Contacts of the helix formed by residues 319 - 342 (chain C) in PDB entry 1KYO


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 LYS 319 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    309C  ASP*     4.5     4.9    +      -       -      -
    311C  SER*     3.2    37.5    +      -       -      -
    313C  VAL*     3.6    19.1    -      -       +      -
    315C  GLY      2.8    34.1    -      -       -      +
    316C  ASN*     3.1     9.1    +      -       -      +
    318C  PHE*     1.3    79.8    -      -       -      +
    320C  VAL*     1.3    62.2    +      -       -      +
    322C  SER*     3.4    21.0    +      -       -      +
    323C  LYS*     3.2    30.0    +      -       -      +
    371C  SER*     4.9     4.8    -      -       -      +
    374C  GLU*     3.3    31.3    +      -       +      +
    378C  PHE*     4.5    12.8    -      -       +      -
     32G  PHE*     4.4     2.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 320 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319C  LYS*     1.3    68.9    -      -       -      +
    321C  LEU*     1.3    77.0    +      -       +      +
    322C  SER      3.1     2.0    +      -       -      -
    323C  LYS*     3.2    15.0    +      -       -      +
    324C  PHE*     3.2    11.1    +      -       +      +
    374C  GLU*     3.4     3.4    +      -       -      -
     32G  PHE*     3.7    27.9    -      -       +      +
     35G  LEU*     3.9    42.2    -      -       +      +
     36G  ALA*     4.2     4.5    -      -       -      +
     58H  TYR*     3.3    37.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 321 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320C  VAL*     1.3    91.3    -      -       +      +
    322C  SER*     1.3    62.4    +      -       -      +
    324C  PHE*     3.5     5.9    +      -       -      +
    325C  PHE*     3.0    37.0    +      -       +      -
    370C  ILE*     3.6    28.7    -      -       +      -
    373C  ILE*     4.2    25.6    -      -       +      -
    374C  GLU*     3.2    18.1    +      -       +      +
    377C  LEU*     4.5     9.2    -      -       +      -
     32G  PHE*     4.3     7.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 322 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    316C  ASN*     3.3    22.8    +      -       -      -
    319C  LYS*     3.4    23.8    +      -       -      +
    320C  VAL      3.1     0.4    -      -       -      -
    321C  LEU*     1.3    78.1    -      -       -      +
    323C  LYS*     1.3    53.4    +      -       -      +
    325C  PHE*     3.2     3.2    +      -       -      +
    326C  PHE*     2.7    38.0    +      -       -      +
    362C  TYR*     4.9     1.7    +      -       -      -
    370C  ILE*     4.1     8.4    -      -       -      +
    371C  SER*     5.5     0.9    +      -       -      -
    374C  GLU*     2.6    28.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 323 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102C  TYR*     3.3    31.6    -      -       +      +
    316C  ASN*     3.3    13.4    -      -       +      +
    317C  THR*     3.1    26.6    +      -       -      +
    318C  PHE*     5.2     0.8    -      -       -      +
    319C  LYS      3.2    15.1    +      -       -      +
    320C  VAL*     3.2     7.9    +      -       -      +
    322C  SER*     1.3    77.8    -      -       -      +
    324C  PHE*     1.3    57.6    +      -       -      +
    326C  PHE*     3.3     6.5    +      -       -      +
    327C  PHE*     2.9    39.9    +      -       +      -
     35G  LEU      5.6     3.2    +      -       -      -
     36G  ALA      5.0     4.4    +      -       -      -
     55H  GLN*     2.7    39.9    +      -       -      +
     58H  TYR*     3.8    28.5    +      -       +      -
----------------------------------------------------------
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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
----------------------------------------------------------
    320C  VAL*     3.2     9.4    +      -       +      +
    321C  LEU*     3.6     9.6    -      -       -      +
    322C  SER      3.2     0.4    -      -       -      -
    323C  LYS*     1.3    78.1    -      -       -      +
    325C  PHE*     1.3    86.4    +      +       -      +
    327C  PHE*     3.0     7.8    +      -       -      +
