Contacts of the helix formed by residues 380 - 405 (chain A) in PDB entry 4C2M


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 ASN 380 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  TYR*     4.2     2.8    +      -       -      +
    367A  PHE      4.2     4.2    +      -       -      -
    368A  ARG*     3.1    40.7    -      -       -      +
    369A  LEU      3.0    25.8    +      -       -      +
    370A  PRO*     4.2     4.0    -      -       -      +
    371A  SER*     5.6     1.8    -      -       -      -
    378A  HIS      3.7     0.8    +      -       -      -
    379A  GLU*     1.3    73.2    -      -       -      +
    381A  SER*     1.3    64.3    +      -       -      +
    382A  GLN*     2.9    33.8    +      -       -      +
    383A  ASN*     3.0    30.3    +      -       -      +
    384A  GLN*     3.2    12.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 381 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    379A  GLU      3.6     3.6    +      -       -      -
    380A  ASN*     1.3    74.3    +      -       -      +
    382A  GLN*     1.3    66.0    +      -       -      +
    384A  GLN*     3.1    26.5    +      -       -      +
    385A  LEU*     3.1    17.5    +      -       -      +
    453A  ILE*     3.4    25.3    -      -       -      +
    454A  PRO*     4.7    11.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 382 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    363A  PRO*     3.6    19.7    -      -       -      +
    367A  PHE*     4.6     4.2    -      -       -      +
    368A  ARG*     3.5    23.0    -      -       +      +
    380A  ASN*     2.9    12.7    +      -       -      +
    381A  SER*     1.3    82.8    +      -       -      +
    383A  ASN*     1.3    57.1    +      -       -      +
    385A  LEU*     3.5     9.3    +      -       +      +
    386A  LEU*     3.1    31.6    +      -       +      +
    437A  PHE*     3.7    23.1    -      -       +      -
    454A  PRO      5.6     1.3    -      -       -      +
    455A  GLY      5.7     0.8    -      -       -      -
    456A  VAL*     3.8    29.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 383 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  VAL*     5.0     8.3    -      -       +      +
     49A  LEU*     3.5    26.6    -      -       +      +
     50A  TYR*     3.3    42.0    +      -       -      -
    368A  ARG*     2.8    39.8    +      -       -      +
    379A  GLU*     5.8     3.8    -      -       +      +
    380A  ASN*     3.0    21.2    +      -       +      +
    382A  GLN*     1.3    74.7    -      -       -      +
    384A  GLN*     1.3    65.9    +      -       +      +
    386A  LEU*     3.2     0.9    +      -       -      +
    387A  SER*     2.9    24.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 384 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    379A  GLU*     3.4    45.0    +      -       -      +
    380A  ASN      3.2     8.2    +      -       -      +
    381A  SER*     3.1    23.6    +      -       -      +
    383A  ASN*     1.3    78.5    -      -       -      +
    385A  LEU*     1.3    62.8    +      -       -      +
    387A  SER*     3.2    18.5    +      -       -      -
    388A  LYS*     3.5    21.0    +      -       -      +
    453A  ILE*     3.9    23.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 385 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    381A  SER      3.1     8.8    +      -       -      +
    382A  GLN*     3.8    10.5    -      -       -      +
    383A  ASN      3.2     0.2    -      -       -      -
    384A  GLN*     1.3    78.8    -      -       -      +
    386A  LEU*     1.3    64.1    +      -       -      +
    388A  LYS*     3.2    25.5    +      -       +      +
    389A  VAL*     3.4    14.5    +      -       -      +
    433A  ASP      4.8     2.7    -      -       -      +
    436A  ALA*     3.4    42.8    -      -       +      +
    437A  PHE*     4.0    20.4    -      -       +      +
    453A  ILE*     3.9    31.2    -      -       +      +
    454A  PRO      3.5    23.8    -      -       -      +
    455A  GLY*     4.5     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 386 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  LEU*     3.8    33.2    -      -       +      -
     79A  ILE*     4.1    12.8    -      -       +      +
    360A  LEU*     4.1    14.1    -      -       +      -
    361A  VAL      5.6     1.1    -      -       -      +
    362A  VAL*     4.2    16.8    -      -       +      -
    363A  PRO*     4.3     6.5    -      -       +      -
    368A  ARG*     4.3    15.7    -      -       -      -
    382A  GLN*     3.1    21.4    +      -       +      +
    383A  ASN*     3.2     1.1    +      -       -      +
    385A  LEU*     1.3    73.4    -      -       -      +
    387A  SER*     1.3    61.9    +      -       -      +
    389A  VAL*     3.2     9.5    +      -       +      +
    390A  LEU*     3.0    29.8    +      -       -      +
    437A  PHE*     3.5    41.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 387 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  PRO*     3.5    29.8    -      -       -      +
     37A  VAL*     5.5     1.8    -      -       -      -
     49A  LEU*     4.0     5.3    -      -       -      +
    383A  ASN      2.9    15.0    +      -       -      -
    384A  GLN*     3.2    14.0    +      -       -      -
    385A  LEU      3.3     0.2    -      -       -      -
    386A  LEU*     1.3    77.2    -      -       -      +
