Contacts of the helix formed by residues 65 - 95 (chain A) in PDB entry 3BFR


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 SER 65 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  LEU*     3.9     1.1    -      -       -      +
     63A  GLU*     2.8    19.2    +      -       -      -
     64A  PRO*     1.3    74.3    -      -       -      +
     66A  PRO*     1.3    69.5    -      -       -      +
     67A  ALA*     3.8     8.2    +      -       -      +
     68A  ASN*     3.2    31.0    +      -       -      +
     69A  ALA*     3.0    27.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 66 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  PRO      4.4     2.0    -      -       -      +
     65A  SER*     1.3    89.1    -      -       -      +
     67A  ALA*     1.3    55.5    +      -       -      +
     69A  ALA*     3.5     9.3    -      -       +      +
     70A  ARG*     3.1    27.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 67 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65A  SER*     3.2     8.9    -      -       -      +
     66A  PRO*     1.3    81.0    -      -       -      +
     68A  ASN*     1.3    63.9    +      -       -      +
     70A  ARG*     3.4    18.7    +      -       -      +
     71A  LYS*     3.6    18.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 68 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59A  LEU*     3.3    32.5    +      -       +      +
     60A  LEU*     3.3    29.8    -      -       +      +
     63A  GLU*     2.8    52.1    +      -       -      +
     65A  SER*     3.2    15.1    +      -       -      +
     67A  ALA*     1.3    77.5    -      -       -      +
     69A  ALA*     1.3    64.8    +      -       -      +
     71A  LYS*     3.1    28.2    +      -       -      +
     72A  MET*     3.4     6.1    +      -       -      +
----------------------------------------------------------
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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
----------------------------------------------------------
     60A  LEU*     4.0     9.6    -      -       +      +
     65A  SER      3.0    13.6    +      -       -      +
     66A  PRO*     3.5    13.9    -      -       +      +
     68A  ASN*     1.3    76.6    -      -       -      +
     70A  ARG*     1.3    61.0    +      -       -      +
     72A  MET*     3.1    13.1    +      -       -      +
     73A  ILE*     3.1    31.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 70 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66A  PRO      3.1    14.3    +      -       -      +
     67A  ALA*     3.5    12.3    -      -       -      +
     68A  ASN      3.3     0.4    -      -       -      -
     69A  ALA*     1.3    75.7    -      -       -      +
     71A  LYS*     1.3    56.0    +      -       -      +
     73A  ILE*     3.3    16.9    +      -       +      +
     74A  ALA*     3.1    24.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 71 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  LEU*     3.7    29.4    -      -       +      -
     59A  LEU*     4.4     6.6    -      -       +      +
     67A  ALA*     3.6    17.9    +      -       -      +
     68A  ASN*     3.1    35.7    +      -       -      +
     70A  ARG*     1.3    75.7    -      -       -      +
     72A  MET*     1.3    63.8    +      -       -      +
     73A  ILE      3.3     0.2    -      -       -      -
     74A  ALA*     3.5     8.7    +      -       +      +
     75A  ILE*     3.3    28.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 72 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  PHE*     2.9    47.3    -      -       +      +
     56A  LEU*     3.8    15.3    -      -       +      -
     57A  SER*     3.9    22.4    -      -       -      +
     60A  LEU*     3.6    28.9    -      -       +      -
     68A  ASN      3.4    13.8    +      -       -      +
     69A  ALA*     3.1    11.8    +      -       -      +
     71A  LYS*     1.3    76.2    -      -       -      +
     73A  ILE*     1.3    64.5    +      -       +      +
     75A  ILE*     3.3     3.1    +      -       -      +
     76A  GLN*     2.9    34.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 73 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69A  ALA*     3.1    21.6    +      -       +      +
     70A  ARG*     3.5    15.7    -      -       -      +
     71A  LYS      3.3     0.2    -      -       -      -
     72A  MET*     1.3    76.6    -      -       +      +
     74A  ALA*     1.3    63.2    +      -       -      +
     76A  GLN*     3.2    25.1    +      -       +      +
     77A  GLN*     4.1     3.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 74 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70A  ARG      3.1    12.4    +      -       -      +
