Contacts of the helix formed by residues 96 - 118 (chain V) in PDB entry 3MQT


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 GLY 96 (chain V).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93M  GLY      4.7     6.1    -      -       -      -
     95M  ARG*     3.5    17.8    -      -       -      +
     95V  ARG*     1.3    73.3    -      -       -      +
     97V  LEU*     1.3    56.3    +      -       -      +
     99V  LEU*     2.7    34.0    +      -       -      +
    100V  PHE*     3.5    15.1    +      -       -      -
    262V  THR*     3.0    20.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 97 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49M  CYS*     5.5     0.4    -      -       -      -
     53M  PHE*     4.0    32.3    -      -       +      -
     92M  ILE*     4.1    17.6    +      -       +      +
     95M  ARG      4.4     3.0    +      -       -      -
     97M  LEU*     4.3    25.2    -      -       +      +
     98M  GLY      5.1     0.7    -      -       -      +
     46V  PRO*     4.4    10.3    -      -       +      -
     49V  CYS*     4.3    10.5    -      -       -      -
     50V  MET*     3.6    32.2    -      -       +      +
     53V  PHE*     4.0    26.2    -      -       +      -
     95V  ARG      3.7     1.4    +      -       -      -
     96V  GLY*     1.3    69.9    -      -       -      -
     98V  GLY*     1.3    65.1    +      -       -      +
    100V  PHE*     3.0    34.8    +      -       +      +
    101V  ALA      3.5     2.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 98 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97M  LEU*     5.1     0.8    -      -       -      +
     53V  PHE*     3.7    29.0    -      -       -      -
     89V  THR*     5.6     0.4    +      -       -      -
     92V  ILE      4.2     5.2    +      -       -      -
     93V  GLY*     4.0    18.2    -      -       -      -
     95V  ARG      4.2     2.6    +      -       -      -
     96V  GLY      3.1     1.2    +      -       -      -
     97V  LEU*     1.3    78.7    -      -       -      +
     99V  LEU*     1.3    62.9    +      -       -      +
    101V  ALA*     3.4     7.1    +      -       -      +
    102V  ILE*     3.3    23.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 99 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82V  TYR*     3.5    24.9    -      -       -      +
     86V  TYR*     4.3     6.3    -      -       +      -
     94V  MET*     3.1    49.6    -      -       -      +
     95V  ARG*     3.4     9.0    -      -       -      +
     96V  GLY      2.7    18.1    +      -       -      +
     98V  GLY*     1.3    69.2    -      -       -      -
    100V  PHE*     1.3    56.8    +      -       -      -
    102V  ILE*     3.3    17.3    +      -       +      +
    103V  SER*     2.7    31.9    +      -       -      -
    262V  THR*     3.9     6.3    -      -       -      -
    263V  THR*     3.6    12.8    -      -       +      -
    285V  ARG      3.3    13.0    -      -       -      +
    286V  CYS      3.6    17.5    -      -       -      +
    287V  GLY*     3.8     7.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 100 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91M  TRP      3.6    11.4    -      -       -      -
     92M  ILE*     4.2    21.1    -      -       +      -
     93M  GLY      5.9     0.4    -      -       -      -
     43V  ALA*     3.2    10.3    -      -       -      +
     44V  ASP*     3.3    37.0    -      -       +      +
     45V  GLY*     3.9     4.7    -      -       -      -
     50V  MET*     3.9     2.0    -      -       +      -
     96V  GLY*     3.6    18.2    -      -       -      -
     97V  LEU*     3.0    30.7    +      -       +      +
     99V  LEU*     1.3    74.4    -      -       -      +
    101V  ALA*     1.3    62.8    +      -       -      +
    103V  SER*     3.2     4.5    +      -       -      -
    104V  GLY      3.1    18.0    +      -       -      -
    262V  THR*     4.0    12.1    -      -       +      -
    284V  ASN      3.6    12.0    -      -       -      +
    285V  ARG*     3.3    55.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 101 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12V  PHE*     3.7    25.0    -      -       +      -
     43V  ALA*     4.3     0.7    -      -       -      -
     50V  MET*     3.8     8.6    -      -       +      +
     53V  PHE*     3.5    32.1    -      -       +      -
     66V  ILE*     4.0     8.1    -      -       +      -
