Contacts of the helix formed by residues 496 - 523 (chain A) in PDB entry 4UQG


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 496 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    494A  LYS      4.3     0.2    +      -       -      -
    495A  VAL*     1.3    69.8    -      -       -      +
    497A  THR*     1.3    62.1    +      -       -      +
    498A  LYS*     3.5    11.3    +      -       -      +
    499A  ARG*     3.1    39.7    +      -       +      +
    500A  LEU*     3.2    10.6    +      -       -      +
    638A  GLN      4.9     1.4    -      -       -      +
    639A  ALA*     2.7    23.9    +      -       -      +
    641A  VAL*     4.1    21.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 497 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    495A  VAL*     3.1    16.6    +      -       +      +
    496A  ASP*     1.3    73.6    +      -       -      +
    498A  LYS*     1.3    60.5    +      -       -      +
    500A  LEU*     3.3     3.9    +      -       -      +
    501A  GLU*     2.9    41.4    +      -       -      +
    592A  LEU*     4.0    23.3    -      -       +      +
    595A  VAL*     3.8    29.4    -      -       +      -
    600A  LYS*     4.4    15.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 498 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    496A  ASP*     3.2     8.4    +      -       -      +
    497A  THR*     1.3    82.5    +      -       -      +
    499A  ARG*     1.3    61.8    +      -       -      +
    501A  GLU*     3.3    14.6    +      -       -      +
    502A  GLN*     3.0    29.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 499 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    496A  ASP*     3.1    31.4    +      -       +      +
    498A  LYS*     1.3    79.3    -      -       -      +
    500A  LEU*     1.3    57.4    +      -       -      +
    502A  GLN*     3.2    46.4    -      -       -      +
    503A  MET*     3.0    58.7    +      -       +      +
    506A  GLU*     5.1     5.7    +      -       -      -
    635A  LYS*     4.8     8.1    -      -       -      +
    638A  GLN*     2.6    47.8    +      -       -      +
    639A  ALA*     4.7     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 500 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    495A  VAL*     3.7    23.8    -      -       +      -
    496A  ASP      3.2     8.8    +      -       -      +
    497A  THR      3.7     6.1    -      -       -      +
    499A  ARG*     1.3    73.6    -      -       -      +
    501A  GLU*     1.3    62.8    +      -       -      +
    503A  MET*     3.3    11.8    +      -       -      +
    504A  GLY      2.8    23.6    +      -       -      -
    588A  ILE*     3.7    35.0    -      -       +      +
    591A  LEU*     3.9    34.8    -      -       +      -
    592A  LEU*     3.8    26.9    -      -       +      +
    595A  VAL*     5.3     0.2    -      -       +      -
    636A  ILE*     4.6     6.3    -      -       +      -
    639A  ALA*     3.6    25.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 501 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    497A  THR*     2.9    27.9    +      -       -      +
    498A  LYS*     3.6    17.0    -      -       -      +
    500A  LEU*     1.3    77.8    -      -       -      +
    502A  GLN*     1.3    57.4    +      -       -      +
    504A  GLY*     3.3     3.3    +      -       -      +
    505A  GLU*     3.0    32.3    +      -       +      +
    588A  ILE*     5.3     0.2    -      -       -      -
    592A  LEU*     4.1    25.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 502 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    498A  LYS*     3.0    16.3    +      -       -      +
    499A  ARG*     3.2    48.8    -      -       -      +
    501A  GLU*     1.3    73.4    -      -       -      +
    503A  MET*     1.3    67.5    +      -       -      +
    505A  GLU*     3.2     9.2    +      -       +      +
    506A  GLU*     3.1    33.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 503 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    499A  ARG*     3.0    66.4    +      -       +      +
    500A  LEU*     3.5    16.4    -      -       -      +
    502A  GLN*     1.3    75.4    -      -       -      +
    504A  GLY*     1.3    57.4    +      -       -      +
    506A  GLU*     3.2    15.7    +      -       -      +
    507A  LEU*     2.9    36.8    +      -       +      +
    588A  ILE*     4.2     8.5    -      -       +      -
    635A  LYS*     3.1    36.8    -      -       +      +
    636A  ILE*     4.3    22.0    -      -       +      +
    638A  GLN*     3.5     3.4    -      -       +      +
    639A  ALA*     5.3     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 504 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    500A  LEU      2.8    14.5    +      -       -      -
    501A  GLU*     3.6     4.7    -      -       -      -
    503A  MET*     1.3    77.4    -      -       -      +
    505A  GLU*     1.3    56.3    +      -       -      +
    507A  LEU*     4.5     0.4    -      -       -      -
    508A  ALA*     3.0    14.9    +      -       -      +
    584A  GLN*     2.9    41.3    +      -       -      -
    588A  ILE*     3.9    10.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 505 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    501A  GLU*     3.0    19.7    +      -       +      +