    328C  ILE*     3.0    49.5    +      -       +      +
     57H  LEU      5.2     0.2    -      -       -      -
     58H  TYR*     3.9    22.2    -      +       +      -
     61H  ILE*     3.6    37.0    -      -       +      -
     62H  PRO*     3.9    16.1    -      -       +      +
     65H  ILE*     4.5     7.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 325 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    321C  LEU*     3.0    34.4    +      -       +      +
    322C  SER*     3.9     3.4    -      -       -      +
    324C  PHE*     1.3    95.8    -      +       -      +
    326C  PHE*     1.3    66.1    +      -       -      +
    328C  ILE*     3.1    18.8    +      -       +      +
    329C  PHE      3.0    18.0    +      -       -      -
    362C  TYR*     3.5    12.9    -      -       +      -
    366C  ILE*     3.8    45.3    -      -       +      -
    370C  ILE*     4.1    28.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 326 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98C  ALA*     4.1    14.4    -      -       +      -
    101C  LEU*     4.0    18.4    -      -       +      -
    102C  TYR*     3.7    46.7    -      +       +      -
    316C  ASN*     4.0    17.0    -      -       -      +
    322C  SER      2.7    21.8    +      -       -      +
    323C  LYS*     3.3     4.3    -      -       -      +
    325C  PHE*     1.3    71.6    -      -       -      +
    327C  PHE*     1.3    92.1    +      +       -      +
    329C  PHE*     3.0     9.2    +      +       -      +
    330C  VAL*     3.0    48.4    +      -       +      +
    362C  TYR*     3.6    24.1    -      +       -      +
----------------------------------------------------------
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Residues in contact with PHE 327 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102C  TYR*     4.5    13.5    -      +       -      -
    323C  LYS*     2.9    30.3    +      -       +      -
    324C  PHE      3.5     4.9    -      -       -      +
    326C  PHE*     1.3    99.9    -      +       -      +
    328C  ILE*     1.3    63.2    +      -       -      +
    329C  PHE      3.1     1.6    -      -       -      -
    330C  VAL*     3.9    10.5    -      -       +      +
    331C  PHE*     3.1    51.2    +      +       -      +
     55H  GLN*     5.6     4.7    -      -       -      -
     58H  TYR*     3.2    32.3    -      -       +      +
     59H  VAL*     3.8    28.0    -      -       +      -
     62H  PRO*     3.8     7.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 328 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    324C  PHE*     3.0    44.8    +      -       +      +
    325C  PHE*     3.3    26.0    -      -       +      +
    327C  PHE*     1.3    77.1    -      -       -      +
    329C  PHE*     1.3    59.5    +      -       -      +
    332C  ASN*     3.0    29.3    +      -       -      +
    358C  ILE*     4.4    15.0    -      -       +      -
    362C  TYR*     6.2     0.7    -      -       +      -
    366C  ILE*     5.5     4.3    -      -       +      -
     62H  PRO*     4.0    22.0    -      -       +      -
     65H  ILE*     4.5    11.0    -      -       +      -
     66H  TYR*     3.7    28.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 329 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101C  LEU*     4.0    24.0    -      -       +      -
    302C  LEU*     5.9     0.4    -      -       +      -
    325C  PHE      3.0    11.1    +      -       -      +
    326C  PHE*     3.0    12.8    +      +       -      +
    328C  ILE*     1.3    77.1    -      -       -      +
    330C  VAL*     1.3    76.9    +      -       +      +
    332C  ASN*     3.3     7.6    +      -       -      +
    333C  PHE*     3.0    29.2    +      +       +      +
    358C  ILE*     5.5     2.2    -      -       +      -
    359C  TYR*     3.7    37.7    -      +       -      -
    362C  TYR*     3.5    40.8    -      +       +      -
    363C  PHE*     3.6    37.2    -      +       -      -
----------------------------------------------------------
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Residues in contact with VAL 330 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98C  ALA*     5.5     7.2    -      -       +      -
    326C  PHE*     3.0    48.1    +      -       +      +
    327C  PHE*     4.1    12.8    -      -       +      +
