Contacts of the helix formed by residues 421 - 451 (chain A) in PDB entry 2ZNN


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 PHE 421 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    419A  ASP*     3.0     9.8    +      -       -      +
    420A  ILE*     1.3   102.3    -      -       +      +
    422A  LEU*     1.3    65.2    +      -       -      +
    423A  PHE      3.3     2.7    -      -       -      -
    424A  PRO*     3.0    31.4    -      -       +      +
    425A  LYS*     3.0    30.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 422 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    368A  LEU*     4.4    23.6    -      -       +      +
    370A  LEU*     3.9    25.4    -      -       +      -
    412A  LEU*     4.0    17.0    -      -       +      +
    416A  HIS*     3.2    48.0    -      -       +      +
    419A  ASP*     3.1    35.7    +      -       +      +
    420A  ILE      3.5     1.2    -      -       -      -
    421A  PHE*     1.3    77.3    -      -       -      +
    423A  PHE*     1.3    62.6    +      -       -      +
    425A  LYS*     3.3     3.8    +      -       +      +
    426A  LEU*     2.9    32.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 423 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    405A  VAL*     4.0    22.2    -      -       +      -
    408A  LEU*     4.4    13.0    -      -       +      -
    409A  ARG*     3.6    55.0    -      -       +      +
    412A  LEU*     3.6    23.1    -      -       +      +
    420A  ILE      5.2     0.6    +      -       -      +
    422A  LEU*     1.3    78.3    -      -       -      +
    424A  PRO*     1.4    74.9    -      -       +      +
    426A  LEU*     3.0     5.5    +      -       +      +
    427A  LEU*     3.0    59.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 424 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    420A  ILE      4.6     4.3    -      -       -      +
    421A  PHE*     3.0    43.5    -      -       +      +
    423A  PHE*     1.4    93.6    -      -       +      +
    425A  LYS*     1.3    62.0    +      -       +      +
    427A  LEU*     3.1    15.8    +      -       +      +
    428A  GLN*     3.0    21.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 425 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    368A  LEU*     3.8    31.2    -      -       +      +
    419A  ASP*     2.8    37.6    +      -       -      +
    421A  PHE*     3.0    33.4    +      -       +      +
    422A  LEU*     3.4     8.5    -      -       +      +
    423A  PHE      3.2     0.2    -      -       -      -
    424A  PRO*     1.3    76.4    -      -       +      +
    426A  LEU*     1.3    57.5    +      -       -      +
    428A  GLN*     3.2    13.5    +      -       -      +
    429A  LYS*     2.9    33.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 426 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    365A  PHE*     3.8    21.5    -      -       +      -
    368A  LEU*     3.7    26.0    -      -       +      -
    370A  LEU*     3.8    16.4    -      -       +      -
    374A  ASP*     5.8     1.1    -      -       +      +
    378A  PHE*     3.4    23.7    -      -       +      -
    408A  LEU*     4.7    10.1    -      -       +      -
    412A  LEU*     3.5    38.6    -      -       +      -
    422A  LEU*     2.9    25.0    +      -       +      +
    423A  PHE*     3.0     4.9    +      -       +      +
    425A  LYS*     1.3    74.1    -      -       -      +
    427A  LEU*     1.3    67.4    +      -       +      +
    429A  LYS*     3.0     4.9    +      -       +      +
    430A  MET*     3.0    26.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 427 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    405A  VAL*     5.5     8.3    -      -       +      -
    408A  LEU*     5.8     2.5    -      -       +      -
    423A  PHE*     3.0    58.0    +      -       +      +
    424A  PRO*     3.4    12.6    -      -       +      +
    426A  LEU*     1.3    75.0    -      -       +      +
    428A  GLN*     1.3    63.9    +      -       -      +
    430A  MET*     3.1    36.2    +      -       -      +
    431A  ALA*     3.3     7.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 428 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    364A  LYS*     5.6     2.9    +      -       -      -
    424A  PRO      3.0    12.3    +      -       -      +
    425A  LYS*     3.3    13.4    -      -       -      +
    427A  LEU*     1.3    79.1    -      -       -      +
    429A  LYS*     1.3    64.1    +      -       -      +
    431A  ALA*     3.0     9.9    +      -       +      +
    432A  ASP*     2.8    43.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 429 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    361A  PHE*     4.1    18.8    -      -       +      -
