Contacts of the helix formed by residues 344 - 367 (chain B) in PDB entry 1DKF


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 GLN 344 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252B  LEU*     4.0     2.4    -      -       -      +
    253B  THR*     2.9    29.8    +      -       +      +
    256B  ASP*     3.2    14.4    +      -       -      +
    342B  LEU*     4.9     0.7    -      -       -      -
    343B  GLU*     1.3    81.1    -      -       +      +
    345B  PRO*     1.3    64.4    -      -       -      +
    346B  ASP*     3.1     3.4    -      -       +      +
    347B  ARG*     3.0    59.7    +      -       +      +
    348B  VAL*     3.3    14.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 345 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    361A  LYS*     5.2     2.5    -      -       -      +
    337B  GLY*     3.8    18.9    -      -       -      +
    342B  LEU*     3.5    24.4    -      -       +      +
    343B  GLU      3.1    14.8    -      -       -      +
    344B  GLN*     1.3    84.7    -      -       -      +
    346B  ASP*     1.3    68.9    +      -       -      +
    348B  VAL*     3.1    12.4    +      -       +      +
    349B  ASP*     2.9    28.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 346 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    364A  ASP*     5.5     3.6    -      -       -      +
    344B  GLN*     3.1     2.2    -      -       +      -
    345B  PRO*     1.3    83.6    -      -       +      +
    347B  ARG*     1.3    65.2    +      -       +      +
    349B  ASP*     3.2    13.4    +      -       -      +
    350B  MET*     2.9    32.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 347 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248B  GLY      5.0     0.8    +      -       -      -
    251B  THR*     3.0    40.6    +      -       -      -
    252B  LEU*     4.2    15.2    -      -       +      +
    253B  THR      4.9     0.4    -      -       -      +
    344B  GLN*     3.0    57.7    +      -       +      +
    346B  ASP*     1.3    78.4    -      -       +      +
    348B  VAL*     1.3    62.0    +      -       -      +
    350B  MET*     3.4     9.9    +      -       -      +
    351B  LEU*     3.1    27.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 348 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252B  LEU*     4.2    18.8    -      -       +      -
    256B  ASP*     4.8     1.6    -      -       -      +
    260B  LEU*     4.2    13.2    -      -       +      -
    335B  ILE*     3.7    20.5    -      -       +      +
    336B  CYS      3.3    10.8    -      -       -      +
    337B  GLY*     3.2    28.0    -      -       -      +
    342B  LEU*     4.1    20.2    -      -       +      -
    344B  GLN      3.5    14.8    -      -       -      +
    345B  PRO      3.1     7.8    +      -       -      +
    347B  ARG*     1.3    75.3    -      -       -      +
    349B  ASP*     1.3    65.8    +      -       -      +
    351B  LEU*     2.9    18.2    +      -       -      +
    352B  GLN*     3.1    11.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 349 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    361A  LYS*     3.6    22.1    +      -       -      +
    422A  LYS*     5.5    10.2    +      -       -      -
    426A  ARG*     5.8     2.4    +      -       -      -
    337B  GLY*     3.6    19.0    +      -       -      -
    338B  ASP*     5.2     0.5    -      -       -      +
    345B  PRO*     2.9    18.4    +      -       -      +
    346B  ASP*     3.2    15.8    +      -       -      +
    348B  VAL*     1.3    76.3    -      -       -      +
    350B  MET*     1.3    75.3    +      -       +      +
    352B  GLN*     3.5    14.9    +      -       -      +
    353B  GLU*     3.3    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 350 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    422A  LYS*     5.8     2.2    -      -       -      -
    346B  ASP*     2.9    21.0    +      -       +      +
    347B  ARG*     3.4    13.5    -      -       -      +
    348B  VAL      3.0     0.2    -      -       -      -
    349B  ASP*     1.3    91.9    -      -       +      +
    351B  LEU*     1.3    59.6    +      -       -      +
    353B  GLU*     3.1    32.2    -      -       -      +
    354B  PRO*     3.3    18.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 351 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    247B  PRO      3.1    23.1    -      -       -      +
    248B  GLY*     3.5    32.3    -      -       -      +
    249B  PHE*     3.8     5.2    -      -       -      +
    252B  LEU*     3.7    22.2    -      -       +      -
    335B  ILE*     3.7    24.7    -      -       +      -
    347B  ARG*     3.1    16.9    +      -       -      +
    348B  VAL*     2.9    10.4    +      -       -      +
    350B  MET*     1.3    77.9    -      -       -      +
    352B  GLN*     1.3    55.8    +      -       -      +
    353B  GLU      3.5     0.2    -      -       -      -
    354B  PRO*     3.3    16.6    -      -       +      +
    355B  LEU*     3.6    12.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 352 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    425A  LEU*     3.6    27.2    -      -       -      +
    332B  ILE*     2.8    43.4    +      -       -      +
    335B  ILE*     3.1    23.6    +      -       -      +
    336B  CYS*     3.8    12.4    -      -       -      +
    337B  GLY      4.8     1.8    +      -       -      -