    502A  GLN*     3.6    11.2    -      -       -      +
    503A  MET      3.2     0.4    -      -       -      -
    504A  GLY*     1.3    74.3    -      -       -      +
    506A  GLU*     1.3    65.0    +      -       +      +
    508A  ALA*     3.3     7.5    +      -       -      +
    509A  GLU*     3.3    21.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 506 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    499A  ARG*     5.1     4.6    +      -       -      -
    502A  GLN*     3.1    24.3    +      -       -      +
    503A  MET*     3.5    16.9    -      -       -      +
    505A  GLU*     1.3    72.1    -      -       +      +
    507A  LEU*     1.3    67.0    +      -       +      +
    509A  GLU*     3.0    21.1    +      -       -      +
    510A  GLN*     3.0    28.3    +      -       -      +
----------------------------------------------------------
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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
----------------------------------------------------------
    503A  MET*     2.9    24.5    +      -       +      +
    504A  GLY      3.9     3.8    -      -       -      +
    506A  GLU*     1.3    73.6    -      -       +      +
    508A  ALA*     1.3    58.2    +      -       -      +
    510A  GLN*     3.3     8.3    +      -       -      +
    511A  LEU*     2.8    34.3    +      -       +      +
    580A  LEU*     3.4    41.7    -      -       +      +
    583A  LEU*     3.9    27.4    -      -       +      -
    584A  GLN*     4.0    18.8    -      -       +      +
    588A  ILE*     3.9    29.4    -      -       +      -
    636A  ILE*     5.5     1.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 508 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    504A  GLY      3.0    19.8    +      -       -      +
    505A  GLU*     3.6     8.3    -      -       -      +
    506A  GLU      3.1     0.4    -      -       -      -
    507A  LEU*     1.3    75.5    -      -       -      +
    509A  GLU*     1.3    61.4    +      -       -      +
    511A  LEU*     3.5     7.6    +      -       -      +
    512A  ARG*     3.2    34.0    +      -       +      +
    584A  GLN*     3.7    11.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 509 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    505A  GLU      3.3     8.8    +      -       -      +
    506A  GLU*     3.0    13.3    +      -       -      +
    508A  ALA*     1.3    76.5    -      -       -      +
    510A  GLN*     1.3    65.4    +      -       +      +
    512A  ARG*     3.2    11.6    +      -       -      +
    513A  THR*     3.0    30.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 510 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    506A  GLU*     3.0    29.1    +      -       -      +
    507A  LEU*     3.8     7.2    -      -       -      +
    509A  GLU*     1.3    76.0    -      -       +      +
    511A  LEU*     1.3    63.8    +      -       -      +
    513A  THR*     3.4     7.7    +      -       -      -
    514A  VAL*     3.0    29.1    +      -       +      +
    576A  HIS*     4.8     7.8    +      -       -      +
    580A  LEU*     3.8    31.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 511 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    507A  LEU*     2.8    25.0    +      -       +      +
    508A  ALA*     3.8     6.5    -      -       -      +
    509A  GLU      3.3     0.2    -      -       -      -
    510A  GLN*     1.3    73.9    -      -       -      +
    512A  ARG*     1.4    53.3    +      -       +      +
    514A  VAL*     3.5     2.3    +      -       -      +
    515A  GLU*     2.9    36.9    +      -       -      +
    577A  TYR*     3.6    42.4    -      -       +      +
    580A  LEU*     3.6    28.9    -      -       +      +
    581A  GLY*     3.7     9.6    -      -       -      +
    584A  GLN*     4.1    32.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 512 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    508A  ALA*     3.2    24.8    +      -       -      +
    509A  GLU*     3.2    10.5    +      -       -      +
    511A  LEU*     1.4    74.9    -      -       +      +
    513A  THR*     1.3    62.0    +      -       -      +
    515A  GLU*     3.5    16.3    +      -       -      +
    516A  GLN*     3.1    31.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 513 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    509A  GLU*     3.0    18.2    +      -       -      +
    510A  GLN*     3.5    11.0    -      -       -      -
    512A  ARG*     1.3    74.4    -      -       -      +
    514A  VAL*     1.3    68.5    +      -       +      +
    516A  GLN*     3.1     7.3    +      -       -      +
    517A  ARG*     3.1    22.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 514 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    510A  GLN*     3.0    17.9    +      -       +      +
    511A  LEU      4.1     2.5    -      -       -      +
    513A  THR*     1.3    77.0    -      -       +      +
    515A  GLU*     1.3    56.9    +      -       -      +
    517A  ARG*     3.2     8.1    +      -       -      +
    518A  ILE*     2.9    29.0    +      -       +      +
    573A  ASN*     3.2    45.5    -      -       +      +
