Contacts of the helix formed by residues 306 - 329 (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 ALA 306 (chain G).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    309A  ALA*     4.1    20.3    -      -       +      +
    275G  LEU      6.1     0.2    -      -       -      +
    277G  THR*     6.1     4.0    -      -       +      +
    302G  VAL      3.5    19.4    +      -       -      +
    303G  SER      4.0     3.1    +      -       -      -
    304G  PHE      3.3     0.4    -      -       -      -
    305G  PHE*     1.3    76.3    -      -       -      +
    307G  LEU*     1.3    61.6    +      -       -      +
    308G  PRO*     3.7     1.3    -      -       -      -
    309G  ALA*     4.2    10.9    +      -       +      +
    310G  GLY*     3.9    11.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 307 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    309A  ALA*     3.3    26.9    -      -       -      +
    312A  LEU*     3.7    20.0    -      -       +      -
    313A  GLY*     3.5    20.0    -      -       -      +
    316A  PHE*     4.4    17.9    -      -       +      -
    235G  ALA*     3.9    18.8    -      -       +      -
    303G  SER      3.4    13.7    +      -       -      +
    304G  PHE*     3.9    32.8    -      -       +      +
    306G  ALA*     1.3    74.9    -      -       -      +
    308G  PRO*     1.3    69.6    -      -       +      +
    309G  ALA      3.2     2.2    -      -       -      -
    310G  GLY*     3.0     4.9    +      -       -      -
    311G  ILE*     2.8    34.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 308 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303D  SER*     4.0    14.4    -      -       -      +
    232G  LEU*     3.7    26.9    -      -       +      -
    235G  ALA*     4.2     9.2    -      -       +      -
    236G  TRP*     3.6    40.2    -      -       +      +
    304G  PHE      4.2     7.2    -      -       -      +
    305G  PHE      4.1    10.3    -      -       -      +
    306G  ALA      3.9     0.9    -      -       -      -
    307G  LEU*     1.3    93.2    -      -       +      +
    309G  ALA*     1.3    61.7    +      -       -      +
    311G  ILE*     4.1     2.2    -      -       +      -
    312G  LEU*     2.9    33.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 309 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    302D  VAL      5.0     0.7    -      -       -      +
    303D  SER*     4.2    23.8    +      -       -      +
    306D  ALA*     4.1    29.3    -      -       +      +
    307D  LEU*     3.3    15.5    -      -       -      +
    310D  GLY*     5.4     1.4    -      -       -      -
    306G  ALA*     4.3    12.8    -      -       +      +
    307G  LEU      3.2     0.8    -      -       -      -
    308G  PRO*     1.3    82.4    -      -       -      +
    310G  GLY*     1.3    57.4    +      -       -      +
    312G  LEU*     5.6     0.4    -      -       -      -
    313G  GLY*     2.9    24.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 310 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    309A  ALA      5.4     3.8    -      -       -      -
    310A  GLY*     5.4     7.6    -      -       -      -
    313A  GLY*     4.3    12.4    -      -       -      -
    314A  SER      4.7     0.3    +      -       -      -
    310D  GLY*     5.4     8.7    -      -       -      -
    306G  ALA      3.9     5.9    +      -       -      -
    307G  LEU      3.0     7.2    +      -       -      -
    309G  ALA*     1.3    76.6    -      -       -      +
    311G  ILE*     1.3    65.5    +      -       -      +
    313G  GLY*     3.7     1.5    -      -       -      -
    314G  SER*     3.0    25.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 311 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    313A  GLY*     3.6    29.6    -      -       -      +
    316A  PHE*     3.4    34.1    -      -       +      -
    317A  ALA*     4.4     3.5    -      -       -      +
    228G  HIS*     3.9    26.9    -      -       +      +
    231G  GLU*     4.4    13.0    -      -       +      +
    232G  LEU*     3.8    24.7    -      -       +      -
    235G  ALA*     4.8     1.1    -      -       +      -
    307G  LEU*     2.8    31.6    +      -       +      +
    308G  PRO*     3.8     3.8    -      -       +      +
