Contacts of the helix formed by residues 433 - 457 (chain A) in PDB entry 3N00


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 GLN 433 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    432A  VAL*     1.3    76.5    -      -       -      +
    434A  GLU*     1.3    62.3    +      -       -      +
    435A  ILE      3.1     2.0    -      -       -      +
    436A  TRP*     3.3    23.5    +      -       +      +
    437A  GLU*     3.1    40.7    +      -       -      +
    608A  SER*     5.0     1.9    +      -       -      -
    610A  ARG*     5.1     3.0    -      -       -      +
   2046B  HIS*     3.3    40.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 434 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    432A  VAL*     3.5    15.2    -      -       +      +
    433A  GLN*     1.3    84.2    -      -       -      +
    435A  ILE*     1.3    55.8    +      -       +      +
    437A  GLU*     3.6    13.2    +      -       -      +
    438A  ASP*     3.0    25.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 435 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    432A  VAL      3.4    23.1    -      -       -      +
    433A  GLN      3.1     0.4    -      -       -      -
    434A  GLU*     1.3    78.9    -      -       +      +
    436A  TRP*     1.3    56.2    +      -       -      +
    438A  ASP*     3.3     1.2    +      -       -      +
    439A  PHE*     2.9    30.3    +      -       -      +
    508A  LEU*     4.0    20.0    -      -       +      +
    511A  MET*     3.3    17.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with TRP 436 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    432A  VAL      5.6     0.4    -      -       -      +
    433A  GLN*     3.3    27.1    +      -       +      +
    435A  ILE*     1.3    76.9    -      -       -      +
    437A  GLU*     1.3    56.3    +      -       +      +
    439A  PHE*     3.7     6.0    -      +       -      +
    440A  SER*     2.6    47.1    +      -       -      -
    511A  MET*     3.3    50.5    +      -       +      +
    513A  MET*     6.1     0.2    -      -       +      -
    606A  LEU*     3.1    42.4    +      -       +      -
    607A  LEU*     3.8     7.4    -      -       -      +
    608A  SER*     3.6    26.2    -      -       -      -
   2048B  LEU*     3.3    25.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 437 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    433A  GLN*     3.1    31.4    +      -       -      +
    434A  GLU*     3.9    11.6    -      -       -      +
    436A  TRP*     1.3    75.4    -      -       +      +
    438A  ASP*     1.3    56.3    +      -       -      +
    440A  SER*     3.3     2.4    +      -       -      -
    441A  MET*     3.1    40.9    +      -       +      +
    608A  SER*     3.9    20.5    -      -       -      +
    610A  ARG*     3.2    30.2    +      -       -      +
   2046B  HIS*     2.6    36.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 438 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    434A  GLU      3.0    16.8    +      -       -      -
    435A  ILE*     3.8     2.0    -      -       -      +
    436A  TRP      3.2     0.4    -      -       -      -
    437A  GLU*     1.3    74.6    -      -       -      +
    439A  PHE*     1.3    63.7    +      -       -      +
    441A  MET*     3.6    10.2    +      -       -      +
    442A  SER*     3.3    19.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 439 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    435A  ILE      2.9    17.3    +      -       -      +
    436A  TRP*     3.7     7.6    -      +       -      +
    438A  ASP*     1.3    73.4    -      -       -      +
    440A  SER*     1.3    63.5    +      -       -      +
    442A  SER*     3.1    25.5    +      -       -      -
    443A  PHE*     3.2    47.7    -      +       -      -
    508A  LEU*     5.9     8.1    -      -       +      -
    511A  MET*     4.2    20.9    -      -       +      -
    513A  MET*     4.2    17.7    -      -       +      -
    516A  LEU*     4.4    19.5    -      -       +      -
    517A  LEU*     6.0     5.2    -      -       +      -
    520A  MET*     5.3    13.0    -      -       +      -
    605A  LYS*     6.3     1.6    -      -       +      -
