Contacts of the helix formed by residues 46 - 75 (chain A) in PDB entry 2YW7


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 ASN 46 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  GLY      3.4     0.2    -      -       -      -
     45A  PRO*     1.3    86.8    -      -       -      +
     47A  PHE*     1.3    56.6    +      -       -      +
     48A  ILE*     3.2     3.8    -      -       -      -
     49A  GLY*     2.8    27.2    +      -       -      +
     50A  VAL*     3.6     6.2    +      -       -      +
    102A  VAL*     4.1    14.8    -      -       +      +
    103A  GLN*     5.7     4.0    -      -       -      +
     46C  ASN*     5.3     7.3    +      -       -      +
     45G  PRO*     4.2    13.0    -      -       +      +
     46G  ASN*     3.6    33.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 47 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  VAL*     3.3    18.5    -      -       -      +
     43A  VAL*     3.3    23.8    -      -       -      +
     44A  GLY      3.1    26.9    +      -       -      +
     45A  PRO      3.1     1.4    +      -       -      -
     46A  ASN*     1.3    77.4    -      -       -      +
     48A  ILE*     1.3    89.5    +      -       +      +
     50A  VAL*     3.3     7.6    +      -       -      +
     51A  HIS*     3.2    47.3    +      +       -      -
    102A  VAL*     3.8    11.1    -      -       -      +
    150C  TRP*     4.6    13.2    -      +       -      -
    151C  PHE*     4.2    25.8    -      +       -      -
    154C  ALA*     4.0    11.0    -      -       +      -
    155C  HIS*     3.9    26.9    -      +       -      -
----------------------------------------------------------
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Residues in contact with ILE 48 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  PRO      3.6    21.3    -      -       -      +
     46A  ASN      4.7     0.9    -      -       -      -
     47A  PHE*     1.3   101.7    -      -       +      +
     49A  GLY*     1.3    59.4    +      -       -      +
     51A  HIS*     2.9    22.9    -      -       +      +
     52A  GLU*     2.8    38.8    +      -       +      +
     49C  GLY*     5.7     3.1    -      -       -      +
    151C  PHE*     4.1    18.2    -      -       +      -
    155C  HIS*     3.7    22.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 49 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46A  ASN*     2.8    14.3    +      -       -      -
     48A  ILE*     1.3    75.3    -      -       -      +
     50A  VAL*     1.3    64.4    +      -       -      -
     52A  GLU*     3.0    18.7    +      -       -      +
     53A  MET*     3.0    26.7    +      -       -      +
    155A  HIS*     6.1     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 50 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  VAL*     5.2     0.4    -      -       +      -
     42A  VAL*     3.7    28.5    -      -       +      -
     46A  ASN      3.6     2.6    +      -       -      +
     47A  PHE      3.3     6.5    +      -       -      +
     49A  GLY*     1.3    69.9    -      -       -      +
     51A  HIS*     1.3    67.6    +      -       -      +
     53A  MET*     3.1    15.6    +      -       +      +
     54A  ILE*     2.8    51.5    +      -       +      +
    102A  VAL*     3.3    38.1    -      -       +      -
    105A  HIS*     5.6     1.1    -      -       +      -
    106A  LEU*     4.2    24.5    -      -       +      -
    109A  LEU*     5.8     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 51 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  HIS*     3.0    64.7    +      +       -      +
     42A  VAL*     4.4     4.3    -      -       -      +
     47A  PHE*     3.2    46.1    +      +       -      -
     48A  ILE*     2.9    28.3    -      -       +      +
     50A  VAL*     1.3    80.7    -      -       -      +
     52A  GLU*     1.3    56.8    +      -       +      +
     54A  ILE*     3.1     9.3    +      -       -      +
     55A  ASP*     2.3    27.5    +      -       -      +
    150C  TRP*     5.7     4.8    -      +       -      -
    151C  PHE*     5.9     3.8    -      +       -      -
----------------------------------------------------------
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Residues in contact with GLU 52 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48A  ILE*     2.8    24.1    +      -       +      +
     49A  GLY*     3.0    21.7    +      -       -      +
     51A  HIS*     1.3    74.2    -      -       +      +
     53A  MET*     1.3    57.4    +      -       -      +
     55A  ASP*     3.7     4.9    -      -       -      +
     56A  PRO*     3.1    24.9    -      -       -      +
     52G  GLU*     5.7     1.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 53 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  GLY      3.0    10.5    +      -       -      +
     50A  VAL*     3.1    30.7    +      -       +      +
     52A  GLU*     1.3    75.5    -      -       -      +
     54A  ILE*     1.3    68.8    -      -       +      +
