Contacts of the helix formed by residues 45 - 71 (chain D) in PDB entry 1MFR


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 HIS 45 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37D  PHE      4.6     1.3    -      -       -      -
     38D  ASP*     3.4    44.2    +      -       -      -
     43D  ALA*     3.3    15.3    +      -       +      -
     44D  LEU*     1.3    69.2    -      -       -      +
     46D  ASN*     1.3    64.6    +      -       -      +
     48D  ALA*     3.5     7.1    -      -       -      +
     49D  GLU*     3.1    30.5    +      -       +      +
    167D  ASP*     3.6     3.2    +      -       -      +
     67H  LYS*     5.0     4.7    +      -       -      -
    142X  LYS*     4.0     2.9    -      -       -      -
    146X  ASP*     3.0    34.0    +      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 46 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45D  HIS*     1.3    77.3    -      -       -      +
     47D  VAL*     1.3    66.3    +      -       -      +
     49D  GLU*     3.3     8.8    +      -       -      +
     50D  PHE      3.0    17.7    +      -       -      -
    167D  ASP*     3.0    46.9    +      -       -      +
    168D  LYS*     4.4    10.1    -      -       -      +
    171D  VAL*     3.2    27.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 47 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37D  PHE*     3.9    20.2    -      -       +      -
     44D  LEU*     3.5    18.6    -      -       +      +
     46D  ASN*     1.3    76.4    -      -       -      +
     48D  ALA*     1.3    62.0    +      -       -      +
     50D  PHE*     3.2     9.0    +      -       -      +
     51D  PHE*     3.2    46.0    +      -       +      -
     92D  THR*     4.1    26.0    -      -       +      +
     96D  MET*     4.6     4.5    -      -       +      -
    163D  GLU      5.8     0.2    -      -       -      +
    166D  PHE*     4.3    13.9    -      -       +      -
    167D  ASP*     3.1    22.9    +      -       +      +
    171D  VAL*     4.6     4.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 48 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34D  TYR*     3.2    41.3    -      -       +      +
     37D  PHE*     3.7    23.8    -      -       +      +
     38D  ASP*     4.1     4.7    -      -       +      +
     44D  LEU      3.0    14.5    +      -       -      +
     45D  HIS*     3.5    14.8    -      -       -      +
     47D  VAL*     1.3    77.4    -      -       -      +
     49D  GLU*     1.3    58.1    +      -       -      +
     51D  PHE*     3.4     1.7    +      -       -      -
     52D  LYS      3.0    21.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 49 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34D  TYR*     3.6    23.2    +      -       -      -
     45D  HIS*     3.1    18.7    +      -       +      +
     46D  ASN*     3.3    11.2    +      -       -      +
     48D  ALA*     1.3    75.0    -      -       -      +
     50D  PHE*     1.3    60.7    +      -       -      +
     52D  LYS*     3.6    25.6    +      -       -      +
     53D  GLU*     2.9    40.2    +      -       -      +
     67H  LYS*     5.8     1.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 50 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30D  TYR*     5.9     0.2    -      +       -      -
     46D  ASN      3.0    13.2    +      -       -      +
     47D  VAL*     3.2    10.7    +      -       -      +
     49D  GLU*     1.3    77.1    -      -       -      +
     51D  PHE*     1.3    93.1    +      +       -      +
     53D  GLU*     3.5     8.5    +      -       +      +
     54D  HIS*     3.2    54.8    +      +       -      -
     96D  MET*     4.0    21.3    -      -       +      -
    143D  ARG*     3.9    17.7    -      -       -      -
    144D  ILE*     4.5    12.3    -      -       +      -
    147D  PHE*     3.7    27.8    -      +       -      -
    171D  VAL*     3.7    20.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 51 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30D  TYR*     3.6    50.6    -      +       +      +
     33D  MET*     3.8    30.5    -      -       +      -
     34D  TYR      4.0     4.5    -      -       -      +
     37D  PHE*     3.7    23.1    -      +       -      -
     47D  VAL*     3.2    36.6    +      -       +      -
     48D  ALA      3.9     4.9    -      -       -      +
     50D  PHE*     1.3    97.5    -      +       -      +
     52D  LYS*     1.3    59.3    +      -       -      +
     54D  HIS*     3.2     5.1    +      -       +      +
     55D  SER*     2.9    24.3    +      -       -      -
     95D  ALA*     4.1    11.9    -      -       +      -
     96D  MET*     3.7    23.1    -      -       +      -
     99D  ALA*     4.2     8.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 52 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34D  TYR*     3.7    38.8    +      -       +      +