    364A  LYS*     3.7    42.2    -      -       -      +
    365A  PHE*     3.9    27.4    -      -       +      +
    368A  LEU*     4.2    22.7    -      -       +      -
    378A  PHE*     4.1    12.6    -      -       +      -
    425A  LYS*     2.9    21.3    +      -       -      +
    426A  LEU*     3.0    13.6    +      -       -      +
    428A  GLN*     1.3    83.9    +      -       -      +
    430A  MET*     1.3    57.2    +      -       -      +
    432A  ASP*     3.2    19.3    +      -       -      +
    433A  LEU*     2.8    35.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 430 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    315A  GLU*     4.5     7.9    -      -       -      +
    378A  PHE*     3.4    32.1    -      -       +      -
    381A  ALA*     3.5    38.1    -      -       +      +
    382A  ILE*     3.6    22.9    -      -       +      +
    385A  CYS*     6.0     3.8    -      -       +      -
    388A  ARG*     6.0     0.9    -      -       -      +
    401A  GLN*     5.7     3.8    -      -       -      +
    405A  VAL*     6.0     2.9    -      -       +      -
    408A  LEU*     5.7     2.7    -      -       -      -
    426A  LEU      3.0    10.6    +      -       -      +
    427A  LEU*     3.1    27.8    +      -       -      +
    429A  LYS*     1.3    76.6    -      -       -      +
    431A  ALA*     1.3    62.7    +      -       -      +
    433A  LEU*     3.4     7.8    +      -       -      +
    434A  ARG*     3.1    22.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 431 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    427A  LEU      3.3     7.0    +      -       -      +
    428A  GLN*     3.0    14.0    +      -       +      +
    430A  MET*     1.3    77.1    -      -       -      +
    432A  ASP*     1.3    68.6    +      -       -      +
    434A  ARG*     3.1    11.5    +      -       -      +
    435A  GLN*     3.1    20.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 432 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    361A  PHE*     4.1    15.4    -      -       +      -
    364A  LYS*     5.4     3.6    +      -       -      -
    428A  GLN*     2.8    34.9    +      -       -      +
    429A  LYS*     3.5    31.8    +      -       -      +
    431A  ALA*     1.3    77.3    -      -       -      +
    433A  LEU*     1.3    52.2    +      -       -      +
    435A  GLN*     3.1     8.1    +      -       -      +
    436A  LEU*     2.8    35.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 433 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    315A  GLU*     3.6    28.7    -      -       +      +
    318A  PHE*     4.0     8.1    -      -       +      -
    319A  ALA*     3.8     5.4    -      -       +      +
    361A  PHE*     3.5    31.9    -      -       +      -
    378A  PHE*     3.7    18.8    -      -       +      -
    382A  ILE*     3.6    30.3    -      -       +      -
    429A  LYS      2.8    19.2    +      -       -      +
    430A  MET*     3.6     6.1    -      -       -      +
    432A  ASP*     1.3    76.6    -      -       -      +
    434A  ARG*     1.3    58.0    +      -       -      +
    436A  LEU*     3.2    20.0    +      -       +      +
    437A  VAL*     2.8    35.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 434 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    315A  GLU*     3.2    20.2    +      -       -      +
    385A  CYS*     2.9    35.6    -      -       -      -
    387A  ASP*     2.5    26.6    +      -       -      -
    388A  ARG*     3.7    18.5    -      -       -      +
    430A  MET      3.1    13.4    +      -       -      +
    431A  ALA*     3.1    12.9    +      -       -      +
    433A  LEU*     1.3    76.2    -      -       -      +
    435A  GLN*     1.3    62.1    +      -       -      +
    437A  VAL*     3.3     2.3    +      -       -      +
    438A  THR*     3.0    30.1    +      -       +      +
    468A  TYR*     3.6    17.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 435 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    431A  ALA      3.1    11.7    +      -       -      +
    432A  ASP*     3.5     9.2    -      -       -      +
    434A  ARG*     1.3    73.1    -      -       -      +
    436A  LEU*     1.3    66.8    +      -       -      +
    438A  THR*     3.1    28.8    +      -       -      +
    439A  GLU*     3.1    51.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 436 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    318A  PHE*     3.7    39.5    -      -       +      -
    357A  PRO*     3.9    36.8    -      -       +      +
    358A  LYS*     4.5    12.1    +      -       +      +
    361A  PHE*     4.3    19.3    -      -       +      -
    432A  ASP      2.8    17.9    +      -       -      +
    433A  LEU*     3.2    20.8    +      -       +      +
    435A  GLN*     1.3    74.8    -      -       -      +
