Contacts of the helix formed by residues 634 - 663 (chain A) in PDB entry 1N54


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 ARG 634 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    447A  LYS*     5.0     2.0    -      -       -      +
    450A  ARG*     5.8     7.1    -      -       -      +
    451A  GLU*     3.1    16.1    +      -       -      +
    454A  GLU*     3.0    28.4    +      -       -      -
    595A  ARG      5.7     2.0    +      -       -      -
    598A  PRO*     3.8    18.2    -      -       -      +
    630A  ARG      4.4     4.0    -      -       -      -
    631A  ASP*     2.5    50.3    +      -       -      +
    633A  THR*     1.3    78.0    -      -       -      +
    635A  LEU*     1.3    66.4    +      -       -      +
    636A  PHE*     3.4    28.3    -      -       +      -
    637A  VAL*     3.1    22.2    +      -       -      +
    638A  TRP*     3.7     3.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 635 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    407A  THR*     6.0     0.4    -      -       +      -
    411A  ASP*     3.2    42.3    -      -       +      +
    414A  ILE*     4.2    31.0    -      -       +      -
    415A  ASN*     4.7     3.8    -      -       -      +
    447A  LYS*     4.8     5.4    -      -       -      +
    451A  GLU*     3.0    34.4    +      -       +      +
    454A  GLU*     5.4     0.7    -      -       -      +
    455A  LYS*     4.1    26.0    -      -       +      +
    633A  THR      4.9     0.4    -      -       -      +
    634A  ARG*     1.3    66.8    -      -       -      +
    636A  PHE*     1.3    70.1    +      -       -      +
    637A  VAL      2.8     1.6    +      -       -      -
    638A  TRP*     3.0    15.9    +      -       -      +
    639A  GLU*     3.1    12.0    +      -       +      +
    746A  ARG*     3.6    15.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 636 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    451A  GLU*     4.8     0.8    +      -       -      -
    454A  GLU*     4.4     5.0    +      -       -      +
    458A  ARG*     4.3    11.6    -      -       -      +
    591A  PHE*     5.1    10.3    -      +       -      -
    598A  PRO*     3.7    32.5    -      -       +      -
    601A  ILE*     4.3    20.2    -      -       +      -
    602A  ALA*     5.8     2.5    -      -       +      -
    622A  TRP*     5.6     4.3    -      +       -      -
    628A  LEU*     6.4     2.0    -      -       +      -
    631A  ASP*     4.1    12.6    -      -       +      -
    634A  ARG*     3.4    45.5    -      -       +      -
    635A  LEU*     1.3    77.7    -      -       -      +
    637A  VAL*     1.3   103.3    +      -       +      +
    639A  GLU*     3.0    18.6    +      -       -      +
    640A  ILE*     3.0    40.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 637 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    623A  ILE*     3.7    39.1    -      -       +      +
    628A  LEU*     5.0    11.0    -      -       +      +
    631A  ASP*     3.3    29.8    -      -       +      +
    632A  PHE*     4.5     7.2    -      -       +      +
    634A  ARG      3.2    10.3    -      -       -      +
    635A  LEU      2.8     1.6    +      -       -      -
    636A  PHE*     1.3   115.7    -      -       +      +
    638A  TRP*     1.3    73.7    -      -       +      +
    640A  ILE*     3.1    14.5    +      -       -      +
    641A  LEU      3.2     8.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with TRP 638 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    623A  ILE*     4.8     4.0    -      -       +      -
    624A  PHE*     4.2     4.3    -      +       -      -
    632A  PHE*     2.8    62.8    +      +       -      -
    633A  THR*     4.2     3.6    -      -       -      +
    634A  ARG      3.7    13.2    +      -       -      -
    635A  LEU      3.0     5.0    +      -       -      +
    637A  VAL*     1.3    73.8    -      -       +      +
    639A  GLU*     1.3    56.4    +      -       -      +
    641A  LEU*     3.5    27.7    -      -       +      +
    642A  HIS*     2.8    50.3    +      -       +      -
    717A  PHE*     3.5    39.0    -      +       -      -