    328C  ILE      3.5     0.2    -      -       -      -
    329C  PHE*     1.3    83.3    -      -       +      +
    331C  PHE*     1.3    74.5    +      -       +      +
    333C  PHE*     3.0    22.8    +      -       +      +
    334C  VAL*     3.1    15.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 331 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    327C  PHE*     3.1    44.7    +      +       -      +
    330C  VAL*     1.3    81.6    -      -       +      +
    332C  ASN*     1.3    55.6    +      -       -      +
    334C  VAL*     2.8    20.3    +      -       +      +
    335C  LEU*     2.7    36.2    +      -       -      +
     59H  VAL*     3.9    26.9    -      -       +      -
     62H  PRO*     4.1     1.8    -      -       +      -
     63H  ALA*     3.8    35.2    -      -       +      -
     66H  TYR*     4.0    25.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 332 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    328C  ILE      3.0    22.4    +      -       -      +
    329C  PHE*     3.4     6.5    -      -       -      +
    330C  VAL      3.3     0.2    -      -       -      -
    331C  PHE*     1.3    76.8    -      -       -      +
    333C  PHE*     1.3    57.1    +      -       -      +
    335C  LEU*     3.7     1.3    -      -       -      +
    336C  LEU*     2.9    30.5    +      -       -      +
    355C  ALA*     3.1    47.7    +      -       -      +
    358C  ILE*     3.4    19.7    -      -       +      +
    359C  TYR*     3.4    13.5    +      -       -      +
     66H  TYR*     3.0    35.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 333 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94C  PHE*     4.1    39.0    -      +       +      -
    277C  PRO*     3.5    37.3    -      -       +      +
    278C  PHE*     4.3    21.3    -      +       -      -
    281C  ILE*     6.5     0.2    -      -       +      -
    329C  PHE*     3.0    20.4    +      +       +      +
    330C  VAL*     3.0    16.8    +      -       +      +
    332C  ASN*     1.3    77.4    +      -       -      +
    334C  VAL*     1.3    65.9    +      -       +      +
    336C  LEU*     3.1    11.4    +      -       +      +
    337C  GLY      3.1    16.5    +      -       -      -
    359C  TYR*     4.0    28.0    -      +       +      -
----------------------------------------------------------
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Residues in contact with VAL 334 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277C  PRO*     5.9     0.4    -      -       -      -
    330C  VAL*     3.1    19.8    +      -       +      +
    331C  PHE*     2.8    22.9    +      -       +      +
    333C  PHE*     1.3    83.3    -      -       +      +
    335C  LEU*     1.3    56.8    +      -       -      +
    337C  GLY*     3.0     3.6    +      -       -      +
    338C  GLN*     2.8    29.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 335 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331C  PHE      2.7    17.8    +      -       -      +
    332C  ASN      3.8     2.7    -      -       -      +
    334C  VAL*     1.3    74.6    -      -       -      +
    336C  LEU*     1.3    57.6    +      -       -      +
    338C  GLN*     3.3     7.5    +      -       +      -
    339C  ILE*     2.9    56.5    +      -       +      +
    351C  MET*     4.2    11.2    -      -       +      +
    355C  ALA*     3.8    27.4    -      -       +      -
     66H  TYR*     3.8    26.2    -      -       +      +
     69H  TRP*     4.4    17.3    -      -       +      -
     70H  TRP*     3.9    29.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 336 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277C  PRO*     3.9    20.4    -      -       +      +
    280C  ALA*     3.0    32.9    -      -       +      +
    281C  ILE*     4.0    24.0    -      -       +      -
    332C  ASN*     2.9    15.3    +      -       -      +
    333C  PHE*     3.1    15.9    -      -       +      +
    335C  LEU*     1.3    78.7    -      -       -      +
    337C  GLY*     1.3    58.7    +      -       -      +
    339C  ILE*     3.2     4.9    +      -       +      +
    340C  GLY      3.1     7.1    +      -       -      -
    352C  GLY*     3.9    17.0    -      -       -      +
    355C  ALA*     3.4    36.8    -      -       +      +
    356C  THR*     4.0     7.6    -      -       -      +
