Contacts of the helix formed by residues 44 - 73 (chain X) in PDB entry 2ZG8


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 LEU 44 (chain X).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37X  PHE*     2.9    31.2    +      -       +      +
     42X  VAL*     3.7     8.7    -      -       +      +
     43X  ALA*     1.3    78.8    -      -       -      +
     45X  GLU*     1.3    65.4    +      -       -      +
     46X  GLY      3.3     2.5    -      -       -      -
     47X  VAL*     2.9    25.7    +      -       +      +
     48X  CYS      3.0     9.7    +      -       -      -
     92X  THR*     3.7    23.8    -      -       -      +
    163X  GLU*     3.8    24.0    -      -       +      +
    164X  TYR*     4.6    13.2    -      -       +      +
    167X  GLU*     3.9    26.9    -      -       +      +
    184X  EDO      4.2     9.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 45 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37X  PHE      5.1     0.7    -      -       -      -
     38X  ASP*     4.2     5.3    -      -       -      +
     43X  ALA      3.8     3.0    +      -       -      -
     44X  LEU*     1.3    73.6    -      -       -      +
     46X  GLY*     1.3    58.5    +      -       -      +
     48X  CYS*     3.1    18.1    +      -       -      +
     49X  ALA*     2.8    30.1    +      -       +      +
    167X  GLU*     3.5     7.1    +      -       -      +
    168X  ARG*     5.1     3.8    -      -       -      +
    172X  LYS*     4.9    11.7    -      -       +      -
    181X  PLL      3.5    24.6    -      -       -      +
    183X  PLL      3.5    27.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 46 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44X  LEU      3.3     0.2    -      -       -      -
     45X  GLU*     1.3    73.0    -      -       -      +
     47X  VAL*     1.3    56.7    +      -       -      +
     49X  ALA*     3.6     6.1    +      -       -      +
     50X  PHE*     3.0    26.7    +      -       -      +
    167X  GLU*     2.8    26.5    +      -       -      -
    171X  LEU*     3.8    22.6    -      -       -      +
    172X  LYS*     4.0    18.7    -      -       -      +
    173X  HIS*     5.9     0.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 47 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37X  PHE*     3.5    27.4    -      -       +      -
     44X  LEU*     2.9    24.1    +      -       +      +
     46X  GLY*     1.3    75.6    -      -       -      +
     48X  CYS*     1.3    64.9    +      -       -      +
     50X  PHE*     3.2     3.6    +      -       +      +
     51X  PHE*     3.1    50.5    +      -       +      -
     92X  THR*     4.2    23.1    -      -       +      +
     96X  MET*     5.7     0.9    -      -       +      -
    166X  PHE*     5.5     0.4    -      -       +      -
    167X  GLU*     4.2     9.2    -      -       +      -
    171X  LEU*     3.6    24.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 48 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34X  GLY*     3.5    34.3    -      -       -      +
     35X  PHE*     5.7     1.1    -      -       -      -
     37X  PHE*     3.7     2.5    -      -       -      +
     38X  ASP*     4.1     9.6    -      -       -      +
     44X  LEU      3.0     9.6    +      -       -      +
     45X  GLU*     3.4    31.9    -      -       -      +
     47X  VAL*     1.3    77.3    -      -       -      +
     49X  ALA*     1.3    57.7    +      -       -      +
     51X  PHE      3.4     0.2    +      -       -      -
     52X  ARG*     2.9    31.0    +      -       -      +
    181X  PLL      3.6    26.7    -      -       -      -
    183X  PLL      3.9     9.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 49 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45X  GLU*     2.8    22.1    +      -       +      +
     46X  GLY*     3.9     6.5    -      -       -      +
     48X  CYS*     1.3    73.7    -      -       -      +
     50X  PHE*     1.3    64.1    +      -       -      +
     52X  ARG*     3.4     2.9    +      -       -      +
     53X  GLU*     2.9    26.3    +      -       -      +
    173X  HIS*     4.1    25.9    +      -       +      +
    183X  PLL      3.6    29.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 50 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46X  GLY      3.0    18.8    +      -       -      +
     47X  VAL*     3.2     7.6    +      -       +      +
     49X  ALA*     1.3    77.7    -      -       -      +
     51X  PHE*     1.3    95.8    +      +       -      +
     53X  GLU*     3.4     6.7    +      -       +      +
     54X  LEU*     3.2    42.8    +      -       +      +
     96X  MET*     3.8    23.6    -      -       +      -
    140X  LEU*     5.2     3.1    -      -       +      -
    143X  LYS*     4.5    13.5    -      -       +      -
    144X  MET*     4.3    13.2    -      -       +      -
    147X  HIS*     3.7    28.0    -      +       -      -