    606A  LEU      5.8     0.4    -      -       -      -
    607A  LEU*     4.2    13.2    -      -       +      -
   2051B  LEU*     5.4     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 440 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    436A  TRP*     2.6    34.2    +      -       -      -
    437A  GLU      3.5     3.4    -      -       -      -
    438A  ASP      3.3     0.2    -      -       -      -
    439A  PHE*     1.3    74.6    -      -       -      +
    441A  MET*     1.3    59.5    +      -       -      +
    442A  SER      3.5     0.3    +      -       -      -
    443A  PHE*     3.5    21.7    +      -       -      +
    607A  LEU*     3.6    13.9    -      -       -      +
    608A  SER      2.9    42.2    +      -       -      -
    609A  PHE*     3.4    23.4    -      -       -      -
   2054B  HIS*     4.2     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 441 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    437A  GLU*     3.1    28.7    +      -       +      +
    438A  ASP*     4.0     7.2    -      -       -      +
    439A  PHE      3.3     0.2    -      -       -      -
    440A  SER*     1.3    73.6    -      -       -      +
    442A  SER*     1.3    64.5    +      -       -      +
    443A  PHE      3.2     1.6    -      -       -      -
    444A  THR*     3.8     7.5    +      -       -      +
    445A  PRO*     3.2    19.6    -      -       -      +
    609A  PHE*     3.7    25.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 442 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    438A  ASP      3.3    12.0    +      -       -      -
    439A  PHE*     3.1    21.5    +      -       -      -
    441A  MET*     1.3    78.9    -      -       -      +
    443A  PHE*     1.3    64.7    +      -       -      +
    445A  PRO*     3.3    19.3    -      -       -      +
    446A  ALA*     3.5    11.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 443 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    439A  PHE*     3.2    70.2    -      +       -      -
    440A  SER      3.5    11.2    -      -       -      +
    441A  MET      3.2     1.4    -      -       -      -
    442A  SER*     1.3    77.0    -      -       -      +
    444A  THR*     1.3    55.1    +      -       -      +
    446A  ALA*     4.1     4.7    -      -       +      -
    447A  VAL*     2.7    44.3    +      -       +      +
    477A  PHE*     5.7     1.1    -      +       -      -
    480A  LEU*     3.9    25.1    -      -       +      -
    481A  MET*     5.7     5.2    -      -       +      -
    516A  LEU*     5.3     0.9    -      -       +      -
    520A  MET*     6.3     1.8    -      -       -      -
    607A  LEU*     3.6    17.5    -      -       +      -
   2051B  LEU*     3.4    37.2    -      -       +      -
   2054B  HIS*     3.9    14.4    -      -       +      -
   2058B  ILE*     4.5     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 444 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    441A  MET*     3.8     7.7    +      -       -      +
    443A  PHE*     1.3    77.3    -      -       -      +
    445A  PRO*     1.3    70.2    -      -       +      +
    447A  VAL*     3.5     2.3    +      -       -      +
    448A  ARG*     3.2    58.9    +      -       -      +
    609A  PHE*     4.8     5.0    -      -       -      -
   2054B  HIS*     2.8    29.0    +      -       +      -
   2058B  ILE*     3.4    20.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 445 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    441A  MET      3.2    17.7    -      -       -      +
    442A  SER*     3.3    15.0    -      -       -      +
    444A  THR*     1.3    92.3    -      -       +      +
    446A  ALA*     1.3    56.9    +      -       -      +
    448A  ARG*     3.2    16.2    +      -       +      +
    449A  GLU*     2.8    40.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 446 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    300A  PHE*     5.2     0.2    -      -       -      -
    442A  SER      3.5    14.0    +      -       -      +
    443A  PHE*     3.3    11.6    +      -       +      +
    444A  THR      3.3     0.6    -      -       -      -
    445A  PRO*     1.3    78.7    -      -       -      +