     56A  PRO*     3.3    11.2    -      -       -      +
     57A  GLN*     3.9     4.0    +      -       -      +
    106A  LEU*     3.8    30.5    -      -       +      -
    148A  PHE*     3.6    29.9    -      -       +      -
    151A  PHE*     3.5    39.1    -      -       +      +
    152A  VAL*     4.6     2.9    -      -       -      -
    155A  HIS*     3.3    48.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 54 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  LEU*     3.9    24.2    -      -       +      +
     38A  VAL*     3.3    28.0    -      -       +      -
     39A  HIS*     4.1    25.8    -      -       +      +
     42A  VAL*     4.8     0.2    -      -       +      -
     50A  VAL*     2.8    45.6    +      -       +      +
     51A  HIS      3.7     3.4    -      -       -      +
     53A  MET*     1.3    80.0    -      -       +      +
     55A  ASP*     1.3    54.6    +      -       -      +
     57A  GLN*     3.1     8.3    +      -       -      +
     58A  VAL*     2.8    52.2    +      -       +      +
    109A  LEU*     4.8     2.7    -      -       +      -
    148A  PHE*     4.6     6.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 55 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  LYS*     5.1     5.8    -      -       -      +
     39A  HIS*     3.3    25.5    +      -       -      -
     51A  HIS*     2.3    33.1    +      -       -      +
     52A  GLU*     3.6     5.2    +      -       -      +
     54A  ILE*     1.3    76.7    -      -       -      +
     56A  PRO*     1.3    69.4    -      -       +      +
     57A  GLN      3.2     0.7    +      -       -      -
     58A  VAL*     3.2    17.0    +      -       -      +
     59A  GLU*     3.2    16.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 56 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52A  GLU      3.1    23.3    -      -       -      +
     53A  MET*     3.3    11.4    -      -       -      +
     55A  ASP*     1.3    92.9    -      -       +      +
     57A  GLN*     1.3    58.7    +      -       -      +
     59A  GLU*     4.2     4.4    -      -       +      +
     60A  LEU*     3.2    24.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 57 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  LEU*     3.8    10.3    -      -       +      -
     53A  MET      3.9     1.7    +      -       -      +
     54A  ILE      3.3     8.3    -      -       -      +
     55A  ASP      3.1     0.2    -      -       -      -
     56A  PRO*     1.3    78.7    -      -       -      +
     58A  VAL*     1.3    55.8    +      -       -      +
     60A  LEU*     2.9    24.0    +      -       -      +
     61A  VAL*     2.7    52.1    +      -       -      +
    113A  TYR*     2.7    33.2    +      -       -      +
    144A  GLU*     3.8     3.6    +      -       -      +
    145A  LEU*     3.5    19.0    -      -       -      +
    148A  PHE*     3.6    45.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 58 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  HIS*     4.2     7.8    -      -       +      +
     35A  LEU*     3.7    22.9    -      -       +      -
     36A  LYS*     3.7    33.9    -      -       +      +
     54A  ILE*     2.8    43.8    +      -       +      +
     55A  ASP*     3.6     7.6    -      -       -      +
     57A  GLN*     1.3    72.3    -      -       -      +
     59A  GLU*     1.3    64.9    +      -       -      +
     61A  VAL*     4.0     6.6    -      -       -      +
     62A  ARG*     3.1    45.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 59 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  LYS*     5.9     0.5    -      -       -      -
     55A  ASP      3.2    12.2    +      -       -      +
     56A  PRO*     4.2     4.7    -      -       +      +
     57A  GLN      3.2     0.6    -      -       -      -
     58A  VAL*     1.3    80.1    -      -       -      +
     60A  LEU*     1.3    61.6    +      -       -      +
     62A  ARG*     3.4    40.3    +      -       -      +
     63A  GLY*     2.9    26.0    +      -       -      -
     59E  GLU*     5.3     4.5    -      -       -      +
     62E  ARG*     4.2     5.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 60 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  PRO      3.2    14.7    +      -       -      +
     57A  GLN*     3.0    26.5    -      -       -      +
     59A  GLU*     1.3    77.6    -      -       -      +
     61A  VAL*     1.3    57.0    +      -       -      +
     63A  GLY*     3.1     4.7    +      -       -      -
     64A  TYR*     3.0    75.8    +      -       +      +
    144A  GLU*     3.5    28.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 61 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  TYR*     3.5    36.8    -      -       +      +
     31A  LEU*     3.7    23.3    -      -       +      -
     32A  HIS*     3.8    13.7    -      -       +      -
     35A  LEU*     4.1     4.7    -      -       +      -
     57A  GLN*     2.7    51.7    +      -       +      +