    171X  LEU*     4.1    20.2    -      -       +      -
    173X  HIS*     5.5     1.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 51 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30X  TYR*     3.4    36.3    -      +       +      +
     33X  LEU*     3.7    17.9    -      -       +      -
     34X  GLY*     3.7    18.6    -      -       -      +
     37X  PHE*     3.9    17.0    -      +       -      -
     47X  VAL*     3.1    42.7    +      -       +      +
     50X  PHE*     1.3   103.7    -      +       -      +
     52X  ARG*     1.3    60.2    +      -       -      +
     54X  LEU*     3.1     3.6    +      -       +      +
     55X  ALA*     2.9    24.3    +      -       -      +
     95X  ALA*     3.9    27.1    -      -       +      -
     96X  MET*     4.3     8.7    -      -       +      -
     99X  ALA*     3.9    21.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 52 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30X  TYR      4.5     3.1    +      -       -      -
     31X  LEU*     5.8     7.2    -      -       +      +
     34X  GLY*     4.6     3.5    -      -       -      -
     35X  PHE*     6.0     4.9    -      -       +      -
     48X  CYS*     2.9    19.4    +      -       -      +
     49X  ALA      3.8     3.7    +      -       -      +
     51X  PHE*     1.3    77.0    -      -       -      +
     53X  GLU*     1.3    87.0    +      -       -      +
     55X  ALA*     3.2     7.6    +      -       +      +
     56X  GLU*     3.0    75.9    +      -       -      +
    183X  PLL      2.9    40.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 53 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49X  ALA      2.9    18.7    +      -       -      +
     50X  PHE*     3.6     7.6    -      -       -      +
     52X  ARG*     1.3    93.4    +      -       -      +
     54X  LEU*     1.3    59.7    +      -       +      +
     56X  GLU*     3.2     9.2    +      -       -      +
     57X  GLU*     3.0    58.4    +      -       -      +
     60X  GLU*     5.6     0.2    -      -       -      +
    173X  HIS*     6.3     1.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 54 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30X  TYR*     3.7    29.2    -      -       +      -
     50X  PHE*     3.2    36.0    +      -       +      +
     51X  PHE*     3.1    10.6    +      -       +      +
     53X  GLU*     1.3    77.4    -      -       +      +
     55X  ALA*     1.3    59.4    +      -       -      +
     57X  GLU*     3.1    27.9    +      -       +      +
     58X  LYS*     2.9    35.9    +      -       -      +
    140X  LEU*     3.7    29.6    -      -       +      -
    144X  MET*     3.5    26.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 55 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27X  SER*     2.7    44.8    +      -       -      +
     30X  TYR*     3.6    12.1    -      -       +      +
     31X  LEU*     3.8    11.0    -      -       +      +
     51X  PHE      2.9    12.6    +      -       -      +
     52X  ARG*     3.4    12.6    -      -       -      +
     54X  LEU*     1.3    77.2    -      -       -      +
     56X  GLU*     1.3    68.3    +      -       -      +
     58X  LYS      3.5     0.2    +      -       -      -
     59X  ARG*     3.1    11.8    +      -       -      +
    189X  EDO      4.1     8.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 56 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31X  LEU*     5.7     2.6    -      -       -      +
     52X  ARG*     3.0    71.0    +      -       -      +
     53X  GLU*     3.6    10.1    -      -       -      +
     55X  ALA*     1.3    82.8    -      -       -      +
     57X  GLU*     1.3    57.4    +      -       -      +
     59X  ARG*     3.2    27.6    +      -       -      +
     60X  GLU*     2.9    40.3    +      -       -      +
    189X  EDO      5.4     6.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 57 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23X  TYR*     5.5     0.3    -      -       -      -
     53X  GLU*     3.0    45.5    +      -       -      +
     54X  LEU*     3.1    30.5    +      -       +      +
     56X  GLU*     1.3    76.3    -      -       -      +
     58X  LYS*     1.3    63.3    +      -       +      +
     60X  GLU*     3.3    16.5    +      -       -      +
     61X  GLY*     3.0    24.1    +      -       -      -
    140X  LEU*     4.6     9.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 58 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23X  TYR*     3.6    45.3    -      -       +      +
     26X  ALA*     3.9     5.8    -      -       +      -
     27X  SER*     3.7    10.3    -      -       -      +
     30X  TYR*     3.9    17.7    -      -       +      -
     54X  LEU*     2.9    22.9    +      -       -      +
     57X  GLU*     1.3    78.1    +      -       -      +
     59X  ARG*     1.3    65.4    +      -       -      +
