Contacts of the helix formed by residues 259 - 282 (chain O) in PDB entry 5LN3


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 PRO 259 (chain O).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    256O  GLY      5.1     1.6    -      -       -      +
    258O  GLN*     1.4    86.9    -      -       +      +
    260O  ASP*     1.4    66.3    +      -       -      +
    261O  LEU      3.2     2.5    -      -       -      +
    262O  ALA*     3.3    29.3    +      -       +      +
    263O  ALA*     3.9     4.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 260 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206O  LEU*     3.9    13.1    -      -       +      +
    258O  GLN*     3.2    39.3    -      -       -      +
    259O  PRO*     1.4    82.4    -      -       -      +
    261O  LEU*     1.4    55.9    +      -       -      +
    262O  ALA      3.5     0.7    +      -       -      -
    263O  ALA*     3.9    10.4    +      -       -      +
    264O  ASN*     2.9    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 261 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202O  LEU*     6.1     6.7    -      -       +      -
    205O  LEU*     3.8    33.6    -      -       +      +
    206O  LEU*     3.9    15.0    -      -       +      -
    248O  PHE*     5.6     3.1    -      -       +      -
    249O  GLN*     5.8     1.8    -      -       -      +
    254O  ALA      5.0     1.6    -      -       -      +
    255O  TRP*     4.1    43.7    -      -       +      +
    257O  GLN*     5.6     3.4    -      -       -      +
    258O  GLN*     3.5    38.1    -      -       +      +
    259O  PRO*     4.8     1.3    -      -       +      -
    260O  ASP*     1.4    81.2    -      -       -      +
    262O  ALA*     1.3    50.8    +      -       -      +
    264O  ASN*     3.0    17.1    +      -       -      +
    265O  GLU*     2.9    36.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 262 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259O  PRO*     3.3    25.6    +      -       +      +
    261O  LEU*     1.3    74.8    -      -       -      +
    263O  ALA*     1.3    59.9    +      -       -      +
    265O  GLU*     3.1    19.5    -      -       -      +
    266O  ALA*     3.1    25.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 263 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259O  PRO      3.9     3.6    +      -       -      +
    260O  ASP      3.9     9.3    +      -       -      +
    261O  LEU      3.4     0.6    -      -       -      -
    262O  ALA*     1.3    77.5    -      -       -      +
    264O  ASN*     1.3    61.8    +      -       -      +
    266O  ALA*     3.2    19.5    +      -       -      +
    267O  GLN*     3.5    12.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 264 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205O  LEU      3.3    24.6    -      -       -      +
    206O  LEU*     3.1    24.3    +      -       -      +
    207O  GLY      4.3     3.0    +      -       -      -
    208O  GLU*     3.7    18.1    +      -       -      +
    260O  ASP      2.9    24.9    -      -       -      +
    261O  LEU*     3.0    11.1    +      -       -      +
    263O  ALA*     1.3    75.0    -      -       -      +
    265O  GLU*     1.3    58.8    +      -       -      +
    267O  GLN*     3.4    13.4    +      -       -      +
    268O  LEU*     3.0    35.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 265 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205O  LEU*     4.8    11.8    -      -       +      +
    239O  ALA*     5.3     3.3    -      -       -      +
    240O  PHE*     5.2     7.3    -      -       +      -
    245O  VAL*     4.5    25.0    -      -       +      +
    248O  PHE*     3.8    28.0    -      -       -      +
    249O  GLN*     4.5    12.2    +      -       -      -
    261O  LEU*     2.9    14.0    +      -       -      +
    262O  ALA*     3.1    28.4    +      -       -      +
    264O  ASN*     1.3    72.8    -      -       -      +
    266O  ALA*     1.3    64.9    +      -       -      +
    268O  LEU*     4.4     7.6    -      -       -      -
    269O  LEU*     3.1    43.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 266 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262O  ALA      3.1    11.3    +      -       -      +
