Contacts of the helix formed by residues 362 - 387 (chain D) 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 D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    360B  PRO*     3.1    27.0    -      -       -      +
    361B  MET      3.0    24.7    -      -       -      -
    362B  SER*     4.8     0.7    -      -       -      +
    259D  ILE*     4.9     0.3    -      -       -      +
    360D  PRO      3.6     3.9    +      -       -      -
    361D  MET*     1.3    80.2    -      -       -      +
    363D  LYS*     1.3    60.7    -      -       -      +
    364D  GLU*     3.7     7.6    -      -       -      -
    365D  LEU*     3.5    18.2    +      -       -      +
    366D  GLU*     2.9    31.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 363 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    361B  MET      4.5     1.4    +      -       -      -
    362D  SER*     1.3    75.3    -      -       -      +
    364D  GLU*     1.3    73.0    +      -       +      +
    366D  GLU*     3.2    42.6    +      -       -      +
    367D  THR*     2.9    55.5    +      -       -      +
    370D  ALA*     6.2     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 364 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    360B  PRO*     3.4    32.4    -      -       +      +
    361B  MET*     4.4     5.6    +      -       -      +
    259D  ILE*     4.2    11.9    -      -       +      +
    362D  SER*     3.2     7.4    -      -       -      +
    363D  LYS*     1.3    92.4    +      -       +      +
    365D  LEU*     1.3    58.9    +      -       -      +
    367D  THR*     3.4     5.8    +      -       -      -
    368D  GLU*     3.0    23.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 365 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259D  ILE*     3.8    22.8    -      -       +      +
    262D  ILE*     4.3     7.2    -      -       +      -
    263D  ALA*     3.7    36.6    -      -       +      +
    266D  ARG*     3.9    20.2    -      -       -      +
    359D  MET*     4.4     9.4    -      -       +      -
    360D  PRO      4.1    14.4    -      -       -      +
    361D  MET*     3.7    26.7    -      -       +      -
    362D  SER*     3.5    16.6    +      -       -      +
    363D  LYS      3.3     0.2    -      -       -      -
    364D  GLU*     1.3    71.9    -      -       -      +
    366D  GLU*     1.3    67.6    +      -       -      +
    368D  GLU      3.2     0.5    +      -       -      -
    369D  MET*     2.8    37.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 366 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    361D  MET*     3.8    15.6    -      -       -      +
    362D  SER      2.9    16.5    +      -       -      +
    363D  LYS*     3.3    39.9    +      -       -      +
    365D  LEU*     1.3    77.6    -      -       -      +
    367D  THR*     1.3    55.8    +      -       -      +
    369D  MET*     3.4     6.6    +      -       -      +
    370D  ALA*     2.9    30.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 367 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    363D  LYS*     2.9    43.4    +      -       -      +
    364D  GLU*     3.6     6.7    -      -       -      -
    365D  LEU      3.2     0.2    -      -       -      -
    366D  GLU*     1.3    77.1    -      -       -      +
    368D  GLU*     1.3    62.8    +      -       -      +
    370D  ALA*     3.2     7.2    +      -       -      +
    371D  VAL*     3.0    28.4    +      -       +      +
    445D  TYR*     4.4    20.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 368 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259D  ILE*     4.5     7.8    -      -       +      +
    260D  GLN*     4.2    21.3    +      -       -      +
    263D  ALA*     3.8    19.5    -      -       +      -
    364D  GLU      3.0    16.6    +      -       -      +
    365D  LEU      3.9     2.9    -      -       -      +
    367D  THR*     1.3    75.1    -      -       -      +
    369D  MET*     1.3    65.7    +      -       -      +
    371D  VAL*     3.2    14.8    +      -       -      +
    372D  ILE*     3.0    35.2    +      -       +      +
    427D  CYS*     4.6     3.8    -      -       -      -
    429D  ARG*     2.7    46.8    +      -       -      -
    445D  TYR*     4.7     5.5    +      -       -      -