    388A  LYS*     1.3    61.2    +      -       -      +
    390A  LEU*     3.1    12.1    +      -       -      +
    391A  THR*     3.0    33.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 388 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    384A  GLN*     3.5    17.3    +      -       -      +
    385A  LEU*     3.2    22.4    +      -       +      +
    386A  LEU      3.2     0.6    -      -       -      -
    387A  SER*     1.3    78.8    +      -       -      +
    389A  VAL*     1.3    62.2    +      -       -      +
    391A  THR*     2.9    22.0    +      -       -      +
    392A  THR*     3.1    15.9    +      -       -      -
    433A  ASP*     3.3    20.3    -      -       +      +
    446A  ARG*     4.5    22.2    -      -       -      +
    453A  ILE*     6.1     4.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 389 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  ILE*     4.1    22.2    -      -       +      -
     81A  LEU*     3.8    27.8    -      -       +      -
    360A  LEU*     4.3    19.3    -      -       +      -
    385A  LEU      3.4     9.4    +      -       -      +
    386A  LEU*     3.2    14.7    +      -       +      +
    388A  LYS*     1.3    79.2    -      -       -      +
    390A  LEU*     1.3    57.2    +      -       -      +
    392A  THR*     3.6     3.1    +      -       -      -
    393A  SER*     3.0    26.9    +      -       -      -
    430A  ILE*     4.2     4.3    -      -       +      +
    433A  ASP*     3.6    36.3    -      -       +      +
    434A  VAL*     4.3     2.7    -      -       +      +
    437A  PHE*     4.9     2.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 390 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  ILE*     3.5    39.5    -      -       +      +
     33A  THR*     3.8    12.1    -      -       -      +
     34A  ASN      3.4    25.1    -      -       -      +
     35A  PRO*     4.0    13.2    -      -       +      -
     49A  LEU*     4.2    11.2    -      -       +      -
     79A  ILE*     3.6    25.8    -      -       +      -
    386A  LEU      3.0    19.7    +      -       -      +
    387A  SER*     3.1    16.5    +      -       -      +
    389A  VAL*     1.3    75.2    -      -       -      +
    391A  THR*     1.3    65.1    +      -       -      +
    393A  SER*     3.2     7.5    +      -       -      -
    394A  LEU*     3.0    26.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 391 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  PRO*     3.7    25.8    -      -       +      -
    387A  SER      3.0    16.8    +      -       -      +
    388A  LYS*     2.9    17.3    +      -       -      +
    390A  LEU*     1.3    70.4    -      -       -      +
    392A  THR*     1.3    76.7    +      -       -      +
    393A  SER      3.0     1.1    -      -       -      -
    394A  LEU*     3.2     6.7    +      -       -      +
    395A  LEU*     2.9    34.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 392 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    388A  LYS      3.1     8.2    +      -       -      -
    389A  VAL      3.9     3.4    -      -       -      -
    391A  THR*     1.3    82.9    +      -       -      +
    393A  SER*     1.3    58.3    +      -       -      +
    395A  LEU*     3.3    10.4    +      -       +      +
    396A  ILE*     2.9    36.2    +      -       +      +
    429A  THR*     3.9    12.4    +      -       -      +
    430A  ILE*     3.7    41.7    -      -       +      +
    433A  ASP*     2.4    25.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 393 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  ILE*     4.6     7.1    -      -       -      +
     80A  GLU      3.2    14.0    +      -       -      -
     81A  LEU*     4.4     2.1    -      -       -      +
     82A  PRO*     3.1    33.5    -      -       -      +
    389A  VAL      3.0    20.7    +      -       -      -
    390A  LEU*     3.2    11.7    -      -       -      -
    391A  THR      3.0     0.2    -      -       -      -
    392A  THR*     1.3    75.0    -      -       -      +
    394A  LEU*     1.3    68.7    +      -       -      +
    396A  ILE*     3.3     3.5    +      -       -      +
    397A  ARG*     3.0    30.5    +      -       -      +
    430A  ILE*     4.9     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 394 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  THR*     3.7    31.6    -      -       +      +
     34A  ASN*     5.3     0.4    -      -       -      -
     35A  PRO*     4.1    19.5    -      -       +      -
    390A  LEU      3.0    16.4    +      -       -      +
    391A  THR*     3.7     7.0    -      -       -      +
    393A  SER*     1.3    76.0    -      -       -      +
    395A  LEU*     1.3    65.8    +      -       +      +
    397A  ARG*     3.2    25.9    +      -       +      +
    398A  ASP*     3.2    21.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 395 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    391A  THR*     2.9    26.5    +      -       -      +
    392A  THR*     3.6     9.4    -      -       +      +
    393A  SER      3.2     0.2    -      -       -      -
    394A  LEU*     1.3    81.3    -      -       +      +
    396A  ILE*     1.3    61.1    +      -       +      +
    398A  ASP*     3.3    15.9    +      -       +      +
    399A  LEU*     3.2    19.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 396 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  PRO*     3.6    32.1    -      -       +      +
