Contacts of the helix formed by residues 548 - 570 (chain A) in PDB entry 2DDH


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 548 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  PHE*     5.2     0.2    -      -       -      +
     15A  ASN      5.4     0.7    +      -       -      -
     18A  LEU*     3.3    34.0    -      -       +      +
    546A  ILE*     3.4     9.1    -      -       -      +
    547A  GLN*     1.3    76.2    -      -       -      +
    549A  LYS*     1.3    60.3    +      -       -      +
    550A  ALA*     3.1    15.6    +      -       -      +
    551A  VAL*     3.0    35.2    +      -       +      +
    552A  GLN*     3.0    23.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 549 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    546A  ILE      3.7     4.8    +      -       -      -
    547A  GLN*     3.2    21.7    +      -       -      +
    548A  ASP*     1.3    71.8    +      -       -      +
    550A  ALA*     1.3    60.7    +      -       -      +
    552A  GLN*     3.2    27.4    +      -       -      +
    553A  ALA*     2.9    30.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 550 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  THR*     3.2    27.5    +      -       -      +
     14A  PHE*     3.8    10.3    -      -       +      +
     15A  ASN      5.3     0.2    -      -       -      +
    548A  ASP*     3.1    10.1    +      -       -      +
    549A  LYS*     1.3    78.6    -      -       -      +
    551A  VAL*     1.3    62.8    +      -       -      +
    553A  ALA*     3.6     6.0    +      -       -      +
    554A  VAL*     3.2    28.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 551 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  PHE*     4.4     8.3    -      -       +      -
     15A  ASN      4.4     7.2    -      -       -      +
     18A  LEU*     3.9    22.9    -      -       +      -
     19A  ILE*     3.7    26.7    -      -       +      -
     22A  ILE*     4.1     9.9    -      -       +      -
    546A  ILE*     3.7    15.7    -      -       +      -
    548A  ASP*     3.0    31.5    +      -       +      +
    549A  LYS      3.1     0.2    -      -       -      -
    550A  ALA*     1.3    75.2    -      -       -      +
    552A  GLN*     1.3    66.7    +      -       -      +
    554A  VAL*     2.9    23.1    -      -       -      +
    555A  LEU*     3.1    17.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 552 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    543A  LEU*     3.2    37.8    +      -       +      +
    544A  PRO*     4.2    10.4    -      -       -      +
    546A  ILE*     3.2    31.7    -      -       +      +
    548A  ASP      3.0    13.6    +      -       -      +
    549A  LYS*     3.2    21.4    +      -       -      +
    551A  VAL*     1.3    77.7    -      -       -      +
    553A  ALA*     1.3    57.2    +      -       -      +
    555A  LEU*     3.4     2.5    +      -       -      +
    556A  ARG*     2.8    40.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 553 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    549A  LYS      2.9    18.0    +      -       -      +
    550A  ALA*     3.8     7.6    -      -       -      +
    552A  GLN*     1.3    76.5    -      -       -      +
    554A  VAL*     1.3    63.1    +      -       +      +
    556A  ARG*     3.2    11.8    +      -       -      +
    557A  ASN*     3.2    25.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 554 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  THR*     3.7     7.2    -      -       -      +
     14A  PHE*     3.7    28.9    -      -       +      -
     19A  ILE*     4.7     0.9    -      -       +      -
    550A  ALA      3.2    14.1    +      -       -      +
    551A  VAL*     2.9    24.2    -      -       -      +
    553A  ALA*     1.3    75.8    -      -       +      +
    555A  LEU*     1.3    70.0    +      -       +      +
    557A  ASN*     3.1    21.6    +      -       -      +
    558A  LEU*     3.2    15.5    +      -       -      +
    599A  ILE*     5.6     0.3    -      -       -      +
    602A  ASN*     3.3    32.1    -      -       +      +