     71A  LYS*     3.6    13.7    -      -       +      +
     73A  ILE*     1.3    79.5    -      -       -      +
     75A  ILE*     1.3    63.5    +      -       +      +
     76A  GLN      3.6     0.2    +      -       -      -
     77A  GLN*     3.9    13.5    +      -       -      +
     78A  ASN*     4.6     6.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 75 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  ALA*     3.6    28.9    -      -       +      +
     52A  GLN*     3.4    33.9    -      -       +      +
     53A  PHE*     4.4     5.6    -      -       +      +
     56A  LEU*     3.7    18.4    -      -       +      -
     71A  LYS*     3.3    15.0    -      -       +      +
     72A  MET      3.3     7.4    +      -       -      +
     73A  ILE      3.2     0.8    -      -       -      -
     74A  ALA*     1.3    76.0    -      -       +      +
     76A  GLN*     1.3    66.6    +      -       -      +
     77A  GLN      3.2     2.7    -      -       -      -
     78A  ASN*     3.2    23.5    +      -       +      +
     79A  ILE*     3.2    18.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 76 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  PHE*     3.6    32.3    -      -       -      -
     72A  MET*     2.9    27.8    +      -       -      +
     73A  ILE*     3.2    17.8    +      -       +      +
     75A  ILE*     1.3    76.9    -      -       -      +
     77A  GLN*     1.3    57.8    +      -       -      +
     79A  ILE*     3.2    20.4    +      -       -      +
     80A  LYS*     3.0    29.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 77 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  ILE      4.1     2.7    +      -       -      +
     74A  ALA      3.9    10.4    +      -       -      +
     75A  ILE      3.2     0.8    -      -       -      -
     76A  GLN*     1.3    77.7    -      -       -      +
     78A  ASN*     1.3    64.5    +      -       -      +
     80A  LYS*     3.3    37.3    +      -       -      +
     81A  PHE*     2.9    41.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 78 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  ALA*     4.0    14.3    -      -       +      +
     52A  GLN*     5.0     4.0    +      -       -      -
     74A  ALA      4.9     8.3    +      -       -      -
     75A  ILE*     3.2    22.0    +      -       +      +
     77A  GLN*     1.3    82.1    -      -       -      +
     79A  ILE*     1.3    58.8    +      -       -      +
     81A  PHE*     4.5     4.0    -      -       -      +
     82A  HIS*     3.0    53.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 79 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46A  PHE*     3.8    21.2    -      -       +      -
     49A  ALA*     3.6    24.0    -      -       +      +
     50A  VAL*     4.5     6.7    -      -       +      +
     53A  PHE*     4.0    24.5    -      -       +      -
     75A  ILE*     3.2    17.4    +      -       +      +
     76A  GLN*     3.2    35.6    +      -       -      +
     78A  ASN*     1.3    74.5    -      -       -      +
     80A  LYS*     1.3    60.1    +      -       -      +
     83A  GLY*     2.8    30.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 80 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76A  GLN      3.0    15.9    +      -       -      +
     77A  GLN*     3.3    37.8    +      -       -      +
     79A  ILE*     1.3    77.4    -      -       -      +
     81A  PHE*     1.3    64.6    +      -       -      +
     84A  GLY*     2.8    28.4    +      -       -      -
    161A  ASN*     5.9     1.6    +      -       -      +
    162A  GLN      4.2     2.4    -      -       -      +
    163A  ASP*     3.0    35.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 81 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  TYR*     3.6    26.6    -      +       -      -
     77A  GLN*     2.9    36.1    +      -       +      +
     78A  ASN*     4.3     4.7    -      -       -      +
     80A  LYS*     1.3    79.9    -      -       -      +
     82A  HIS*     1.3    83.5    +      +       -      +
     85A  GLY*     2.8    23.9    +      -       -      -
    161A  ASN*     4.5     8.1    -      -       +      -
    162A  GLN*     3.2    41.1    -      -       +      +
    178A  TRP*     4.0    23.8    -      +       -      -
----------------------------------------------------------
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Residues in contact with HIS 82 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  THR*     4.2    13.7    -      -       +      -
     42A  TYR*     3.6    27.7    -      +       -      +