     58A  VAL      4.0     3.6    -      -       -      +
     60A  LEU*     1.3    69.2    -      -       +      +
     62A  ARG*     1.3    66.1    +      -       -      +
     64A  TYR*     3.0    11.3    +      -       +      +
     65A  ALA*     2.9    21.7    +      -       -      +
    145A  LEU*     4.6     4.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 62 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  HIS*     3.8    34.0    +      -       +      -
     36A  LYS*     3.9    30.9    -      -       -      +
     58A  VAL*     3.1    30.9    +      -       -      +
     59A  GLU*     3.4    34.4    +      -       -      +
     61A  VAL*     1.3    78.9    -      -       -      +
     63A  GLY*     1.3    60.7    +      -       -      +
     65A  ALA*     3.3     4.8    -      -       -      +
     66A  ASP*     3.2    28.3    +      -       -      +
     32E  HIS*     5.0     5.1    +      -       -      -
     62E  ARG*     3.4    66.7    +      -       -      +
     66E  ASP*     5.0     1.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 63 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59A  GLU      2.9    15.1    +      -       -      -
     60A  LEU*     3.4     5.4    -      -       -      -
     61A  VAL      3.0     0.4    -      -       -      -
     62A  ARG*     1.3    73.3    -      -       -      +
     64A  TYR*     1.3    60.4    +      -       -      +
     66A  ASP*     3.0    13.6    +      -       -      +
     67A  GLU*     2.8    33.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 64 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  TYR*     3.6    20.2    -      +       +      -
     60A  LEU*     3.0    52.0    +      -       +      +
     61A  VAL*     3.0    15.2    +      -       +      +
     63A  GLY*     1.3    72.9    -      -       -      +
     65A  ALA*     1.3    66.2    +      -       -      +
     67A  GLU*     2.8    22.7    +      -       -      +
     68A  VAL*     2.8    16.3    +      -       -      +
    140A  ALA      5.2     0.6    -      -       -      -
    141A  HIS*     3.2    65.3    -      +       +      +
    144A  GLU*     3.0    32.7    -      -       -      +
    145A  LEU*     4.3    16.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 65 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25A  LEU*     3.6    18.5    -      -       +      +
     28A  TYR*     3.7    20.0    -      -       +      -
     29A  ASN*     3.8    22.2    -      -       -      +
     32A  HIS*     4.6     4.5    -      -       +      +
     61A  VAL      2.9    11.4    +      -       -      +
     62A  ARG*     3.3    15.0    -      -       -      +
     64A  TYR*     1.3    75.0    -      -       -      +
     66A  ASP*     1.3    62.8    +      -       -      +
     68A  VAL*     3.6     0.7    +      -       -      +
     69A  ALA*     3.2    20.6    +      -       -      +
     40E  TRP*     4.1     5.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 66 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62A  ARG*     3.2    16.6    +      -       -      +
     63A  GLY*     3.0    11.6    +      -       -      +
     65A  ALA*     1.3    74.9    -      -       -      +
     67A  GLU*     1.3    65.2    -      -       -      +
     69A  ALA*     3.3     1.7    +      -       -      +
     70A  GLU*     3.0    38.4    +      -       +      +
     36E  LYS*     2.9    36.6    +      -       -      +
     40E  TRP*     3.4    22.9    +      -       -      +
     62E  ARG*     5.5     1.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 67 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  GLY      2.8    15.6    +      -       -      +
     64A  TYR*     2.8    24.0    +      -       -      +
     66A  ASP*     1.3    72.3    -      -       +      +
     68A  VAL*     1.3    60.9    +      -       -      +
     70A  GLU*     3.6     8.4    -      -       -      +
     71A  ARG*     3.1    21.0    +      -       -      +
    137A  LEU*     3.2    26.0    -      -       +      +
    141A  HIS*     2.4    37.7    +      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 68 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  LEU*     3.4    38.4    -      -       +      +
     24A  GLN*     4.5     2.5    -      -       +      -
     25A  LEU*     3.5    27.6    -      -       +      -
     28A  TYR*     4.2    13.2    -      -       +      -
     64A  TYR      2.8    16.3    +      -       -      +
     65A  ALA      4.1     1.3    -      -       -      +
     67A  GLU*     1.3    71.5    -      -       -      +
     69A  ALA*     1.3    70.2    +      -       -      +
     71A  ARG*     3.0     7.9    +      -       -      +
     72A  ILE*     3.0    24.5    +      -       +      +
    137A  LEU*     3.8    19.1    -      -       +      -
    138A  LEU*     4.0    18.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 69 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25A  LEU*     4.4     3.1    -      -       +      -
     65A  ALA      3.2    10.6    +      -       -      +
     66A  ASP      3.7     1.3    -      -       -      +
