Contacts of the helix formed by residues 321 - 345 (chain C) in PDB entry 1EJI


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 THR 321 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    317C  LYS*     3.8    12.6    -      -       +      +
    318C  GLN*     2.9    26.8    +      -       +      +
    319C  ALA      4.0     1.2    -      -       -      +
    320C  MSE      1.3    83.0    -      -       -      +
    322C  THR*     1.3    60.0    +      -       -      +
    323C  GLU*     3.4    14.5    +      -       -      +
    324C  PHE*     3.0    18.0    +      -       -      +
    325C  LYS*     3.2    21.5    +      -       -      +
     21D  MSE      3.7    16.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 322 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    321C  THR*     1.3    72.2    -      -       -      +
    323C  GLU*     1.3    73.8    +      -       -      +
    324C  PHE      2.9     1.8    -      -       -      -
    325C  LYS*     3.1    12.5    +      -       +      +
    326C  ILE*     2.9    27.4    +      -       +      +
     14D  LEU*     3.3    24.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 323 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    321C  THR*     3.3    14.8    -      -       -      +
    322C  THR*     1.3    90.3    +      -       -      +
    324C  PHE*     1.3    54.6    -      -       -      +
    326C  ILE*     2.8    23.1    -      -       -      +
    327C  TYR      3.1     8.0    +      -       -      -
     14D  LEU*     3.4    12.6    -      -       +      +
     17D  SER*     3.3    35.9    +      -       -      -
     18D  HIS*     3.3    35.1    -      -       +      +
     21D  MSE      4.2    11.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 324 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234C  GLY*     3.9    15.3    -      -       -      -
    237C  ALA*     4.6     0.7    -      -       +      -
    238C  ALA*     4.2    12.1    -      -       +      -
    258C  THR      4.2     5.4    -      -       -      -
    259C  LEU*     4.2    23.8    -      -       +      -
    260C  ARG*     3.5    28.9    -      -       +      -
    318C  GLN*     3.1    21.1    -      -       +      +
    319C  ALA*     2.7    46.4    -      -       +      +
    321C  THR*     3.0    12.0    +      -       -      +
    323C  GLU*     1.3    74.7    -      -       -      +
    325C  LYS*     1.3    59.8    +      -       -      +
    326C  ILE      3.0     1.6    -      -       -      -
    327C  TYR*     2.8    27.8    +      +       -      +
    328C  GLN*     2.9    39.0    +      -       -      +
     21D  MSE      4.6     2.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 325 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238C  ALA*     2.9    44.8    +      -       +      +
    239C  GLY*     4.4     7.2    -      -       -      -
    240C  VAL*     4.3     2.7    -      -       +      +
    321C  THR      3.2     9.6    +      -       -      +
    322C  THR*     3.1    15.8    +      -       +      +
    324C  PHE*     1.3    78.6    -      -       -      +
    326C  ILE*     1.3    60.9    +      -       -      +
    328C  GLN*     3.8     2.6    +      -       -      +
    329C  LEU*     3.2    34.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 326 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322C  THR*     2.9    16.8    +      -       +      +
    323C  GLU*     2.8    34.1    -      -       -      +
    325C  LYS*     1.3    76.9    -      -       -      +
    327C  TYR*     1.3    66.4    +      -       -      +
    329C  LEU*     3.1    12.0    +      -       +      +
    330C  GLN*     2.9    21.0    +      -       -      +
     10D  ARG*     4.2    30.9    +      -       +      +
     14D  LEU*     3.2    35.0    -      -       +      +
     15D  TRP*     3.7    31.4    -      -       +      +
     18D  HIS*     5.2     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 327 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55C  ASN*     3.2    14.7    +      -       -      -
    258C  THR      5.4     2.0    -      -       -      -
    260C  ARG*     3.4    28.3    -      -       +      -
    323C  GLU      3.1    12.0    +      -       -      +
    324C  PHE*     2.8    15.2    +      +       -      +