     45A  GLY*     3.5    28.3    -      -       -      -
     46A  PHE*     3.3    22.4    -      -       -      +
     78A  ASN*     3.0    42.1    +      -       +      +
     81A  PHE*     1.3    96.5    -      +       -      +
     83A  GLY*     1.3    61.4    +      -       -      +
     85A  GLY*     3.3     0.7    +      -       -      +
     86A  PHE*     2.8    30.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 83 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46A  PHE*     3.4    28.3    -      -       -      -
     79A  ILE      2.8    20.1    +      -       -      -
     80A  LYS      4.0     0.2    -      -       -      -
     82A  HIS*     1.3    77.0    -      -       -      +
     84A  GLY*     1.3    55.2    +      -       -      +
     86A  PHE*     3.3     4.7    +      -       -      +
     87A  THR*     2.9    33.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 84 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80A  LYS      2.8    15.3    +      -       -      -
     83A  GLY*     1.3    72.4    -      -       -      +
     85A  GLY*     1.3    57.8    +      -       -      +
     87A  THR*     3.5     9.4    -      -       -      -
     88A  ASN*     2.8    37.1    +      -       -      +
    162A  GLN*     3.2    26.0    -      -       -      -
    164A  THR*     4.9     6.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 85 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  HIS*     3.9     0.5    -      -       -      -
     42A  TYR*     3.6    27.5    -      -       -      -
     81A  PHE      2.8    17.6    +      -       -      -
     82A  HIS      3.3     0.6    +      -       -      -
     84A  GLY*     1.3    72.4    -      -       -      +
     86A  PHE*     1.3    63.3    +      -       -      +
     89A  HIS*     2.7    28.9    +      -       -      +
    162A  GLN*     3.5    19.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 86 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  VAL*     3.5    40.8    -      -       +      -
     11A  THR      3.3    26.7    -      -       -      -
     39A  HIS*     3.1    27.9    -      +       -      -
     42A  TYR*     3.6    11.0    -      -       +      +
     43A  VAL*     3.8    12.6    -      -       +      -
     46A  PHE*     4.3    14.1    -      +       +      -
     82A  HIS      2.8    16.5    +      -       -      +
     83A  GLY*     3.6     7.0    -      -       -      +
     85A  GLY*     1.3    75.6    -      -       -      +
     87A  THR*     1.3    69.4    +      -       -      +
     90A  CYS*     3.2    35.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 87 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83A  GLY      2.9    23.8    +      -       -      +
     84A  GLY*     3.3    13.7    -      -       -      +
     86A  PHE*     1.3    82.6    -      -       -      +
     88A  ASN*     1.3    75.2    +      -       -      +
     90A  CYS*     3.2     8.0    +      -       -      +
     91A  LEU*     3.0    36.4    +      -       -      +
    164A  THR*     4.4    14.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 88 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  GLY      2.8    23.9    +      -       -      +
     85A  GLY      4.4     0.9    -      -       -      +
     87A  THR*     1.3    74.1    -      -       -      +
     89A  HIS*     1.3    56.8    +      -       -      +
     91A  LEU*     3.4     9.5    +      -       -      +
     92A  PHE*     2.9    26.7    +      -       -      +
    141A  TRP*     3.4    33.6    -      -       +      +
    143A  PHE*     3.3    17.4    -      -       -      -
    162A  GLN*     3.4    21.6    +      -       -      +
    163A  ASP      3.2    22.8    +      -       -      -
    164A  THR*     2.8    25.3    +      -       -      -
    174A  ALA*     4.4     0.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 89 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  HIS*     3.1    22.9    +      +       -      -
     38A  HIS*     5.1     0.8    -      -       -      +
     39A  HIS*     3.4    29.6    -      +       +      +
     42A  TYR*     3.4    28.2    -      +       -      -
     85A  GLY      2.7    20.3    +      -       -      -
     87A  THR      3.3     0.4    -      -       -      -
     88A  ASN*     1.3    74.1    -      -       -      +
     90A  CYS*     1.3    64.8    +      -       -      +
     92A  PHE*     3.4     6.0    -      +       -      +
     93A  TRP*     3.0    42.4    +      +       -      +
    141A  TRP*     3.7    13.1    -      +       -      -
    162A  GLN*     3.5    12.8    -      -       -      -
    176A  ASP*     3.4     2.2    +      -       -      -
    180A  HIS*     3.9     0.2    +      -       -      -
