.2     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 334 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    326G  ILE*     4.4    14.6    -      -       +      -
    330G  PHE*     2.9    68.7    +      -       +      +
    331G  PHE*     3.3    12.6    -      -       +      +
    333G  VAL*     1.3    76.4    -      -       +      +
    335G  ALA*     1.3    54.3    +      -       -      +
    337G  PHE*     4.4     4.0    -      -       +      +
    338G  GLY*     2.7    35.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 335 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    304G  ILE*     3.9     6.6    -      -       +      +
    308G  PHE*     3.4    37.5    -      -       +      -
    331G  PHE*     2.6    25.7    +      -       +      +
    332G  GLY      3.3     5.8    -      -       -      +
    333G  VAL      3.2     0.2    -      -       -      -
    334G  LEU*     1.3    72.5    -      -       -      +
    336G  MET*     1.3    57.8    +      -       -      +
    338G  GLY*     5.0     0.2    -      -       -      -
    339G  ALA*     2.8    25.1    +      -       -      +
    401G  PHE*     3.3    18.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 336 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165G  LEU*     3.7    23.8    -      -       +      -
    301G  PHE*     3.3    38.8    -      -       +      +
    304G  ILE*     4.1     8.0    -      -       -      +
    305G  LEU*     4.0    13.2    -      -       +      -
    332G  GLY      3.0    11.4    +      -       -      +
    333G  VAL      3.0     7.8    +      -       -      +
    335G  ALA*     1.3    72.4    -      -       -      +
    337G  PHE*     1.3    84.1    +      -       +      +
    338G  GLY      2.9     0.9    -      -       -      -
    339G  ALA*     2.8    20.8    +      -       -      +
    340G  ILE*     3.3     8.5    +      -       -      +
    503G  SMA      3.3    61.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 337 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137G  LEU*     5.8     4.7    -      -       +      -
    165G  LEU*     4.5    14.8    -      -       +      -
    166G  PHE*     4.6    20.9    -      +       -      -
    333G  VAL*     3.1    41.5    +      -       +      +
    334G  LEU*     4.4     3.4    -      -       -      +
    336G  MET*     1.3    95.6    -      -       +      +
    338G  GLY*     1.3    56.5    +      -       -      +
    340G  ILE*     3.1    12.1    +      -       +      +
    341G  LEU*     2.8    29.6    +      -       -      +
    503G  SMA      3.5    41.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 338 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    334G  LEU      2.7    23.5    +      -       -      -
    335G  ALA      3.8     0.4    -      -       -      -
    337G  PHE*     1.3    69.9    -      -       -      +
    339G  ALA*     1.3    64.1    +      -       -      +
    340G  ILE      2.9     2.4    +      -       -      -
    341G  LEU*     2.9    11.6    +      -       -      -
    342G  VAL*     2.8    30.6    +      -       -      +
    401G  PHE*     3.9     9.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 339 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    301G  PHE*     4.5     9.9    -      -       +      -
    304G  ILE*     3.8    20.2    -      -       +      -
    335G  ALA      2.8    13.6    +      -       -      +
    336G  MET*     2.8    12.2    +      -       -      +
    338G  GLY*     1.3    75.3    -      -       -      +
    340G  ILE*     1.3    58.6    +      -       -      +
    342G  VAL*     3.2    11.2    -      -       -      +
    343G  MET*     3.9     1.6    +      -       -      +
    400G  TRP*     2.9    35.9    +      -       -      +
    401G  PHE*     3.6    20.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 340 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133G  MET*     3.8    21.9    -      -       +      +
    136G  TYR*     4.5     9.2    -      -       +      -
    137G  LEU*     4.9    13.2    -      -       +      -
    140G  MET*     3.9    15.9    -      -       +      -
    301G  PHE*     3.2    35.7    -      -       +      -
    336G  MET      3.8     7.2    -      -       -      +
    337G  PHE*     3.1    12.7    +      -       +      +
    338G  GLY      2.9     0.4    -      -       -      -
    339G  ALA*     1.3    76.5    -      -       -      +
    341G  LEU*     1.3    66.4    +      -       -      +
    343G  MET*     2.9    28.8    +      -       +      +
    344G  ALA      3.2     4.3    +      -       -      -
    503G  SMA      3.9    28.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 341 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    337G  PHE      2.8    20.4    +      -       -      +
    338G  GLY*     2.9    10.7    +      -       -      +
    340G  ILE*     1.3    74.6    -      -       -      +
    342G  VAL*     1.3    66.3    +      -       +      +
    344G  ALA*     3.0    19.1    +      -       +      +
    345G  LEU*     3.2    36.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 342 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    338G  GLY*     2.8    22.8    +      -       -      +
    339G  ALA*     3.2    21.1    -      -       -      +
    341G  LEU*     1.3    73.9    -      -       +      +
    343G  MET*     1.3    67.8    +      -       -      +
    345G  LEU*     2.8    32.2    +      -       +      +
    346G  VAL*     3.0    10.2    +      -       -      -
    349G  LEU*     4.7     4.2    -      -       +      +
    400G  TRP*     4.0    10.5    -      -       +      +
    401G  PHE*     4.1    20.2    -      -       +      -
    404G  PHE*     3.9    32.3    -      -       +      -