    326C  ILE*     1.3    77.1    -      -       -      +
    328C  GLN*     1.3    93.0    +      -       -      +
    330C  GLN*     3.0    10.2    +      -       -      +
    331C  VAL*     2.9    44.2    +      -       +      +
    406C  PRO*     2.9    28.4    +      -       -      +
    409C  THR*     3.5     8.3    -      -       +      -
    410C  SER*     3.0    35.9    +      -       -      -
     15D  TRP*     4.8     6.1    -      +       -      -
     18D  HIS*     3.4    26.5    -      +       +      +
----------------------------------------------------------
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Residues in contact with GLN 328 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234C  GLY      3.9     6.1    -      -       -      -
    235C  LEU*     3.0    49.2    -      -       +      +
    238C  ALA*     3.5    23.1    -      -       +      -
    240C  VAL*     4.0     5.8    -      -       +      +
    258C  THR*     3.7    15.3    +      -       -      +
    324C  PHE*     2.9    37.4    +      -       -      +
    325C  LYS      4.0     1.3    -      -       -      +
    327C  TYR*     1.3   100.5    +      -       -      +
    329C  LEU*     1.3    62.3    +      -       -      +
    331C  VAL*     3.2    14.3    -      -       -      +
    332C  LEU*     3.1    25.3    +      -       -      +
    406C  PRO*     5.3     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 329 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    240C  VAL*     3.8    23.3    -      -       +      -
    325C  LYS*     3.2    28.3    +      -       +      +
    326C  ILE*     3.1    15.8    +      -       +      +
    328C  GLN*     1.3    74.4    -      -       -      +
    330C  GLN*     1.3    66.3    +      -       -      +
    332C  LEU*     3.2    10.9    +      -       +      +
    333C  ALA*     3.0    22.4    +      -       -      +
    336C  ARG*     4.7     6.7    +      -       -      +
     10D  ARG*     5.9     4.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 330 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    326C  ILE      2.9    11.4    +      -       -      +
    327C  TYR      3.4     8.5    -      -       -      +
    329C  LEU*     1.3    76.2    -      -       -      +
    331C  VAL*     1.3    54.5    +      -       -      +
    333C  ALA*     3.2     5.1    +      -       -      +
    334C  ASN*     2.6    79.2    +      -       -      +
    409C  THR*     3.7     4.0    -      -       +      -
    414C  LEU*     3.3    22.8    -      -       +      +
    415C  GLU*     3.2    26.9    +      -       -      +
     10D  ARG*     3.7    20.4    +      -       -      +
     11D  ASP*     5.3     0.5    -      -       -      +
     15D  TRP*     3.6    28.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 331 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235C  LEU*     4.6     2.2    -      -       +      -
    327C  TYR*     2.9    57.4    +      -       +      +
    328C  GLN*     3.2    22.4    -      -       -      +
    329C  LEU      3.2     0.2    -      -       -      -
    330C  GLN*     1.3    75.4    -      -       -      +
    332C  LEU*     1.3    63.0    +      -       -      +
    334C  ASN*     3.5     0.9    +      -       -      +
    335C  CYS*     3.2    10.9    +      -       -      +
    357C  HIS*     4.0    11.0    -      -       +      -
    405C  THR*     2.8    32.8    +      -       -      +
    406C  PRO*     3.9    23.8    -      -       +      -
    409C  THR*     3.5    12.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 332 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235C  LEU*     4.3    13.0    -      -       +      -
    240C  VAL*     3.4    43.7    -      -       +      +
    241C  VAL*     4.4     3.1    -      -       +      -
    328C  GLN      3.1     9.7    +      -       -      +
    329C  LEU*     3.5    13.2    -      -       +      +
    331C  VAL*     1.3    78.1    -      -       -      +
    333C  ALA*     1.3    67.2    +      -       -      +
    335C  CYS*     2.8    20.3    +      -       -      +
    336C  ARG*     3.3    23.9    +      -       -      +
    355C  ASP      3.8     8.1    -      -       -      +
    356C  ASN*     3.2    42.2    -      -       -      +
