Contacts of the helix formed by residues 82 - 105 (chain C) in PDB entry 4B8Z


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 TYR 82 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160A  GLN*     3.5    15.3    -      -       -      -
     72C  MET*     4.7     4.9    -      -       +      -
     78C  ARG*     3.0    48.2    +      -       +      +
     79C  ASN      3.4     4.2    +      -       -      -
     81C  LYS*     1.4   109.1    -      -       +      +
     83C  ASN*     1.3    58.0    +      -       -      +
     84C  LEU      3.4     2.7    -      -       -      -
     85C  ASP*     3.7    23.8    -      -       +      +
     86C  PHE*     3.0    31.6    +      -       +      -
    184C  ASP*     4.9     4.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 83 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156A  ALA*     4.6     4.8    -      -       +      +
    160A  GLN*     3.1     5.1    +      -       -      +
     79C  ASN*     2.8    22.8    +      -       -      +
     80C  ILE*     3.7    11.7    +      -       -      +
     81C  LYS      4.0     0.6    -      -       -      -
     82C  TYR*     1.3    73.1    -      -       -      +
     84C  LEU*     1.3    64.2    +      -       -      +
     86C  PHE*     4.5     4.0    -      -       -      -
     87C  TRP*     3.2    23.6    +      -       -      +
    138C  ASN      4.2     2.4    +      -       -      -
    139C  SER      3.3    10.5    +      -       -      -
    140C  ASN*     3.4     7.1    -      -       -      -
    141C  PHE*     3.2    44.7    +      -       +      -
    142C  GLY*     3.1    28.8    +      -       -      +
    143C  TYR      4.6     0.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 84 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99A  HIS*     4.6     7.4    -      -       +      -
    102A  PHE*     5.6     0.7    -      -       +      -
    153A  GLN*     4.8     0.9    -      -       +      +
    156A  ALA*     3.9    30.8    -      -       +      +
    157A  TYR*     4.0    43.5    -      -       +      -
    160A  GLN*     2.8    26.5    +      -       -      +
    161A  TYR*     4.2    17.7    -      -       +      +
     83C  ASN*     1.3    71.8    -      -       -      +
     85C  ASP*     1.3    58.5    +      -       -      +
     87C  TRP*     3.2     9.5    +      -       +      +
     88C  ARG*     2.8    63.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 85 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160A  GLN*     3.2    26.7    +      -       -      -
    161A  TYR*     4.4     5.9    +      -       -      -
     72C  MET*     3.6    20.4    -      -       +      -
     82C  TYR*     3.6    17.0    +      -       +      +
     83C  ASN      3.4     0.2    -      -       -      -
     84C  LEU*     1.3    82.3    -      -       -      +
     86C  PHE*     1.4    56.9    +      -       -      +
     88C  ARG*     4.8     2.5    -      -       -      -
     89C  LYS*     3.0    60.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 86 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72C  MET*     3.2    54.5    -      -       +      -
     73C  VAL*     4.0     0.7    -      -       -      -
     74C  GLY*     3.5    25.6    -      -       -      -
     78C  ARG*     3.5    39.5    -      -       +      -
     79C  ASN*     3.2    31.9    -      -       -      +
     82C  TYR*     3.0    27.9    +      -       +      +
     83C  ASN*     4.1     4.7    -      -       -      +
     84C  LEU      3.4     0.2    -      -       -      -
     85C  ASP*     1.4    76.9    -      -       -      +
     87C  TRP*     1.4    57.1    +      -       -      +
     90C  ASN*     2.7    33.9    +      -       -      +
    143C  TYR*     3.8    28.8    -      +       +      +
    146C  ALA*     4.0     2.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 87 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87A  TRP*     5.2     2.0    -      +       -      -
     91A  VAL*     5.8     4.9    -      -       +      -
     95A  ASP*     5.2     4.2    +      -       -      +
    149A  MET*     3.5    44.9    -      -       +      -
    152A  VAL*     4.4    10.8    -      -       +      -
    153A  GLN*     4.3    20.2    -      -       +      +
    156A  ALA*     5.4     2.9    -      -       +      -
     83C  ASN      3.2    18.7    +      -       -      +
     84C  LEU*     3.6    13.2    -      -       +      +