    405G  LEU*     4.3    22.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 343 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109G  TYR*     6.5     0.2    -      -       +      -
    112G  ILE*     4.3    26.5    -      -       +      -
    116G  LEU*     4.8     4.3    -      -       +      -
    129G  TRP*     3.2    17.9    +      -       +      -
    133G  MET*     3.9    22.7    -      -       +      -
    136G  TYR*     4.4    19.7    -      -       +      -
    301G  PHE*     4.7    10.3    -      -       +      -
    339G  ALA      4.1     6.5    -      -       -      +
    340G  ILE*     2.9    23.2    +      -       +      +
    342G  VAL*     1.3    80.9    -      -       -      +
    344G  ALA*     1.3    54.9    +      -       -      +
    346G  VAL*     2.9    27.6    -      -       -      +
    400G  TRP*     4.2    20.6    -      -       +      -
    404G  PHE*     3.9    26.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 344 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129G  TRP*     3.6    15.9    +      -       -      +
    130G  ILE*     5.2     3.5    -      -       +      +
    133G  MET*     3.9    27.6    -      -       +      +
    340G  ILE      3.2     1.8    +      -       -      +
    341G  LEU*     3.0    21.2    +      -       +      +
    343G  MET*     1.3    80.8    -      -       -      +
    345G  LEU*     1.3    61.9    +      -       +      +
    346G  VAL      3.2     0.4    -      -       -      -
    347G  PRO*     3.0    16.6    -      -       -      +
    348G  TRP*     3.6     7.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 345 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    341G  LEU*     3.3    41.5    -      -       +      +
    342G  VAL*     2.8    14.1    +      -       +      +
    344G  ALA*     1.3    76.1    -      -       +      +
    346G  VAL*     1.3    51.0    +      -       -      +
    347G  PRO*     3.0     6.9    -      -       -      +
    348G  TRP*     2.6    48.8    +      -       +      +
    349G  LEU*     3.2    23.2    +      -       +      -
    405G  LEU*     6.6     0.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 346 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116G  LEU*     4.1     6.3    -      -       +      -
    121G  TYR*     3.7    30.4    -      -       +      -
    129G  TRP*     3.4    21.3    -      -       +      +
    342G  VAL      3.0     5.8    +      -       -      -
    343G  MET      2.9    22.7    -      -       -      +
    345G  LEU*     1.3    75.9    -      -       -      +
    347G  PRO*     1.3    72.8    -      -       +      +
    348G  TRP      3.0     0.7    +      -       -      -
    349G  LEU*     3.7     8.5    -      -       -      +
    350G  ASP*     3.1    20.8    +      -       -      +
    404G  PHE*     4.0    20.2    -      -       +      -
    408G  LEU*     4.0    20.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 347 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121G  TYR*     3.7    33.8    -      -       +      +
    122G  LYS*     5.3     4.6    -      -       -      +
    123G  ALA      5.9     0.3    +      -       -      -
    126G  GLU*     4.1    15.4    -      -       +      +
    129G  TRP*     3.7    21.5    -      -       +      -
    344G  ALA      3.0    12.6    -      -       -      +
    345G  LEU      3.0     7.2    -      -       -      +
    346G  VAL*     1.3    97.6    -      -       +      +
    348G  TRP*     1.3    80.4    +      -       +      +
    350G  ASP*     3.8    11.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 348 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126G  GLU*     4.4    23.0    +      -       +      +
    130G  ILE*     3.9    29.8    -      -       +      -
    344G  ALA      3.6    18.4    -      -       -      -
    345G  LEU*     2.6    45.0    +      -       +      +
    347G  PRO*     1.3    90.7    -      -       +      +
    349G  LEU*     1.3    68.8    -      -       +      +
    350G  ASP      3.3     4.0    -      -       -      +
    351G  THR*     4.7     8.0    -      -       -      +
     18J  TRP*     4.6    12.9    -      +       -      -
----------------------------------------------------------
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Residues in contact with LEU 349 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    342G  VAL*     4.7     9.2    -      -       +      +
    345G  LEU*     3.2    25.9    +      -       +      +
    346G  VAL*     3.3     6.5    +      -       -      +
    348G  TRP*     1.3    87.0    -      -       +      +
    350G  ASP*     1.3    61.6    +      -       -      +
    351G  THR*     3.2     9.2    +      -       -      +
    404G  PHE*     2.9    43.3    -      -       +      +
    405G  LEU*     3.5    25.1    -      -       +      -
    408G  LEU*     4.4     4.0    -      -       +      -
    409G  PRO*     3.3    33.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 350 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121G  TYR*     2.9    29.9    +      -       +      +
    122G  LYS*     3.3    13.0    -      -       +      +
    346G  VAL      3.1    17.1    +      -       -      +
    347G  PRO      3.8    12.4    -      -       -      +
    348G  TRP      4.5     1.5    -      -       -      -
    349G  LEU*     1.3    76.0    -      -       -      +
    351G  THR*     1.3    59.5    +      -       -      +
    352G  SER*     3.0    31.0    +      -       -      +
    360G  ARG*     3.1    23.0    +      -       -      -
    363G  PHE*     4.1     0.2    -      -       -      -
    408G  LEU*     4.1    23.5    -      -       +      +
----------------------------------------------------------
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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