Contacts of the helix formed by residues 362 - 387 (chain B) in PDB entry 1CCW


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 SER 362 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259B  ILE*     4.9     0.3    -      -       -      +
    359B  MET*     5.8     0.2    -      -       -      -
    360B  PRO      3.6     3.5    +      -       -      -
    361B  MET*     1.3    74.9    -      -       -      +
    363B  LYS*     1.3    58.4    +      -       -      +
    364B  GLU      3.7     0.6    +      -       -      -
    365B  LEU*     3.5    19.6    +      -       -      +
    366B  GLU*     2.9    30.4    +      -       -      +
    360D  PRO*     3.2    33.0    -      -       -      +
    361D  MET      2.9    27.1    -      -       -      -
    362D  SER*     4.8     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 363 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    362B  SER*     1.3    74.0    -      -       -      +
    364B  GLU*     1.3    58.0    +      -       -      +
    366B  GLU*     2.8    33.4    +      -       -      +
    367B  THR*     2.8    46.0    +      -       -      +
    361D  MET      4.5     1.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 364 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    257B  ASN*     5.0     3.6    +      -       -      +
    259B  ILE*     3.3    32.8    -      -       +      +
    362B  SER*     3.2     8.5    +      -       -      +
    363B  LYS*     1.3    79.9    -      -       -      +
    365B  LEU*     1.3    54.6    +      -       -      +
    367B  THR*     3.4     6.2    +      -       -      -
    368B  GLU*     3.0    28.5    +      -       +      +
    425B  LEU*     5.7     7.8    -      -       -      +
    358D  ARG      4.7     6.8    -      -       -      +
    360D  PRO*     4.0    20.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 365 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259B  ILE*     3.9    22.6    -      -       +      +
    262B  ILE*     4.1     7.6    -      -       +      -
    263B  ALA*     3.7    37.5    -      -       +      +
    266B  ARG*     3.9    25.1    -      -       -      +
    359B  MET*     4.4     9.0    -      -       +      -
    360B  PRO      4.1    15.7    -      -       -      +
    361B  MET*     4.2    12.8    -      -       +      -
    362B  SER*     3.4    18.2    +      -       -      +
    363B  LYS      3.4     0.2    -      -       -      -
    364B  GLU*     1.3    73.0    -      -       -      +
    366B  GLU*     1.3    62.3    +      -       -      +
    368B  GLU*     3.3     0.8    +      -       -      -
    369B  MET*     2.9    48.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 366 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    361B  MET*     6.1     3.1    -      -       +      +
    362B  SER      2.9    18.0    +      -       -      +
    363B  LYS*     2.8    44.6    +      -       -      +
    365B  LEU*     1.3    79.2    -      -       -      +
    367B  THR*     1.3    58.3    +      -       -      +
    369B  MET*     3.4     8.8    +      -       -      +
    370B  ALA*     2.9    30.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 367 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    363B  LYS*     2.8    36.1    +      -       -      +
    364B  GLU*     3.6     7.6    -      -       -      +
    366B  GLU*     1.3    78.5    +      -       -      +
    368B  GLU*     1.3    63.2    +      -       -      +
    370B  ALA*     3.2     7.3    +      -       -      +
    371B  VAL*     3.1    28.6    +      -       +      +
    445B  TYR*     4.4    20.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 368 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259B  ILE*     4.5     7.9    -      -       +      -
    260B  GLN*     4.1    22.1    +      -       -      +
    263B  ALA*     3.8    20.0    -      -       +      -
    364B  GLU*     3.0    17.3    +      -       +      +
    365B  LEU      3.9     2.9    -      -       -      +
    367B  THR*     1.3    75.7    -      -       -      +
    369B  MET*     1.3    66.3    +      -       -      +
    371B  VAL*     3.3    11.9    +      -       -      +
    372B  ILE*     2.9    39.1    +      -       +      +
