Contacts of the strand formed by residues 501 - 525 (chain A) in PDB entry 5C58


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 501 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    495A  TYR*     3.5    12.2    -      -       +      +
    496A  ASP*     3.2     4.0    -      -       -      -
    497A  TYR*     2.8    60.3    +      -       +      +
    500A  TRP*     1.3    97.0    -      -       +      +
    502A  THR*     1.3    68.3    +      -       -      +
    503A  LEU*     4.6    17.0    -      -       +      -
    569A  VAL*     5.5     3.1    -      -       +      -
    570A  ALA      3.7     1.1    -      -       -      +
    571A  VAL*     3.6    23.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 502 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120A  PRO*     4.6    12.5    -      -       +      +
    494A  THR*     5.9     3.6    -      -       -      -
    495A  TYR      3.2     7.2    -      -       -      -
    496A  ASP*     3.4    20.9    -      -       -      +
    499A  GLY      6.3     0.2    -      -       -      -
    500A  TRP*     5.2     2.2    -      -       -      -
    501A  LEU*     1.3    79.5    -      -       -      +
    503A  LEU*     1.3    70.5    +      -       -      +
    504A  GLU*     5.2     2.3    +      -       -      +
    568A  ALA*     4.5     2.0    +      -       -      +
    569A  VAL*     3.8     2.8    -      -       -      +
    570A  ALA*     2.9    45.0    +      -       -      +
    579A  GLU*     4.1    17.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 503 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    493A  LEU      3.7     2.8    -      -       -      +
    494A  THR*     3.7     1.5    -      -       -      +
    495A  TYR*     2.7    62.1    +      -       +      +
    501A  LEU*     4.6    16.6    -      -       +      -
    502A  THR*     1.3    80.1    -      -       -      +
    504A  GLU*     1.3    61.4    +      -       -      +
    505A  GLY      4.1     0.2    +      -       -      -
    568A  ALA      3.7     1.3    -      -       -      +
    569A  VAL*     3.9    27.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 504 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119A  GLU*     5.3     3.8    -      -       -      +
    120A  PRO*     4.7    11.8    -      -       +      +
    121A  ARG*     5.5     6.6    -      -       -      +
    454A  ARG*     5.5     2.8    +      -       -      -
    492A  ASN*     4.7    17.9    +      -       +      +
    493A  LEU      3.3     5.2    -      -       -      +
    494A  THR*     3.6    28.6    +      -       +      +
    502A  THR*     5.2     2.2    +      -       -      +
    503A  LEU*     1.3    75.8    -      -       -      +
    505A  GLY*     1.3    63.5    +      -       -      +
    506A  GLY      5.3     0.2    -      -       -      +
    566A  THR*     5.5     4.5    -      -       +      -
    567A  LEU*     3.6     5.6    -      -       -      +
    568A  ALA*     2.8    53.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 505 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    491A  ALA      4.5     0.5    -      -       -      +
    492A  ASN*     3.7     1.5    -      -       -      -
    493A  LEU*     2.8    37.6    +      -       -      +
    503A  LEU      4.1     0.4    +      -       -      -
    504A  GLU*     1.3    78.0    -      -       -      +
    506A  GLY*     1.3    58.6    +      -       -      -
    566A  THR      3.3    10.8    -      -       -      -
    567A  LEU*     3.7    12.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 506 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214A  GLY*     6.5     0.7    -      -       -      -
    491A  ALA      3.5     2.0    -      -       -      -
    492A  ASN*     3.5    26.3    -      -       -      +
    504A  GLU*     5.3     0.6    -      -       -      +
    505A  GLY*     1.3    75.2    -      -       -      -
    507A  LEU*     1.3    58.8    +      -       -      -
    565A  PRO*     3.5     1.2    -      -       -      +
    566A  THR*     2.7    46.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 507 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214A  GLY*     5.6     1.1    -      -       -      +
    489A  LEU      5.4     2.2    -      -       -      +
    490A  PHE*     3.4     2.9    -      -       -      +
    491A  ALA*     3.1    42.5    +      -       +      +
    506A  GLY*     1.3    74.8    -      -       -      +