     48D  ALA      3.0    18.0    +      -       -      +
     49D  GLU*     3.6    31.8    +      -       -      +
     50D  PHE      3.3     0.2    -      -       -      -
     51D  PHE*     1.3    76.5    -      -       -      +
     53D  GLU*     1.3    63.8    +      -       +      +
     55D  SER*     3.2    21.7    +      -       -      +
     56D  HIS*     3.3    29.6    +      -       +      +
     63H  GLU*     3.6    25.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 53 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49D  GLU*     2.9    26.1    +      -       +      +
     50D  PHE*     3.6     9.2    -      -       +      +
     52D  LYS*     1.3    78.1    -      -       +      +
     54D  HIS*     1.3    63.0    -      -       +      +
     56D  HIS*     3.3    10.2    +      -       -      +
     57D  GLU*     3.1    35.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 54 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30D  TYR*     3.9    23.0    -      +       +      -
     50D  PHE*     3.2    40.6    +      +       -      +
     51D  PHE*     3.4    10.8    -      -       -      +
     53D  GLU*     1.3    82.5    -      -       +      +
     55D  SER*     1.3    64.0    +      -       -      +
     57D  GLU*     3.4    17.8    +      -       -      +
     58D  GLU*     3.2    32.2    +      -       -      +
    103D  GLU*     3.6    18.4    +      -       -      -
    140D  ASP*     3.7    26.2    -      -       +      -
    143D  ARG*     3.2    26.7    +      -       -      -
    144D  ILE*     4.9     4.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 55 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27D  SER*     2.9    47.6    +      -       -      +
     30D  TYR*     3.7    14.5    -      -       -      +
     31D  SER*     3.8    14.1    +      -       -      -
     51D  PHE      2.9    10.2    +      -       -      -
     52D  LYS*     3.2    15.9    +      -       -      +
     53D  GLU      3.3     0.4    -      -       -      -
     54D  HIS*     1.3    74.7    -      -       -      +
     56D  HIS*     1.3    76.9    +      -       -      +
     58D  GLU      3.4     0.9    +      -       -      -
     59D  ARG*     3.1    12.2    +      -       -      +
     63H  GLU*     4.4     5.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 56 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52D  LYS*     3.3    34.9    +      -       +      +
     53D  GLU*     3.3    12.1    +      -       -      +
     54D  HIS      3.2     0.4    -      -       -      -
     55D  SER*     1.3    91.2    +      -       -      +
     57D  GLU*     1.3    56.4    +      -       -      +
     59D  ARG*     3.5     7.8    +      -       +      +
     60D  GLU*     3.1    26.0    +      -       -      +
     59H  ARG*     6.0     2.7    -      -       +      +
     63H  GLU*     3.1    28.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 57 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53D  GLU*     3.1    21.4    +      -       -      +
     54D  HIS*     3.6    25.7    +      -       -      +
     55D  SER      3.2     0.2    -      -       -      -
     56D  HIS*     1.3    76.1    -      -       -      +
     58D  GLU*     1.3    64.1    +      -       +      +
     60D  GLU*     3.2     7.4    +      -       +      +
     61D  HIS*     2.9    46.7    +      -       +      +
    140D  ASP*     4.1    17.3    -      -       -      +
    143D  ARG*     5.8     1.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 58 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23D  GLU*     2.7    30.2    -      -       -      +
     26D  ALA*     4.2     9.4    -      -       +      +
     27D  SER*     3.8    13.7    -      -       -      +
     30D  TYR*     4.0    17.3    -      -       +      -
     54D  HIS*     3.2    20.8    +      -       -      +
     55D  SER      3.4     0.2    +      -       -      -
     57D  GLU*     1.3    80.7    -      -       -      +
     59D  ARG*     1.3    56.8    +      -       -      +
     61D  HIS*     3.1    11.1    +      -       -      +
     62D  ALA*     3.0    26.2    +      -       -      +
    103D  GLU*     3.4    15.2    -      -       -      +
    106D  VAL*     4.9     1.0    -      -       -      +
    176D   MG      2.0    32.0    -      -       -      -
    177D   MG      2.6    24.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 59 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24D  LEU*     4.9    12.3    -      -       +      +
     27D  SER*     3.6    13.6    +      -       -      +
     55D  SER      3.1    18.3    +      -       -      +
     56D  HIS*     3.6    10.1    -      -       +      +
     58D  GLU*     1.3    74.4    -      -       -      +
     60D  GLU*     1.3    63.9    +      -       -      +
     62D  ALA*     3.2     8.1    +      -       -      +