    427B  CYS*     4.6     3.8    -      -       -      -
    429B  ARG*     2.8    44.6    +      -       -      -
    445B  TYR*     4.6     5.9    +      -       -      -
    449B  ARG*     5.3     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 369 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    263B  ALA*     3.7    20.0    -      -       +      -
    266B  ARG*     3.8    29.2    -      -       +      -
    267B  CYS*     3.4    23.9    -      -       -      -
    270B  GLU*     3.5    29.4    -      -       -      +
    361B  MET*     6.0     3.8    -      -       -      +
    365B  LEU*     2.9    40.3    +      -       +      +
    366B  GLU*     3.7     7.6    -      -       -      +
    368B  GLU*     1.3    77.2    -      -       -      +
    370B  ALA*     1.3    63.0    +      -       -      +
    372B  ILE      3.3     0.7    +      -       -      -
    373B  LYS*     2.9    30.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 370 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    366B  GLU*     2.9    18.4    +      -       +      +
    367B  THR*     3.2     7.6    +      -       -      +
    369B  MET*     1.3    75.0    -      -       -      +
    371B  VAL*     1.3    64.0    +      -       +      +
    373B  LYS*     3.5     4.9    +      -       -      +
    374B  ALA*     2.9    26.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 371 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    367B  THR*     3.1    22.2    +      -       +      +
    368B  GLU*     3.5    21.5    -      -       -      +
    369B  MET      3.2     0.2    -      -       -      -
    370B  ALA*     1.3    77.8    -      -       +      +
    372B  ILE*     1.3    65.1    +      -       +      +
    374B  ALA*     3.7     4.2    -      -       -      +
    375B  GLU*     3.0    48.8    +      -       +      +
    429B  ARG*     4.3     4.5    -      -       -      +
    442B  ILE*     6.2     0.2    -      -       +      -
    445B  TYR*     3.7    40.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 372 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226B  PRO*     3.9    23.8    -      -       +      -
    227B  SER*     4.4     4.7    -      -       -      +
    230B  ASN*     3.9    15.5    -      -       -      +
    260B  GLN*     4.0     5.8    -      -       +      +
    263B  ALA*     3.8    12.1    -      -       +      -
    264B  ALA*     3.7    28.7    -      -       -      +
    267B  CYS*     3.8    23.8    -      -       +      -
    368B  GLU*     2.9    35.4    +      -       +      +
    371B  VAL*     1.3    77.9    -      -       +      +
    373B  LYS*     1.3    63.0    +      -       -      +
    375B  GLU*     3.4     8.7    +      -       -      +
    376B  THR*     2.8    36.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 373 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    267B  CYS*     3.6    22.4    -      -       -      +
    270B  GLU*     2.7    44.9    +      -       -      +
    271B  GLN*     3.4    38.0    +      -       +      +
    274B  GLU*     5.3     4.3    +      -       -      +
    369B  MET*     2.9    25.4    +      -       -      +
    370B  ALA*     4.0     4.7    -      -       -      +
    372B  ILE*     1.3    74.6    -      -       -      +
    374B  ALA*     1.3    58.4    +      -       -      +
    376B  THR*     3.8     0.2    -      -       -      -
    377B  LYS*     2.9    32.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 374 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    370B  ALA      2.9    18.3    +      -       -      +
    371B  VAL*     3.7     4.7    -      -       -      +
    373B  LYS*     1.3    74.7    -      -       -      +
    375B  GLU*     1.3    66.6    +      -       -      +
    377B  LYS*     3.4     8.0    +      -       -      +
    378B  CYS*     3.0    27.2    +      -       -      -
    442B  ILE*     4.1    17.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 375 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227B  SER*     2.6    40.7    +      -       -      +
    371B  VAL*     3.0    39.7    +      -       +      +
    372B  ILE*     3.8     3.9    -      -       -      +
    374B  ALA*     1.3    76.0    -      -       -      +
    376B  THR*     1.3    63.5    +      -       -      +