    742A  ASN*     6.1     1.0    -      -       +      +
    743A  CYS*     5.4     2.0    -      -       -      -
    746A  ARG*     3.2    64.0    -      -       +      +
    750A  ILE*     5.2     6.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 639 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    455A  LYS*     3.2    27.7    +      -       -      +
    458A  ARG*     3.4    18.7    +      -       -      -
    602A  ALA*     4.2     8.8    -      -       -      +
    635A  LEU*     3.1    12.8    +      -       +      +
    636A  PHE*     3.0    21.7    +      -       -      +
    638A  TRP*     1.3    76.7    -      -       -      +
    640A  ILE*     1.3    55.3    +      -       -      +
    642A  HIS*     3.2     8.2    +      -       -      +
    643A  SER*     2.8    29.8    +      -       -      -
    646A  ARG*     5.5     0.5    +      -       -      -
   1555B  GOL      2.9    35.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 640 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    601A  ILE*     4.1     7.9    -      -       +      +
    602A  ALA*     3.7    41.7    -      -       +      +
    605A  VAL*     3.9    27.1    -      -       +      -
    619A  VAL*     4.2     4.0    -      -       +      -
    622A  TRP*     4.1    26.9    -      -       +      -
    623A  ILE*     4.5     1.6    -      -       +      -
    636A  PHE*     3.0    32.6    +      -       +      +
    637A  VAL*     3.3     8.3    -      -       -      +
    639A  GLU*     1.3    73.6    -      -       +      +
    641A  LEU*     1.3    69.1    +      -       -      +
    643A  SER*     2.6    23.6    +      -       -      -
    644A  THR*     2.8    18.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 641 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    619A  VAL*     5.0     1.6    -      -       +      +
    620A  ALA*     5.0    10.3    -      -       -      -
    623A  ILE*     4.0    30.2    -      -       +      +
    624A  PHE*     4.0    12.3    -      -       +      -
    637A  VAL      3.2     4.4    +      -       -      +
    638A  TRP*     3.2    45.3    +      -       +      +
    640A  ILE*     1.3    79.6    -      -       -      +
    642A  HIS*     1.3    60.2    +      -       +      +
    644A  THR*     3.4    11.2    -      -       +      -
    645A  ILE*     2.8    47.4    +      -       +      +
    709A  LEU*     5.3     3.1    -      -       +      -
    713A  ILE*     4.3    23.3    -      -       +      -
    750A  ILE*     5.2     4.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 642 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    638A  TRP*     2.8    40.4    +      -       +      +
    639A  GLU*     3.6     6.5    -      -       -      +
    640A  ILE      2.7     2.8    +      -       -      -
    641A  LEU*     1.3    70.3    -      -       +      +
    643A  SER*     1.3    66.9    +      -       -      +
    644A  THR      3.1     1.3    -      -       -      -
    645A  ILE*     2.9     9.0    +      -       +      +
    646A  ARG*     2.7    40.7    +      -       -      +
    746A  ARG*     5.2     0.2    -      -       -      -
    749A  GLN*     3.5    34.3    +      -       +      -
    750A  ILE*     3.5    29.7    -      -       +      +
    753A  GLN*     3.6    27.6    +      -       -      +
    754A  HIS*     3.8    14.2    +      +       -      +
----------------------------------------------------------
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Residues in contact with SER 643 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    606A  ASP*     3.7     8.2    +      -       -      +
    639A  GLU*     2.8    14.1    +      -       -      -
    640A  ILE*     2.6    19.7    +      -       -      -
    642A  HIS*     1.3    74.1    -      -       -      +
    644A  THR*     1.3    63.7    +      -       -      -
    646A  ARG*     3.0    19.2    +      -       -      +
    647A  LYS*     2.4    53.7    +      -       -      +
     65B  ASP*     4.3     7.5    +      -       -      -
   1555B  GOL      5.5     3.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 644 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    605A  VAL*     4.6     1.6    -      -       -      +