    508A  ARG*     1.3    62.8    +      -       -      +
    509A  TYR      5.5     0.2    -      -       -      +
    563A  LEU*     3.9    34.3    -      -       +      -
    564A  SER      3.3     9.6    -      -       -      +
    565A  PRO*     4.4     7.9    -      -       +      -
    566A  THR*     5.5     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 508 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213A  THR      3.0    24.2    +      -       -      -
    214A  GLY*     4.3     8.6    -      -       -      +
    215A  GLY      5.3     0.7    -      -       -      -
    216A  MET      5.8     1.3    -      -       -      -
    218A  SER*     3.0    41.8    +      -       -      -
    219A  ALA      3.3     3.8    +      -       -      -
    221A  THR*     5.7     1.0    -      -       -      -
    488A  SER*     4.7     7.2    -      -       -      -
    489A  LEU      3.6    10.8    -      -       -      +
    490A  PHE*     3.9    17.3    -      -       +      -
    507A  LEU*     1.3    76.3    -      -       -      +
    509A  TYR*     1.3    62.0    +      -       -      +
    510A  ASP*     2.6    50.8    +      -       -      +
    562A  LYS      3.7     2.4    -      -       -      +
    563A  LEU*     3.3     4.9    -      -       -      +
    564A  SER*     2.8    50.1    +      -       -      +
    566A  THR*     5.3     2.0    +      -       -      -
    586A  LYS      4.1    17.8    +      -       -      -
    587A  SER*     4.5     9.1    -      -       -      +
    588A  TRP      5.0     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 509 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    487A  ALA      3.6     1.7    -      -       -      +
    488A  SER*     3.3     3.1    -      -       -      -
    489A  LEU*     2.9    48.7    +      -       +      +
    507A  LEU*     5.5     0.6    -      -       +      +
    508A  ARG*     1.3    71.6    -      -       -      +
    510A  ASP*     1.3    78.6    +      -       -      +
    511A  ARG*     3.9    28.6    +      -       +      +
    561A  GLY*     3.7    13.6    +      -       -      -
    562A  LYS      3.9    15.5    -      -       -      -
    563A  LEU*     3.9    22.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 510 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219A  ALA*     3.2    14.7    -      -       -      +
    486A  VAL*     4.5     5.4    -      -       +      -
    487A  ALA      3.4     4.3    -      -       -      +
    488A  SER*     3.2    17.9    +      -       -      +
    508A  ARG*     2.6    48.6    +      -       -      +
    509A  TYR*     1.3    76.6    -      -       -      +
    511A  ARG*     1.3    63.1    +      -       -      +
    561A  GLY*     3.1    22.5    -      -       -      -
    562A  LYS      3.1    13.8    +      -       -      +
    564A  SER*     4.6     0.5    +      -       -      -
    588A  TRP*     3.5    35.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 511 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    486A  VAL*     3.2     2.3    -      -       -      +
    487A  ALA*     2.7    47.7    +      -       +      +
    509A  TYR*     3.9    28.9    +      -       +      +
    510A  ASP*     1.3    78.5    -      -       -      +
    512A  TYR*     1.3    62.5    +      -       -      +
    513A  ARG*     5.4     6.7    -      -       +      +
    559A  ASP*     2.6    32.9    +      -       -      +
    560A  GLN*     3.5    18.8    -      -       -      +
    561A  GLY      5.2     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 512 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    484A  ARG*     4.1    13.0    -      -       +      +
    485A  SER      3.1    11.9    -      -       -      +
    486A  VAL*     3.6    13.6    -      -       +      +
    511A  ARG*     1.3    77.5    -      -       -      +
    513A  ARG*     1.3    65.3    +      -       -      +
    514A  LEU*     3.8    27.1    -      -       +      -
    558A  ARG*     2.7    33.2    +      -       +      +
    559A  ASP*     3.1    25.6    -      -       -      +
    560A  GLN*     3.3    44.9    +      -       +      -
    588A  TRP*     3.4    23.9    -      +       -      -
    590A  PRO*     3.4    31.0    -      -       +      -
    591A  PRO*     3.4    20.5    -      -       +      +
    616A  PRO*     5.1     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 513 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    483A  ASN*     3.6     5.0    -      -       -      +