    310G  GLY*     1.3    78.4    -      -       -      +
    312G  LEU*     1.3    59.7    +      -       -      +
    314G  SER*     3.7     2.3    -      -       -      -
    315G  GLY*     2.8    25.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 312 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303D  SER*     5.8     7.0    -      -       -      +
    304D  PHE*     5.5     4.3    -      -       +      -
    307D  LEU*     3.7    25.8    -      -       +      -
    221G  LEU*     5.1     6.5    -      -       +      -
    224G  VAL*     4.2    23.3    -      -       +      +
    225G  VAL*     4.0    22.7    -      -       +      -
    228G  HIS*     5.0     3.8    -      -       +      -
    232G  LEU*     4.0    32.1    -      -       +      -
    236G  TRP*     6.2     2.5    -      -       +      -
    308G  PRO*     2.9    25.0    +      -       +      +
    309G  ALA*     5.6     0.2    -      -       -      -
    311G  ILE*     1.3    76.7    -      -       -      +
    313G  GLY*     1.3    61.1    +      -       -      +
    315G  GLY*     3.5     2.4    -      -       -      +
    316G  PHE*     2.9    34.8    +      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 313 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    307D  LEU*     3.5     5.1    -      -       -      +
    310D  GLY      4.3     4.0    -      -       -      -
    311D  ILE*     3.6    39.2    -      -       -      +
    309G  ALA      2.9    18.6    +      -       -      -
    310G  GLY      3.7     1.3    -      -       -      -
    312G  LEU*     1.3    78.2    -      -       -      +
    314G  SER*     1.3    61.7    +      -       -      +
    316G  PHE      3.3     0.3    +      -       -      -
    317G  ALA*     3.1    21.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 314 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    314A  SER*     3.3    25.3    +      -       -      -
    317A  ALA*     3.7    22.0    -      -       -      +
    318A  LEU*     5.4     0.3    -      -       -      +
    310D  GLY      4.7     1.0    +      -       -      -
    314D  SER*     3.3    27.7    +      -       -      -
    310G  GLY      3.0    16.7    +      -       -      -
    313G  GLY*     1.3    75.3    -      -       -      +
    315G  GLY*     1.3    57.5    +      -       -      +
    317G  ALA*     3.6     0.3    -      -       -      +
    318G  LEU*     3.0    38.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 315 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    317A  ALA*     4.4     0.9    -      -       -      +
    224G  VAL*     4.3     8.0    -      -       -      +
    228G  HIS*     4.0    25.0    +      -       -      -
    311G  ILE      2.8    16.3    +      -       -      -
    312G  LEU*     3.5     4.0    -      -       -      -
    313G  GLY      3.1     0.6    -      -       -      -
    314G  SER*     1.3    74.0    -      -       -      +
    316G  PHE*     1.3    67.3    +      -       -      +
    318G  LEU*     3.4     4.3    +      -       -      +
    319G  LYS*     2.9    25.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 316 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231D  GLU*     2.7    56.9    -      -       +      +
    234D  THR*     4.9    10.3    -      -       +      -
    235D  ALA*     5.3     1.1    -      -       +      -
    307D  LEU*     4.4    17.3    -      -       +      -
    311D  ILE*     3.4    29.2    -      -       +      -
    220G  LEU*     4.6     9.9    -      -       +      -
    221G  LEU*     4.3    28.0    -      -       +      -
    224G  VAL*     3.4    38.6    -      -       +      -
    312G  LEU*     2.9    23.2    +      -       +      -
    313G  GLY      3.8     6.3    -      -       -      +
    315G  GLY*     1.3    75.7    -      -       -      +
    317G  ALA*     1.3    63.4    +      -       -      +
    319G  LYS*     3.3     3.1    +      -       -      -
    320G  VAL*     3.0    14.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 317 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228D  HIS*     3.9    22.7    +      -       +      +
    311D  ILE*     4.4     4.7    -      -       -      +
    314D  SER*     3.7    29.6    -      -       -      +
    318D  LEU*     3.9    13.1    -      -       +      +