     68A  VAL*     1.3    79.2    -      -       -      +
     70A  GLU*     1.3    65.9    +      -       -      +
     71A  ARG      2.7     1.7    +      -       -      -
     72A  ILE*     2.8    18.8    +      -       -      +
     73A  ALA*     2.9    12.4    +      -       -      +
     79A  PRO*     3.8    22.5    -      -       +      +
     40E  TRP*     3.5    45.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 70 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66A  ASP*     3.0    25.5    +      -       +      +
     67A  GLU*     3.6     7.8    -      -       -      +
     69A  ALA*     1.3    77.1    -      -       -      +
     71A  ARG*     1.3    51.5    +      -       -      +
     73A  ALA*     3.5     8.7    -      -       -      +
     74A  THR*     2.6    38.4    +      -       -      +
    147D  LYS*     3.1    41.3    +      -       +      +
    150D  TRP*     5.3    11.2    -      -       +      -
     40E  TRP*     4.8    12.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 71 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  LEU*     3.4    24.5    -      -       +      -
     67A  GLU      3.1    14.2    +      -       -      +
     68A  VAL*     3.0    16.6    +      -       -      +
     69A  ALA      2.7     4.6    +      -       -      -
     70A  GLU*     1.3    70.2    -      -       -      +
     72A  ILE*     1.3    54.2    +      -       -      -
     74A  THR*     2.8    34.5    +      -       -      +
     75A  LEU*     2.8    36.2    +      -       -      +
    131A  ASP*     2.8    27.6    +      -       -      -
    133A  VAL*     3.7    23.1    -      -       -      +
    134A  SER*     3.1    16.1    +      -       -      +
    137A  LEU*     4.8     9.9    -      -       +      -
    121D  ARG*     5.3     0.8    -      -       -      +
    143D  GLY*     5.0     5.3    +      -       -      -
    146D  GLU*     2.7    40.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 72 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18A  ALA*     3.8    13.2    -      -       +      +
     21A  LEU*     3.5    29.8    -      -       +      +
     22A  GLN*     3.7    30.3    -      -       +      +
     25A  LEU*     4.4     4.3    -      -       +      -
     68A  VAL*     3.0    19.2    +      -       +      +
     69A  ALA*     2.8    11.5    +      -       -      +
     71A  ARG*     1.3    70.5    -      -       -      +
     73A  ALA*     1.3    62.1    +      -       -      +
     75A  LEU*     2.9    17.0    +      -       -      +
     77A  LYS*     3.1    44.8    +      -       +      +
     78A  SER      4.3     1.3    -      -       -      +
     79A  PRO*     3.8    29.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 73 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69A  ALA      2.9    10.3    +      -       -      +
     70A  GLU*     3.5    14.4    -      -       -      +
     72A  ILE*     1.3    76.3    -      -       -      +
     74A  THR*     1.3    56.0    +      -       -      +
     76A  GLY      3.3     0.2    +      -       -      -
     77A  LYS      3.2    12.8    +      -       -      +
     79A  PRO*     3.9    15.6    -      -       +      +
    150D  TRP*     3.0    30.2    +      -       +      -
     40E  TRP*     4.3     7.9    -      -       +      +
     41E  ASN*     5.4     0.2    -      -       -      +
     99E  ARG*     2.6    34.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 74 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  GLU*     2.6    21.3    +      -       -      +
     71A  ARG*     2.8    29.8    +      -       -      +
     73A  ALA*     1.3    68.1    -      -       -      +
     75A  LEU*     1.3    52.0    +      -       +      +
     76A  GLY*     2.8    16.4    +      -       -      -
    146D  GLU*     3.9    42.6    -      -       +      +
    147D  LYS*     4.2    10.9    -      -       -      +
    150D  TRP*     3.7    27.3    -      -       +      +
    153D  ARG*     5.9     0.7    +      -       -      -
     99E  ARG*     4.4     0.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 75 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  ALA*     4.2    38.0    -      -       +      +
     15A  SER      5.1     0.2    +      -       -      -
     17A  VAL*     3.5    23.3    -      -       +      -
     18A  ALA*     4.5     4.0    -      -       +      +
     21A  LEU*     3.4    34.1    -      -       +      -
     71A  ARG*     2.8    50.6    +      -       +      +
     72A  ILE*     2.9     7.5    +      -       -      +
     74A  THR*     1.3    70.8    -      -       +      +
     76A  GLY*     1.3    60.0    +      -       -      +
     77A  LYS*     3.3     7.2    +      -       -      +
    131A  ASP*     4.6     3.6    -      -       -      +
    121D  ARG*     5.2     9.2    -      -       -      +
    146D  GLU*     4.9     1.6    -      -       +      +
----------------------------------------------------------
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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