     61X  GLY      3.2     1.0    +      -       -      -
     62X  ALA*     3.0    18.9    +      -       -      +
    103X  GLU*     2.7    43.5    +      -       -      -
    106X  LEU*     3.6    18.6    -      -       +      +
    137X  GLU*     2.8    18.4    +      -       -      -
    140X  LEU*     3.9    10.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 59 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24X  LEU*     4.6    14.6    -      -       +      -
     27X  SER*     3.7    13.1    +      -       -      +
     55X  ALA      3.1    14.9    +      -       -      +
     56X  GLU*     3.5    31.3    +      -       -      +
     58X  LYS*     1.3    75.4    -      -       -      +
     60X  GLU*     1.3    97.0    +      -       -      +
     62X  ALA*     3.1     8.8    +      -       -      +
     63X  GLU*     2.8    75.1    +      -       +      +
    189X  EDO      4.7    14.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 60 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53X  GLU*     5.6     0.5    -      -       -      +
     56X  GLU*     2.9    27.1    +      -       -      +
     57X  GLU*     3.5    16.9    -      -       -      +
     58X  LYS      3.2     0.2    -      -       -      -
     59X  ARG*     1.3   105.2    +      -       -      +
     61X  GLY*     1.3    54.8    +      -       -      +
     63X  GLU*     3.2     7.4    +      -       -      +
     64X  ARG*     2.9    39.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 61 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23X  TYR*     4.1     8.7    -      -       -      -
     57X  GLU      3.0    14.1    +      -       -      -
     58X  LYS      3.2     3.6    +      -       -      -
     59X  ARG      3.2     0.4    -      -       -      -
     60X  GLU*     1.3    76.9    -      -       -      +
     62X  ALA*     1.3    60.9    +      -       -      +
     64X  ARG*     3.2     4.8    +      -       -      -
     65X  LEU*     3.0    21.0    +      -       -      +
    133X  PHE*     3.4    32.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 62 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20X  VAL*     4.1    11.1    -      -       +      +
     23X  TYR*     4.0    14.6    -      -       +      +
     24X  LEU*     3.6    35.4    -      -       +      -
     58X  LYS      3.0    10.6    +      -       -      +
     59X  ARG      3.1     8.0    +      -       -      +
     61X  GLY*     1.3    75.6    -      -       -      +
     63X  GLU*     1.3    58.7    +      -       +      +
     65X  LEU*     3.3     9.7    +      -       -      +
     66X  LEU*     3.0    35.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 63 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24X  LEU*     6.3     0.4    -      -       +      -
     59X  ARG*     2.8    61.2    +      -       +      +
     60X  GLU*     3.2     9.8    +      -       -      +
     62X  ALA*     1.3    78.2    -      -       +      +
     64X  ARG*     1.3    56.3    +      -       -      +
     66X  LEU*     3.2    14.0    +      -       +      +
     67X  LYS*     2.9    29.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 64 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60X  GLU*     2.9    20.7    +      -       -      +
     61X  GLY*     3.5     9.6    -      -       -      +
     63X  GLU*     1.3    75.0    -      -       -      +
     65X  LEU*     1.3    63.4    +      -       -      +
     67X  LYS*     3.3    10.2    +      -       +      +
     68X  MET*     3.0    23.0    +      -       -      +
    128X  PHE*     3.8    14.7    -      -       +      -
    132X  HIS*     3.2    58.6    +      -       +      +
    133X  PHE*     3.9     6.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 65 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16X  VAL*     4.0    14.8    -      -       +      +
     19X  LEU*     3.8    43.1    -      -       +      -
     20X  VAL*     3.7    20.9    -      -       +      +
     23X  TYR*     4.2    11.0    -      -       +      -
     61X  GLY      3.0    21.6    +      -       -      +
     62X  ALA*     3.5     7.6    -      -       -      +
     64X  ARG*     1.3    77.6    -      -       -      +
     66X  LEU*     1.3    55.8    +      -       -      +
     68X  MET*     3.3    11.6    +      -       +      +
     69X  GLN*     2.8    29.2    +      -       -      +
    128X  PHE*     3.7    26.0    -      -       +      -
    129X  LEU*     4.4     5.2    -      -       +      -
    133X  PHE*     3.6    17.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 66 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17X  ASN*     4.9     4.7    -      -       -      +
     20X  VAL*     3.9    22.9    -      -       +      -
     24X  LEU*     5.6     1.8    -      -       +      -
     62X  ALA*     3.0    25.6    +      -       +      +
     63X  GLU*     3.2    12.5    +      -       +      +
     65X  LEU*     1.3    72.7    -      -       -      +