     83A  VAL*     4.9    15.5    -      -       +      -
    392A  THR*     2.9    24.7    +      -       +      +
    393A  SER      3.8     0.2    -      -       -      +
    394A  LEU      3.3     0.2    -      -       -      -
    395A  LEU*     1.3    72.3    -      -       +      +
    397A  ARG*     1.3    58.1    +      -       -      +
    398A  ASP      3.0     5.4    -      -       -      -
    399A  LEU*     3.2     9.1    +      -       +      +
    400A  ASN*     2.9    32.0    +      -       +      +
    426A  ALA*     3.6    45.3    -      -       +      +
    430A  ILE*     3.7    23.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 397 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  GLN*     5.2     6.9    -      -       -      +
     33A  THR*     6.1     1.6    -      -       -      +
     80A  GLU*     3.1    41.3    +      -       -      +
     82A  PRO*     4.1    22.0    -      -       +      +
    393A  SER*     3.0    25.2    +      -       -      +
    394A  LEU*     3.2    21.8    +      -       +      +
    396A  ILE*     1.3    77.5    -      -       -      +
    398A  ASP*     1.3    59.1    +      -       -      +
    400A  ASN*     3.9    11.8    +      -       +      +
    401A  ASP*     3.5    18.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 398 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    394A  LEU*     3.2    17.6    +      -       -      +
    395A  LEU*     3.4    18.6    -      -       +      +
    396A  ILE      3.0     0.6    -      -       -      -
    397A  ARG*     1.3    76.9    -      -       -      +
    399A  LEU*     1.3    64.6    +      -       -      +
    400A  ASN      3.1     1.1    -      -       -      -
    401A  ASP*     3.0    17.6    +      -       -      +
    402A  ASP*     3.1    24.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 399 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    395A  LEU      3.2    10.1    +      -       -      +
    396A  ILE*     3.5    12.6    -      -       +      +
    398A  ASP*     1.3    78.3    -      -       -      +
    400A  ASN*     1.3    58.8    +      -       -      +
    402A  ASP*     3.4     6.4    +      -       +      +
    403A  LEU*     3.0    47.8    +      -       +      +
    422A  ARG*     3.8    36.1    -      -       +      +
    423A  LEU*     4.5    12.6    -      -       +      -
    426A  ALA*     3.8    29.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 400 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  PRO*     6.0     0.8    +      -       +      -
    396A  ILE*     2.9    20.5    +      -       +      +
    397A  ARG*     4.0    13.6    -      -       -      +
    398A  ASP      3.1     0.2    -      -       -      -
    399A  LEU*     1.3    78.8    -      -       -      +
    401A  ASP*     1.3    59.0    +      -       -      +
    403A  LEU*     3.8    16.4    -      -       -      +
    404A  SER*     3.6    19.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 401 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    397A  ARG      3.5    13.7    +      -       -      +
    398A  ASP*     3.0    18.4    +      -       -      +
    400A  ASN*     1.3    78.4    -      -       -      +
    402A  ASP*     1.3    66.7    +      -       -      +
    403A  LEU      3.2     0.4    -      -       -      -
    404A  SER*     2.9    21.4    +      -       -      -
    405A  LYS*     2.9    44.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 402 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    398A  ASP*     3.1    18.3    +      -       -      +
    399A  LEU*     4.0     7.4    -      -       +      +
    401A  ASP*     1.3    84.1    -      -       -      +
    403A  LEU*     1.3    66.0    +      -       +      +
    404A  SER      3.3     0.2    -      -       -      -
    405A  LYS*     3.3    23.5    +      -       -      +
    406A  LEU*     3.7    15.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 403 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    399A  LEU*     3.0    36.2    +      -       +      +
    400A  ASN*     3.9    17.0    -      -       -      +
    401A  ASP      3.2     0.2    -      -       -      -
    402A  ASP*     1.3    79.7    -      -       +      +
    404A  SER*     1.3    60.9    +      -       -      +
    406A  LEU*     3.5    34.8    +      -       +      +
    419A  ILE*     4.0    22.4    -      -       +      -
    422A  ARG*     6.1     2.2    -      -       +      -
    423A  LEU*     3.9    35.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 404 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    400A  ASN      3.6    10.2    +      -       -      -
    401A  ASP*     2.9    22.5    +      -       -      -
    403A  LEU*     1.3    75.0    -      -       -      +
    405A  LYS*     1.3    60.4    +      -       -      +
    406A  LEU      3.1    17.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 405 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    401A  ASP*     2.9    42.0    +      -       -      +
    402A  ASP*     3.3    20.0    +      -       -      +
    403A  LEU      3.3     1.2    -      -       -      -
    404A  SER*     1.3    77.3    +      -       -      +
    406A  LEU*     1.3    63.0    +      -       -      +
    407A  GLN*     3.8     8.1    +      -       -      +
----------------------------------------------------------
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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