    609A  ILE*     3.7    24.5    -      -       +      +
    616A  CYS*     3.8    27.6    -      -       +      +
    619A  VAL*     3.5    28.5    -      -       +      +
    640A  ILE*     2.8    16.6    +      -       -      +
    641A  LEU*     3.4    14.1    -      -       +      -
    643A  SER*     1.3    77.3    -      -       -      +
    645A  ILE*     1.3    61.6    +      -       +      +
    647A  LYS*     3.7    13.6    +      -       -      +
    648A  MET*     3.3    19.6    +      -       -      +
    709A  LEU*     5.1     4.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 645 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    641A  LEU*     2.8    36.8    -      -       +      +
    642A  HIS*     2.9    14.9    +      -       +      +
    644A  THR*     1.3    76.7    -      -       -      +
    646A  ARG*     1.3    53.0    +      -       -      +
    648A  MET*     2.9     8.7    +      -       -      +
    649A  ASN*     2.6    36.9    +      -       -      +
    709A  LEU*     4.0    17.0    -      -       +      -
    710A  PHE*     3.9    19.3    -      -       +      -
    713A  ILE*     3.9    20.6    -      -       +      -
    750A  ILE*     5.0     5.8    -      -       +      -
    754A  HIS*     3.4    39.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 646 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    639A  GLU      5.5     0.6    +      -       -      -
    642A  HIS*     2.7    35.4    +      -       -      +
    643A  SER*     3.6    17.6    +      -       -      +
    645A  ILE*     1.3    70.9    -      -       -      +
    647A  LYS*     1.3    53.2    +      -       +      +
    649A  ASN*     2.7    13.9    +      -       +      +
    650A  LYS*     2.6    53.1    +      -       +      +
    753A  GLN*     5.2     4.6    +      -       -      -
    754A  HIS*     4.6    13.5    -      -       +      -
   1558A  GOL      3.8    39.3    +      -       -      -
     65B  ASP*     3.6    28.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 647 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    605A  VAL      5.6     0.2    -      -       -      -
    606A  ASP*     3.0    38.0    +      -       -      +
    609A  ILE*     5.0    17.5    -      -       +      -
    610A  ARG*     3.8    39.9    -      -       +      +
    643A  SER*     2.4    55.8    +      -       -      +
    644A  THR*     3.7    12.0    -      -       -      +
    646A  ARG*     1.3    77.4    -      -       +      +
    648A  MET*     1.3    60.1    +      -       -      +
    650A  LYS*     3.9     8.4    -      -       -      +
    651A  HIS*     3.3    21.8    +      -       -      +
     65B  ASP*     4.6     4.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 648 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    616A  CYS*     3.9    20.2    -      -       -      -
    644A  THR      3.3    12.7    +      -       -      +
    645A  ILE*     2.9    12.0    +      -       -      +
    647A  LYS*     1.3    77.6    -      -       -      +
    649A  ASN*     1.3    66.7    +      -       -      +
    651A  HIS*     3.1    37.0    +      -       +      +
    652A  VAL*     3.1    16.1    +      -       +      +
    702A  ALA      3.4    24.0    -      -       -      +
    705A  GLU*     3.7    24.0    -      -       -      +
    706A  GLN*     3.9    31.4    -      -       +      -
    709A  LEU*     4.2    13.5    -      -       +      -
    710A  PHE*     5.8     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 649 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    645A  ILE*     2.6    20.2    +      -       -      +
    646A  ARG*     2.7    11.7    +      -       +      +
    648A  MET*     1.3    77.1    -      -       -      +
    650A  LYS*     1.3    62.2    +      -       +      +
    652A  VAL*     3.6     2.9    +      -       -      +
    653A  LEU*     3.5    27.0    +      -       +      +
    706A  GLN*     3.4    23.0    +      -       -      +
    710A  PHE*     4.2    15.2    -      -       -      -
    754A  HIS*     3.1    33.6    +      -       -      -