     97V  LEU      3.5     1.4    +      -       -      -
     98V  GLY      3.4    11.8    +      -       -      +
     99V  LEU      3.2     0.2    -      -       -      -
    100V  PHE*     1.3    77.4    -      -       -      +
    102V  ILE*     1.3    65.3    +      -       -      +
    103V  SER      3.4     0.2    +      -       -      -
    104V  GLY      3.4     1.7    +      -       -      -
    105V  ILE*     3.4    26.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 102 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66V  ILE*     3.7    21.3    -      -       +      -
     82V  TYR*     3.6    34.8    -      -       +      -
     85V  MET*     4.0    23.5    -      -       +      +
     86V  TYR*     3.8    35.7    -      -       +      +
     89V  THR*     4.3     7.0    -      -       -      +
     93V  GLY*     6.0     0.2    -      -       -      -
     94V  MET      5.7     1.8    -      -       -      +
     98V  GLY      3.3    12.7    +      -       -      +
     99V  LEU*     3.3    24.9    +      -       +      +
    101V  ALA*     1.3    76.2    -      -       -      +
    103V  SER*     1.3    58.0    +      -       -      +
    105V  ILE*     3.4     3.1    +      -       -      +
    106V  ASP*     2.9    27.4    +      -       -      +
    287V  GLY*     3.9     3.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 103 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42V  GLU      4.3     2.0    -      -       -      -
     99V  LEU      2.7    19.2    +      -       -      -
    100V  PHE      3.2     8.7    +      -       -      -
    102V  ILE*     1.3    73.6    -      -       -      +
    104V  GLY*     1.3    66.6    +      -       -      +
    106V  ASP*     3.8     0.3    -      -       -      +
    107V  MET*     2.9    27.2    +      -       -      +
    283V  TYR      3.6     7.6    -      -       -      +
    284V  ASN*     3.4    24.9    -      -       -      -
    285V  ARG      3.2     8.1    -      -       -      -
    287V  GLY      2.8    32.8    +      -       -      -
    288V  GLY*     3.8     3.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 104 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29V  VAL*     3.7    15.7    -      -       -      +
     41V  GLY*     3.8     5.0    -      -       -      -
     42V  GLU      3.3    28.1    +      -       -      -
     43V  ALA*     4.0     2.5    -      -       -      -
    100V  PHE      3.1     8.9    +      -       -      -
    101V  ALA      3.4     2.4    +      -       -      -
    102V  ILE      3.4     0.2    -      -       -      -
    103V  SER*     1.3    81.0    -      -       -      +
    105V  ILE*     1.3    61.4    +      -       -      +
    107V  MET*     3.4     3.3    +      -       -      +
    108V  ALA*     3.1    22.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 105 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10V  VAL*     4.2     8.7    -      -       +      -
     12V  PHE*     3.9    20.6    -      -       +      -
     29V  VAL*     3.8    10.8    -      -       +      -
     31V  VAL*     4.3     9.9    -      -       +      -
     66V  ILE*     3.5    46.2    -      -       +      +
     67V  LYS*     5.1     2.7    -      -       -      +
     70V  VAL*     4.3    14.6    -      -       +      -
     85V  MET*     3.6    22.7    -      -       -      -
    101V  ALA      3.4     8.7    +      -       -      +
    102V  ILE      3.9     0.9    -      -       -      +
    104V  GLY*     1.3    71.5    -      -       -      +
    106V  ASP*     1.3    67.7    +      -       -      +
    108V  ALA*     3.0     4.3    +      -       -      +
    109V  LEU*     2.9    43.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 106 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78V  PHE*     4.6     4.2    -      -       -      +
     82V  TYR*     4.2     9.4    +      -       -      +
     85V  MET*     4.1     8.0    -      -       +      +
    102V  ILE*     2.9    19.5    +      -       +      +
    103V  SER      3.8     2.2    -      -       -      +
    105V  ILE*     1.3    75.7    -      -       -      +
    107V  MET*     1.3    61.2    +      -       -      +
    109V  LEU*     3.2    22.3    +      -       -      +
    110V  TYR*     3.2    24.6    +      -       -      -
    287V  GLY      3.7    15.5    -      -       -      +
    288V  GLY      3.5     0.5    -      -       -      -
    289V  VAL      3.0    14.4    +      -       -      -
