Contacts of the helix formed by residues 49 - 75 (chain G) in PDB entry 5B31


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 THR 49 (chain G).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47G  GLY      3.1     0.4    -      -       -      -
     48G  ALA*     1.3    87.3    -      -       +      +
     50G  ALA*     1.3    60.7    +      -       -      +
     51G  ALA      3.1     2.7    -      -       -      -
     52G  VAL*     2.9     9.9    +      -       -      +
     53G  TYR*     2.8    29.5    +      -       -      +
    301G   CL      3.0    15.7    -      -       +      +
     91H  SER*     3.1    16.1    +      -       -      -
    118H  VAL*     3.8    31.4    -      -       +      +
    121H  TYR*     4.4    15.0    -      -       +      -
    122H  THR*     5.4     5.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 50 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36G  LEU*     4.2     3.6    -      -       +      -
     46G  VAL*     3.9    14.1    -      -       +      -
     47G  GLY      3.4     3.6    +      -       -      +
     49G  THR*     1.3    78.5    +      -       -      +
     51G  ALA*     1.3    58.2    +      -       -      +
     53G  TYR*     3.4     1.1    +      -       -      +
     54G  SER*     2.9    34.5    +      -       -      -
    301G   CL      3.5     1.8    -      -       -      +
     89H  ILE*     3.4    28.9    -      -       +      +
     90H  THR*     3.8     2.2    -      -       -      -
     91H  SER*     3.6    23.3    -      -       -      +
     94H  ILE*     4.1     9.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 51 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19G  ARG*     4.0     4.0    -      -       -      +
     29G  VAL*     3.7    17.8    -      -       +      +
     32G  ILE*     3.8     7.3    -      -       -      +
     33G  HIS*     3.5    48.2    -      -       +      +
     36G  LEU*     4.1    10.8    -      -       +      +
     46G  VAL*     4.7     0.2    -      -       -      +
     47G  GLY      4.2     2.4    +      -       -      -
     48G  ALA      4.8     0.2    -      -       -      +
     49G  THR*     3.1     0.6    -      -       -      +
     50G  ALA*     1.3    79.7    -      -       -      +
     52G  VAL*     1.3    56.6    +      -       -      +
     55G  ALA*     2.9    31.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 52 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23G  ALA*     3.7    14.6    -      -       +      -
     25G  LEU*     3.6     1.9    -      -       +      +
     29G  VAL*     4.0    19.5    -      -       +      -
     48G  ALA      4.2     2.2    -      -       -      +
     49G  THR*     2.9    14.2    +      -       -      +
     51G  ALA*     1.3    77.3    -      -       -      +
     53G  TYR*     1.3    58.4    +      -       -      +
     55G  ALA*     3.2     4.5    +      -       -      +
     56G  ALA*     2.9    27.0    +      -       -      +
    117H  ALA*     3.7    34.5    -      -       +      +
    118H  VAL*     3.9    10.1    -      -       +      +
    121H  TYR*     3.6    42.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 53 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49G  THR      2.8    17.5    +      -       -      +
     50G  ALA      3.8     3.6    -      -       -      +
     52G  VAL*     1.3    70.0    -      -       -      +
     54G  SER*     1.3    67.2    +      -       -      +
     56G  ALA*     3.0     9.5    +      -       -      +
     57G  ILE*     2.9    49.9    +      -       +      +
     91H  SER*     3.9    25.6    -      -       -      -
     94H  ILE*     3.5    17.7    -      -       +      -
     95H  GLN*     2.6    55.2    +      -       +      +
     98H  VAL*     4.8     2.7    -      -       +      -
    110H  ALA      4.8     0.2    -      -       -      -
    111H  VAL*     3.5    17.4    +      -       -      -
    114H  GLY*     3.7    28.0    -      -       -      -
    115H  THR*     3.9     6.1    -      -       -      -
    118H  VAL*     3.9    13.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 54 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32G  ILE*     3.9    15.0    -      -       -      -
     36G  LEU*     4.1     6.6    -      -       -      +
     50G  ALA      2.9    15.1    +      -       -      -
     51G  ALA      3.9     3.6    -      -       -      -
     53G  TYR*     1.3    76.3    -      -       -      +
     55G  ALA*     1.3    64.0    +      -       -      +
     57G  ILE*     3.1     7.4    +      -       -      +
     58G  LEU*     3.0    28.7    +      -       -      +
     70H  PHE*     4.7    11.2    -      -       -      -
     73H  ILE*     4.6     7.3    -      -       -      +