    757A  ILE*     4.1    23.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 650 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    646A  ARG*     2.6    35.6    +      -       +      +
    647A  LYS*     4.2     7.2    -      -       -      +
    649A  ASN*     1.3    74.0    -      -       +      +
    651A  HIS*     1.3    63.9    +      -       -      +
    653A  LEU*     3.2    15.0    +      -       +      +
    654A  LYS*     2.9    24.1    +      -       -      +
   1558A  GOL      4.9     9.9    +      -       -      -
     65B  ASP*     5.6     4.9    +      -       -      +
     89B  TYR*     6.4     1.8    -      -       -      -
     90B  SER*     5.0    12.1    -      -       -      -
     93B  ASP*     5.0    14.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 651 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    647A  LYS      3.3    13.4    +      -       -      +
    648A  MET*     3.1    30.8    +      -       +      +
    650A  LYS*     1.3    77.1    -      -       -      +
    652A  VAL*     1.3    65.6    +      -       -      +
    654A  LYS*     3.2    19.0    +      -       +      +
    655A  ILE*     3.2    40.7    +      -       +      +
    698A  LYS*     4.5    11.7    +      -       +      -
    702A  ALA*     4.1    13.9    -      -       +      +
    705A  GLU*     4.9     5.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 652 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    648A  MET*     3.1    15.4    +      -       +      +
    649A  ASN      3.9     4.3    -      -       -      +
    651A  HIS*     1.3    79.2    -      -       -      +
    653A  LEU*     1.3    64.2    +      -       +      +
    655A  ILE*     3.1     4.0    +      -       -      +
    656A  GLN*     3.0    40.8    +      -       +      +
    699A  VAL*     5.6     1.7    -      -       +      +
    702A  ALA*     3.7    28.5    -      -       +      +
    703A  GLN*     3.9    23.6    -      -       +      +
    706A  GLN*     3.2    37.2    -      -       -      +
    757A  ILE*     6.1     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 653 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    649A  ASN*     3.5    16.5    +      -       +      +
    650A  LYS*     3.2    17.6    +      -       +      +
    652A  VAL*     1.3    78.5    -      -       +      +
    654A  LYS*     1.3    62.2    +      -       -      +
    656A  GLN*     3.0    25.1    +      -       +      +
    657A  LYS*     3.0    22.0    +      -       -      +
    757A  ILE*     6.3     2.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 654 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    650A  LYS      2.9    12.9    +      -       -      +
    651A  HIS*     3.2    15.5    +      -       +      +
    653A  LEU*     1.3    76.5    -      -       -      +
    655A  ILE*     1.3    56.5    +      -       +      +
    657A  LYS*     2.9    33.4    +      -       -      +
    658A  GLU*     2.8    57.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 655 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    651A  HIS*     3.5    37.2    -      -       +      +
    652A  VAL      3.1     7.3    +      -       -      +
    654A  LYS*     1.3    78.4    -      -       +      +
    656A  GLN*     1.3    60.1    +      -       -      +
    658A  GLU*     3.9    11.1    -      -       -      +
    659A  LEU*     3.3    21.5    +      -       -      +
    695A  LEU*     4.1    16.8    -      -       +      +
    698A  LYS*     3.8    31.9    -      -       +      +
    699A  VAL*     3.5    33.6    -      -       +      +
    702A  ALA*     3.8    20.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 656 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    652A  VAL*     3.0    28.9    +      -       +      +
    653A  LEU*     3.1    42.1    +      -       +      +
    654A  LYS      2.9     1.0    -      -       -      -
    655A  ILE*     1.3    77.6    -      -       -      +
    657A  LYS*     1.3    59.7    +      -       -      +
    659A  LEU*     3.6     6.0    +      -       -      +
    660A  GLU*     3.0    27.9    +      -       -      +
    699A  VAL*     4.8    14.1    -      -       +      +