    606A  LEU*     4.5    13.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 555 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  ILE*     4.4    14.4    -      -       +      -
     22A  ILE*     5.0     2.2    -      -       +      -
    339A  TYR*     3.8    33.0    -      -       +      -
    343A  PHE*     4.1    25.8    -      -       +      -
    539A  PHE*     3.8     6.9    -      -       +      -
    543A  LEU*     3.7    16.9    -      -       +      +
    546A  ILE*     4.4    14.4    -      -       +      -
    551A  VAL*     3.1    33.3    +      -       +      +
    552A  GLN*     4.5     0.4    -      -       -      -
    554A  VAL*     1.3    82.4    -      -       +      +
    556A  ARG*     1.3    60.3    +      -       -      +
    558A  LEU*     3.4    18.9    +      -       +      +
    559A  CYS*     3.0    27.0    +      -       -      +
    606A  LEU*     4.6     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 556 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    478A  ASN      5.4     1.2    +      -       -      -
    479A  SER*     4.9     5.1    -      -       -      +
    480A  LEU*     3.4    45.0    -      -       +      +
    481A  GLU*     4.7     9.1    +      -       -      -
    543A  LEU*     3.8    19.8    -      -       +      +
    552A  GLN*     2.8    26.4    +      -       +      +
    553A  ALA*     3.4    10.3    -      -       -      +
    554A  VAL      3.1     0.2    -      -       -      -
    555A  LEU*     1.3    77.1    -      -       -      +
    557A  ASN*     1.3    61.5    +      -       -      +
    559A  CYS*     3.2     3.2    +      -       -      +
    560A  LEU*     2.8    45.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 557 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    553A  ALA      3.2    13.5    +      -       -      +
    554A  VAL*     3.1    14.8    +      -       -      +
    556A  ARG*     1.3    83.5    -      -       -      +
    558A  LEU*     1.3    56.2    +      -       -      +
    560A  LEU*     3.6    14.7    -      -       -      +
    561A  LEU*     2.9    28.9    +      -       -      +
    591A  ARG*     5.1     3.2    -      -       -      +
    595A  LEU*     3.8    23.0    -      -       +      +
    598A  LEU*     4.3    22.4    -      -       -      +
    599A  ILE*     3.9    21.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 558 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    332A  PHE      4.7     2.5    -      -       -      +
    335A  LEU*     4.6     5.6    -      -       +      +
    336A  ALA*     3.3    35.5    -      -       +      +
    339A  TYR*     3.5    36.8    -      -       +      -
    539A  PHE*     4.0     7.6    -      -       +      -
    554A  VAL      3.2    10.9    +      -       -      +
    555A  LEU*     3.7    24.5    -      -       +      +
    556A  ARG      3.2     0.2    -      -       -      -
    557A  ASN*     1.3    73.1    -      -       -      +
    559A  CYS*     1.3    61.6    +      -       -      +
    561A  LEU*     3.2     1.3    +      -       -      -
    562A  TYR*     2.8    27.5    +      -       -      +
    599A  ILE*     3.9    24.0    -      -       +      -
    606A  LEU*     4.1    25.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 559 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    480A  LEU*     3.8    12.3    -      -       +      -
    536A  VAL*     4.5     0.9    -      -       -      -
    539A  PHE*     3.5    39.9    -      -       +      -
    540A  SER*     3.5    34.8    -      -       -      -
    543A  LEU*     3.9     9.9    -      -       +      -
    555A  LEU      3.0    18.1    +      -       -      +
    556A  ARG      3.5     5.2    -      -       -      +
    558A  LEU*     1.3    77.3    -      -       -      +
    560A  LEU*     1.3    59.1    +      -       -      +
    562A  TYR*     3.7     1.6    -      -       -      +
    563A  SER*     2.8    33.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 560 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    477A  ILE      5.7     0.4    -      -       -      +
    478A  ASN      4.7    10.5    -      -       -      +