     94H  ILE*     3.3    37.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 55 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25G  LEU*     3.7    14.8    -      -       +      -
     27G  PHE*     3.8    11.7    -      -       +      +
     29G  VAL*     3.8    15.5    -      -       +      -
     32G  ILE*     3.5    26.4    -      -       +      +
     51G  ALA      2.9    20.0    +      -       -      +
     52G  VAL      3.4     4.5    -      -       -      +
     54G  SER*     1.3    77.1    -      -       -      +
     56G  ALA*     1.3    62.3    +      -       -      +
     58G  LEU*     3.3     3.3    +      -       -      +
     59G  GLU*     3.0    24.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 56 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25G  LEU*     3.5    15.2    -      -       +      +
     52G  VAL      2.9    12.4    +      -       -      +
     53G  TYR      3.0     8.3    +      -       -      +
     55G  ALA*     1.3    77.7    -      -       -      +
     57G  ILE*     1.3    63.5    +      -       -      +
     59G  GLU*     3.3     3.5    +      -       -      +
     60G  TYR*     3.0    24.5    +      -       -      +
    113H  GLU*     3.8    17.8    -      -       +      +
    114H  GLY*     3.8     7.0    -      -       -      -
    117H  ALA*     3.6    26.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 57 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53G  TYR*     2.9    42.0    +      -       +      +
     54G  SER*     3.1     9.4    +      -       -      +
     56G  ALA*     1.3    76.1    -      -       -      +
     58G  LEU*     1.3    67.8    +      -       +      +
     60G  TYR*     3.4     6.3    +      -       -      +
     61G  LEU*     3.1    38.5    +      -       +      +
     73H  ILE*     3.5    29.6    -      -       +      -
     94H  ILE*     5.2     0.7    -      -       +      -
     98H  VAL*     3.5    22.0    -      -       +      -
    102H  LEU*     5.1     0.4    -      -       +      -
    110H  ALA*     3.2    35.7    -      -       +      +
    114H  GLY*     3.9     5.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 58 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27G  PHE*     3.6    17.0    -      -       +      -
     32G  ILE*     3.9    20.6    -      -       +      -
     54G  SER*     3.0    14.5    +      -       -      +
     55G  ALA      3.7     5.4    -      -       -      +
     57G  ILE*     1.3    79.9    -      -       +      +
     59G  GLU*     1.3    55.9    +      -       -      +
     61G  LEU*     4.1     3.4    -      -       +      +
     62G  THR*     2.7    34.1    +      -       -      -
     37H  TYR*     4.9     1.8    -      -       -      +
     65H  PHE*     5.5     1.0    -      -       +      -
     66H  VAL*     4.1    20.4    -      -       +      +
     69H  ILE*     3.7    35.9    -      -       +      -
     70H  PHE*     3.7    40.8    -      -       +      +
     73H  ILE*     5.3     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 59 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24G  GLY      4.9     1.2    -      -       -      +
     25G  LEU*     3.4    19.4    -      -       +      +
     26G  GLN*     2.8    47.8    +      -       -      +
     27G  PHE*     3.1    25.3    +      -       +      +
     55G  ALA      3.0    15.6    +      -       -      +
     56G  ALA*     3.7     5.2    -      -       -      +
     58G  LEU*     1.3    73.8    -      -       -      +
     60G  TYR*     1.3    60.6    +      -       -      +
     62G  THR*     3.3     2.9    +      -       -      -
     63G  ALA*     2.8    30.7    +      -       +      +
     44H  VAL*     3.8    17.2    -      -       +      +
     47H  GLN*     4.1    11.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 60 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56G  ALA      3.0    16.7    +      -       -      +
     57G  ILE*     3.7     4.5    -      -       -      +
     59G  GLU*     1.3    77.1    -      -       -      +
     61G  LEU*     1.3    76.4    +      -       +      +
     63G  ALA*     3.0    10.4    +      -       +      +
     64G  GLU*     2.9    51.3    +      -       +      +
    106H  LEU*     3.7    31.7    -      -       +      +
    109H  HIS*     3.0    35.0    +      +       +      +
    110H  ALA*     3.8    19.7    -      -       +      -
    113H  GLU*     3.8    34.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 61 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57G  ILE*     3.1    21.8    +      -       +      +
     58G  LEU*     4.2     3.1    -      -       -      +
     60G  TYR*     1.3    89.1    -      -       +      +
     62G  THR*     1.3    62.5    +      -       -      +