     86C  PHE*     1.4    75.7    -      -       -      +
     88C  ARG*     1.4    84.1    +      -       +      +
     91C  VAL*     3.1    65.7    +      -       +      +
    141C  PHE*     6.4     0.2    -      -       +      -
    142C  GLY*     3.6    19.7    -      -       -      +
    145C  TYR*     3.7    18.8    -      -       +      -
    146C  ALA*     3.5    30.5    -      -       -      +
    149C  MET*     4.2     4.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 88 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  ASP*     2.9    46.1    +      -       -      +
     99A  HIS*     3.3    57.3    +      -       -      +
    157A  TYR*     3.8     7.4    -      -       -      -
     84C  LEU*     2.8    33.3    +      -       +      +
     85C  ASP*     4.4     2.5    -      -       -      +
     87C  TRP*     1.4    83.5    -      -       +      +
     89C  LYS*     1.4    62.6    +      -       +      +
     91C  VAL*     3.4     3.8    +      -       -      +
     92C  HIS*     2.7    49.0    +      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 89 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49C  THR*     3.7    17.4    -      -       +      +
     72C  MET*     3.8    31.3    -      -       +      +
     78C  ARG*     5.8     1.6    -      -       -      +
     85C  ASP*     3.0    43.9    +      -       -      +
     88C  ARG*     1.4    75.6    -      -       +      +
     90C  ASN*     1.4    58.1    +      -       -      +
     92C  HIS*     3.7     2.5    +      -       -      +
     93C  MET*     3.2    41.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 90 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71C  ALA*     3.4    11.9    -      -       +      -
     72C  MET*     2.6    39.1    +      -       -      +
     86C  PHE*     2.7    25.8    +      -       -      +
     87C  TRP      3.7     0.8    +      -       -      -
     88C  ARG      3.3     0.8    -      -       -      -
     89C  LYS*     1.4    73.8    -      -       -      +
     91C  VAL*     1.4    55.9    +      -       -      +
     93C  MET*     3.3     5.8    +      -       -      +
     94C  ASN*     2.8    46.8    +      -       -      +
    143C  TYR*     3.5    32.9    -      -       -      +
    146C  ALA*     3.7    13.3    -      -       +      +
    147C  LYS*     4.7     3.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 91 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87A  TRP*     5.9     3.6    -      -       +      -
     91A  VAL*     4.2    25.1    -      -       +      -
     95A  ASP*     6.2     4.3    -      -       +      -
     87C  TRP*     3.1    63.8    +      -       +      +
     88C  ARG*     3.9     4.7    -      -       -      +
     90C  ASN*     1.4    73.5    -      -       -      +
     92C  HIS*     1.3    63.5    +      -       +      +
     94C  ASN*     3.9     5.7    -      -       -      +
     95C  ASP*     3.0    33.7    +      -       +      +
    146C  ALA*     4.0    11.7    -      -       +      +
    149C  MET*     5.3     4.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 92 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92A  HIS*     6.3     3.1    -      +       -      -
     95A  ASP*     3.0    32.8    +      -       -      -
     96A  ASN*     5.7     1.0    +      -       -      -
     49C  THR*     4.0    28.9    -      -       +      +
     51C  THR*     6.1     1.1    -      -       -      -
     88C  ARG*     2.7    57.1    +      -       +      +
     89C  LYS*     3.8     6.1    +      -       -      +
     91C  VAL*     1.3    80.1    -      -       +      +
     93C  MET*     1.4    56.7    +      -       -      +
     95C  ASP*     3.9     2.9    -      -       -      +
     96C  ASN*     3.0    40.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 93 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48C  LEU*     3.4    30.5    -      -       +      -
     49C  THR*     3.8     8.3    -      -       +      -
     68C  HIS*     4.3     3.1    -      -       +      -
     70C  ALA*     4.1    11.9    -      -       -      +
     71C  ALA*     3.8    14.8    -      -       -      -
     72C  MET*     3.7    27.4    -      -       +      +
     89C  LYS*     3.2    36.1    +      -       +      +
     90C  ASN*     3.6     5.8    -      -       -      +
     92C  HIS*     1.4    77.3    -      -       -      +