     63D  GLU*     3.1    35.6    +      -       +      +
     56H  HIS*     6.0     2.7    -      -       +      +
     59H  ARG*     5.7     9.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 60 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56D  HIS      3.1    14.7    +      -       -      +
     57D  GLU*     3.2    11.0    +      -       -      +
     59D  ARG*     1.3    77.2    -      -       -      +
     61D  HIS*     1.3    60.6    +      -       +      +
     63D  GLU*     3.5    12.1    +      -       -      +
     64D  LYS*     3.1    32.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 61 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23D  GLU*     3.4    16.4    +      -       -      +
     57D  GLU*     2.9    32.0    +      -       +      +
     58D  GLU*     3.1    17.3    +      -       -      +
     59D  ARG      3.2     0.2    -      -       -      -
     60D  GLU*     1.3    77.5    -      -       +      +
     62D  ALA*     1.3    65.3    +      -       -      +
     64D  LYS*     3.4    18.2    +      -       -      -
     65D  PHE*     3.3    12.9    +      -       -      -
    132D  GLU      4.6     6.6    +      -       -      -
    133D  TYR*     3.0    40.2    +      +       +      -
    136D  GLU*     5.1    13.7    -      -       +      +
    137D  GLN*     5.1     1.3    -      -       -      -
    140D  ASP*     5.6     0.4    -      -       -      -
    176D   MG      2.7    24.1    -      -       -      -
    177D   MG      4.3    10.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 62 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20D  LEU*     3.7    17.3    -      -       +      +
     23D  GLU*     3.8    10.5    -      -       +      +
     24D  LEU*     3.7    35.0    -      -       +      -
     58D  GLU      3.0    12.5    +      -       -      +
     59D  ARG      3.2     8.9    +      -       -      +
     61D  HIS*     1.3    75.7    -      -       -      +
     63D  GLU*     1.3    63.8    +      -       +      +
     65D  PHE*     3.3     9.4    +      -       -      +
     66D  MET*     3.1    25.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 63 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24D  LEU*     6.4     0.2    -      -       +      -
     59D  ARG*     3.1    23.7    +      -       +      +
     60D  GLU*     3.8    12.2    -      -       -      +
     62D  ALA*     1.3    76.1    -      -       +      +
     64D  LYS*     1.3    64.1    +      -       -      +
     66D  MET*     3.2    24.7    +      -       +      +
     67D  LYS*     3.1    25.2    +      -       -      +
     31H  SER*     4.9     5.7    +      -       -      +
     34H  TYR*     5.1    10.8    -      -       +      -
     52H  LYS*     3.6    21.0    -      -       -      +
     55H  SER*     4.4     5.5    +      -       -      -
     56H  HIS*     3.0    36.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 64 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60D  GLU*     3.1    19.7    +      -       -      +
     61D  HIS*     3.6    18.6    +      -       -      +
     62D  ALA      3.3     0.4    -      -       -      -
     63D  GLU*     1.3    76.3    -      -       -      +
     65D  PHE*     1.3    58.3    +      -       -      +
     67D  LYS*     3.5     7.3    +      -       -      +
     68D  TYR*     2.9    27.0    +      -       -      +
    128D  PHE*     3.7     9.8    -      -       +      -
    132D  GLU*     2.9    52.1    +      -       +      +
    133D  TYR*     3.2    21.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 65 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16D  VAL*     3.9    29.2    -      -       +      +
     19D  MET*     3.4    33.0    -      -       +      -
     20D  LEU*     4.2    19.9    -      -       +      +
     23D  GLU*     4.1    15.0    -      -       +      -
     61D  HIS      3.3    16.4    +      -       -      -
     62D  ALA      3.3     8.0    +      -       -      +
     63D  GLU      3.2     0.4    -      -       -      -
     64D  LYS*     1.3    78.7    -      -       -      +
     66D  MET*     1.3    64.8    +      -       -      +
     68D  TYR*     3.5     2.4    -      -       +      +
     69D  GLN*     3.0    24.3    +      -       -      +
    110D  LEU*     4.0    10.5    -      -       +      -
    113D  LEU*     4.5     7.9    -      -       +      -
    125D  LEU*     5.3     0.2    -      -       +      -
    128D  PHE*     3.5    26.0    -      +       -      -
    129D  LEU*     4.0    12.1    -      -       +      -
    133D  TYR*     3.4    30.3    -      +       -      -
----------------------------------------------------------
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Residues in contact with MET 66 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20D  LEU*     3.8    31.0    -      -       +      -
