Contacts of the helix formed by residues 536 - 559 (chain G) in PDB entry 7CR3


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 LEU 536 (chain G).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    360G  TRP*     6.1     0.4    -      -       +      -
    364G  GLU*     5.5    13.9    -      -       +      +
    535G  GLY*     1.3    70.8    -      -       -      +
    537G  LYS*     1.3    80.2    +      -       +      +
    539G  SER*     3.5     8.1    -      -       -      -
    540G  ILE*     3.0    40.0    +      -       +      +
     19H  LEU*     5.3     1.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 537 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    360G  TRP*     3.2    48.9    -      -       +      -
    535G  GLY      4.9     5.8    -      -       -      +
    536G  LEU*     1.3    89.9    -      -       +      +
    538G  VAL*     1.3    58.5    +      -       -      +
    540G  ILE*     3.8     2.1    -      -       -      +
    541G  ARG*     2.9    61.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 538 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    535G  GLY*     3.2    12.5    -      -       -      +
    537G  LYS*     1.3    76.3    -      -       -      +
    539G  SER*     1.3    63.5    +      -       -      +
    541G  ARG*     3.6    13.9    -      -       -      +
    542G  ALA*     2.8    29.5    +      -       -      +
     12H  GLU*     3.1    41.1    -      -       -      +
     13H  PHE*     3.6    28.0    -      -       +      -
     15H  GLU*     5.4     0.4    -      -       -      +
     16H  ALA*     3.6    27.7    -      -       +      +
     69H  PHE*     4.9     2.2    -      -       +      -
     73H  MET*     4.2    10.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 539 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    535G  GLY      2.4    29.6    +      -       -      -
    536G  LEU*     3.5     9.7    -      -       -      -
    537G  LYS      3.2     0.2    -      -       -      -
    538G  VAL*     1.3    79.6    -      -       -      +
    540G  ILE*     1.3    65.4    +      -       -      +
    542G  ALA*     3.9     1.7    -      -       -      +
    543G  VAL*     3.1    24.8    +      -       -      +
     16H  ALA*     5.6     2.0    -      -       -      -
     19H  LEU*     3.4    23.0    -      -       -      +
     20H  PHE*     4.3    16.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 540 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    349G  THR*     4.4     8.5    -      -       +      -
    360G  TRP*     5.5    10.3    -      -       +      +
    363G  TYR*     3.6    56.1    -      -       +      +
    364G  GLU*     5.0     1.6    -      -       -      +
    536G  LEU*     3.0    27.4    +      -       +      +
    537G  LYS*     4.0     2.9    -      -       -      +
    539G  SER*     1.3    77.0    -      -       -      +
    541G  ARG*     1.3    57.6    +      -       -      +
    543G  VAL*     3.2    11.9    -      -       +      +
    544G  CYS*     2.9    33.3    +      -       +      +
    547G  ARG*     5.3     2.0    -      -       -      +
     40H  LEU*     3.8    24.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 541 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    349G  THR*     2.3    52.0    +      -       -      +
    350G  ASN*     4.3     1.5    -      -       -      +
    351G  LEU*     3.4    39.1    -      -       -      +
    360G  TRP*     3.3    20.7    -      -       +      -
    537G  LYS*     2.9    55.0    +      -       -      +
    538G  VAL*     3.5    16.3    -      -       -      +
    539G  SER      3.1     0.2    -      -       -      -
    540G  ILE*     1.3    77.4    -      -       -      +
    542G  ALA*     1.3    57.4    +      -       -      +
    544G  CYS*     3.1     3.2    +      -       -      +
    545G  VAL*     2.8    36.8    +      -       +      +
      9H  GLN*     5.7     4.0    -      -       -      +
     12H  GLU*     6.3     0.4    -      -       -      -
     73H  MET*     4.3    13.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 542 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    538G  VAL      2.8    20.6    +      -       -      +
    539G  SER      3.9     0.2    -      -       -      +
    541G  ARG*     1.3    72.2    -      -       -      +
    543G  VAL*     1.3    63.0    +      -       -      +
    545G  VAL*     3.1     4.0    +      -       -      +
    546G  MET*     3.0    32.0    +      -       +      +
     20H  PHE*     3.7    17.7    -      -       +      -
     69H  PHE*     3.5    33.7    -      -       +      -
     72H  MET*     3.7     0.4    -      -       -      +
     73H  MET*     3.7    15.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 543 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    539G  SER      3.1    13.4    +      -       -      +
    540G  ILE*     3.2    21.5    -      -       +      +
    542G  ALA*     1.3    77.6    -      -       -      +
    544G  CYS*     1.3    60.5    +      -       -      +
    546G  MET*     3.5    13.1    +      -       +      +
    547G  ARG*     2.9    49.8    +      -       -      +
     20H  PHE*     4.2     8.0    -      -       +      -
     33H  LEU*     5.6     1.1    -      -       +      +
     36H  VAL*     5.3     9.2    -      -       +      -
     37H  MET*     4.1    32.8    -      -       +      -
     40H  LEU*     5.4     3.6    -      -       +      -
     52H  MET*     4.4    11.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 544 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    342G  SER*     3.7     2.4    +      -       -      -