    480A  LEU*     3.8    32.8    -      -       +      +
    483A  LEU*     3.8    18.4    -      -       +      -
    556A  ARG*     2.8    39.6    +      -       -      +
    557A  ASN*     3.6    21.5    -      -       -      +
    559A  CYS*     1.3    77.0    -      -       -      +
    561A  LEU*     1.3    55.8    +      -       -      +
    563A  SER*     3.4     1.7    +      -       -      -
    564A  LEU*     2.9    40.4    +      -       +      +
    591A  ARG*     5.1     8.5    -      -       -      +
    595A  LEU*     3.9    17.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 561 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    332A  PHE*     3.6    39.3    -      -       +      +
    333A  PRO*     3.7    15.5    -      -       +      -
    336A  ALA*     4.4     3.4    -      -       +      -
    557A  ASN      2.9    18.9    +      -       -      +
    558A  LEU      3.6     4.5    -      -       -      +
    560A  LEU*     1.3    76.8    -      -       -      +
    562A  TYR*     1.3    58.0    +      -       -      +
    564A  LEU*     4.7     0.9    -      -       -      -
    565A  TYR*     2.8    36.3    +      -       +      +
    592A  ILE*     3.8    40.2    -      -       +      +
    595A  LEU*     3.8    10.7    -      -       +      +
    596A  LEU*     4.2     7.4    -      -       +      -
    599A  ILE*     3.6    24.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 562 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    333A  PRO      4.8     2.9    -      -       -      -
    336A  ALA*     4.0    11.6    -      -       +      +
    337A  THR*     3.4    47.6    -      -       +      -
    340A  ALA*     4.3    11.2    -      -       +      -
    341A  PHE*     3.7     3.7    -      +       -      -
    380A  PHE*     3.5    19.9    -      -       -      -
    384A  THR*     5.9     0.2    -      -       -      +
    487A  TYR*     3.9     2.4    +      -       -      -
    532A  HIS*     3.5    27.6    +      +       -      -
    535A  VAL*     3.5    27.4    -      -       +      +
    536A  VAL*     3.9    25.1    -      -       +      -
    539A  PHE*     4.7     6.5    -      +       +      -
    558A  LEU      2.8    20.3    +      -       -      +
    559A  CYS*     3.7     6.1    -      -       -      +
    561A  LEU*     1.3    71.8    -      -       -      +
    563A  SER*     1.3    61.3    +      -       -      +
    565A  TYR*     3.7     9.3    -      +       -      +
    566A  GLY*     3.0    23.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 563 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    480A  LEU*     3.9     6.6    -      -       -      +
    483A  LEU*     3.9    26.9    -      -       -      -
    487A  TYR*     2.6    38.6    +      -       -      -
    536A  VAL*     3.6    20.2    -      -       -      +
    559A  CYS*     2.8    25.0    +      -       -      -
    560A  LEU*     3.7     3.6    -      -       -      -
    562A  TYR*     1.3    77.9    -      -       -      +
    564A  LEU*     1.3    66.8    +      -       -      +
    566A  GLY      3.2     0.2    +      -       -      -
    567A  ILE*     3.2     8.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 564 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    477A  ILE*     4.0    24.0    -      -       +      +
    483A  LEU*     3.7    28.9    -      -       +      -
    560A  LEU*     2.9    31.0    +      -       +      +
    561A  LEU      4.1     0.7    -      -       -      +
    563A  SER*     1.3    72.5    -      -       -      +
    565A  TYR*     1.3    63.6    +      -       -      +
    567A  ILE*     3.0     6.2    +      -       -      +
    568A  SER      2.9    19.2    +      -       -      -
    588A  VAL*     3.4    22.3    -      -       +      +
    591A  ARG*     3.5    25.1    -      -       +      -
    592A  ILE*     3.6    16.8    -      -       +      +
    595A  LEU*     3.4    27.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 565 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    329A  TYR*     3.7    41.0    +      +       -      -
    333A  PRO*     3.8    39.1    -      -       +      +
    334A  LEU*     5.6     7.5    -      -       +      +