    348B  VAL      3.1     9.7    +      -       -      +
    349B  ASP*     3.9    17.7    -      -       -      +
    350B  MET      3.3     0.2    -      -       -      -
    351B  LEU*     1.3    77.4    -      -       -      +
    353B  GLU*     1.3    65.2    +      -       -      +
    354B  PRO      3.3     0.7    -      -       -      -
    355B  LEU*     3.0    22.4    +      -       +      +
    356B  LEU*     3.1    21.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 353 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    418A  GLY*     6.2     4.5    -      -       -      -
    422A  LYS*     2.7    35.8    +      -       -      +
    349B  ASP      3.3     8.7    +      -       -      +
    350B  MET*     3.1    39.5    -      -       -      +
    352B  GLN*     1.3    79.3    -      -       -      +
    354B  PRO*     1.3    68.7    -      -       +      +
    356B  LEU*     3.4    11.5    +      -       -      +
    357B  GLU*     3.3    23.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 354 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184B  VAL*     5.2     1.0    -      -       -      +
    187B  LEU*     3.6    20.0    -      -       +      +
    350B  MET      3.3     9.4    -      -       -      +
    351B  LEU*     3.3    20.6    -      -       +      +
    353B  GLU*     1.3    94.3    -      -       +      +
    355B  LEU*     1.3    53.0    +      -       -      +
    357B  GLU*     3.1     7.9    +      -       +      +
    358B  ALA*     2.8    35.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 355 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187B  LEU*     4.3    16.4    -      -       +      -
    191B  VAL*     4.4    12.3    -      -       +      -
    246B  LEU*     5.7     1.6    -      -       +      -
    247B  PRO*     5.8     1.8    -      -       +      -
    328B  LEU*     4.0    18.5    -      -       +      +
    331B  ALA*     4.0    33.0    -      -       +      +
    332B  ILE*     3.7    19.0    -      -       +      +
    335B  ILE*     4.1    24.0    -      -       +      -
    351B  LEU*     3.6    21.1    -      -       +      +
    352B  GLN*     3.0    16.0    +      -       -      +
    354B  PRO*     1.3    75.2    -      -       +      +
    356B  LEU*     1.3    57.0    +      -       -      +
    358B  ALA*     3.2     3.9    +      -       -      +
    359B  LEU*     2.8    31.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 356 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    418A  GLY*     5.5     2.2    -      -       -      +
    421A  ALA*     4.0    26.7    -      -       +      -
    422A  LYS*     4.6    11.9    -      -       -      +
    425A  LEU*     3.5    29.4    -      -       +      -
    332B  ILE*     3.7    37.7    -      -       +      -
    352B  GLN*     3.1    24.3    +      -       +      +
    353B  GLU*     3.7    10.1    -      -       -      +
    355B  LEU*     1.3    75.8    -      -       -      +
    357B  GLU*     1.3    58.7    +      -       -      +
    359B  LEU*     4.5     1.3    -      -       -      -
    360B  LYS*     3.0    28.1    +      -       -      +
    374B  PHE*     3.6     8.1    -      -       +      -
    378B  LEU*     4.1    14.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 357 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    417A  PRO*     4.0    15.7    -      -       +      +
    418A  GLY*     3.6    25.1    +      -       -      -
    184B  VAL*     4.8     3.8    -      -       +      -
    353B  GLU*     3.3    11.5    +      -       -      +
    354B  PRO*     3.1    11.7    +      -       +      +
    356B  LEU*     1.3    76.9    -      -       -      +
    358B  ALA*     1.3    67.7    +      -       -      +
    360B  LYS*     2.7    39.0    +      -       -      +
    361B  VAL*     3.0    35.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 358 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184B  VAL*     3.5    28.2    -      -       +      +
    187B  LEU*     4.2    12.6    -      -       +      -
    188B  ILE*     3.7    16.4    -      -       +      +
    328B  LEU*     4.2     9.4    -      -       +      -
    354B  PRO      2.8    17.0    +      -       -      +
    355B  LEU      3.5     4.3    -      -       -      +
    357B  GLU*     1.3    76.3    -      -       -      +
    359B  LEU*     1.3    62.3    +      -       -      +
    361B  VAL*     3.2     2.5    -      -       -      +
    362B  TYR*     3.0    29.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 359 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325B  GLU*     4.3    11.4    -      -       +      +
    328B  LEU*     3.8    30.7    -      -       +      +
    329B  LEU*     4.7     9.4    -      -       +      -
    332B  ILE*     3.7    23.6    -      -       +      -
    355B  LEU      2.8    16.7    +      -       -      +
    356B  LEU      3.9     3.6    -      -       -      +
    358B  ALA*     1.3    75.6    -      -       -      +
    360B  LYS*     1.3    65.0    +      -       -      +
    362B  TYR*     4.6     1.1    -      -       +      -
    363B  VAL*     2.9    51.8    +      -       +      +
    374B  PHE*     3.9    16.8    -      -       +      -
    377B  MET*     4.2    20.2    -      -       +      -
    378B  LEU*     4.2    13.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 360 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    406A  GLU*     4.0    10.7    +      -       -      +