    216A  MN3      2.1    37.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 90 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  PRO*     4.0    19.2    -      -       +      +
     39A  HIS*     3.6    11.2    +      -       -      -
     86A  PHE*     3.2    50.2    +      -       -      +
     87A  THR*     3.2    11.1    +      -       -      +
     89A  HIS*     1.3    76.5    -      -       -      +
     91A  LEU*     1.3    62.2    +      -       +      +
     93A  TRP*     3.6     6.0    +      -       -      +
     94A  GLU*     3.3    29.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 91 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87A  THR*     3.0    29.1    +      -       -      +
     88A  ASN*     3.5    13.0    -      -       -      +
     90A  CYS*     1.3    75.4    -      -       +      +
     92A  PHE*     1.3    63.1    +      -       -      +
     94A  GLU*     3.3     1.3    +      -       -      -
     95A  ASN*     2.8    30.7    +      -       -      +
    143A  PHE*     4.3    15.7    -      -       +      -
    164A  THR*     4.7     3.8    -      -       -      +
    171A  PRO*     3.8    37.5    -      -       +      -
    174A  ALA*     4.1     9.6    -      -       +      -
    209A  ARG*     3.6    32.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 92 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  ILE*     4.9     4.7    -      -       +      -
     31A  ASN*     5.7     0.7    -      -       -      -
     34A  HIS*     3.7    28.5    -      +       -      -
     88A  ASN      2.9    15.0    +      -       -      +
     89A  HIS*     3.2    13.4    +      +       -      +
     91A  LEU*     1.3    75.4    -      -       -      +
     93A  TRP*     1.3    87.8    +      +       -      +
     95A  ASN*     3.2    16.7    +      -       -      +
     96A  LEU*     3.3    40.1    -      -       +      +
    141A  TRP*     3.9     8.7    -      +       +      -
    174A  ALA*     3.2    21.5    -      -       -      -
    175A  ILE*     4.0     0.2    -      -       -      -
    176A  ASP*     3.5    25.8    -      -       +      -
    193A  TYR*     3.7    19.5    -      -       -      -
    197A  ILE*     3.8    19.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP 93 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  PRO*     3.8    18.8    -      -       +      -
     16A  LYS*     6.1     0.9    -      -       -      +
     17A  TRP*     3.9    31.8    +      +       +      -
     31A  ASN*     3.8    21.5    -      -       +      -
     34A  HIS*     3.5    41.3    -      +       +      -
     35A  TYR*     3.9    38.1    -      +       +      -
     39A  HIS*     3.0    27.0    -      +       -      -
     89A  HIS*     3.0    29.6    +      +       +      -
     90A  CYS*     4.2     2.5    -      -       -      +
     92A  PHE*     1.3    93.9    -      +       -      +
     94A  GLU*     1.3    63.0    +      -       +      +
     96A  LEU*     3.1    29.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 94 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  PRO*     6.0     4.0    -      -       +      +
     14A  ASP      5.5     2.3    -      -       -      +
     16A  LYS*     3.3    37.8    +      -       -      +
     90A  CYS      3.3    17.9    +      -       -      +
     91A  LEU*     3.8     4.0    -      -       -      +
     92A  PHE      3.2     0.6    -      -       -      -
     93A  TRP*     1.3    82.4    -      -       +      +
     95A  ASN*     1.3    57.1    +      -       -      +
     96A  LEU      3.3     3.8    +      -       -      +
    202A  ASN*     3.9     9.0    +      -       -      -
    205A  GLU*     3.2    34.3    -      -       +      +
    209A  ARG*     4.0    11.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 95 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91A  LEU      2.8    26.7    +      -       -      -
     92A  PHE*     3.2     6.5    +      -       -      +
     94A  GLU*     1.3    74.8    -      -       -      +
     96A  LEU*     1.3    62.0    +      -       -      +
    172A  LEU      4.3     5.2    -      -       -      +
    173A  VAL*     3.9    11.4    -      -       +      +
    174A  ALA*     2.9    40.8    +      -       -      +
    175A  ILE*     4.8     1.0    -      -       -      +
    201A  VAL*     3.5     8.5    -      -       -      +
    202A  ASN*     2.8    34.9    +      -       -      +
    205A  GLU*     4.4     1.3    -      -       +      -
    209A  ARG*     2.7    32.9    -      -       -      +
----------------------------------------------------------
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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