    378B  CYS      3.2     8.8    +      -       -      -
    379B  ILE*     3.3    11.3    +      -       -      +
    429B  ARG*     5.3     2.0    +      -       -      -
    430B  TYR*     3.6     7.5    -      -       -      -
    438B  PHE*     3.4    28.9    -      -       +      -
    442B  ILE*     3.6    24.3    -      -       +      +
    446B  ASN*     3.1    29.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 376 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227B  SER*     3.4    23.4    -      -       -      -
    230B  ASN*     4.2     4.2    -      -       +      +
    231B  ALA*     3.9    17.9    -      -       -      +
    234B  ILE*     3.8    21.8    -      -       +      -
    271B  GLN*     3.5    22.8    +      -       -      +
    372B  ILE*     2.8    26.9    +      -       -      +
    373B  LYS      3.8     0.2    -      -       -      -
    375B  GLU*     1.3    75.0    -      -       -      +
    377B  LYS*     1.3    59.4    +      -       -      +
    379B  ILE*     3.2     6.0    +      -       -      +
    380B  LEU*     2.9    36.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 377 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    271B  GLN*     4.5     7.8    -      -       -      +
    275B  TYR*     4.3    16.2    -      -       -      +
    373B  LYS      2.9    19.2    +      -       -      +
    374B  ALA*     3.8     7.4    -      -       -      +
    376B  THR*     1.3    74.4    -      -       -      +
    378B  CYS*     1.3    60.8    +      -       -      +
    381B  ASP*     2.7    70.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 378 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    374B  ALA      3.0    13.9    +      -       -      -
    375B  GLU      3.2     8.0    +      -       -      +
    377B  LYS*     1.3    76.7    -      -       -      +
    379B  ILE*     1.3    62.1    +      -       -      +
    381B  ASP*     3.8     5.9    -      -       -      +
    382B  LYS*     3.1    23.7    +      -       -      +
    437B  PRO*     3.6    27.5    -      -       -      +
    438B  PHE*     3.9    12.3    -      -       +      -
    439B  THR*     4.4    11.2    -      -       -      -
    442B  ILE*     3.4    32.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 379 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227B  SER      4.0    20.4    -      -       -      +
    228B  MET*     3.8    27.6    -      -       +      -
    231B  ALA*     3.8    17.3    -      -       +      -
    375B  GLU      3.3    14.1    +      -       -      +
    376B  THR*     3.2     6.6    +      -       -      +
    378B  CYS*     1.3    73.6    -      -       -      +
    380B  LEU*     1.3    65.2    +      -       -      +
    382B  LYS*     3.1     4.9    +      -       -      +
    383B  MET*     3.1    38.6    +      -       -      +
    403B  VAL*     4.2    16.0    -      -       +      +
    404B  MET*     4.4     5.4    -      -       +      -
    430B  TYR*     4.2     5.8    -      -       -      +
    436B  VAL*     4.1     9.2    -      -       +      -
    437B  PRO*     4.2     9.2    -      -       +      -
    438B  PHE*     4.0    18.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 380 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231B  ALA*     3.9    13.7    -      -       +      +
    234B  ILE*     3.9    21.1    -      -       +      -
    235B  THR*     3.5    25.4    -      -       -      +
    238B  LEU*     5.8     0.7    -      -       +      -
    275B  TYR*     3.6    44.6    -      -       +      +
    376B  THR*     2.9    36.7    +      -       +      +
    377B  LYS*     4.1     0.4    -      -       -      +
    379B  ILE*     1.3    71.2    -      -       -      +
    381B  ASP*     1.3    67.7    +      -       -      +
    383B  MET*     3.2    14.4    +      -       +      +
    384B  PHE*     3.0    33.4    +      -       +      -
    391B  LEU*     4.9     7.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 381 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275B  TYR*     4.1     8.1    +      -       -      -
    377B  LYS*     2.7    63.5    +      -       -      +
    378B  CYS*     3.8     6.4    +      -       -      +