     67X  LYS*     1.3    65.3    +      -       -      +
     69X  GLN*     3.3     6.8    +      -       +      +
     70X  ASN*     3.1    26.8    +      -       -      +
     76X  ALA*     3.7    23.1    -      -       +      +
     78X  PHE*     3.7    42.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 67 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63X  GLU      2.9    15.9    +      -       -      +
     64X  ARG*     3.6     9.9    -      -       +      +
     65X  LEU      3.3     0.2    -      -       -      -
     66X  LEU*     1.3    77.6    -      -       -      +
     68X  MET*     1.3    56.9    +      -       -      +
     70X  ASN*     3.3     8.4    +      -       -      +
     71X  GLN*     2.9    55.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 68 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8X  TYR*     4.0    11.0    -      -       -      -
     16X  VAL*     3.7    37.0    -      -       +      -
     64X  ARG      3.0    17.0    +      -       -      +
     65X  LEU*     3.6     4.9    -      -       +      +
     67X  LYS*     1.3    74.4    -      -       -      +
     69X  GLN*     1.3    67.4    +      -       -      +
     71X  GLN*     3.0    17.7    +      -       -      +
     72X  ARG*     2.9    40.4    +      -       +      +
    124X  HIS*     4.5     9.9    -      -       +      -
    125X  LEU*     3.9    16.2    -      -       +      -
    128X  PHE*     3.5    46.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 69 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8X  TYR*     2.6    46.4    +      -       -      -
     13X  GLU*     3.1    19.5    -      -       -      +
     16X  VAL*     3.8     9.7    -      -       +      +
     17X  ASN*     3.0    26.5    +      -       -      +
     65X  LEU      2.8    17.8    +      -       -      +
     66X  LEU*     3.4    14.8    -      -       +      +
     68X  MET*     1.3    79.1    -      -       -      +
     70X  ASN*     1.3    60.9    +      -       -      +
     72X  ARG*     3.3     1.7    +      -       -      +
     73X  GLY      3.2     3.1    +      -       -      -
     74X  GLY*     2.9    43.6    +      -       -      +
     75X  ARG      3.8     8.7    -      -       -      +
     76X  ALA*     3.9    15.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 70 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4X  ILE*     3.8     8.0    -      -       -      +
     66X  LEU      3.1    12.9    +      -       -      +
     67X  LYS*     3.7     8.6    -      -       -      +
     69X  GLN*     1.3    77.5    -      -       -      +
     71X  GLN*     1.3    66.8    +      -       +      +
     73X  GLY*     3.1    12.5    +      -       -      -
     74X  GLY      3.6    14.4    -      -       -      +
     75X  ARG*     3.7    12.9    +      -       -      +
     76X  ALA*     4.8    11.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 71 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4X  ILE*     3.4    17.8    -      -       -      +
     67X  LYS*     2.9    41.9    +      -       +      +
     68X  MET*     3.0    26.6    +      -       +      +
     70X  ASN*     1.3    75.6    -      -       -      +
     72X  ARG*     1.3    63.2    +      -       +      +
    124X  HIS*     5.0     9.0    -      -       +      -
    128X  PHE*     5.4     2.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 72 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4X  ILE*     4.4     3.8    -      -       -      +
      5X  ARG*     3.5    25.8    -      -       -      +
      6X  GLN      3.0    21.8    +      -       -      +
      7X  ASN*     2.9    32.5    +      -       -      +
      8X  TYR*     3.4    36.8    -      -       +      +
     68X  MET*     2.9    35.4    +      -       +      +
     69X  GLN      3.9     2.9    -      -       -      +
     70X  ASN      3.1     0.2    -      -       -      -
     71X  GLN*     1.3    79.7    -      -       +      +
     73X  GLY*     1.3    60.9    +      -       -      +
     74X  GLY      3.4     0.2    -      -       -      -
    122X  ASP*     2.9    29.3    +      -       -      -
    124X  HIS*     3.8    35.4    +      -       -      +
    125X  LEU*     3.9     4.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 73 (chain X). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2X  SER*     3.7    31.8    -      -       -      -
      4X  ILE*     3.9     6.3    -      -       -      +
      5X  ARG*     4.0    15.4    +      -       -      -
     70X  ASN      3.1    14.3    +      -       -      -
     71X  GLN      3.3     1.2    +      -       -      -
     72X  ARG*     1.3    79.8    -      -       -      +
     74X  GLY*     1.3    64.7    +      -       -      +
     75X  ARG*     3.8    14.8    +      -       -      +
----------------------------------------------------------
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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