    484A  ARG*     3.4     2.3    -      -       -      -
    485A  SER*     2.8    44.6    +      -       -      +
    511A  ARG*     5.4     5.2    -      -       +      +
    512A  TYR*     1.3    77.9    -      -       -      +
    514A  LEU*     1.3    58.9    +      -       -      +
    515A  ARG*     3.1    50.6    +      -       +      +
    557A  ASP*     3.5    27.8    +      -       -      +
    558A  ARG      3.2    12.6    -      -       -      +
    559A  ASP*     3.8    19.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 514 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    483A  ASN      3.2    17.5    -      -       -      +
    484A  ARG*     3.7    14.6    -      -       +      -
    512A  TYR*     3.8    11.5    -      -       +      -
    513A  ARG*     1.3    72.8    -      -       -      +
    515A  ARG*     1.3    70.7    +      -       -      +
    556A  VAL*     3.8     7.4    -      -       +      +
    557A  ASP*     3.6     2.6    -      -       -      -
    558A  ARG*     2.8    53.3    +      -       +      +
    591A  PRO*     3.7    13.0    -      -       +      +
    592A  ALA      3.5    11.7    -      -       -      +
    593A  ILE*     3.8    20.4    -      -       +      -
    596A  THR*     3.4    37.2    -      -       +      +
    597A  LEU*     4.7     2.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 515 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    463A  TYR*     2.9    39.4    +      -       -      -
    482A  GLY*     3.5     3.1    -      -       -      -
    483A  ASN*     2.9    57.7    +      -       -      +
    485A  SER*     5.6     1.2    +      -       -      -
    513A  ARG*     3.1    44.8    +      -       +      +
    514A  LEU*     1.3    80.4    -      -       -      +
    516A  GLY*     1.3    58.5    +      -       -      +
    517A  GLN*     6.2     0.4    -      -       -      +
    556A  VAL*     3.3     7.6    -      -       -      +
    557A  ASP*     3.4    22.7    -      -       +      +
    597A  LEU*     4.1     3.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 516 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    481A  ALA      4.5     5.2    -      -       -      -
    482A  GLY*     4.6     2.0    -      -       -      -
    483A  ASN*     5.4     0.2    -      -       -      -
    515A  ARG*     1.3    76.0    -      -       -      +
    517A  GLN*     1.3    77.1    +      -       -      +
    555A  ASP*     3.8     0.9    -      -       -      +
    556A  VAL*     2.8    36.2    +      -       -      +
    597A  LEU*     3.7    18.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 517 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    480A  PRO*     5.3     3.3    -      -       -      +
    481A  ALA      4.8     7.0    +      -       -      +
    515A  ARG*     6.2     0.2    -      -       -      +
    516A  GLY*     1.3    83.6    -      -       -      +
    518A  THR*     1.3    64.8    +      -       -      +
    554A  TRP      3.5     8.5    -      -       -      +
    555A  ASP*     3.4    26.1    +      -       +      +
    597A  LEU*     4.4     6.5    -      -       -      +
    599A  ASN*     5.5     0.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 518 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    517A  GLN*     1.3    75.8    -      -       -      +
    519A  GLY*     1.3    60.9    +      -       -      +
    551A  ARG*     4.8     1.8    -      -       -      -
    553A  ASP*     3.7     2.9    -      -       -      +
    554A  TRP*     2.7    53.0    +      -       +      +
    556A  VAL*     4.5     0.7    -      -       +      -
    597A  LEU*     2.8    44.7    +      -       +      -
    599A  ASN*     3.7    10.6    -      -       -      +
    610A  PRO*     3.1    30.1    -      -       +      +
    612A  PRO*     4.3     5.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 519 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    518A  THR*     1.3    79.5    +      -       -      +
    520A  LEU*     1.3    65.1    +      -       -      +
    551A  ARG*     3.2    28.5    -      -       -      +
    552A  GLU      3.5     5.2    -      -       -      -
    554A  TRP*     4.3     4.0    -      -       -      -
    599A  ASN*     4.0    15.7    +      -       -      +
    609A  TYR*     5.2     1.2    -      -       -      -