    357C  HIS*     4.1     0.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 333 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    329C  LEU      3.0    13.8    +      -       -      +
    330C  GLN*     3.5    14.6    -      -       -      +
    332C  LEU*     1.3    76.0    -      -       -      +
    334C  ASN*     1.3    63.2    +      -       -      +
    336C  ARG*     3.1    40.5    +      -       -      +
    337C  ALA*     3.1    12.7    +      -       -      +
    415C  GLU*     3.9    22.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 334 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    330C  GLN*     2.6    44.2    +      -       -      +
    331C  VAL      3.7     4.9    -      -       -      +
    333C  ALA*     1.3    72.1    -      -       -      +
    335C  CYS*     1.3    63.1    +      -       -      +
    337C  ALA*     3.4     7.7    -      -       -      +
    338C  LEU*     3.1    23.2    +      -       -      +
    405C  THR*     4.1     3.1    -      -       -      -
    409C  THR*     2.9    28.5    +      -       -      +
    413C  LEU      3.1    19.8    +      -       -      -
    414C  LEU      3.3    16.6    -      -       -      -
    415C  GLU*     3.3     1.6    +      -       -      -
    418C  PHE*     3.2    30.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 335 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331C  VAL      3.2     8.0    +      -       -      +
    332C  LEU      2.8    12.9    +      -       -      +
    334C  ASN*     1.3    76.4    -      -       -      +
    336C  ARG*     1.3    67.9    +      -       +      +
    338C  LEU*     3.0     6.1    +      -       -      +
    339C  SER*     2.8    22.4    +      -       -      -
    354C  SER*     3.6    12.6    -      -       -      -
    356C  ASN      3.5    24.0    -      -       -      +
    357C  HIS*     3.8    13.9    -      -       -      -
    358C  LEU*     4.1     0.4    -      -       -      -
    359C  ILE*     3.6    31.3    -      -       -      +
    405C  THR*     3.8    16.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 336 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    329C  LEU*     4.7     6.7    +      -       -      +
    332C  LEU*     3.9    20.8    +      -       -      +
    333C  ALA*     3.1    38.0    +      -       -      +
    335C  CYS*     1.3    75.7    -      -       +      +
    337C  ALA*     1.3    66.0    +      -       -      +
    339C  SER*     2.9     7.4    +      -       -      -
    340C  ASP*     2.5    38.5    +      -       -      +
    354C  SER*     5.4     8.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 337 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    333C  ALA      3.1     8.9    +      -       -      +
    334C  ASN      3.4    11.0    -      -       -      +
    336C  ARG*     1.3    78.6    -      -       -      +
    338C  LEU*     1.3    56.1    +      -       -      +
    340C  ASP*     3.7     5.8    -      -       -      +
    341C  ALA*     3.0    31.9    +      -       -      +
    415C  GLU*     3.9    39.5    -      -       +      +
    418C  PHE*     4.5     2.9    -      -       +      -
    419C  GLN*     4.7     8.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 338 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50C  LEU*     4.5    12.1    -      -       +      -
    334C  ASN      3.1     9.1    +      -       -      +
    335C  CYS*     3.0     9.3    +      -       -      +
    337C  ALA*     1.3    77.4    -      -       -      +
    339C  SER*     1.3    60.7    +      -       -      +
    341C  ALA*     4.2     1.7    -      -       -      +
    342C  LEU*     3.0    50.6    +      -       +      +
    359C  ILE*     4.3     6.5    -      -       +      -
    403C  LEU*     4.4    21.1    -      -       +      -
    405C  THR*     4.5     9.2    -      -       +      -
    418C  PHE*     3.8    38.6    -      -       +      +
    421C  VAL*     4.9     1.8    -      -       +      -
    422C  ALA*     3.8    26.0    -      -       +      +
    425C  ILE*     4.5     6.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 339 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    335C  CYS*     2.8    13.4    +      -       -      -