    447A  VAL*     1.3    63.2    +      -       -      +
    449A  GLU*     3.1    19.0    +      -       -      +
    450A  VAL*     3.0    25.3    +      -       -      +
    480A  LEU*     3.7    24.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 447 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    443A  PHE*     2.7    34.4    +      -       +      +
    446A  ALA*     1.3    71.4    -      -       -      +
    448A  ARG*     1.3    56.6    +      -       -      +
    450A  VAL*     3.2     3.7    +      -       -      +
    451A  VAL*     2.9    33.3    +      -       +      +
    476A  THR*     4.1    17.5    -      -       +      -
    480A  LEU*     4.1    13.0    -      -       +      -
   2054B  HIS*     5.6     0.2    -      -       +      -
   2055B  ILE*     3.9    27.8    -      -       +      +
   2058B  ILE*     3.6    35.4    -      -       +      -
   2059B  ILE*     4.0    22.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 448 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    444A  THR*     3.2    50.6    +      -       -      +
    445A  PRO*     3.6    15.1    -      -       +      +
    446A  ALA      3.2     0.2    -      -       -      -
    447A  VAL*     1.3    73.4    -      -       -      +
    449A  GLU*     1.3    65.4    +      -       -      +
    451A  VAL*     3.4     4.6    +      -       -      +
    452A  GLU*     3.1    23.4    +      -       -      +
   2058B  ILE*     4.1    13.6    -      -       +      +
   2061B  GLN*     6.4     0.6    -      -       -      +
   2062B  ASP*     3.7    27.6    +      -       -      +
   2065B  ARG*     5.6     5.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 449 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    299A  ILE*     3.3    37.0    -      -       +      +
    300A  PHE*     3.8    27.0    -      -       +      -
    445A  PRO*     2.8    24.9    +      -       +      +
    446A  ALA*     3.1    17.6    +      -       -      +
    448A  ARG*     1.3    75.0    -      -       -      +
    450A  VAL*     1.3    59.2    +      -       -      +
    452A  GLU*     3.3     1.6    +      -       -      -
    453A  PHE*     3.0    26.3    +      -       -      +
    483A  ARG*     5.5     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 450 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    300A  PHE*     4.3    15.7    -      -       +      -
    446A  ALA      3.0    18.3    +      -       -      +
    447A  VAL      3.5     7.4    -      -       -      +
    449A  GLU*     1.3    76.2    -      -       -      +
    451A  VAL*     1.3    62.4    +      -       -      +
    453A  PHE*     3.4     4.2    +      -       +      +
    454A  ALA*     2.9    21.8    +      -       -      +
    472A  LEU*     4.0     8.7    -      -       +      -
    476A  THR*     4.0    29.4    -      -       +      +
    479A  VAL*     3.8    34.3    -      -       +      -
    480A  LEU*     3.8    19.7    -      -       +      -
    483A  ARG*     5.2     0.2    -      -       +      -
    545A  LEU*     4.6     8.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 451 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    447A  VAL*     2.9    25.6    +      -       +      +
    448A  ARG*     3.8     4.9    -      -       -      +
    449A  GLU      3.3     0.2    -      -       -      -
    450A  VAL*     1.3    76.9    -      -       +      +
    452A  GLU*     1.3    61.3    +      -       -      +
    454A  ALA*     3.4     3.6    +      -       -      +
    455A  LYS*     3.3    32.4    +      -       +      +
    472A  LEU*     4.2    19.2    -      -       +      +
    476A  THR*     5.5     0.2    -      -       -      +
   2058B  ILE*     5.8     0.2    -      -       +      -
   2059B  ILE*     4.3    27.4    -      -       +      -
   2062B  ASP*     4.0    29.2    -      -       +      +
   2063B  PHE*     3.8    26.0    -      -       +      -
   2065B  ARG*     5.7     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 452 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    299A  ILE*     3.6    23.1    -      -       +      -
    448A  ARG      3.1    17.4    +      -       -      +
    449A  GLU*     3.8     4.0    -      -       -      +
    451A  VAL*     1.3    74.6    -      -       -      +
