Contacts of the helix formed by residues 396 - 419 (chain A) in PDB entry 3LMK


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with LYS 396 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  TYR*     4.6     3.2    +      -       -      +
     68A  ARG*     3.9    19.7    -      -       -      +
    172A  TYR*     4.1     7.0    -      -       +      +
    173A  SER*     3.2    32.1    -      -       -      +
    305A  ASP*     2.7    40.8    +      -       -      +
    308A  ALA*     5.8     1.4    -      -       -      +
    329A  LEU*     4.1    23.1    -      -       +      -
    394A  ASP*     3.1     7.8    +      -       -      +
    395A  SER*     1.3    80.4    -      -       -      +
    397A  MET*     1.3    63.2    +      -       -      +
    398A  GLY      3.3     2.5    -      -       -      -
    399A  PHE*     3.0    33.3    +      -       +      +
    400A  VAL*     3.2    11.7    +      -       -      +
    506A  GLU*     2.8    23.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 397 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67A  GLN*     3.6    30.7    -      -       +      +
     68A  ARG*     4.3     4.0    -      -       +      +
     71A  ALA*     3.4    25.1    -      -       +      -
    332A  PRO      5.9     0.2    -      -       -      +
    334A  VAL*     4.0     3.8    -      -       +      -
    337A  PHE*     3.8    20.9    -      -       +      -
    393A  GLN*     3.4    26.0    -      -       +      +
    394A  ASP*     3.3    44.4    +      -       +      +
    395A  SER      3.3     2.6    -      -       -      -
    396A  LYS*     1.3    77.3    -      -       -      +
    398A  GLY*     1.3    62.7    +      -       -      +
    400A  VAL*     3.3     6.9    +      -       -      +
    401A  ILE*     3.2    36.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 398 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331A  SER*     3.5    15.0    +      -       -      -
    332A  PRO      4.7     4.3    +      -       -      -
    334A  VAL*     3.8    19.7    -      -       -      +
    396A  LYS      3.3     0.8    -      -       -      -
    397A  MET*     1.3    79.0    -      -       -      +
    399A  PHE*     1.3    58.4    +      -       -      +
    401A  ILE*     3.4     1.8    +      -       -      +
    402A  ASN*     2.9    38.7    +      -       -      +
    449A  VAL*     4.1     8.0    -      -       -      +
    450A  SER*     5.2     2.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 399 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172A  TYR*     3.4    20.6    -      -       +      +
    191A  VAL*     3.3    38.3    -      -       +      +
    192A  VAL*     3.6    17.0    -      -       +      -
    193A  PRO*     5.8     0.9    -      -       +      -
    329A  LEU*     3.7    33.4    -      -       +      -
    330A  GLN      3.4    24.7    -      -       -      -
    331A  SER*     3.5    16.8    -      -       -      -
    396A  LYS*     3.0    34.4    +      -       +      +
    398A  GLY*     1.3    76.8    -      -       -      +
    400A  VAL*     1.3    66.4    +      -       -      +
    402A  ASN*     3.3     7.4    +      -       -      -
    403A  ALA*     3.0    21.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 400 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  PHE*     4.2    22.0    -      -       +      -
     68A  ARG*     3.8    27.6    -      -       +      +
     71A  ALA*     4.6    14.1    -      -       +      -
    147A  ILE*     5.0     1.1    -      -       +      -
    172A  TYR*     3.6    34.2    -      -       +      +
    394A  ASP*     4.4     2.0    -      -       -      +
    396A  LYS      3.2    10.7    +      -       -      +
    397A  MET*     3.5    10.8    -      -       -      +
    399A  PHE*     1.3    77.4    -      -       -      +
    401A  ILE*     1.3    64.1    +      -       +      +
    403A  ALA*     3.2     4.4    +      -       -      +
    404A  ILE*     3.1    38.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 401 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  ALA*     4.3     8.5    -      -       +      -
     75A  THR*     3.7    14.4    -      -       -      +
    334A  VAL*     3.8    20.9    -      -       +      -
    336A  TRP*     3.5    40.2    -      -       +      -
    337A  PHE*     4.7     1.3    -      -       +      -
    397A  MET*     3.2    38.7    +      -       +      +
    398A  GLY      3.9     4.7    -      -       -      +