     94C  ASN*     1.3    57.9    +      -       -      +
     96C  ASN*     4.0     0.7    -      -       -      +
     97C  VAL*     3.1    35.9    +      -       -      +
    900C  NAP      3.5    36.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 94 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68C  HIS*     2.8    30.4    +      -       +      -
     70C  ALA      4.4     3.8    -      -       -      +
     71C  ALA*     5.5     0.9    -      -       -      +
     90C  ASN*     2.8    36.6    +      -       -      +
     91C  VAL*     3.9     5.8    -      -       -      +
     93C  MET*     1.3    70.4    -      -       -      +
     95C  ASP*     1.3    58.6    +      -       -      +
     97C  VAL*     3.5     1.4    +      -       -      +
     98C  LEU*     2.9    42.0    +      -       +      +
    146C  ALA      3.5    25.7    +      -       -      -
    147C  LYS*     4.9     5.8    +      -       -      +
    150C  ILE*     3.5    30.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 95 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87A  TRP*     5.3     3.3    +      -       -      +
     88A  ARG*     2.8    45.9    +      -       -      +
     91A  VAL*     6.2     3.1    -      -       +      -
     92A  HIS*     2.9    25.0    +      -       -      -
     91C  VAL*     3.0    21.9    +      -       +      +
     92C  HIS*     4.0     4.0    -      -       -      +
     94C  ASN*     1.3    75.0    -      -       -      +
     96C  ASN*     1.3    64.8    +      -       -      +
     98C  LEU*     4.8     4.7    -      -       -      +
     99C  HIS*     3.0    30.1    +      -       -      +
    157C  TYR*     4.9     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 96 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92A  HIS*     5.7     0.3    +      -       -      -
     48C  LEU      2.9    27.5    +      -       -      +
     49C  THR      3.0    24.0    +      -       -      -
     51C  THR*     3.1    41.0    +      -       +      +
     54C  THR*     3.4    15.2    -      -       +      +
     92C  HIS*     3.0    21.9    +      -       -      +
     93C  MET      4.0     0.2    -      -       -      +
     95C  ASP*     1.3    83.1    -      -       -      +
     97C  VAL*     1.4    56.2    +      -       -      +
     99C  HIS*     4.8     1.3    -      -       -      +
    100C  SER*     2.7    36.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 97 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11C  LEU*     6.2     0.9    -      -       +      -
     13C  THR*     4.2    13.7    -      -       +      -
     48C  LEU*     3.7    33.0    -      -       +      -
     54C  THR*     4.2     4.9    -      -       +      -
     66C  VAL*     4.3    11.9    -      -       +      -
     68C  HIS*     3.5    44.9    -      -       +      +
     93C  MET      3.1    21.3    +      -       -      +
     94C  ASN      4.1     1.8    -      -       -      +
     96C  ASN*     1.4    74.4    -      -       -      +
     98C  LEU*     1.3    60.9    +      -       +      +
    100C  SER*     3.5     1.9    +      -       -      -
    101C  ALA*     3.1    29.2    +      -       +      +
    109C  VAL*     5.2     2.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 98 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68C  HIS*     5.5     1.8    -      -       +      -
     94C  ASN*     2.9    29.1    +      -       +      +
     95C  ASP*     4.3     3.4    -      -       -      +
     97C  VAL*     1.3    79.0    -      -       +      +
     99C  HIS*     1.4    60.4    +      -       -      +
    101C  ALA*     3.6     1.7    +      -       -      +
    102C  PHE*     3.2    17.0    +      -       -      +
    109C  VAL*     3.7    13.9    -      -       +      -
    111C  SER*     3.7    21.5    -      -       -      +
    150C  ILE*     4.5    15.3    -      -       +      +
    153C  GLN*     3.8    28.5    -      -       +      -
    154C  ASN*     4.0    11.9    -      -       -      +
    157C  TYR*     3.9    14.1    +      -       +      +
    165C  PHE*     3.3    36.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 99 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  LEU*     4.7     5.2    -      -       +      -
     88A  ARG*     3.3    48.0    +      -       -      +
     95C  ASP      3.0    19.6    +      -       -      +
     96C  ASN*     4.8     1.1    -      -       -      +