    449D  ARG*     5.3     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 369 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    263D  ALA*     3.7    18.8    -      -       +      -
    266D  ARG*     3.9    21.3    -      -       +      -
    267D  CYS*     3.4    20.9    -      -       -      +
    270D  GLU*     3.5    35.2    -      -       -      +
    361D  MET*     4.2    16.6    -      -       +      +
    365D  LEU*     2.8    36.8    +      -       +      +
    366D  GLU*     3.7     5.8    -      -       -      +
    368D  GLU*     1.3    75.0    -      -       -      +
    370D  ALA*     1.3    58.5    +      -       -      +
    372D  ILE      3.3     0.2    +      -       -      -
    373D  LYS*     2.9    41.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 370 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    363D  LYS*     6.2     0.2    -      -       -      +
    366D  GLU*     2.9    19.5    +      -       +      +
    367D  THR*     3.2     7.4    +      -       -      +
    369D  MET*     1.3    76.6    -      -       -      +
    371D  VAL*     1.3    61.8    +      -       +      +
    373D  LYS*     4.0     5.1    -      -       -      +
    374D  ALA*     3.0    26.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 371 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    367D  THR*     3.0    21.9    +      -       +      +
    368D  GLU*     3.2    24.7    +      -       -      +
    370D  ALA*     1.3    76.6    -      -       +      +
    372D  ILE*     1.3    60.2    +      -       +      +
    374D  ALA*     3.3     5.3    +      -       -      +
    375D  GLU*     2.9    53.9    +      -       +      +
    429D  ARG*     4.3     8.7    -      -       -      +
    442D  ILE*     5.9     0.2    -      -       -      +
    445D  TYR*     3.7    35.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 372 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226D  PRO*     3.9    24.9    -      -       +      -
    227D  SER*     4.0     4.4    -      -       -      +
    230D  ASN*     3.9    15.9    -      -       -      +
    260D  GLN*     4.0     6.7    -      -       +      +
    263D  ALA*     3.8    16.4    -      -       +      -
    264D  ALA*     3.7    28.7    -      -       -      +
    267D  CYS*     3.8    24.2    -      -       +      -
    368D  GLU*     3.0    29.7    +      -       +      +
    371D  VAL*     1.3    77.4    -      -       +      +
    373D  LYS*     1.3    62.5    +      -       -      +
    375D  GLU*     3.8     8.3    -      -       -      +
    376D  THR*     2.8    36.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 373 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    267D  CYS*     3.6    23.3    -      -       -      +
    270D  GLU*     2.7    45.3    +      -       -      +
    271D  GLN*     3.3    36.9    +      -       +      +
    274D  GLU*     5.3     4.1    +      -       -      +
    369D  MET*     2.9    26.7    +      -       +      +
    370D  ALA*     4.1     5.2    -      -       -      +
    372D  ILE*     1.3    76.4    -      -       -      +
    374D  ALA*     1.3    55.9    +      -       -      +
    377D  LYS*     2.9    31.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 374 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    370D  ALA      3.0    19.2    +      -       -      +
    371D  VAL*     3.7     4.7    -      -       -      +
    372D  ILE      3.2     0.2    -      -       -      -
    373D  LYS*     1.3    74.6    -      -       -      +
    375D  GLU*     1.3    66.4    +      -       -      +
    377D  LYS*     3.4     6.7    +      -       -      +
    378D  CYS*     3.0    27.4    +      -       -      -
    442D  ILE*     4.1    16.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 375 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227D  SER*     2.6    38.4    +      -       -      +
    371D  VAL*     2.9    39.5    +      -       +      +
    372D  ILE*     4.7     3.8    -      -       -      +
    374D  ALA*     1.3    75.0    -      -       -      +
    376D  THR*     1.3    64.5    +      -       -      +
    378D  CYS*     3.3    11.8    +      -       -      +
    379D  ILE*     3.3    11.8    +      -       -      +
    429D  ARG*     5.3     2.1    +      -       -      -
    430D  TYR*     3.6     8.8    -      -       -      -