    399A  PHE      3.2     0.6    -      -       -      -
    400A  VAL*     1.3    77.5    -      -       +      +
    402A  ASN*     1.3    57.9    +      -       -      +
    404A  ILE*     3.3     8.8    +      -       -      +
    405A  TYR*     3.1    50.0    +      -       +      -
    449A  VAL*     4.1    14.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 402 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191A  VAL*     4.2    10.5    -      -       +      +
    398A  GLY      2.9    24.2    +      -       -      +
    399A  PHE*     3.9    11.1    -      -       -      +
    401A  ILE*     1.3    75.0    -      -       -      +
    403A  ALA*     1.3    59.0    +      -       -      +
    405A  TYR*     3.3     5.3    +      -       -      -
    406A  SER*     2.8    33.7    +      -       -      -
    446A  PHE*     3.5     5.5    -      -       -      -
    448A  GLY*     3.7     2.5    -      -       -      -
    449A  VAL*     3.1    36.8    +      -       -      +
    450A  SER*     5.4     3.6    +      -       -      +
    454A  ILE*     3.5    35.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 403 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147A  ILE*     3.6    26.7    -      -       +      +
    170A  ILE*     3.9    20.8    -      -       +      +
    171A  ALA      4.5     2.7    -      -       -      +
    172A  TYR*     4.6     2.9    -      -       +      -
    191A  VAL*     4.0    19.2    -      -       +      +
    399A  PHE      3.0    13.5    +      -       -      +
    400A  VAL*     3.2    11.6    +      -       -      +
    402A  ASN*     1.3    77.2    -      -       -      +
    404A  ILE*     1.3    60.8    +      -       -      +
    406A  SER*     3.3     5.1    +      -       -      -
    407A  MET*     3.1    17.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 404 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  ILE*     6.0     1.1    -      -       +      -
     71A  ALA      4.7     0.2    -      -       -      -
     72A  MET*     3.8    45.8    -      -       +      +
     75A  THR*     3.8    28.0    -      -       +      +
     76A  LEU*     3.9    25.6    -      -       +      -
     79A  ILE*     4.1     2.9    -      -       +      -
    147A  ILE*     4.0    17.9    -      -       +      -
    400A  VAL*     3.1    34.8    +      -       +      +
    401A  ILE*     3.7     6.5    -      -       -      +
    402A  ASN      3.3     0.4    -      -       -      -
    403A  ALA*     1.3    75.9    -      -       -      +
    405A  TYR*     1.3    57.5    +      -       -      +
    407A  MET*     3.3     5.3    +      -       +      +
    408A  ALA*     2.9    26.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 405 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75A  THR*     3.8    17.3    -      -       +      -
     78A  ARG*     4.4    24.8    +      -       -      +
     79A  ILE*     3.7    26.9    +      -       +      +
     82A  ASP*     5.4     6.2    +      -       -      +
     85A  LEU*     4.0    16.2    -      -       +      -
    336A  TRP*     4.9     5.4    -      +       -      -
    401A  ILE*     3.1    39.8    +      -       +      +
    402A  ASN*     3.7     7.9    -      -       -      +
    403A  ALA      3.2     0.2    -      -       -      -
    404A  ILE*     1.3    75.2    -      -       -      +
    406A  SER*     1.3    60.0    +      -       -      +
    408A  ALA*     3.5     3.4    -      -       -      +
    409A  TYR*     2.8    60.3    +      +       -      -
    446A  PHE*     3.8    17.3    -      +       +      -
    449A  VAL*     5.3     8.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 406 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170A  ILE*     3.9    11.9    -      -       -      -
    191A  VAL*     4.0     4.2    -      -       -      +
    402A  ASN      2.8    16.9    +      -       -      -
    403A  ALA*     3.4    11.4    -      -       -      -
    405A  TYR*     1.3    74.0    -      -       -      +
    407A  MET*     1.3    56.6    +      -       -      +
    409A  TYR*     3.2     2.4    +      -       -      +
    410A  GLY      2.8    30.8    +      -       -      -
    441A  LEU*     3.1     9.3    -      -       -      +
    444A  THR*     3.7    16.8    +      -       -      +
    446A  PHE*     3.0    24.5    -      -       -      -
    454A  ILE*     3.9     7.4    -      -       -      +