     98C  LEU*     1.4    74.5    -      -       -      +
    100C  SER*     1.4    58.9    +      -       -      +
    102C  PHE*     3.3    26.2    +      +       -      +
    103C  GLU*     3.1    57.5    +      -       +      +
    157C  TYR*     2.7    27.2    +      +       -      +
----------------------------------------------------------
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Residues in contact with SER 100 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51C  THR*     5.0     2.3    +      -       -      +
     54C  THR*     3.7    14.4    -      -       -      +
     55C  ARG*     3.9    14.8    +      -       -      +
     58C  PHE*     3.9    22.0    -      -       -      -
     96C  ASN*     2.7    25.2    +      -       -      -
     97C  VAL*     3.9     2.9    -      -       -      -
     98C  LEU      3.4     0.2    -      -       -      -
     99C  HIS*     1.4    75.3    -      -       -      +
    101C  ALA*     1.4    58.0    +      -       -      +
    103C  GLU*     3.5    14.8    +      -       -      +
    104C  VAL*     3.2    36.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 101 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58C  PHE*     5.1     2.0    -      -       -      +
     63C  PRO*     6.1     2.2    -      -       -      -
     66C  VAL*     4.3    12.6    -      -       +      -
     97C  VAL      3.1    18.4    +      -       -      +
     98C  LEU*     3.7     5.6    -      -       -      +
    100C  SER*     1.4    75.2    -      -       -      +
    102C  PHE*     1.3    57.2    +      -       -      +
    104C  VAL*     4.0     3.7    -      -       -      -
    105C  GLY      3.2     6.1    +      -       -      -
    106C  ALA*     2.8    39.3    +      -       +      +
    109C  VAL*     3.6    30.3    -      -       +      -
    165C  PHE*     4.3     1.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 102 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  LEU*     5.6     0.7    -      -       +      -
     98C  LEU      3.2    14.1    +      -       -      +
     99C  HIS*     3.4    34.1    -      +       -      +
    100C  SER      3.3     0.4    -      -       -      -
    101C  ALA*     1.3    76.3    -      -       -      +
    103C  GLU*     1.4    62.5    +      -       +      +
    105C  GLY*     3.2    18.4    +      -       -      -
    106C  ALA      5.0     0.4    -      -       -      +
    157C  TYR*     3.6    23.8    -      +       +      -
    161C  TYR*     3.5    62.4    -      +       +      -
    163C  CYS*     3.7    16.6    -      -       -      -
    165C  PHE*     4.0     7.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 103 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55C  ARG*     4.8    10.0    -      -       -      +
     99C  HIS*     3.1    39.6    +      -       -      +
    100C  SER*     3.5    24.6    +      -       -      +
    102C  PHE*     1.4    81.5    -      -       +      +
    104C  VAL*     1.3    62.4    +      -       +      +
    105C  GLY*     4.7     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 104 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55C  ARG      5.4     0.9    -      -       -      +
     58C  PHE*     3.4    39.0    -      -       +      +
     59C  GLU*     4.4     5.8    -      -       +      +
     62C  GLN*     4.2    12.6    -      -       +      -
     63C  PRO*     3.8    25.7    -      -       +      +
    100C  SER      3.2    20.3    +      -       -      +
    101C  ALA*     4.3     3.8    -      -       -      +
    103C  GLU*     1.3    80.4    -      -       +      +
    105C  GLY*     1.3    60.5    +      -       -      +
    106C  ALA*     5.3     0.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 105 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63C  PRO      4.6     3.1    -      -       -      +
     64C  THR*     5.3     1.6    -      -       -      +
    101C  ALA      3.2     0.8    +      -       -      -
    102C  PHE*     3.2    16.2    +      -       -      -
    103C  GLU      3.3     0.8    -      -       -      -
    104C  VAL*     1.3    81.2    -      -       -      +
    106C  ALA*     1.3    64.4    +      -       -      +
    107C  ARG*     3.6     3.1    +      -       -      -
----------------------------------------------------------
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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