Contacts of the helix formed by residues 95 - 121 (chain P) in PDB entry 4G7Z


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with THR 95 (chain P).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93P  LEU      3.9     2.7    +      -       -      +
     94P  LEU*     1.3    75.0    -      -       -      +
     96P  LEU*     1.3    66.1    +      -       -      +
     97P  GLU*     2.3    32.2    +      -       -      +
     98P  GLU*     2.9    34.4    +      -       -      +
     99P  GLU*     3.0    20.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 96 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    349N  PRO*     3.7    31.4    -      -       +      -
    350N  HIS*     4.4    19.3    -      -       +      +
     95P  THR*     1.3    74.1    -      -       -      +
     97P  GLU*     1.3    68.6    +      -       +      +
     99P  GLU*     3.1    18.9    +      -       -      +
    100P  VAL*     2.9    35.6    +      -       +      +
    234P  LYS*     4.8    21.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 97 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207N  PHE*     3.3    46.7    -      -       +      -
    209N  ARG*     3.7    23.4    +      -       -      +
    349N  PRO*     4.2    32.3    -      -       +      +
    391N  ALA*     4.1    14.1    -      -       +      +
     95P  THR*     2.3    35.7    +      -       -      +
     96P  LEU*     1.3    77.8    -      -       +      +
     98P  GLU*     1.3    56.2    +      -       -      +
    100P  VAL*     3.2     4.0    +      -       -      +
    101P  GLU      2.8    24.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 98 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168N  THR*     5.4     5.4    -      -       -      +
    206N  ARG*     4.7     7.8    -      -       -      +
    207N  PHE*     3.5    27.5    -      -       +      -
    392N  SER*     4.9     8.5    +      -       -      -
     93P  LEU      4.1     2.9    -      -       -      +
     94P  LEU*     3.3    23.5    -      -       +      +
     95P  THR*     2.9    45.6    +      -       -      +
     96P  LEU      3.2     0.2    -      -       -      -
     97P  GLU*     1.3    75.5    -      -       -      +
     99P  GLU*     1.3    63.2    +      -       -      +
    101P  GLU*     3.2     2.1    +      -       -      +
    102P  LEU*     3.0    34.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 99 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94P  LEU*     4.2    25.5    -      -       +      +
     95P  THR      3.0    13.8    +      -       -      +
     96P  LEU*     3.4    18.3    -      -       +      +
     98P  GLU*     1.3    76.9    -      -       -      +
    100P  VAL*     1.3    62.0    +      -       +      +
    102P  LEU*     4.3     1.3    -      -       -      +
    103P  ALA*     3.2    27.8    +      -       +      +
    187P  LEU*     4.8     6.8    -      -       +      +
    191P  ASN*     4.7     4.5    +      -       -      +
    227P  PHE*     5.5     2.8    -      -       +      -
    234P  LYS*     3.5    22.5    -      -       -      +
    235P  PHE*     2.9    40.6    +      -       +      +
      6R    T      3.4    22.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 100 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    349N  PRO      4.2    14.8    -      -       -      +
    350N  HIS*     3.9    44.4    -      -       +      +
    351N  MET*     5.9     1.6    -      -       -      +
    352N  ASN*     6.5     0.4    -      -       +      -
     96P  LEU*     2.9    26.8    +      -       +      +
     97P  GLU      3.6     7.2    -      -       -      +
     99P  GLU*     1.3    75.9    -      -       +      +
    101P  GLU*     1.3    66.7    +      -       -      +
    103P  ALA*     3.4     4.1    +      -       -      +
    104P  ARG*     2.9    32.2    +      -       -      +
    229P  TYR*     4.0    27.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 101 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206N  ARG*     2.7    38.2    +      -       -      -
    207N  PHE*     2.9    20.2    -      -       +      -
     97P  GLU      2.8    13.1    +      -       -      +
     98P  GLU*     3.5     7.6    -      -       -      +
    100P  VAL*     1.3    75.8    -      -       -      +
    102P  LEU*     1.3    73.5    +      -       -      +
    104P  ARG*     2.9    24.2    +      -       -      +
    105P  LYS*     2.9    56.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 102 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94P  LEU*     3.6    41.5    -      -       +      -
     98P  GLU*     3.0    15.3    +      -       +      +
     99P  GLU      4.3     1.8    -      -       -      +
    101P  GLU*     1.3    93.4    -      -       +      +
    103P  ALA*     1.3    62.5    +      -       -      +
    105P  LYS*     3.4     1.7    +      -       +      -
    106P  VAL*     3.1    29.9    +      -       -      +
    183P  ALA*     3.5    38.1    -      -       +      +
    186P  HIS*     4.2    21.1    -      -       +      +
    187P  LEU*     4.2    19.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 103 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99P  GLU*     3.2    21.5    +      -       +      +
    100P  VAL*     3.9     2.9    -      -       -      +
    102P  LEU*     1.3    76.5    -      -       -      +
    104P  ARG*     1.3    61.2    +      -       -      +
    106P  VAL*     3.5     6.9    -      -       -      +
    107P  GLU*     3.3    26.3    +      -       -      +
    187P  LEU*     4.3    16.5    -      -       +      +
    227P  PHE*     4.1    21.9    -      -       +      +
    229P  TYR*     4.0    20.2    -      -       +      +
    235P  PHE*     6.5     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 104 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207N  PHE*     5.4     3.2    -      -       -      -