    290V  THR*     2.6    48.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 107 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40V  LEU      4.0     2.3    -      -       -      +
     41V  GLY*     3.7     9.6    -      -       -      -
     42V  GLU      3.6    30.7    -      -       -      +
    103V  SER      2.9    15.5    +      -       -      +
    104V  GLY      3.6     4.5    -      -       -      +
    106V  ASP*     1.3    76.2    +      -       -      +
    108V  ALA*     1.3    62.0    +      -       -      +
    109V  LEU      3.3     0.5    +      -       -      -
    110V  TYR*     3.3    18.2    +      -       -      +
    111V  ASP      3.4     8.0    +      -       -      -
    283V  TYR*     3.8    38.6    -      -       +      +
    284V  ASN*     4.3     0.7    -      -       +      -
    289V  VAL*     4.9    11.0    -      -       +      +
    315V  ILE*     4.0    16.4    -      -       -      +
    316V  THR*     4.0    12.8    -      -       -      +
    319V  ALA*     4.1    20.9    -      -       +      -
    369V  LEU*     3.9    18.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 108 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29V  VAL*     3.8     5.8    -      -       +      +
     31V  VAL*     3.8    18.8    -      -       +      -
     39V  GLY*     3.5    16.3    -      -       -      +
     40V  LEU      3.5    14.3    +      -       -      -
     41V  GLY      3.6    16.4    -      -       -      +
    104V  GLY      3.1    10.2    +      -       -      +
    105V  ILE      3.0     9.7    +      -       -      +
    107V  MET*     1.3    76.5    -      -       -      +
    109V  LEU*     1.3    59.0    +      -       -      +
    111V  ASP*     3.2     3.5    +      -       -      +
    112V  LEU*     2.9    25.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 109 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7V  ILE*     3.4    30.3    -      -       +      -
     31V  VAL*     3.8    19.5    -      -       +      -
     70V  VAL*     4.5     4.5    -      -       +      -
     75V  PRO*     4.0    18.4    -      -       +      +
     78V  PHE*     3.9     9.7    -      -       +      -
     81V  ASN*     4.2    29.8    -      -       +      +
     85V  MET*     4.4     8.3    -      -       +      -
    105V  ILE*     2.9    33.9    +      -       +      +
    106V  ASP*     3.2    13.4    +      -       -      +
    108V  ALA*     1.3    75.0    -      -       -      +
    110V  TYR*     1.3    59.3    +      -       -      +
    112V  LEU*     3.9     2.8    -      -       +      +
    113V  ALA*     2.9    32.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 110 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78V  PHE*     3.4    50.5    -      +       -      +
    106V  ASP*     3.2    25.5    +      -       -      -
    107V  MET*     3.3     7.5    +      -       -      +
    108V  ALA      3.3     0.4    -      -       -      -
    109V  LEU*     1.3    74.8    -      -       -      +
    111V  ASP*     1.3    65.6    +      -       -      +
    114V  GLY*     3.1    21.7    +      -       -      -
    121V  ALA*     4.2    13.8    -      -       +      +
    124V  LEU*     4.0    23.3    -      -       +      +
    125V  MET*     4.1    18.2    -      -       +      -
    289V  VAL*     3.5    35.0    -      -       +      -
    290V  THR*     2.7    38.5    +      -       -      +
    293V  LEU*     3.9    10.2    -      -       +      +
    368V  GLY*     4.0     3.8    -      -       -      -
    369V  LEU*     4.7     5.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 111 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38V  TYR      4.2     0.3    -      -       -      +
     39V  GLY*     3.3     4.7    -      -       -      -
     40V  LEU*     2.7    44.7    +      -       -      +
    107V  MET      3.4     2.0    +      -       -      +
    108V  ALA      3.2     9.3    +      -       -      +
    110V  TYR*     1.3    79.9    -      -       -      +
    112V  LEU*     1.3    61.6    +      -       -      +
    115V  LYS*     3.1    45.8    +      -       -      +
    367V  PRO      4.4     0.2    -      -       -      +
    368V  GLY*     3.5     1.7    -      -       -      -
    369V  LEU*     2.9    45.2    +      -       +      +
    370V  GLY      4.1     3.3    +      -       -      -
    371V  ILE*     4.6     7.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 112 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7V  ILE*     4.0     7.6    -      -       +      -