    438D  PHE*     3.5    25.3    -      -       +      -
    442D  ILE*     3.6    24.7    -      -       +      +
    445D  TYR*     5.6     0.2    -      -       -      -
    446D  ASN*     3.2    26.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 376 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227D  SER*     3.4    24.2    -      -       -      -
    230D  ASN*     4.1     4.2    -      -       +      +
    231D  ALA*     4.1    15.7    -      -       -      +
    234D  ILE*     3.8    23.1    -      -       +      -
    271D  GLN*     3.6    22.5    +      -       -      +
    372D  ILE*     2.8    26.6    +      -       -      +
    373D  LYS      3.7     0.2    -      -       -      -
    375D  GLU*     1.3    75.9    -      -       -      +
    377D  LYS*     1.3    63.9    +      -       -      +
    379D  ILE*     3.1     7.2    +      -       -      +
    380D  LEU*     3.0    31.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 377 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    271D  GLN*     4.5     7.4    -      -       -      +
    275D  TYR*     4.2    17.3    +      -       -      +
    373D  LYS      2.9    18.7    +      -       -      +
    374D  ALA*     3.8     7.2    -      -       -      +
    376D  THR*     1.3    78.0    -      -       -      +
    378D  CYS*     1.3    58.6    +      -       -      +
    381D  ASP*     2.7    66.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 378 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    374D  ALA*     3.0    21.0    +      -       -      -
    375D  GLU      3.4     9.2    -      -       -      +
    376D  THR      3.2     0.2    -      -       -      -
    377D  LYS*     1.3    79.2    -      -       -      +
    379D  ILE*     1.3    61.1    +      -       +      +
    381D  ASP*     3.8     5.8    -      -       -      +
    382D  LYS*     3.2    24.1    +      -       -      +
    437D  PRO*     3.9    13.8    -      -       -      +
    438D  PHE*     4.0    21.1    -      -       +      -
    439D  THR*     4.5    12.6    -      -       -      -
    442D  ILE*     3.4    24.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 379 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227D  SER      3.9    21.5    -      -       -      +
    228D  MET*     3.8    28.3    -      -       +      -
    231D  ALA*     3.8    16.8    -      -       +      -
    375D  GLU      3.3    13.9    +      -       -      +
    376D  THR*     3.1     6.6    +      -       -      +
    378D  CYS*     1.3    73.3    -      -       -      +
    380D  LEU*     1.3    66.6    +      -       -      +
    382D  LYS*     3.3     4.0    +      -       -      +
    383D  MET*     3.0    39.1    +      -       +      +
    403D  VAL*     4.3    15.1    -      -       +      +
    404D  MET*     4.3     5.8    -      -       +      -
    430D  TYR*     4.2     3.8    -      -       -      +
    436D  VAL*     4.1    16.2    -      -       +      -
    437D  PRO*     4.2    10.3    -      -       +      -
    438D  PHE*     4.1    12.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 380 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    231D  ALA*     3.8    14.6    -      -       +      +
    234D  ILE*     3.9    21.3    -      -       +      -
    235D  THR*     3.5    26.0    -      -       -      +
    238D  LEU*     5.8     0.7    -      -       +      -
    275D  TYR*     3.5    44.4    -      -       +      +
    376D  THR*     3.0    37.6    +      -       +      +
    377D  LYS      4.1     0.4    -      -       -      +
    379D  ILE*     1.3    72.5    -      -       -      +
    381D  ASP*     1.3    63.9    +      -       -      +
    383D  MET*     3.1    13.8    +      -       -      +
    384D  PHE*     2.9    34.9    +      -       +      -
    391D  LEU*     4.9     7.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 381 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275D  TYR*     4.2     6.2    +      -       -      -
    377D  LYS*     2.7    65.2    +      -       -      +
    378D  CYS*     3.8     6.7    -      -       -      +
    380D  LEU*     1.3    72.1    -      -       -      +
    382D  LYS*     1.3    63.0    +      -       -      +
    384D  PHE*     3.3     8.5    +      -       -      +