    453A  PHE*     1.3    65.9    +      -       -      +
    455A  LYS*     3.1    33.1    +      -       -      +
    456A  HIS*     2.9    39.7    +      -       +      -
   2065B  ARG*     4.6     8.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 453 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    292A  VAL*     3.8    11.7    -      -       +      -
    295A  ALA*     4.0     9.4    -      -       +      -
    296A  HIS*     3.7    35.7    -      -       +      -
    299A  ILE*     3.4    11.1    -      -       +      +
    300A  PHE*     3.6    27.1    -      +       +      -
    449A  GLU      3.0    17.7    +      -       -      +
    450A  VAL*     3.5     6.5    -      -       +      +
    452A  GLU*     1.3    75.1    -      -       -      +
    454A  ALA*     1.3    55.4    +      -       -      +
    456A  HIS*     2.7    31.7    +      -       -      +
    457A  ILE*     3.4    16.2    +      -       +      +
    479A  VAL*     5.5     2.2    -      -       +      -
    538A  GLY      3.4    22.9    -      -       -      -
    541A  THR*     3.8    24.0    -      -       +      -
    542A  ALA*     3.8    23.6    -      -       +      -
    545A  LEU*     5.1     5.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 454 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    450A  VAL      2.9    10.6    +      -       -      +
    451A  VAL      3.6     9.4    -      -       -      +
    453A  PHE*     1.3    75.8    -      -       -      +
    455A  LYS*     1.3    63.1    +      -       -      +
    457A  ILE*     3.0    25.1    +      -       -      +
    460A  PHE*     3.2    42.8    -      -       +      +
    472A  LEU*     4.0     7.0    -      -       +      -
    545A  LEU*     3.4    26.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 455 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    451A  VAL*     3.3    30.0    -      -       +      +
    452A  GLU*     3.1    27.5    +      -       -      +
    453A  PHE      3.0     0.8    +      -       -      -
    454A  ALA*     1.3    77.2    -      -       +      +
    456A  HIS*     1.3    64.0    +      -       +      +
    457A  ILE      3.7     2.8    +      -       -      +
    460A  PHE*     4.5     3.1    -      -       +      -
    461A  ARG*     3.6    65.7    -      -       -      +
   2062B  ASP*     4.3     4.4    +      -       -      -
   2063B  PHE*     5.0     6.7    -      -       +      -
   2065B  ARG*     4.0    26.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 456 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    291A  GLN*     3.2    33.1    +      -       +      +
    292A  VAL*     5.1     0.8    +      -       -      -
    295A  ALA*     3.4    33.6    -      -       +      +
    298A  GLU*     5.0     8.9    +      -       -      -
    299A  ILE*     3.7    13.1    -      -       +      +
    452A  GLU*     2.9    44.3    +      -       +      -
    453A  PHE      2.7    12.9    +      -       -      +
    455A  LYS*     1.3    75.0    -      -       +      +
    457A  ILE*     1.3    61.3    +      -       -      -
    458A  PRO*     3.3     3.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 457 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    291A  GLN*     4.8     0.2    -      -       -      -
    292A  VAL*     4.7     4.0    -      -       +      -
    453A  PHE*     3.6    22.0    -      -       +      +
    454A  ALA*     3.0    28.5    +      -       +      +
    455A  LYS      4.4     3.3    -      -       -      +
    456A  HIS*     1.3    77.8    -      -       -      +
    458A  PRO*     1.4    81.6    -      -       +      +
    459A  GLY      3.0     0.7    +      -       -      -
    460A  PHE*     2.9    27.9    +      -       +      +
    461A  ARG      4.5     1.0    +      -       -      -
    542A  ALA*     3.8    28.5    -      -       +      +
    545A  LEU*     4.1    16.8    -      -       +      -
    546A  VAL*     4.7     7.0    -      -       +      -
    562A  LEU*     4.7     3.6    -      -       +      -
    566A  LEU*     4.0    30.3    -      -       +      -
----------------------------------------------------------
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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