    380B  LEU*     1.3    73.7    -      -       -      +
    382B  LYS*     1.3    62.5    +      -       -      +
    384B  PHE*     3.4     7.0    +      -       -      +
    385B  GLU*     3.1    36.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 382 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    378B  CYS      3.1    18.3    +      -       -      +
    379B  ILE      3.1     4.2    +      -       -      +
    381B  ASP*     1.3    76.9    -      -       -      +
    383B  MET*     1.3    58.2    +      -       -      +
    385B  GLU*     3.1    22.7    +      -       +      +
    386B  LEU*     2.8    50.5    +      -       +      +
    403B  VAL*     3.7    31.0    -      -       +      -
    437B  PRO*     3.9    18.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 383 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235B  THR*     3.4    20.0    -      -       +      +
    379B  ILE*     3.1    22.4    +      -       -      +
    380B  LEU*     3.2    19.5    +      -       -      +
    382B  LYS*     1.3    78.0    -      -       -      +
    384B  PHE*     1.3    61.8    +      -       -      +
    386B  LEU*     3.4     3.1    +      -       -      -
    387B  GLY*     3.0    18.5    +      -       -      -
    390B  ASP      4.5     0.5    -      -       -      +
    391B  LEU*     3.9    14.6    -      -       +      -
    394B  GLY*     3.2    19.2    -      -       -      +
    395B  THR*     3.3    33.4    -      -       -      +
    398B  ALA*     3.8    20.4    -      -       +      -
    403B  VAL*     4.5     3.8    -      -       +      -
    404B  MET*     3.7    32.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 384 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238B  LEU*     4.3     5.6    -      -       +      -
    275B  TYR*     4.1    20.4    -      +       -      -
    279B  TYR*     3.2    48.2    -      +       -      -
    380B  LEU*     3.0    31.4    +      -       +      -
    381B  ASP*     3.8     8.3    -      -       -      +
    383B  MET*     1.3    75.9    -      -       -      +
    385B  GLU*     1.3    62.2    +      -       +      +
    387B  GLY      3.3     0.7    +      -       -      -
    388B  LYS*     3.1     2.9    +      -       -      -
    389B  GLY*     2.8    55.1    +      -       -      +
    390B  ASP      5.2     1.6    -      -       -      -
    391B  LEU*     3.8    45.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 385 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    381B  ASP*     3.1    27.8    +      -       -      +
    382B  LYS*     3.1    29.0    +      -       +      +
    384B  PHE*     1.3    77.2    -      -       -      +
    386B  LEU*     1.3    62.4    +      -       +      +
    388B  LYS*     3.0    19.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 386 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    382B  LYS*     2.8    52.3    +      -       +      +
    383B  MET      3.8     3.6    -      -       -      +
    385B  GLU*     1.3    73.0    -      -       -      +
    387B  GLY*     1.3    60.9    +      -       -      +
    388B  LYS*     3.2    11.7    +      -       -      +
    394B  GLY*     4.3     2.2    -      -       -      +
    397B  LYS*     3.3    38.2    -      -       +      +
    398B  ALA*     3.8    24.9    -      -       +      +
    401B  THR*     3.8    29.6    -      -       +      +
    403B  VAL*     4.2     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 387 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    383B  MET      3.0    11.4    +      -       -      -
    384B  PHE      3.3     0.4    +      -       -      -
    386B  LEU*     1.3    76.8    -      -       -      +
    388B  LYS*     1.3    70.6    +      -       -      +
    389B  GLY      3.2     3.1    -      -       -      -
    390B  ASP*     3.0    36.9    +      -       -      +
    393B  ILE*     4.1    13.5    -      -       -      +
    394B  GLY*     3.6    11.8    -      -       -      -
----------------------------------------------------------
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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
------------------------------------------------------------
  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