    263O  ALA*     3.2    12.0    +      -       -      +
    265O  GLU*     1.3    78.0    -      -       -      +
    267O  GLN*     1.4    63.7    +      -       +      +
    269O  LEU*     4.0     5.4    -      -       -      +
    270O  ARG*     3.4    20.1    +      -       -      +
    300O  ALA*     6.2     0.3    -      -       -      +
    302O  ILE*     6.2     4.7    -      -       +      -
    310O  LEU*     4.8    11.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 267 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208O  GLU*     3.3    38.5    +      -       -      +
    263O  ALA      3.9    11.6    -      -       -      +
    264O  ASN*     3.4    12.1    +      -       -      +
    266O  ALA*     1.4    79.5    -      -       +      +
    268O  LEU*     1.4    63.3    -      -       -      +
    270O  ARG*     3.2    38.6    +      -       -      +
    271O  LYS*     3.2    18.4    +      -       -      +
    310O  LEU*     4.9    11.0    -      -       +      +
    313O  LYS*     5.2    12.5    -      -       +      +
    314O  ALA*     5.5     0.9    -      -       -      -
    317O  VAL*     5.4     7.4    -      -       -      +
    319O  LEU*     5.3     3.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 268 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204O  GLY      4.8     5.4    -      -       -      +
    205O  LEU*     4.2    18.8    -      -       +      +
    207O  GLY      4.6     3.6    -      -       -      +
    208O  GLU*     3.5    23.1    -      -       -      +
    211O  PHE      4.3     5.4    -      -       -      +
    212O  ASN*     3.6    14.5    -      -       -      +
    240O  PHE*     3.8    33.0    -      -       +      -
    264O  ASN*     3.0    35.4    +      -       +      +
    265O  GLU*     3.3     4.9    +      -       -      +
    267O  GLN*     1.4    73.4    -      -       -      +
    269O  LEU*     1.4    64.6    +      -       -      +
    271O  LYS*     3.2    46.6    +      -       -      +
    272O  ILE*     3.5    14.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 269 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    239O  ALA*     3.8    10.3    -      -       +      +
    240O  PHE*     3.7    43.4    -      -       +      +
    243O  GLY*     3.3    34.3    -      -       -      +
    245O  VAL*     3.4    24.2    -      -       +      -
    265O  GLU*     3.1    34.5    +      -       +      +
    266O  ALA*     4.0     6.3    -      -       -      +
    268O  LEU*     1.4    77.5    -      -       -      +
    270O  ARG*     1.4    59.6    +      -       -      +
    272O  ILE*     3.7     4.2    +      -       -      +
    273O  GLN*     3.3    34.0    +      -       -      +
    300O  ALA*     5.0     7.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 270 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    266O  ALA      3.4    11.3    +      -       -      +
    267O  GLN*     3.2    55.5    +      -       -      +
    269O  LEU*     1.4    76.2    -      -       -      +
    271O  LYS*     1.4    78.4    +      -       -      +
    273O  GLN*     3.2    14.0    +      -       -      +
    274O  LEU*     3.0    46.4    +      -       +      +
    296O  ILE*     4.3    13.9    -      -       +      +
    300O  ALA*     5.5     6.0    -      -       +      +
    307O  VAL*     6.4     1.1    -      -       +      -
    310O  LEU*     4.0    34.5    -      -       +      +
    311O  VAL*     6.0     3.1    -      -       -      +
    314O  ALA*     3.7    31.3    -      -       -      +
    319O  LEU*     3.6    30.3    -      -       -      +
    320O  VAL*     5.1     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 271 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208O  GLU*     3.9    29.4    +      -       -      +
    211O  PHE*     3.5    19.9    +      -       +      +
    212O  ASN*     3.7    25.1    -      -       -      +
    267O  GLN      3.2     5.5    +      -       -      +
    268O  LEU*     3.2    33.8    +      -       -      +
    270O  ARG*     1.4    93.2    -      -       -      +
    272O  ILE*     1.4    61.3    +      -       +      +
    274O  LEU*     3.5     8.5    +      -       -      +