    437A  VAL*     1.3    55.4    +      -       -      +
    439A  GLU*     3.5    14.6    +      -       -      +
    440A  HIS*     2.9    26.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 437 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    311A  TYR      5.5     1.8    -      -       -      +
    314A  TYR*     3.8    25.4    -      -       +      -
    315A  GLU*     3.6    37.9    -      -       +      +
    318A  PHE*     4.0    10.5    -      -       +      -
    433A  LEU*     2.8    20.2    +      -       -      +
    434A  ARG      3.6     5.2    -      -       -      +
    435A  GLN      3.2     0.2    -      -       -      -
    436A  LEU*     1.3    74.3    -      -       -      +
    438A  THR*     1.3    61.4    +      -       -      +
    440A  HIS*     3.1     7.0    +      -       +      +
    441A  ALA*     2.8    29.4    +      -       +      +
    464A  TYR*     5.5     2.0    -      -       +      -
    467A  MET*     4.1     9.9    -      -       +      -
    468A  TYR*     3.5    22.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 438 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    434A  ARG*     3.0    22.1    +      -       +      +
    435A  GLN*     3.1    24.2    +      -       -      +
    437A  VAL*     1.3    74.4    -      -       -      +
    439A  GLU*     1.3    61.7    +      -       -      +
    441A  ALA*     3.2     3.3    +      -       -      +
    442A  GLN*     3.0    39.2    +      -       -      +
    468A  TYR*     3.4    49.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 439 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    357A  PRO*     5.8     2.6    -      -       -      +
    435A  GLN*     3.1    46.0    +      -       -      +
    436A  LEU*     3.7    17.5    -      -       +      +
    438A  THR*     1.3    79.7    +      -       -      +
    440A  HIS*     1.3    63.8    +      -       -      +
    442A  GLN*     3.2    20.9    +      -       -      +
    443A  LEU*     3.1    22.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 440 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    314A  TYR*     4.5     2.0    -      +       -      -
    318A  PHE*     3.7    22.0    -      +       +      -
    354A  ILE*     3.9    15.0    -      -       +      +
    358A  LYS*     2.7    32.7    +      -       -      +
    436A  LEU      2.9    17.9    +      -       -      +
    437A  VAL*     3.5     5.8    -      -       +      +
    439A  GLU*     1.3    75.8    -      -       -      +
    441A  ALA*     1.3    58.3    +      -       -      +
    443A  LEU*     3.3     6.1    +      -       -      +
    444A  VAL*     2.9    43.8    +      -       +      +
    464A  TYR*     3.0    21.9    +      +       -      -
    901A  S44      2.8    53.1    +      +       +      +
----------------------------------------------------------
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Residues in contact with ALA 441 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    437A  VAL      2.8    13.6    +      -       -      +
    438A  THR      3.4     9.2    -      -       -      +
    439A  GLU      3.2     0.2    -      -       -      -
    440A  HIS*     1.3    77.1    -      -       -      +
    442A  GLN*     1.3    57.5    +      -       -      +
    444A  VAL*     3.1     3.8    +      -       -      +
    445A  GLN*     2.9    30.0    +      -       -      +
    464A  TYR*     4.0    31.5    -      -       +      +
    467A  MET*     5.3     0.4    -      -       -      -
    468A  TYR*     4.2    28.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 442 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    438A  THR*     3.0    25.6    +      -       -      +
    439A  GLU*     3.2    23.0    +      -       -      +
    441A  ALA*     1.3    77.2    -      -       +      +
    443A  LEU*     1.3    56.8    +      -       -      +
    445A  GLN*     3.3     9.9    +      -       -      +
    446A  ILE*     3.0    33.8    +      -       +      +
    468A  TYR*     5.4     7.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 443 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    350A  PRO*     3.9    26.5    -      -       +      +
    353A  ASP*     3.3    39.0    -      -       +      +
    354A  ILE*     3.3    28.7    -      -       +      +
    358A  LYS*     6.0     0.9    -      -       -      +
    439A  GLU      3.1    12.5    +      -       -      +
    440A  HIS*     3.7     8.1    -      -       -      +
    442A  GLN*     1.3    74.0    -      -       -      +
    444A  VAL*     1.3    66.5    +      -       -      +
    446A  ILE*     3.3    20.1    +      -       +      -
    447A  ILE*     3.0    23.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 444 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    273A  PHE*     4.6    16.8    -      -       +      -