     64G  GLU*     3.4     5.3    +      -       +      +
     65G  VAL*     3.0    29.1    +      -       -      +
     96G  LEU*     5.2     4.3    -      -       +      -
     99G  LEU*     4.3     9.4    -      -       +      -
     65H  PHE*     4.1    13.5    -      -       +      -
     69H  ILE*     3.8    34.5    -      -       +      -
    102H  LEU*     3.8    30.5    -      -       +      -
    106H  LEU*     3.7    35.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 62 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27G  PHE*     3.4    23.2    -      -       +      -
     58G  LEU      2.7    23.3    +      -       -      -
     59G  GLU*     3.4     5.4    -      -       -      -
     61G  LEU*     1.3    78.2    -      -       -      +
     63G  ALA*     1.3    63.1    +      -       -      +
     65G  VAL*     3.3     2.8    +      -       -      +
     66G  LEU*     2.9    48.8    +      -       +      +
     41H  VAL*     4.3    11.0    -      -       +      -
     44H  VAL*     4.4     9.0    -      -       +      -
     62H  MET*     3.8    19.7    -      -       +      +
     65H  PHE*     4.3     3.6    -      -       -      -
     66H  VAL*     3.7    12.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 63 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59G  GLU*     2.8    18.1    +      -       +      +
     60G  TYR*     3.4    12.1    -      -       +      +
     62G  THR*     1.3    73.0    -      -       -      +
     64G  GLU*     1.3    54.1    +      -       -      +
     66G  LEU*     3.2     2.3    +      -       -      +
     67G  GLU*     2.7    38.4    +      -       -      +
     44H  VAL*     3.6    21.7    -      -       +      +
     47H  GLN*     6.1     0.7    -      -       -      +
     48H  VAL*     3.9    17.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 64 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60G  TYR*     2.9    42.0    +      -       +      +
     61G  LEU*     3.7    11.7    -      -       -      +
     63G  ALA*     1.3    77.1    -      -       -      +
     65G  VAL*     1.3    62.1    +      -       +      +
     67G  GLU*     3.6     9.6    +      -       -      +
     68G  LEU*     3.1    34.9    +      -       +      +
     93G  ASP*     5.4     4.0    -      -       -      +
     96G  LEU*     4.4    15.7    -      -       +      +
    106H  LEU*     4.4    19.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 65 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61G  LEU      3.0    20.5    +      -       -      +
     62G  THR      3.9     3.1    -      -       -      +
     64G  GLU*     1.3    75.7    -      -       -      +
     66G  LEU*     1.3    58.7    +      -       -      +
     68G  LEU*     3.2     2.5    +      -       -      +
     69G  ALA*     2.8    28.1    +      -       +      +
     86G  LEU*     3.5    28.0    -      -       +      -
     89G  ALA*     4.6     1.0    -      -       +      +
     90G  ILE*     3.9    29.6    -      -       +      -
     96G  LEU*     4.1    23.3    -      -       +      -
    100G  ILE*     4.4     0.7    -      -       +      -
     62H  MET*     3.9    16.2    -      -       +      -
     65H  PHE*     4.1    18.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 66 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62G  THR*     2.9    36.9    +      -       +      +
     63G  ALA*     3.7     3.4    -      -       -      +
     65G  VAL*     1.3    73.5    -      -       -      +
     67G  GLU*     1.3    55.3    +      -       -      +
     69G  ALA*     4.5     1.3    -      -       -      +
     70G  GLY*     2.7    31.0    +      -       -      -
     81G  ILE*     4.0    20.7    -      -       +      +
     86G  LEU*     5.1     3.8    -      -       +      -
     41H  VAL*     3.6    28.5    -      -       +      +
     44H  VAL*     4.3     3.8    -      -       +      -
     45H  LEU*     3.8    24.0    -      -       +      +
     48H  VAL*     4.0    11.4    -      -       +      -
     49H  HIS*     3.4     9.4    -      -       -      -
     54H  ILE*     4.5     9.9    -      -       +      -
     62H  MET*     4.3    25.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 67 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63G  ALA      2.7    22.5    +      -       -      +
     64G  GLU*     3.6    12.1    -      -       -      +
     66G  LEU*     1.3    72.3    -      -       -      +
     68G  LEU*     1.3    67.4    +      -       +      +
     71G  ASN*     3.1    33.2    +      -       -      +
     48H  VAL*     3.8    20.5    -      -       +      +