    275O  LEU*     3.3    23.6    +      -       +      +
    319O  LEU*     4.6    22.8    -      -       +      +
    337O  GLN*     4.5    12.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 272 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    211O  PHE*     5.8     1.8    -      -       +      -
    212O  ASN*     3.5    31.9    -      -       -      +
    213O  PHE*     4.2    15.9    -      -       +      -
    240O  PHE*     3.9    30.3    -      -       +      +
    241O  ASN*     3.7    26.5    -      -       -      +
    268O  LEU      3.5    13.2    +      -       -      +
    269O  LEU      3.8     6.7    -      -       -      +
    270O  ARG      3.3     0.2    -      -       -      -
    271O  LYS*     1.4    80.7    -      -       +      +
    273O  GLN*     1.4    58.0    +      -       -      +
    275O  LEU*     3.2    19.1    +      -       +      +
    276O  CYS*     3.1    31.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 273 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    240O  PHE      4.8     4.2    +      -       -      +
    241O  ASN      5.1     7.0    -      -       -      +
    242O  SER      6.1     0.2    -      -       -      +
    243O  GLY*     3.9    17.0    -      -       -      -
    269O  LEU*     3.3    25.4    +      -       -      +
    270O  ARG*     3.2    11.0    +      -       -      +
    272O  ILE*     1.4    71.3    -      -       -      +
    274O  LEU*     1.3    66.3    +      -       -      +
    276O  CYS*     3.1    28.3    -      -       -      -
    277O  LEU*     3.1    14.5    -      -       +      +
    296O  ILE*     3.6    19.7    -      -       +      +
    299O  SER*     3.5    37.4    +      -       -      -
    300O  ALA*     3.4    29.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 274 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270O  ARG*     3.0    43.0    +      -       -      +
    271O  LYS*     3.6     9.9    -      -       -      +
    273O  GLN*     1.3    79.0    -      -       -      +
    275O  LEU*     1.3    61.7    +      -       -      +
    277O  LEU*     3.6     7.8    +      -       +      +
    278O  MET*     3.4    36.4    +      -       +      +
    291O  LEU*     5.4     0.5    -      -       -      +
    296O  ILE*     3.8    19.3    -      -       +      -
    311O  VAL*     5.8     6.3    -      -       +      -
    319O  LEU*     5.9     0.4    -      -       +      +
    320O  VAL*     3.9    24.5    -      -       +      -
    333O  MET*     3.6    37.5    -      -       +      +
    337O  GLN*     5.3     3.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 275 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    211O  PHE*     4.8    21.5    -      -       +      -
    212O  ASN*     6.0     0.7    -      -       -      +
    271O  LYS*     3.3    12.9    +      -       +      +
    272O  ILE*     3.2    24.0    +      -       +      +
    274O  LEU*     1.3    78.6    -      -       -      +
    276O  CYS*     1.3    65.6    +      -       +      +
    278O  MET*     3.6    10.4    +      -       -      +
    279O  GLU*     3.1    41.8    +      -       -      +
    337O  GLN*     3.8    32.5    -      -       +      +
    338O  PRO*     5.8     0.4    -      -       +      -
    339O  ARG*     3.6    24.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 276 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241O  ASN      6.0     1.6    -      -       -      -
    272O  ILE*     3.1    13.6    +      -       +      +
    273O  GLN*     3.1    34.3    -      -       -      -
    275O  LEU*     1.3    79.2    -      -       +      +
    277O  LEU*     1.4    73.0    +      -       -      +
    279O  GLU*     3.0    12.2    +      -       -      +
    280O  MET*     3.0    29.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 277 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    273O  GLN*     3.1    21.3    -      -       +      +
    274O  LEU*     3.7    11.4    -      -       +      +
    275O  LEU      3.3     0.2    -      -       -      -
    276O  CYS*     1.4    82.6    -      -       -      +
    278O  MET*     1.4    63.0    +      -       -      +
    280O  MET*     3.1    49.5    +      -       +      +