    337A  THR*     5.5     5.2    -      -       -      -
    561A  LEU*     2.8    28.9    +      -       +      +
    562A  TYR*     3.7     8.5    -      +       -      +
    564A  LEU*     1.3    73.5    -      -       -      +
    566A  GLY*     1.3    59.8    +      -       -      +
    568A  SER*     3.2     1.9    +      -       -      -
    569A  GLN*     2.9    61.5    +      -       +      +
    592A  ILE*     3.5    14.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 566 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    487A  TYR*     3.0    18.4    -      -       -      -
    490A  ARG*     5.0     0.5    +      -       -      -
    532A  HIS*     3.9    18.6    -      -       -      -
    562A  TYR      3.0    13.6    +      -       -      -
    563A  SER      3.2     0.6    +      -       -      -
    565A  TYR*     1.3    80.2    -      -       -      +
    567A  ILE*     1.3    60.9    +      -       -      +
    569A  GLN*     3.6     6.2    +      -       -      +
    570A  LYS*     3.2    26.0    +      -       -      +
    574A  PHE*     4.3     2.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 567 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    477A  ILE*     4.2    10.5    -      -       +      -
    483A  LEU*     3.6    30.5    -      -       +      -
    486A  ALA*     4.6    10.3    -      -       +      -
    487A  TYR*     3.6    20.4    -      -       +      -
    563A  SER      3.2    12.3    +      -       -      +
    564A  LEU*     3.0    11.0    +      -       -      +
    566A  GLY*     1.3    75.0    -      -       -      +
    568A  SER*     1.3    60.3    -      -       -      +
    570A  LYS      3.3     1.0    -      -       -      -
    571A  GLY*     2.8    29.3    +      -       -      -
    574A  PHE*     3.7    24.5    -      -       +      -
    580A  ILE*     4.0    26.9    -      -       +      -
    585A  LEU*     4.1     7.6    -      -       +      +
    588A  VAL*     4.2    10.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 568 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    329A  TYR*     4.7     5.0    +      -       -      -
    564A  LEU      2.9     6.2    +      -       -      -
    565A  TYR*     3.6     7.6    -      -       -      -
    567A  ILE*     1.3    78.4    -      -       -      +
    569A  GLN*     1.3    71.7    +      -       -      +
    570A  LYS      3.3     0.7    +      -       -      -
    571A  GLY*     3.4     7.4    +      -       -      -
    585A  LEU*     4.1    11.2    -      -       -      +
    588A  VAL*     4.2     1.5    -      -       -      +
    589A  ASN*     2.5    30.8    +      -       -      -
    592A  ILE*     3.7    20.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 569 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    329A  TYR*     3.1    26.7    +      -       -      -
    565A  TYR*     2.9    54.2    +      -       +      +
    566A  GLY*     3.9     6.5    -      -       -      +
    567A  ILE      3.3     0.4    -      -       -      -
    568A  SER*     1.3    82.6    +      -       -      +
    570A  LYS*     1.3    67.5    +      -       +      +
    571A  GLY      3.6     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 570 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    490A  ARG*     3.6    15.9    -      -       -      +
    525A  ARG*     3.1    28.3    -      -       -      +
    528A  GLU*     4.0    21.3    +      -       -      -
    532A  HIS*     5.8     4.5    -      -       +      +
    566A  GLY      3.2    13.8    +      -       -      +
    567A  ILE      3.3     3.6    -      -       -      -
    568A  SER      3.2     0.4    -      -       -      -
    569A  GLN*     1.3    84.1    -      -       +      +
    571A  GLY*     1.3    66.0    +      -       -      +
    572A  GLY*     3.1     3.6    -      -       -      -
    573A  ASP*     2.9    41.1    +      -       -      +
    574A  PHE*     3.4     5.4    -      -       +      -
----------------------------------------------------------
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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