    610A  PRO*     3.4    16.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 520 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    519A  GLY*     1.3    76.3    -      -       -      +
    521A  SER*     1.3    84.4    +      -       -      +
    522A  TYR*     4.3    10.0    -      -       +      -
    550A  THR      3.8     0.7    -      -       -      +
    551A  ARG*     3.3    10.6    -      -       -      +
    552A  GLU*     3.2    30.4    +      -       +      +
    554A  TRP*     5.1     7.4    -      -       -      +
    609A  TYR*     3.5    35.7    -      -       +      -
    610A  PRO*     4.5     8.5    -      -       +      -
    663A  LYS*     4.2     9.6    -      -       +      -
    664A  PRO*     3.7    22.2    -      -       +      -
    720A  TRP*     4.5     8.7    -      -       +      -
    721A  LEU*     3.7    29.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 521 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    520A  LEU*     1.3    78.6    -      -       -      +
    522A  TYR*     1.3    66.2    +      -       -      +
    549A  THR*     4.4    11.2    +      -       -      -
    550A  THR      3.3     9.0    -      -       -      -
    551A  ARG*     3.2    24.4    +      -       -      +
    609A  TYR*     5.5     1.0    -      -       -      -
    663A  LYS*     3.3    24.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 522 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    520A  LEU*     4.3    17.9    -      -       +      -
    521A  SER*     1.3    82.0    -      -       -      +
    523A  PRO*     1.3    81.9    -      -       +      +
    524A  ASP*     4.1     7.2    -      -       +      -
    531A  ARG*     4.5    15.8    +      -       -      -
    549A  THR*     4.7     4.4    +      -       -      -
    550A  THR*     3.0    62.8    +      -       +      +
    552A  GLU*     3.5    26.6    +      -       +      +
    663A  LYS*     3.9    11.7    -      -       +      +
    664A  PRO*     3.2    45.2    -      -       +      +
    665A  GLY*     4.0    12.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 523 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    522A  TYR*     1.3    96.2    -      -       +      +
    524A  ASP*     1.3    62.6    +      -       -      +
    548A  THR      4.1     4.5    -      -       -      +
    549A  THR*     4.9     0.7    -      -       -      -
    663A  LYS*     5.2     0.9    -      -       +      -
    664A  PRO      4.7     0.4    -      -       -      +
    666A  LEU*     2.9    43.4    +      -       +      +
    667A  VAL      5.3     1.1    -      -       -      +
    668A  GLN*     3.5    47.6    -      -       +      +
     58B  SER*     6.2     0.9    -      -       -      -
     63B  GLN*     4.0    34.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 524 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    522A  TYR*     4.1     4.0    -      -       +      -
    523A  PRO*     1.3    78.2    -      -       -      +
    525A  LEU*     1.3    81.6    +      -       -      +
    526A  ALA*     3.3    13.9    +      -       -      +
    531A  ARG*     3.2    33.8    +      -       -      +
    548A  THR*     2.7    36.9    +      -       -      +
    550A  THR*     2.9    32.4    +      -       -      +
    666A  LEU*     3.6    14.8    -      -       -      +
    725A  LEU*     3.2    20.9    -      -       +      +
    738A  VAL*     5.5     0.2    -      -       -      +
     63B  GLN*     5.0     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 525 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    524A  ASP*     1.3    79.3    +      -       -      +
    526A  ALA*     1.3    61.2    +      -       -      +
    531A  ARG*     4.2     3.1    -      -       -      +
    532A  TYR*     3.2    31.9    +      -       +      +
    543A  LEU*     4.0    17.5    -      -       +      +
    546A  CYS*     3.4    27.8    -      -       +      +
    547A  SER*     3.6    18.4    -      -       -      +
    666A  LEU*     3.8    23.7    -      -       +      +
    725A  LEU*     5.1     0.2    -      -       -      +
    727A  TYR*     3.6    29.2    -      -       +      +
    737A  TYR      5.3     6.1    -      -       -      +
    738A  VAL*     3.6    24.7    -      -       +      +
     64B  VAL*     5.1     4.0    -      -       +      -
----------------------------------------------------------
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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