    359C  TYR*     4.3    18.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 337 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    276C  LEU*     3.8    16.6    -      -       -      +
    277C  PRO*     3.7    29.8    -      -       -      +
    333C  PHE      3.1     6.8    +      -       -      -
    334C  VAL*     3.0     6.9    +      -       -      -
    336C  LEU*     1.3    74.3    -      -       -      +
    338C  GLN*     1.3    65.7    +      -       -      +
    340C  GLY      3.3     8.1    +      -       -      -
    341C  ALA*     3.3     9.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 338 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    334C  VAL*     2.8    16.8    +      -       +      +
    335C  LEU*     3.3    15.5    +      -       +      +
    337C  GLY*     1.3    77.2    -      -       -      +
    339C  ILE*     1.3    57.6    +      -       -      +
    341C  ALA*     3.2    21.7    +      -       -      +
    342C  CYS*     2.9    24.1    -      -       -      -
     70H  TRP*     3.5    49.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 339 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    280C  ALA*     4.5     7.2    -      -       +      +
    283C  ARG*     3.2    13.8    +      -       -      +
    284C  SER*     5.5     1.6    -      -       -      +
    335C  LEU*     2.9    51.6    +      -       +      +
    336C  LEU*     3.3    10.3    -      -       -      +
    337C  GLY      3.1     0.2    -      -       -      -
    338C  GLN*     1.3    72.1    -      -       -      +
    340C  GLY*     1.3    66.3    +      -       -      +
    341C  ALA      3.0     1.6    -      -       -      -
    342C  CYS*     3.0    19.2    +      -       -      +
    343C  HIS      5.0     0.3    -      -       -      +
    348C  TYR*     3.9    24.5    -      -       +      +
    349C  VAL*     6.0     0.2    -      -       -      -
    351C  MET*     4.0    25.8    -      -       +      -
    352C  GLY*     4.0    17.5    -      -       -      -
     70H  TRP*     4.0    15.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 340 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270C  VAL*     4.8     2.6    -      -       -      +
    276C  LEU*     3.7    12.5    -      -       -      +
    279C  TYR*     3.3    32.2    -      -       -      -
    280C  ALA*     3.7    18.1    -      -       -      +
    283C  ARG*     3.4    12.5    +      -       -      -
    336C  LEU      3.1     8.5    +      -       -      -
    337C  GLY      3.3     4.4    +      -       -      -
    339C  ILE*     1.3    79.6    -      -       -      +
    341C  ALA*     1.3    58.7    +      -       -      +
    342C  CYS      3.7     0.7    -      -       -      +
----------------------------------------------------------
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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
----------------------------------------------------------
    270C  VAL*     4.8    16.2    -      -       +      +
    276C  LEU*     4.0    17.5    -      -       +      +
    337C  GLY      3.3     9.3    +      -       -      +
    338C  GLN*     3.2    24.0    +      -       -      +
    339C  ILE      3.0     0.4    -      -       -      -
    340C  GLY*     1.3    76.8    -      -       -      +
    342C  CYS*     1.3    60.7    +      -       -      +
    343C  HIS*     5.4     1.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 342 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    283C  ARG*     2.6    32.8    +      -       -      -
    338C  GLN*     2.9    26.0    -      -       -      -
    339C  ILE*     3.0    10.9    +      -       -      +
    340C  GLY      3.7     0.9    -      -       -      +
    341C  ALA*     1.3    78.6    -      -       -      +
    343C  HIS*     1.3    62.7    +      -       +      +
    348C  TYR*     3.7    25.8    -      -       +      -
     70H  TRP*     3.2    32.8    -      -       -      -
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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
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  Atomic class           I  II  III   IV   V   VI  VII  VIII
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   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
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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