    576A  HIS*     3.5    29.2    -      -       +      +
    577A  TYR*     4.0    17.0    -      -       +      +
    580A  LEU*     4.0     7.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 515 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    511A  LEU      2.9    17.2    +      -       -      +
    512A  ARG*     3.6    20.9    -      -       -      +
    513A  THR      3.2     0.2    -      -       -      -
    514A  VAL*     1.3    75.3    -      -       -      +
    516A  GLN*     1.3    71.9    +      -       -      +
    518A  ILE*     3.3     5.2    +      -       -      +
    519A  TYR*     3.1    62.4    +      -       +      +
    528A  ILE*     4.1    13.7    -      -       +      -
    577A  TYR*     4.1    16.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 516 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    512A  ARG*     3.1    20.9    +      -       +      +
    513A  THR*     3.1     6.5    +      -       -      +
    515A  GLU*     1.3    87.6    +      -       -      +
    517A  ARG*     1.3    57.5    +      -       -      +
    519A  TYR*     3.3    29.9    +      -       -      +
    520A  GLU*     2.9    29.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 517 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    513A  THR*     3.1    13.0    +      -       +      +
    514A  VAL*     3.3    12.3    -      -       -      +
    516A  GLN*     1.3    74.8    -      -       -      +
    518A  ILE*     1.3    57.8    +      -       -      +
    520A  GLU*     3.0    41.3    +      -       -      +
    521A  LEU*     2.8    50.2    +      -       +      +
    569A  GLU*     3.0    34.2    +      -       -      -
    573A  ASN*     3.3    28.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 518 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    514A  VAL      2.9    17.4    +      -       -      +
    515A  GLU      3.5     7.2    -      -       -      +
    517A  ARG*     1.3    76.2    -      -       -      +
    519A  TYR*     1.3    56.6    +      -       -      +
    521A  LEU*     4.7     0.7    -      -       -      -
    522A  ALA*     2.9    28.6    +      -       -      +
    526A  PHE*     3.7    28.3    -      -       +      -
    528A  ILE*     3.9    22.9    -      -       +      -
    570A  ILE*     3.7    17.2    -      -       +      +
    573A  ASN*     3.6    40.8    -      -       +      +
    574A  ILE*     3.9    14.6    -      -       +      +
    577A  TYR*     3.8    19.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 519 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    515A  GLU*     3.1    49.9    +      -       +      +
    516A  GLN*     3.3    26.9    +      -       -      +
    518A  ILE*     1.3    73.1    -      -       +      +
    520A  GLU*     1.3    60.3    +      -       -      +
    523A  GLY*     2.9    24.1    +      -       -      -
    524A  GLN      3.1    31.5    +      -       -      +
    525A  GLU*     3.7    17.0    -      -       +      +
    526A  PHE*     3.1    41.6    +      +       -      -
    527A  ASN*     5.1     0.3    -      -       -      -
    528A  ILE*     3.8    21.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 520 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    516A  GLN      2.9    12.6    +      -       -      +
    517A  ARG*     3.0    43.6    +      -       -      +
    519A  TYR*     1.3    77.9    -      -       -      +
    521A  LEU*     1.3    62.4    +      -       -      +
    523A  GLY*     3.1    14.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 521 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    517A  ARG*     2.8    56.7    +      -       +      +
    518A  ILE      4.0     3.1    -      -       -      +
    520A  GLU*     1.3    73.5    -      -       -      +
    522A  ALA*     1.3    59.8    +      -       -      +
    542A  LEU*     4.7     2.9    -      -       -      +
    568A  HIS*     3.8    24.7    +      -       +      -
    569A  GLU*     3.6    34.3    -      -       +      +
    570A  ILE*     3.6    16.8    -      -       +      +
    573A  ASN*     3.4    29.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 522 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    518A  ILE      2.9    19.9    +      -       -      +
    521A  LEU*     1.3    77.2    -      -       -      +
    523A  GLY*     1.3    58.1    +      -       -      +
    524A  GLN      3.6     8.7    +      -       -      +
    526A  PHE*     3.8    20.0    -      -       +      -
    537A  ILE*     3.9    14.3    -      -       +      +
    541A  LYS*     2.9    32.4    +      -       -      -
    542A  LEU*     4.6     7.0    -      -       -      +
    570A  ILE*     3.8    17.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 523 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    519A  TYR      2.9     9.0    +      -       -      -
    520A  GLU      3.1    10.7    +      -       -      -
    521A  LEU      3.6     0.2    +      -       -      -
    522A  ALA*     1.3    77.2    -      -       -      +
    524A  GLN*     1.3    64.0    +      -       -      +
    541A  LYS*     4.7     6.6    -      -       -      -
----------------------------------------------------------
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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