    313G  GLY      3.1    14.7    +      -       -      +
    314G  SER      3.6     7.4    -      -       -      +
    315G  GLY      3.2     0.4    -      -       -      -
    316G  PHE*     1.3    76.3    -      -       -      +
    318G  LEU*     1.3    64.1    +      -       -      +
    320G  VAL*     3.3     3.8    -      -       -      +
    321G  GLN*     3.0    23.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 318 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    317A  ALA*     3.9    31.4    -      -       +      +
    318A  LEU*     4.0    26.7    -      -       +      -
    321A  GLN*     4.4    27.0    +      -       +      +
    314D  SER*     5.4     0.2    -      -       -      +
    318D  LEU*     4.0    28.7    -      -       +      -
    228G  HIS*     5.8     1.3    -      -       +      -
    314G  SER*     3.0    27.6    +      -       -      +
    315G  GLY*     4.0     4.0    -      -       -      +
    317G  ALA*     1.3    74.7    -      -       -      +
    319G  LYS*     1.3    63.3    +      -       -      +
    321G  GLN*     3.3    10.0    +      -       -      +
    322G  GLU*     3.0    26.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 319 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231D  GLU*     4.7     2.9    -      -       -      +
    220G  LEU*     3.4    28.2    -      -       +      +
    223G  SER*     3.0    29.2    +      -       -      +
    224G  VAL*     3.6    19.9    -      -       +      +
    315G  GLY      2.9    19.4    +      -       -      +
    316G  PHE*     3.8     4.5    -      -       -      +
    318G  LEU*     1.3    76.6    -      -       -      +
    320G  VAL*     1.3    58.8    +      -       -      +
    322G  GLU*     3.3    15.5    -      -       -      +
    323G  GLN*     2.9    58.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 320 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227D  ALA      4.4    15.3    -      -       -      +
    228D  HIS*     3.4    30.1    -      -       +      +
    231D  GLU*     3.3    24.7    -      -       -      +
    316G  PHE      3.0    10.8    +      -       -      +
    317G  ALA      3.3    11.0    -      -       -      +
    319G  LYS*     1.3    77.7    -      -       -      +
    321G  GLN*     1.3    60.4    +      -       +      +
    323G  GLN*     3.8    16.2    -      -       +      +
    324G  HIS*     3.0    27.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 321 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    318D  LEU*     4.4    27.2    +      -       +      +
    322D  GLU*     3.8    23.2    +      -       -      +
    317G  ALA      3.0    18.6    +      -       -      +
    318G  LEU*     3.5    12.0    -      -       -      +
    319G  LYS      3.2     0.2    -      -       -      -
    320G  VAL*     1.3    80.5    -      -       +      +
    322G  GLU*     1.3    59.9    +      -       -      +
    324G  HIS*     3.3    13.7    +      -       +      +
    325G  ARG*     3.1    61.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 322 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    321A  GLN*     3.8    21.7    +      -       -      +
    324A  HIS*     5.4    11.1    +      -       -      -
    325A  ARG*     5.2     4.4    +      -       -      +
    318G  LEU      3.0    15.1    +      -       -      +
    319G  LYS*     3.3    18.5    -      -       -      +
    321G  GLN*     1.3    78.7    +      -       -      +
    323G  GLN*     1.3    68.9    +      -       +      +
    325G  ARG*     3.7     8.2    -      -       -      +
    326G  GLN*     2.9    30.7    +      -       -      +
    562G  TYR*     5.3    13.4    -      -       -      -
    563G  ASP*     4.5    16.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 323 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231D  GLU*     5.2     1.0    -      -       -      +
    319G  LYS*     2.9    53.7    +      -       +      +
    320G  VAL*     3.8    16.5    -      -       +      +
    321G  GLN      3.3     0.2    -      -       -      -
    322G  GLU*     1.3    78.1    -      -       +      +
    324G  HIS*     1.3    61.5    +      -       -      +
    326G  GLN*     3.7     8.7    -      -       -      +