    354A  ILE*     4.7     4.5    -      -       +      -
    440A  HIS*     2.9    50.1    +      -       +      +
    441A  ALA*     3.1     7.8    +      -       -      +
    443A  LEU*     1.3    75.7    -      -       -      +
    445A  GLN*     1.3    58.4    +      -       -      +
    447A  ILE*     3.1    11.0    +      -       -      +
    448A  LYS*     2.8    28.7    +      -       +      +
    456A  LEU*     3.7    29.4    -      -       +      -
    464A  TYR*     3.7    19.5    -      -       +      +
    901A  S44      4.1     4.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 445 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    441A  ALA      2.9    12.1    +      -       -      +
    442A  GLN*     3.3    13.2    -      -       -      +
    444A  VAL*     1.3    77.9    -      -       -      +
    446A  ILE*     1.3    63.7    +      -       +      +
    448A  LYS*     3.1    24.0    +      -       -      +
    449A  LYS*     2.9    61.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 446 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    350A  PRO*     4.8     9.9    -      -       +      -
    442A  GLN*     3.0    21.1    +      -       +      +
    443A  LEU*     3.5    26.0    -      -       +      +
    444A  VAL      3.3     0.2    -      -       -      -
    445A  GLN*     1.3    76.1    -      -       +      +
    447A  ILE*     1.3    59.3    +      -       -      +
    449A  LYS*     3.3     3.5    +      -       -      -
    450A  THR*     2.9    51.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 447 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    273A  PHE*     3.9    31.2    -      -       +      -
    350A  PRO*     3.5    28.5    -      -       +      +
    351A  PHE*     3.9    22.9    -      -       +      -
    354A  ILE*     4.0    24.2    -      -       +      -
    443A  LEU*     3.0    18.8    +      -       +      +
    444A  VAL*     3.5     7.6    -      -       -      +
    446A  ILE*     1.3    76.6    -      -       -      +
    448A  LYS*     1.3    58.1    +      -       -      +
    450A  THR*     4.0     5.2    -      -       -      -
    451A  GLU*     2.8    40.7    +      -       +      +
    454A  ALA*     3.8    24.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 448 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    273A  PHE*     6.4     0.4    -      -       -      -
    444A  VAL*     2.8    20.3    +      -       +      +
    445A  GLN*     3.4    28.3    +      -       -      +
    447A  ILE*     1.3    76.1    -      -       -      +
    449A  LYS*     1.3    67.2    +      -       +      +
    451A  GLU      3.8     9.7    -      -       -      +
    452A  SER*     5.5     0.3    -      -       -      -
    454A  ALA      4.4    12.8    -      -       -      +
    456A  LEU*     5.2    19.7    -      -       +      +
    461A  GLN*     3.7    27.7    +      -       +      +
    465A  ARG*     4.2    18.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 449 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    445A  GLN*     2.9    44.2    +      -       +      +
    446A  ILE*     3.9     4.3    -      -       -      +
    448A  LYS*     1.3    84.1    -      -       +      +
    450A  THR*     1.3    65.4    +      -       +      +
    451A  GLU      3.6     1.4    -      -       -      -
    452A  SER*     5.3     0.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 450 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    350A  PRO*     5.0     3.1    -      -       -      +
    446A  ILE*     2.9    42.1    +      -       +      +
    447A  ILE*     4.0     1.7    +      -       -      -
    449A  LYS*     1.3    79.9    -      -       +      +
    451A  GLU*     1.3    76.3    +      -       -      +
    452A  SER      3.7     3.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 451 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    270A  VAL*     4.9     4.9    -      -       +      -
    348A  ARG*     2.5    34.1    +      -       -      +
    350A  PRO*     3.7    23.7    -      -       -      +
    351A  PHE*     3.4    21.2    -      -       +      -
    447A  ILE*     2.8    27.2    +      -       +      +
    448A  LYS      3.8     9.3    -      -       -      +
    449A  LYS      3.6     0.4    -      -       -      -
    450A  THR*     1.3    86.2    +      -       -      +
    452A  SER*     1.3    63.6    +      -       -      +
    453A  ASP*     3.2     4.0    -      -       +      +
    454A  ALA*     3.1    27.4    +      -       +      +
----------------------------------------------------------
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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
------------------------------------------------------------
  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