    456A  PHE*     4.1     7.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET 407 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  ILE*     3.8    28.9    -      -       +      -
    144A  VAL*     6.1     0.2    -      -       -      -
    145A  GLY*     3.7    13.0    -      -       -      -
    146A  VAL      3.4    35.4    -      -       -      +
    147A  ILE*     3.9    11.7    -      -       +      -
    168A  PRO      3.9     4.7    -      -       -      +
    170A  ILE*     3.6    26.6    -      -       +      +
    403A  ALA      3.1     8.4    +      -       -      +
    404A  ILE*     3.3     9.6    +      -       +      +
    406A  SER*     1.3    77.9    -      -       -      +
    408A  ALA*     1.3    63.5    +      -       -      +
    410A  GLY*     3.1     3.1    +      -       -      -
    411A  LEU*     2.9    31.6    +      -       +      +
    437A  LEU*     4.5     9.4    -      -       -      +
    441A  LEU*     3.8    23.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 408 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  ILE*     3.9    23.8    -      -       +      -
     85A  LEU*     4.0    15.3    -      -       +      -
     86A  LEU*     3.5    14.8    -      -       +      +
     91A  LEU*     4.1    12.5    -      -       +      +
    404A  ILE      2.9    16.2    +      -       -      +
    405A  TYR*     3.5     6.7    -      -       -      +
    407A  MET*     1.3    76.7    -      -       -      +
    409A  TYR*     1.3    56.6    +      -       -      +
    411A  LEU*     3.2     7.3    +      -       -      +
    412A  HIS*     2.9    28.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 409 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  ASP*     5.5     2.1    +      -       -      -
     85A  LEU*     3.7    29.2    -      -       +      +
    405A  TYR*     2.8    52.7    +      +       -      +
    406A  SER      3.8     3.1    -      -       -      +
    408A  ALA*     1.3    70.4    -      -       -      +
    410A  GLY*     1.3    61.2    +      -       -      +
    412A  HIS*     3.7     9.3    -      +       +      +
    413A  ASN*     2.9    48.2    +      -       -      +
    444A  THR*     5.9     2.5    -      -       +      -
    445A  ASN      6.3     0.2    -      -       -      +
    446A  PHE*     3.5    54.6    -      +       +      +
    447A  THR      5.1     3.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 410 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    406A  SER      2.8    11.5    +      -       -      -
    407A  MET      3.7     0.2    -      -       -      -
    409A  TYR*     1.3    76.3    -      -       -      +
    411A  LEU*     1.3    60.7    +      -       -      +
    413A  ASN*     4.5     1.8    -      -       -      -
    414A  MET*     3.2    13.7    +      -       -      +
    437A  LEU*     3.8     7.0    -      -       -      -
    440A  SER*     2.7    29.7    +      -       -      -
    441A  LEU*     3.5    26.9    -      -       -      -
    444A  THR*     5.6     0.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 411 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  ILE*     4.0    18.6    -      -       +      -
     37A  ILE*     3.8    28.3    -      -       +      -
     86A  LEU*     3.9    13.1    -      -       +      +
     91A  LEU*     4.0    14.1    -      -       +      -
    144A  VAL*     3.8    27.8    -      -       +      -
    407A  MET*     2.9    31.5    +      -       +      +
    408A  ALA*     3.5     8.5    -      -       -      +
    410A  GLY*     1.3    77.0    -      -       -      +
    412A  HIS*     1.3    55.7    +      -       -      +
    414A  MET*     3.4     6.7    -      -       -      +
    415A  GLN*     3.0    28.1    +      -       -      +
    429A  MET*     4.0     7.7    -      -       +      +
    432A  ILE*     4.3     7.6    -      -       +      -
    437A  LEU*     3.9    17.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 412 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  THR      3.4    24.5    +      -       -      -
     85A  LEU*     3.7    16.6    -      -       +      -
     86A  LEU*     2.8    37.1    +      -       +      +
     87A  PRO*     3.9    11.7    -      -       +      -
    408A  ALA      2.9    16.6    +      -       -      +
    409A  TYR*     3.7     9.4    -      +       -      +
    411A  LEU*     1.3    74.3    -      -       -      +
    413A  ASN*     1.3    66.7    +      -       -      +
    415A  GLN*     3.1     9.5    +      -       -      +