     31V  VAL*     3.8    30.7    -      -       +      +
     33V  ASP*     4.0    13.0    -      -       +      +
     37V  VAL*     3.6    39.3    -      -       +      +
     38V  TYR      4.0     5.2    -      -       -      -
     39V  GLY*     3.6    11.2    -      -       -      +
     75V  PRO*     3.8    28.5    -      -       +      -
    108V  ALA      2.9    16.6    +      -       -      +
    109V  LEU*     3.9     5.2    -      -       +      +
    110V  TYR      3.4     0.2    -      -       -      -
    111V  ASP*     1.3    77.8    -      -       -      +
    113V  ALA*     1.3    58.0    +      -       -      +
    115V  LYS*     3.2     3.4    +      -       -      +
    116V  GLN*     2.9    39.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 113 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75V  PRO*     3.9    25.4    -      -       +      +
     76V  LEU*     3.9    13.9    -      -       +      +
     78V  PHE*     4.1     2.7    -      -       +      -
    109V  LEU      2.9    18.3    +      -       -      +
    112V  LEU*     1.3    74.2    -      -       -      +
    114V  GLY*     1.3    64.5    +      -       -      +
    116V  GLN*     3.3    12.2    +      -       -      +
    117V  LEU*     3.0    29.0    +      -       +      +
    124V  LEU*     3.8    15.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 114 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110V  TYR      3.1    11.7    +      -       -      -
    113V  ALA*     1.3    75.7    -      -       -      +
    115V  LYS*     1.3    52.1    +      -       -      +
    118V  GLY*     2.8    14.2    +      -       -      -
    119V  VAL*     2.7    50.7    +      -       -      -
    124V  LEU*     3.4    14.1    -      -       -      +
    367V  PRO*     3.8     0.5    -      -       -      +
    368V  GLY*     3.5    11.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 115 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37V  VAL*     4.0    17.7    -      -       +      +
     38V  TYR*     2.6    53.3    +      -       -      +
    111V  ASP*     3.1    37.0    +      -       -      +
    112V  LEU      3.2     4.2    +      -       -      +
    114V  GLY*     1.3    72.7    -      -       -      +
    116V  GLN*     1.3    66.1    +      -       -      +
    118V  GLY*     3.3     9.9    +      -       -      -
    367V  PRO*     3.9    29.1    -      -       +      +
    371V  ILE      6.0     1.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 116 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5V  ALA*     3.0    38.5    +      -       -      +
     33V  ASP*     2.5    36.4    +      -       -      +
     37V  VAL*     4.8     5.8    -      -       +      -
     74V  ASP*     4.3     3.5    -      -       -      +
     75V  PRO*     3.1    27.9    -      -       -      +
     76V  LEU*     5.9     0.3    -      -       -      +
    112V  LEU*     2.9    22.8    +      -       +      +
    113V  ALA*     3.6     8.7    -      -       -      +
    115V  LYS*     1.3    79.4    -      -       -      +
    117V  LEU*     1.3    67.5    +      -       +      +
    118V  GLY      3.7     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 117 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117N  LEU*     4.0    50.6    -      -       +      +
    119N  VAL*     5.5     4.7    -      -       +      -
     76V  LEU*     4.1    27.8    -      -       +      -
    113V  ALA      3.0    20.6    +      -       -      +
    116V  GLN*     1.3    83.9    -      -       +      +
    118V  GLY*     1.3    63.0    +      -       -      +
    119V  VAL*     3.6    21.3    +      -       +      +
    124V  LEU*     4.3    17.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 118 (chain V). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114V  GLY      2.8     9.5    +      -       -      -
    115V  LYS      3.3     7.2    +      -       -      -
    116V  GLN      3.3     3.4    +      -       -      -
    117V  LEU*     1.3    80.6    -      -       -      +
    119V  VAL*     1.3    60.3    +      -       -      +
    120V  PRO*     4.6     1.7    -      -       -      +
    365V  ASP      5.6     0.7    -      -       -      +
    367V  PRO*     4.2    18.9    -      -       -      +
----------------------------------------------------------
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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