     49H  HIS*     3.0    37.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 68 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64G  GLU*     3.1    25.5    +      -       -      +
     65G  VAL*     3.9     2.5    -      -       -      +
     67G  GLU*     1.3    82.5    -      -       +      +
     69G  ALA*     1.3    58.6    +      -       -      +
     71G  ASN*     3.4    19.6    +      -       +      +
     72G  ALA*     3.1    21.1    +      -       -      +
     89G  ALA*     3.5    22.4    -      -       +      +
     93G  ASP*     3.8    26.2    -      -       +      +
     96G  LEU*     3.4    29.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 69 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65G  VAL      2.8    17.0    +      -       -      +
     66G  LEU*     4.1     0.4    -      -       -      +
     68G  LEU*     1.3    73.8    -      -       -      +
     70G  GLY*     1.3    61.1    +      -       -      +
     72G  ALA*     3.2     3.9    +      -       -      +
     73G  SER*     3.0    28.1    +      -       -      -
     81G  ILE*     3.9    19.4    -      -       +      +
     85G  HIS*     3.9    16.1    -      -       -      +
     86G  LEU*     3.6    27.4    -      -       +      -
     89G  ALA*     3.4    10.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 70 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66G  LEU      2.7    22.9    +      -       -      -
     69G  ALA*     1.3    74.0    -      -       -      +
     71G  ASN*     1.3    59.5    +      -       -      +
     73G  SER*     2.9    20.5    +      -       -      -
     74G  LYS*     2.9    28.0    +      -       -      +
     81G  ILE*     3.6     8.9    -      -       -      +
     49H  HIS*     3.5    14.6    -      -       -      -
     52H  THR*     4.6     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 71 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67G  GLU*     3.1    33.4    +      -       -      +
     68G  LEU*     3.6    21.5    -      -       -      +
     69G  ALA      3.3     0.4    -      -       -      -
     70G  GLY*     1.3    71.7    -      -       -      +
     72G  ALA*     1.3    62.7    +      -       -      +
     74G  LYS*     3.8     6.3    -      -       -      +
     75G  ASP*     2.9    43.8    +      -       -      +
     49H  HIS*     3.2    17.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 72 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68G  LEU      3.1    12.8    +      -       -      +
     69G  ALA      3.2     9.6    +      -       -      +
     71G  ASN*     1.3    78.4    -      -       -      +
     73G  SER*     1.3    59.3    +      -       -      +
     75G  ASP*     3.6     7.3    +      -       -      +
     76G  LEU*     3.3    28.6    +      -       -      +
     85G  HIS*     3.9    27.6    -      -       +      +
     88G  LEU*     4.4    16.3    -      -       +      +
     89G  ALA*     4.8     2.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 73 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69G  ALA      3.0    10.3    +      -       -      -
     70G  GLY*     2.9    20.6    +      -       -      -
     72G  ALA*     1.3    74.5    -      -       -      +
     74G  LYS*     1.3    63.2    +      -       -      +
     76G  LEU      3.3     1.4    +      -       -      +
     77G  LYS      3.1     5.0    +      -       -      -
     78G  VAL*     2.9    42.4    +      -       -      +
     80G  ARG      4.2     4.9    -      -       -      -
     81G  ILE*     3.9     8.4    -      -       -      +
     85G  HIS*     3.4    34.5    -      -       -      -
     52H  THR*     4.1     6.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 74 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70G  GLY      2.9    30.0    +      -       -      +
     71G  ASN*     3.9     6.5    -      -       -      +
     73G  SER*     1.3    79.1    +      -       -      +
     75G  ASP*     1.3    57.3    +      -       -      +
     76G  LEU      3.1     0.9    -      -       -      -
     77G  LYS*     2.7    47.3    +      -       -      +
     78G  VAL      4.3     7.0    -      -       -      +
     49H  HIS*     2.6    41.0    +      -       +      +
     51H  ASP*     3.2    30.3    -      -       -      +
     52H  THR*     2.9    21.4    +      -       -      +
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Residues in contact with ASP 75 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71G  ASN*     2.9    29.3    +      -       -      +
     72G  ALA*     3.9     7.4    -      -       -      +
     74G  LYS*     1.3    78.4    -      -       -      +
     76G  LEU*     1.3    63.4    +      -       +      +
     77G  LYS*     3.3     4.3    -      -       -      +
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il