    703A  GLN*     5.0     8.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 657 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    653A  LEU      3.0     8.3    +      -       -      +
    654A  LYS*     2.9    42.6    +      -       -      +
    656A  GLN*     1.3    75.4    -      -       -      +
    658A  GLU*     1.3    72.7    +      -       -      +
    659A  LEU      3.1     2.0    -      -       -      -
    660A  GLU*     3.7     7.5    -      -       -      +
    661A  GLU*     3.0    55.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 658 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    654A  LYS*     2.8    41.9    +      -       +      +
    655A  ILE*     4.2    10.2    -      -       -      +
    656A  GLN      3.4     0.2    -      -       -      -
    657A  LYS*     1.3    93.7    +      -       -      +
    659A  LEU*     1.3    56.4    +      -       -      +
    661A  GLU*     4.2     5.9    -      -       -      +
    662A  ALA*     3.2    25.3    +      -       -      +
    691A  GLN*     5.0     2.8    +      -       -      -
    694A  ARG*     5.8     0.2    +      -       -      -
    695A  LEU*     3.5    32.1    -      -       +      +
    698A  LYS*     5.9     0.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 659 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    655A  ILE      3.3    16.7    +      -       -      +
    656A  GLN*     4.0     5.6    -      -       -      +
    657A  LYS      3.1     0.2    -      -       -      -
    658A  GLU*     1.3    78.1    -      -       -      +
    660A  GLU*     1.3    58.3    +      -       -      +
    661A  GLU      3.2     2.0    -      -       -      -
    662A  ALA*     3.6     3.4    -      -       -      +
    663A  LYS*     3.1    51.5    +      -       +      +
    692A  ILE*     3.6    23.6    -      -       +      +
    695A  LEU*     3.4    13.0    -      -       +      +
    696A  GLN*     3.3    42.8    -      -       -      +
    699A  VAL*     3.9    17.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 660 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    656A  GLN      3.0    19.0    +      -       -      +
    657A  LYS*     3.3     9.4    +      -       -      +
    659A  LEU*     1.3    77.3    -      -       -      +
    661A  GLU*     1.3    60.7    +      -       +      +
    663A  LYS*     4.3     5.9    +      -       -      +
    664A  GLU*     3.0    41.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 661 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    657A  LYS*     3.0    50.0    +      -       +      +
    658A  GLU*     4.2     5.4    -      -       -      +
    660A  GLU*     1.3    79.0    -      -       +      +
    662A  ALA*     1.3    69.5    +      -       -      +
    664A  GLU*     3.3    21.3    +      -       -      +
    665A  LYS*     4.0    11.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 662 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    658A  GLU      3.2    18.5    +      -       -      +
    659A  LEU*     3.4     9.4    +      -       -      +
    661A  GLU*     1.3    80.2    -      -       -      +
    663A  LYS*     1.3    65.7    +      -       -      +
    664A  GLU      2.9     1.6    +      -       -      -
    665A  LYS*     2.9    27.0    +      -       -      +
    689A  GLU*     4.3     1.4    -      -       -      +
    691A  GLN*     5.1     6.3    -      -       +      -
    692A  ILE*     3.8    25.7    -      -       +      +
    695A  LEU*     4.3     9.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 663 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    659A  LEU*     3.1    49.1    +      -       +      +
    660A  GLU*     4.6     5.4    -      -       -      +
    661A  GLU      3.4     0.2    -      -       -      -
    662A  ALA*     1.3    78.4    -      -       -      +
    664A  GLU*     1.3    63.9    +      -       -      +
    665A  LYS      2.7    21.3    +      -       -      +
    689A  GLU*     4.4     0.3    -      -       -      +
    692A  ILE*     3.9    27.5    -      -       +      +
    696A  GLN*     3.7    13.7    -      -       -      +
----------------------------------------------------------
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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