    336C  ARG*     3.5     9.9    -      -       -      -
    338C  LEU*     1.3    74.3    -      -       -      +
    340C  ASP*     1.3    61.1    +      -       -      +
    342C  LEU*     3.8     2.6    -      -       -      +
    343C  THR*     2.6    37.6    +      -       -      -
    349C  ILE*     3.7    25.1    -      -       -      +
    352C  GLY      4.2     1.9    +      -       -      -
    353C  GLY*     3.8    13.7    -      -       -      -
    354C  SER*     5.2     2.2    -      -       -      -
    359C  ILE*     4.0    24.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 340 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    336C  ARG*     2.5    43.2    +      -       -      +
    337C  ALA*     3.7     6.3    -      -       -      +
    339C  SER*     1.3    73.4    -      -       -      +
    341C  ALA*     1.3    55.3    +      -       -      +
    342C  LEU      3.0     1.1    -      -       -      -
    343C  THR*     3.0     5.9    +      -       -      -
    344C  GLU*     2.6    38.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 341 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    337C  ALA      3.0    17.7    +      -       -      +
    338C  LEU      4.2     0.7    -      -       -      +
    340C  ASP*     1.3    75.7    -      -       -      +
    342C  LEU*     1.3    58.2    +      -       -      +
    344C  GLU*     3.5    16.9    -      -       -      +
    345C  LEU*     3.0    32.8    +      -       +      +
    419C  GLN*     4.4    22.9    -      -       +      +
    422C  ALA*     3.7    22.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 342 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    338C  LEU*     3.0    31.0    +      -       +      +
    339C  SER*     3.8     4.7    -      -       -      +
    340C  ASP      3.0     0.8    -      -       -      -
    341C  ALA*     1.3    75.0    -      -       -      +
    343C  THR*     1.3    65.2    +      -       -      +
    345C  LEU*     3.3    12.9    +      -       +      -
    346C  GLY      3.4     0.5    +      -       -      -
    347C  TYR*     3.1    36.7    +      -       +      +
    349C  ILE*     4.6     6.5    -      -       +      -
    359C  ILE*     3.9    20.6    -      -       +      -
    361C  MSE      4.1    20.6    -      -       +      -
    403C  LEU*     3.9    14.8    -      -       +      -
    422C  ALA*     3.5    41.1    -      -       +      +
    425C  ILE*     4.9     7.9    -      -       +      -
    426C  HIS      5.5     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 343 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    339C  SER*     2.6    24.9    +      -       -      -
    340C  ASP*     3.0     7.4    +      -       -      -
    342C  LEU*     1.3    72.1    -      -       -      +
    344C  GLU*     1.3    59.3    +      -       -      +
    346C  GLY*     2.6    28.6    +      -       -      -
    347C  TYR      3.6    14.7    +      -       -      +
    349C  ILE*     3.7    16.0    -      -       -      +
    352C  GLY      4.3     6.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 344 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    340C  ASP      2.6    20.9    +      -       -      +
    341C  ALA*     3.5    17.6    -      -       -      +
    343C  THR*     1.3    74.2    -      -       -      +
    345C  LEU*     1.3    60.1    +      -       +      +
    346C  GLY*     2.9     6.2    +      -       -      -
    419C  GLN*     5.7     1.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 345 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    341C  ALA*     3.0    21.8    +      -       +      +
    342C  LEU*     3.6    11.7    -      -       +      +
    343C  THR      3.2     0.8    -      -       -      -
    344C  GLU*     1.3    77.0    -      -       +      +
    346C  GLY*     1.3    59.0    +      -       -      +
    347C  TYR*     3.9    16.4    -      -       +      -
    422C  ALA*     4.1    16.4    -      -       +      +
    423C  HIS*     4.5    10.5    -      -       +      +
    426C  HIS*     3.3    56.7    +      -       +      +
----------------------------------------------------------
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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