    327G  LYS*     2.8    30.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 324 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322D  GLU*     5.4    12.1    +      -       -      -
    562D  TYR*     5.3    11.4    -      +       -      -
    320G  VAL*     3.0    16.0    +      -       +      +
    321G  GLN*     3.4    17.5    -      -       +      +
    323G  GLN*     1.3    73.2    -      -       -      +
    325G  ARG*     1.3    78.3    +      -       +      +
    327G  LYS*     3.0    20.9    +      -       -      +
    328G  HIS*     3.2    50.6    +      +       -      -
----------------------------------------------------------
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Residues in contact with ARG 325 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325A  ARG*     4.2    13.7    -      -       -      +
    322D  GLU*     5.2     4.9    +      -       -      +
    325D  ARG*     4.2    13.7    -      -       -      +
    563D  ASP*     3.8    22.6    +      -       -      -
    564D  VAL*     4.1    31.2    -      -       +      +
    321G  GLN*     3.1    42.1    +      -       -      +
    322G  GLU*     3.4     8.9    +      -       -      +
    324G  HIS*     1.3    90.2    -      -       +      +
    326G  GLN*     1.3    62.2    +      -       -      +
    328G  HIS*     3.1    14.8    +      -       -      +
    329G  PHE*     3.4    24.2    +      -       +      -
    563G  ASP*     3.6    32.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 326 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322G  GLU      2.9    20.5    +      -       -      +
    323G  GLN*     4.1     8.8    -      -       -      +
    325G  ARG*     1.3    72.1    -      -       -      +
    327G  LYS*     1.3    61.5    +      -       -      +
    329G  PHE*     3.5    20.4    +      -       -      +
    330G  GLU*     4.0     3.6    +      -       -      +
    332G  ARG*     4.6    15.2    +      -       -      +
    559G  LEU      5.5     0.2    +      -       -      -
    560G  ARG*     4.8     3.2    -      -       -      +
    561G  PRO      3.3    30.5    +      -       -      +
    562G  TYR*     3.3    42.5    -      -       +      -
    563G  ASP*     5.2     5.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 327 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    323G  GLN      2.8    19.3    +      -       -      +
    324G  HIS*     3.0    12.9    +      -       -      +
    326G  GLN*     1.3    77.7    -      -       -      +
    328G  HIS*     1.3    79.9    +      -       +      +
    329G  PHE      3.6     0.5    +      -       -      -
    330G  GLU*     4.3    16.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 328 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    562D  TYR*     6.2     2.2    -      +       -      -
    565D  MET*     3.9    29.9    -      -       +      +
    324G  HIS*     3.2    43.2    +      +       -      +
    325G  ARG*     3.1    10.9    +      -       -      +
    327G  LYS*     1.3   100.9    +      -       +      +
    329G  PHE*     1.3    66.5    +      -       +      +
    330G  GLU*     3.6     4.8    +      -       -      +
    333G  ARG*     5.7     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 329 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    564D  VAL*     3.8    34.3    -      -       +      -
    565D  MET*     3.5    51.8    -      -       +      -
    568D  ILE*     4.1    20.9    -      -       +      -
    569D  GLU*     4.4    12.6    -      -       -      -
    325G  ARG*     3.4    23.1    +      -       +      +
    326G  GLN*     3.5    10.1    +      -       -      +
    327G  LYS      3.3     1.0    -      -       -      -
    328G  HIS*     1.3    88.9    -      -       +      +
    330G  GLU*     1.3    64.5    +      -       -      +
    331G  LYS*     3.5    17.6    -      -       +      +
    332G  ARG*     4.9     0.2    +      -       -      -
    333G  ARG*     5.9     0.2    -      -       -      +
    561G  PRO*     4.0    16.4    -      -       -      +
    562G  TYR      5.0     5.2    -      -       -      +
    563G  ASP*     4.6    15.7    -      -       +      -
    566G  ASP*     4.9     9.6    -      -       -      +
----------------------------------------------------------
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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