     24D  LEU*     5.1     7.9    -      -       +      -
     62D  ALA*     3.1    20.7    +      -       +      +
     63D  GLU*     3.2    23.5    +      -       +      +
     65D  PHE*     1.3    75.9    -      -       -      +
     67D  LYS*     1.3    61.4    +      -       -      +
     69D  GLN*     3.4     4.4    -      -       -      +
     70D  ASN*     3.3    27.2    +      -       -      -
     76D  VAL*     3.9    21.5    -      -       +      +
     78D  LEU*     4.7     7.2    -      -       +      -
     28H  TYR*     5.6     0.4    -      -       +      -
     31H  SER*     3.3    40.4    -      -       -      +
     34H  TYR*     4.5    15.5    -      -       +      -
     35H  ALA*     4.3    13.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 67 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63D  GLU      3.1    10.4    +      -       -      +
     64D  LYS*     3.6    10.8    -      -       -      +
     65D  PHE      3.3     0.2    -      -       -      -
     66D  MET*     1.3    79.6    -      -       -      +
     68D  TYR*     1.3    57.4    +      -       -      +
     70D  ASN*     3.5     3.3    +      -       -      +
     71D  LYS*     3.0    44.4    +      -       +      +
     34H  TYR*     3.4    29.1    +      -       -      +
     38H  ASP*     3.1    33.0    +      -       -      +
     45H  HIS*     5.0     5.3    +      -       -      -
     49H  GLU*     5.8     1.8    -      -       -      -
    142I  LYS*     6.0     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 68 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8D  TYR*     3.9    18.4    -      +       -      -
     16D  VAL*     4.6     8.1    -      -       +      -
     64D  LYS      2.9    18.4    +      -       -      +
     65D  PHE*     3.5     6.5    -      -       -      +
     66D  MET      3.2     0.2    -      -       -      -
     67D  LYS*     1.3    74.3    -      -       -      +
     69D  GLN*     1.3    67.7    +      -       -      +
     71D  LYS*     3.1    16.9    +      -       +      +
     72D  ARG*     2.8    52.1    +      -       +      +
    124D  HIS*     2.8    42.0    +      +       -      -
    125D  LEU*     3.2    36.6    -      -       +      -
    128D  PHE*     3.6    42.6    -      +       +      -
    135I  GLU*     5.6     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 69 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8D  TYR*     3.0    36.0    +      -       -      -
     13D  GLU*     3.2    27.6    +      -       -      +
     16D  VAL*     3.5    13.9    -      -       +      +
     17D  ASN*     3.4    19.6    +      -       -      -
     20D  LEU*     5.8     0.9    -      -       +      +
     65D  PHE      3.0    14.4    +      -       -      +
     66D  MET      3.4     6.5    -      -       -      +
     68D  TYR*     1.3    82.9    -      -       -      +
     70D  ASN*     1.3    61.1    +      -       -      +
     72D  ARG*     3.2     4.5    +      -       -      +
     73D  GLY      3.1     3.5    +      -       -      -
     74D  GLY*     2.9    43.7    +      -       -      -
     75D  ARG      4.0     6.7    -      -       -      -
     76D  VAL*     3.7    24.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 70 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4D  VAL*     4.5     0.5    -      -       -      +
     66D  MET      3.3    13.5    +      -       -      -
     67D  LYS      3.9     3.4    -      -       -      +
     69D  GLN*     1.3    77.2    -      -       -      +
     71D  LYS*     1.3    64.7    +      -       -      +
     73D  GLY*     3.2    10.4    +      -       -      -
     74D  GLY      3.9    12.4    -      -       -      +
     75D  ARG*     4.0     1.2    +      -       -      +
     76D  VAL*     4.6     9.5    +      -       -      +
     35H  ALA*     3.0    30.1    +      -       -      +
     38H  ASP*     3.2    38.6    +      -       -      +
     39H  ARG*     3.3    27.6    -      -       -      +
     40H  ASP*     4.9     3.3    +      -       -      +
    142I  LYS*     3.2    18.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 71 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4D  VAL*     3.4    17.5    -      -       -      +
     67D  LYS*     3.0    29.4    +      -       +      +
     68D  TYR*     3.1    22.3    +      -       +      +
     70D  ASN*     1.3    76.8    -      -       -      +
     72D  ARG*     1.3    64.8    +      -       +      +
    128D  PHE*     6.2     2.4    -      -       -      -
    135I  GLU*     2.8    35.2    +      -       -      +
    138I  VAL*     4.3    24.1    -      -       +      +
    139I  LYS*     4.5    11.6    -      -       -      +
    142I  LYS*     4.1    26.8    -      -       +      +
----------------------------------------------------------
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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