    345G  ARG*     3.3    48.7    -      -       -      -
    346G  PHE*     3.4    14.4    -      -       -      -
    349G  THR*     3.6     9.6    -      -       +      +
    540G  ILE*     2.9    20.6    +      -       +      +
    541G  ARG      3.5     4.3    -      -       -      +
    543G  VAL*     1.3    75.6    -      -       -      +
    545G  VAL*     1.3    61.1    +      -       -      +
    547G  ARG*     3.1    23.6    +      -       -      +
    548G  PHE*     2.8    26.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 545 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    346G  PHE*     3.7    33.9    -      -       +      -
    349G  THR*     5.8     0.2    -      -       -      +
    541G  ARG*     2.8    23.3    +      -       +      +
    542G  ALA      3.6     6.3    -      -       -      +
    544G  CYS*     1.3    74.6    -      -       +      +
    546G  MET*     1.3    57.5    +      -       -      +
    548G  PHE*     3.2    10.2    +      -       +      +
    549G  LEU*     2.9    34.8    +      -       +      +
     72H  MET*     3.6    41.1    -      -       +      +
     73H  MET*     4.2    13.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 546 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    542G  ALA*     3.0    39.5    +      -       +      +
    543G  VAL*     3.6     6.3    -      -       -      +
    545G  VAL*     1.3    75.9    -      -       -      +
    547G  ARG*     1.3    56.6    +      -       -      +
    549G  LEU*     3.2     6.3    +      -       -      +
    550G  VAL*     3.0    30.7    +      -       -      +
     20H  PHE*     3.8    26.0    -      -       +      -
     33H  LEU*     4.5     5.8    -      -       -      -
     52H  MET*     3.4    39.1    -      -       +      +
     55H  GLU*     4.4     1.0    -      -       +      +
     56H  VAL*     3.5    30.5    -      -       +      -
     64H  ILE*     4.2    17.3    -      -       +      -
     69H  PHE*     4.9     4.5    -      -       +      -
     72H  MET*     3.6    17.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 547 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    342G  SER*     3.5     8.1    +      -       -      +
    345G  ARG*     3.0    40.3    -      -       -      +
    363G  TYR*     3.7    18.3    +      -       -      -
    540G  ILE*     4.9     2.4    +      -       -      +
    543G  VAL*     2.9    51.7    +      -       +      +
    544G  CYS*     3.1    32.4    +      -       -      +
    546G  MET*     1.3    75.7    -      -       -      +
    548G  PHE*     1.3    59.0    +      -       -      +
    550G  VAL*     3.1    11.5    -      -       +      +
    551G  SER*     3.0    28.1    +      -       -      -
     37H  MET*     4.2    22.2    -      -       -      +
     40H  LEU*     5.2     3.4    -      -       -      +
     52H  MET*     3.9    15.3    -      -       +      -
    115H  GLU*     5.2     5.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 548 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    339G  LEU*     3.4    30.1    -      -       +      -
    342G  SER*     3.1    22.1    +      -       -      +
    343G  ALA*     3.5    30.1    -      -       +      -
    346G  PHE*     4.3    26.0    -      +       +      -
    544G  CYS      2.8    17.2    +      -       -      +
    545G  VAL*     3.7     9.6    -      -       +      +
    547G  ARG*     1.3    69.9    -      -       -      +
    549G  LEU*     1.3    63.4    +      -       +      +
    551G  SER*     3.3     2.8    +      -       -      -
    552G  LYS*     2.8    61.2    +      -       +      +
     77H  MET*     4.9    10.5    -      -       +      -
     80H  THR*     5.7     5.8    -      -       +      -
     82H  SER*     5.7     8.3    -      -       -      -
     86H  ILE*     5.9     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 549 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    545G  VAL*     2.9    23.5    +      -       +      +
    546G  MET*     3.2     2.0    +      -       -      +
    548G  PHE*     1.3    76.9    -      -       +      +
    550G  VAL*     1.3    60.4    +      -       -      +
    552G  LYS*     3.2    32.0    +      -       +      +
    553G  ARG*     3.0    24.9    +      -       -      +
     55H  GLU*     3.0    51.4    -      -       +      +
     72H  MET*     3.6    34.5    -      -       +      -
     80H  THR*     6.3     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 550 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    546G  MET      3.0    10.6    +      -       -      +
    547G  ARG*     3.1    27.6    -      -       +      +
    549G  LEU*     1.3    75.7    -      -       -      +
    551G  SER*     1.3    56.5    +      -       -      +
    553G  ARG*     4.1     0.6    -      -       -      +
    554G  LYS*     2.8    39.9    +      -       +      +
     48H  GLU      4.5     0.9    -      -       -      +
     51H  ASP*     3.5    16.4    -      -       +      -
     52H  MET*     3.5    43.7    -      -       +      +
     55H  GLU*     3.5    19.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 551 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    335G  PRO*     4.6     2.3    +      -       -      +
    338G  GLY*     3.2    26.0    +      -       -      -
    339G  LEU*     3.2    18.1    +      -       -      +
    342G  SER*     4.3     4.3    -      -       -      -
    547G  ARG      3.0    20.1    +      -       -      -