    385D  GLU*     3.0    24.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 382 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    378D  CYS      3.2    15.8    +      -       -      +
    379D  ILE      3.7     3.6    -      -       -      +
    380D  LEU      3.2     0.2    -      -       -      -
    381D  ASP*     1.3    79.0    -      -       -      +
    383D  MET*     1.3    57.5    +      -       -      +
    385D  GLU*     3.2    36.0    +      -       -      +
    386D  LEU*     2.9    55.6    +      -       +      +
    403D  VAL*     3.8    31.4    -      -       +      -
    437D  PRO*     3.8    20.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 383 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    235D  THR*     3.4    20.0    -      -       +      +
    379D  ILE*     3.0    27.9    +      -       -      +
    380D  LEU*     3.4    18.4    -      -       -      +
    382D  LYS*     1.3    75.3    -      -       -      +
    384D  PHE*     1.3    63.4    +      -       -      +
    386D  LEU*     3.4     3.6    +      -       -      -
    387D  GLY*     3.1    18.0    +      -       -      -
    390D  ASP      4.5     0.3    -      -       -      +
    391D  LEU*     4.0    14.6    -      -       +      -
    394D  GLY*     3.2    20.8    -      -       -      +
    395D  THR*     3.3    31.2    -      -       -      +
    398D  ALA*     3.7    19.7    -      -       +      -
    403D  VAL*     4.5     2.7    -      -       +      -
    404D  MET*     3.5    36.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 384 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238D  LEU*     4.4     6.3    -      -       +      -
    275D  TYR*     4.1    20.6    -      +       -      -
    279D  TYR*     3.3    48.0    -      +       -      -
    380D  LEU*     2.9    31.4    +      -       +      -
    381D  ASP*     3.8     9.4    -      -       -      +
    383D  MET*     1.3    76.3    -      -       -      +
    385D  GLU*     1.3    64.4    +      -       -      +
    387D  GLY      3.3     0.9    +      -       -      -
    388D  LYS      3.0     3.5    +      -       -      -
    389D  GLY*     2.9    54.0    +      -       -      -
    390D  ASP      5.3     1.3    -      -       -      -
    391D  LEU*     3.8    44.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 385 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    381D  ASP      3.0    16.4    +      -       -      +
    382D  LYS*     3.2    40.2    +      -       -      +
    384D  PHE*     1.3    77.4    -      -       -      +
    386D  LEU*     1.3    64.2    +      -       +      +
    388D  LYS*     3.0    23.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 386 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    382D  LYS*     2.9    45.3    +      -       +      +
    383D  MET      3.9     3.1    -      -       -      +
    384D  PHE      3.4     0.2    -      -       -      -
    385D  GLU*     1.3    77.7    -      -       +      +
    387D  GLY*     1.3    61.7    +      -       -      +
    388D  LYS*     3.2    11.5    +      -       -      +
    394D  GLY*     4.4     2.0    -      -       -      +
    397D  LYS*     3.2    38.9    -      -       +      +
    398D  ALA*     3.8    25.4    -      -       +      +
    401D  THR*     3.8    26.9    -      -       +      +
    403D  VAL*     4.2    12.6    -      -       +      -
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Residues in contact with GLY 387 (chain D). Click here for Legend to table.
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                                  Specific contacts
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     Residue       Dist    Surf   HB    Arom    Phob    DC
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    383D  MET      3.1    10.7    +      -       -      -
    384D  PHE      3.8     0.9    -      -       -      -
    386D  LEU*     1.3    75.4    -      -       -      +
    388D  LYS*     1.3    70.9    +      -       -      +
    389D  GLY      3.2     2.9    -      -       -      -
    390D  ASP*     2.9    38.9    +      -       -      +
    393D  ILE*     4.1    12.7    -      -       -      +
    394D  GLY*     3.5    11.4    -      -       -      -
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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