    416A  MET*     3.0    60.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 413 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    409A  TYR*     2.9    34.5    +      -       -      +
    410A  GLY*     4.4     0.8    -      -       -      +
    412A  HIS*     1.3    86.4    -      -       -      +
    414A  MET*     1.3    62.7    +      -       -      +
    416A  MET*     3.3    20.4    +      -       -      +
    417A  SER*     3.3    14.0    +      -       -      -
    440A  SER*     3.5    22.6    +      -       -      +
    443A  LYS*     5.2     6.5    +      -       -      +
    444A  THR*     5.8     2.6    -      -       -      +
    445A  ASN      5.9     1.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 414 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    410A  GLY      3.2    15.6    +      -       -      +
    411A  LEU*     3.4     6.5    -      -       -      +
    413A  ASN*     1.3    78.7    -      -       -      +
    415A  GLN*     1.3    56.1    +      -       -      +
    417A  SER*     3.3     8.2    +      -       -      -
    418A  LEU*     3.0    57.7    +      -       +      +
    429A  MET*     4.1    17.9    -      -       +      -
    432A  ILE*     3.7    22.7    -      -       +      -
    433A  ASP*     3.6    28.7    -      -       +      +
    436A  LYS*     3.9    11.9    -      -       +      +
    437A  LEU*     3.8    31.4    -      -       -      -
    440A  SER*     3.7     8.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 415 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86A  LEU*     4.7     3.1    -      -       +      -
     87A  PRO*     5.0    10.0    +      -       -      +
     89A  ILE*     3.9    23.6    -      -       +      -
    411A  LEU      3.0    15.4    +      -       -      +
    412A  HIS*     3.1    21.9    +      -       -      +
    414A  MET*     1.3    76.3    -      -       -      +
    416A  MET*     1.3    68.2    +      -       -      +
    419A  CYS*     2.8    41.0    +      -       +      +
    422A  TYR      3.0    26.5    +      -       -      -
    423A  ALA*     4.3     0.8    -      -       -      +
    424A  GLY      3.4    24.7    +      -       -      +
    429A  MET*     3.5    20.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 416 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    412A  HIS*     3.0    48.4    +      -       +      +
    413A  ASN*     3.3    17.0    +      -       -      +
    415A  GLN*     1.3    86.8    -      -       -      +
    417A  SER*     1.3    60.2    +      -       -      +
    419A  CYS      4.7     2.2    -      -       -      -
    420A  PRO*     3.5    23.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 417 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    413A  ASN      3.3    10.4    +      -       -      -
    414A  MET*     3.3    11.6    +      -       -      -
    416A  MET*     1.3    81.6    -      -       -      +
    418A  LEU*     1.3    68.4    +      -       -      +
    419A  CYS      3.5     0.2    -      -       -      -
    420A  PRO*     4.4     8.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 418 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    414A  MET*     3.0    48.7    +      -       +      +
    417A  SER*     1.3    85.1    +      -       -      +
    419A  CYS*     1.3    58.9    +      -       -      +
    420A  PRO*     3.7     6.6    -      -       -      +
    426A  CYS*     3.3    12.3    -      -       -      -
    428A  ALA*     3.9    29.4    -      -       +      +
    429A  MET*     3.6    24.2    -      -       +      -
    433A  ASP*     6.1     0.9    -      -       +      -
    436A  LYS*     5.3     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 419 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    415A  GLN*     2.8    33.1    +      -       -      +
    416A  MET*     4.7     1.4    -      -       -      -
    418A  LEU*     1.3    79.8    -      -       -      +
    420A  PRO*     1.4    65.5    -      -       -      +
    421A  GLY      3.6     1.6    -      -       -      -
    422A  TYR*     3.3    22.2    +      -       +      +
    424A  GLY      4.1     5.2    -      -       -      +
    426A  CYS*     2.1    60.6    -      -       +      -
    429A  MET*     4.1    21.5    -      -       -      -
----------------------------------------------------------
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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