    410A  LYS*     4.4    10.3    -      -       -      +
    417A  PRO*     3.0    26.3    +      -       -      +
    418A  GLY*     4.8     1.0    -      -       -      -
    420A  PHE*     5.8     1.7    -      -       +      +
    421A  ALA*     6.4     0.2    -      -       +      -
    356B  LEU      3.0    19.8    +      -       -      +
    357B  GLU*     2.7    34.9    +      -       -      +
    359B  LEU*     1.3    77.5    -      -       -      +
    361B  VAL*     1.3    68.5    +      -       +      +
    363B  VAL*     4.1     0.9    -      -       -      +
    364B  ARG*     3.2    56.9    +      -       -      +
    374B  PHE*     3.4    31.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 361 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184B  VAL*     4.3    17.0    -      -       +      -
    188B  ILE*     4.5     5.2    -      -       +      -
    357B  GLU*     3.0    21.6    +      -       +      +
    358B  ALA*     3.2    17.0    -      -       -      +
    360B  LYS*     1.3    83.4    -      -       +      +
    362B  TYR*     1.3    68.9    +      -       -      +
    364B  ARG*     3.3     4.4    +      -       -      +
    365B  LYS*     2.7    37.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 362 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    188B  ILE*     3.8    30.1    -      -       +      -
    192B  ARG*     2.9    29.7    +      -       -      -
    322B  ASP*     2.7    33.6    +      -       -      -
    324B  ALA*     3.7     9.6    -      -       +      -
    325B  GLU*     3.7    19.3    -      -       +      -
    328B  LEU*     5.0     4.5    -      -       +      -
    358B  ALA      3.0    16.5    +      -       -      +
    359B  LEU*     4.0     3.1    -      -       -      +
    361B  VAL*     1.3    83.2    -      -       -      +
    363B  VAL*     1.3    63.8    +      -       +      +
    365B  LYS*     3.2    13.7    +      -       +      +
    366B  ARG*     3.0    51.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 363 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325B  GLU*     3.7    20.4    -      -       -      +
    359B  LEU*     2.9    43.8    +      -       +      +
    360B  LYS      4.1     1.8    -      -       -      +
    362B  TYR*     1.3    77.7    -      -       -      +
    364B  ARG*     1.3    61.0    +      -       +      +
    366B  ARG      3.3     0.5    +      -       -      -
    367B  ARG*     3.0    39.0    +      -       +      +
    370B  ARG      5.5     0.2    -      -       -      +
    373B  MET*     4.0    13.9    -      -       +      +
    374B  PHE*     3.8    33.4    -      -       +      +
    377B  MET*     3.8    17.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 364 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    406A  GLU*     2.8    41.3    +      -       -      -
    410A  LYS*     4.8     4.2    -      -       -      +
    420A  PHE*     4.6     1.2    -      -       -      -
    360B  LYS*     3.2    40.8    +      -       -      +
    361B  VAL*     3.9     4.3    -      -       -      +
    363B  VAL*     1.3    79.4    -      -       +      +
    365B  LYS*     1.3    66.8    +      -       -      +
    367B  ARG      3.4     5.2    -      -       -      +
    368B  PRO*     3.3    22.5    -      -       -      +
    370B  ARG      4.9     1.6    -      -       -      +
    371B  PRO*     2.9    53.8    +      -       +      +
    374B  PHE*     3.7    16.1    -      -       +      +
    375B  PRO*     4.0    13.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 365 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    361B  VAL      2.7    21.7    +      -       -      +
    362B  TYR*     3.2    15.2    +      -       +      +
    364B  ARG*     1.3    72.9    -      -       -      +
    366B  ARG*     1.3    65.8    +      -       +      +
    368B  PRO*     3.3    14.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 366 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320B  GLU*     3.7    11.7    +      -       -      +
    322B  ASP*     3.4    27.0    +      -       -      +
    325B  GLU*     2.5    44.5    +      -       -      -
    362B  TYR*     3.0    46.4    +      -       +      +
    363B  VAL      3.6     7.9    -      -       -      +
    365B  LYS*     1.3    81.3    -      -       +      +
    367B  ARG*     1.3    79.9    +      -       +      +
    368B  PRO*     3.1     7.7    -      -       -      +
    370B  ARG*     5.1     0.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 367 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319B  LEU      2.6    30.1    +      -       -      -
    320B  GLU*     3.2     9.1    +      -       -      +
    321B  MET*     3.9     0.2    -      -       -      +
    325B  GLU*     2.7    44.6    +      -       -      -
    363B  VAL*     3.0    24.3    +      -       -      +
    364B  ARG*     3.4     9.8    -      -       -      +
    366B  ARG*     1.3    97.5    -      -       +      +
    368B  PRO*     1.3    63.3    -      -       -      +
    369B  SER      3.3     2.9    -      -       -      -
    370B  ARG*     3.1    66.8    +      -       -      +
    371B  PRO*     5.0     0.3    -      -       -      +
    373B  MET*     3.7    25.7    -      -       -      +
    377B  MET*     4.2     6.7    -      -       -      +
----------------------------------------------------------
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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