    548G  PHE*     3.5    10.3    -      -       -      -
    549G  LEU      3.2     0.2    -      -       -      -
    550G  VAL*     1.3    78.3    -      -       -      +
    552G  LYS*     1.3    57.5    +      -       -      +
    554G  LYS*     3.8     5.3    -      -       -      +
    555G  PHE*     2.9    29.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 552 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    339G  LEU*     3.5    22.9    -      -       +      -
    548G  PHE*     2.8    55.3    +      -       +      +
    549G  LEU*     3.2    28.3    +      -       +      +
    551G  SER*     1.3    71.9    -      -       -      +
    553G  ARG*     1.3    59.7    +      -       +      +
    555G  PHE*     3.4     1.2    +      -       -      +
    556G  LYS*     2.9    20.0    +      -       -      +
     80H  THR*     4.2    27.5    +      -       -      +
     82H  SER*     4.9     8.5    -      -       -      -
     85H  GLU*     2.9    37.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 553 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    549G  LEU      3.0     7.3    +      -       -      +
    550G  VAL*     4.1     1.6    -      -       -      +
    552G  LYS*     1.3    77.1    -      -       +      +
    554G  LYS*     1.3    60.1    +      -       +      +
    556G  LYS*     3.1    10.2    +      -       +      +
    557G  GLU*     2.9    43.6    +      -       -      +
     54H  ASN*     2.6    46.4    +      -       -      +
     55H  GLU*     2.7    47.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 554 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    335G  PRO*     4.2    14.8    -      -       +      +
    550G  VAL*     2.8    26.4    +      -       +      +
    551G  SER*     3.9     5.4    -      -       -      +
    553G  ARG*     1.3    75.8    -      -       +      +
    555G  PHE*     1.3    61.9    +      -       -      +
    557G  GLU*     3.2    29.9    +      -       -      +
    558G  SER*     3.0    26.4    +      -       -      -
     51H  ASP*     6.0     7.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 555 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    332G  ARG*     4.4    10.3    -      -       +      -
    335G  PRO*     3.6    19.2    -      -       +      +
    336G  ALA*     3.6    39.3    -      -       +      -
    339G  LEU*     4.0    11.9    -      -       +      -
    551G  SER      2.9    18.5    +      -       -      +
    552G  LYS      3.5     3.4    -      -       -      +
    554G  LYS*     1.3    76.7    -      -       -      +
    556G  LYS*     1.3    56.0    +      -       -      +
    558G  SER      3.7     0.5    -      -       -      -
    559G  LEU*     2.9    70.7    +      -       +      +
     85H  GLU*     3.3    39.9    -      -       +      -
     88H  GLU*     4.1     3.6    -      -       +      -
     89H  ALA*     3.5    27.4    -      -       +      -
     92H  VAL*     5.2     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 556 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    552G  LYS      2.9    12.4    +      -       -      +
    553G  ARG*     3.1    13.0    +      -       +      +
    555G  PHE*     1.3    74.6    -      -       -      +
    557G  GLU*     1.3    65.3    +      -       +      +
    559G  LEU*     3.3    16.5    -      -       +      +
    560G  ARG*     2.4    50.3    +      -       -      +
     81H  ASP      6.0     0.7    -      -       -      -
     84H  GLU*     4.4    13.9    +      -       -      +
     85H  GLU*     3.2    48.2    -      -       -      +
     88H  GLU*     4.7     3.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 557 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    553G  ARG*     2.9    35.8    +      -       -      +
    554G  LYS*     3.2    33.0    +      -       -      +
    556G  LYS*     1.3    79.9    -      -       +      +
    558G  SER*     1.3    58.2    +      -       -      +
    559G  LEU      3.1     4.4    +      -       -      -
    560G  ARG*     3.5    15.3    +      -       -      +
     51H  ASP*     5.1     6.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 558 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331G  LYS      4.2     4.0    +      -       -      -
    332G  ARG*     3.4    30.2    -      -       -      +
    335G  PRO*     3.5    26.2    -      -       -      +
    554G  LYS*     3.0    11.3    +      -       -      -
    555G  PHE      3.7     1.6    -      -       -      -
    557G  GLU*     1.3    72.6    -      -       -      +
    559G  LEU*     1.3    59.6    +      -       -      +
    560G  ARG      3.1     7.5    +      -       -      -
    561G  PRO*     3.3    17.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 559 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    326G  GLN*     5.5     0.3    +      -       -      -
    332G  ARG*     2.4    57.7    +      -       -      +
    555G  PHE*     2.9    50.9    +      -       +      +
    556G  LYS*     3.3    24.0    -      -       +      +
    557G  GLU      3.1     1.0    -      -       -      -
    558G  SER*     1.3    77.4    -      -       -      +
    560G  ARG*     1.3    88.8    +      -       -      +
    561G  PRO*     3.4     2.2    -      -       -      -
     88H  GLU*     4.0    30.1    -      -       +      +
     91H  ARG*     5.3     0.9    -      -       -      +
----------------------------------------------------------
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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