    281O  THR*     3.4     9.2    +      -       -      -
    291O  LEU*     3.5    28.2    -      -       +      +
    295O  GLU*     3.5    25.6    -      -       +      +
    296O  ILE*     5.1    15.0    -      -       +      -
    333O  MET*     5.4     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 278 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    274O  LEU*     3.4    28.2    +      -       +      +
    275O  LEU*     3.7     3.4    -      -       -      +
    277O  LEU*     1.4    76.8    -      -       +      +
    279O  GLU*     1.3    54.6    +      -       -      +
    281O  THR*     3.4     7.7    +      -       -      -
    282O  PHE*     3.0    30.0    +      -       -      +
    289O  ARG*     3.8    38.4    +      -       -      +
    291O  LEU*     5.1     4.9    -      -       +      -
    333O  MET*     4.2    22.9    -      -       +      -
    334O  THR      4.8     1.3    -      -       -      +
    335O  TRP*     4.0    17.7    -      -       +      -
    337O  GLN*     3.5    39.7    -      -       +      +
    339O  ARG*     3.1    18.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 279 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275O  LEU*     3.1    29.4    +      -       -      +
    276O  CYS*     3.0    15.3    +      -       -      +
    278O  MET*     1.3    75.5    -      -       -      +
    280O  MET*     1.4    57.8    +      -       -      +
    282O  PHE      3.2    18.9    +      -       -      +
    283O  THR*     3.5     9.4    +      -       +      +
    339O  ARG*     3.1    30.0    +      -       -      +
    345O  GLN*     3.9    25.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 280 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    276O  CYS*     3.0    17.4    +      -       -      +
    277O  LEU*     3.1    45.5    -      -       +      +
    279O  GLU*     1.4    69.4    -      -       -      +
    281O  THR*     1.3    68.7    +      -       -      +
    283O  THR*     3.2    21.6    +      -       -      +
    284O  ARG*     3.6    11.7    +      -       -      +
    288O  HIS*     5.8     1.1    -      -       +      +
    291O  LEU*     4.7    14.6    -      -       +      -
    295O  GLU*     5.3     1.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 281 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277O  LEU      3.4    11.3    +      -       -      -
    278O  MET*     3.8     2.7    +      -       -      -
    279O  GLU      3.4     0.4    -      -       -      -
    280O  MET*     1.3    79.1    -      -       -      +
    282O  PHE*     1.4    55.8    +      -       -      +
    283O  THR      3.1     5.9    +      -       -      -
    284O  ARG*     3.2    20.7    +      -       -      +
    285O  PRO      3.1    18.2    -      -       -      +
    286O  ALA*     3.9     4.7    -      -       -      -
    287O  ASN*     3.3    35.2    -      -       -      +
    288O  HIS*     3.3    44.5    +      -       +      +
    289O  ARG*     3.7    14.0    +      -       -      -
    291O  LEU*     5.5     1.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 282 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    278O  MET      3.0    17.7    +      -       -      +
    279O  GLU      3.2     8.4    +      -       -      +
    281O  THR*     1.4    74.1    -      -       -      +
    283O  THR*     1.3    54.8    +      -       -      +
    284O  ARG      3.1    18.2    -      -       -      -
    285O  PRO*     4.1     8.7    -      -       +      -
    286O  ALA      4.1     1.3    -      -       -      -
    289O  ARG*     4.1     8.1    -      -       -      +
    335O  TRP*     6.3     0.9    -      +       -      -
    339O  ARG*     3.8    20.2    -      -       -      +
    345O  GLN*     3.3    25.7    -      -       +      +
    349O  MET*     5.8     0.7    -      -       -      -
    352O  ARG*     3.9    18.6    +      -       -      -
    231U  GLN*     3.4    49.1    -      -       +      -
    234U  PHE*     3.7    22.9    -      +       +      -
    235U  ASN*     3.1    28.3    -      -       -      -
----------------------------------------------------------
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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