    352N  ASN*     3.8    46.3    +      -       -      +
    100P  VAL*     2.9    21.4    +      -       -      +
    101P  GLU*     3.3    37.3    -      -       -      +
    103P  ALA*     1.3    73.2    -      -       -      +
    105P  LYS*     1.3    76.9    +      -       -      +
    106P  VAL      3.1     1.3    -      -       -      -
    107P  GLU*     3.1     3.5    +      -       -      +
    108P  GLU*     2.8    72.0    +      -       +      +
    229P  TYR*     3.8    37.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 105 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    440N  VAL*     6.3     1.0    -      -       -      +
    101P  GLU*     2.9    51.3    +      -       +      +
    102P  LEU*     5.1     1.1    -      -       +      -
    104P  ARG*     1.3    93.0    -      -       -      +
    106P  VAL*     1.3    52.8    +      -       -      +
    108P  GLU*     3.7    10.3    +      -       -      +
    109P  GLY*     2.7    28.2    +      -       -      -
    176P  ILE*     4.2     1.6    -      -       -      +
    179P  GLU*     3.6    44.7    +      -       +      +
    180P  GLY*     3.2    12.3    +      -       -      -
    183P  ALA*     3.6    23.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 106 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102P  LEU      3.1    21.2    +      -       -      +
    103P  ALA*     3.5    12.6    -      -       -      +
    104P  ARG      3.1     0.2    -      -       -      -
    105P  LYS*     1.3    76.4    -      -       -      +
    107P  GLU*     1.3    62.5    +      -       +      +
    109P  GLY*     3.1     2.9    +      -       -      -
    110P  MET*     2.9    43.2    +      -       +      +
    180P  GLY*     4.0     8.1    -      -       -      -
    183P  ALA      4.1     0.7    -      -       -      -
    184P  ARG*     3.5    46.9    -      -       +      +
    187P  LEU*     4.8     7.9    -      -       +      -
    224P  VAL*     4.4    18.8    -      -       +      +
    225P  GLU*     5.6     2.0    -      -       -      +
    227P  PHE      6.1     1.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 107 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103P  ALA      3.3     8.2    +      -       -      +
    104P  ARG      3.1     7.9    +      -       -      +
    106P  VAL*     1.3    83.7    -      -       +      +
    108P  GLU*     1.3    59.1    +      -       +      +
    110P  MET*     3.1    14.7    +      -       -      +
    111P  GLU*     2.9    40.5    +      -       +      +
    227P  PHE*     3.3    24.0    -      -       -      +
    228P  GLU*     4.2    13.2    -      -       -      +
    229P  TYR*     3.2    40.0    +      -       +      -
    230P  LYS*     4.1    17.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 108 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    352N  ASN*     5.2     2.3    +      -       -      -
    104P  ARG*     2.8    60.4    +      -       +      +
    105P  LYS*     4.0     9.4    +      -       -      +
    107P  GLU*     1.3    73.5    -      -       +      +
    109P  GLY*     1.3    60.1    +      -       -      +
    111P  GLU*     3.8    17.7    -      -       -      +
    112P  ALA*     2.9    30.3    +      -       -      +
    176P  ILE*     3.4    16.5    -      -       +      +
    229P  TYR*     4.5     5.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 109 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105P  LYS      2.7    19.4    +      -       -      -
    106P  VAL      3.4     2.2    -      -       -      -
    108P  GLU*     1.3    77.6    -      -       -      +
    110P  MET*     1.3    51.3    +      -       -      +
    112P  ALA*     3.2     3.6    +      -       -      +
    113P  ILE*     2.8    43.3    +      -       -      +
    176P  ILE*     3.5    19.7    -      -       -      +
    177P  ALA*     3.7     8.5    -      -       -      +
    180P  GLY*     4.3     4.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET 110 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106P  VAL*     2.9    31.7    +      -       +      +
    107P  GLU*     3.1    15.7    +      -       -      +
    109P  GLY*     1.3    72.4    -      -       -      +
    111P  GLU*     1.3    61.9    +      -       +      +
    113P  ILE*     3.1    17.6    +      -       +      +
    114P  LYS*     2.8    36.8    +      -       +      +
    128P  ARG*     5.8     6.1    -      -       -      -
    181P  GLU*     5.9     1.8    -      -       -      +
    225P  GLU*     4.3    23.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 111 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107P  GLU*     2.9    28.7    +      -       +      +
    108P  GLU*     3.8    19.5    -      -       -      +
    110P  MET*     1.3    75.3    -      -       +      +
    112P  ALA*     1.3    57.8    +      -       -      +
    114P  LYS*     3.0    11.5    +      -       +      +
    115P  LYS*     2.8    45.0    +      -       +      +
    230P  LYS*     5.3     8.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 112 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108P  GLU      2.9    19.7    +      -       -      +
    109P  GLY      3.5     4.5    -      -       -      +
    111P  GLU*     1.3    73.5    -      -       -      +
    113P  ILE*     1.3    60.2    +      -       -      +
    115P  LYS*     3.8     7.8    -      -       -      +
    116P  LEU*     3.0    33.4    +      -       -      +
    173P  TYR*     3.5    37.2    -      -       +      +
    176P  ILE*     3.8    18.4    -      -       +      -
    177P  ALA      4.3     0.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 113 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109P  GLY      2.8    20.9    +      -       -      +
    110P  MET*     3.1    19.7    +      -       +      +
    112P  ALA*     1.3    76.3    -      -       -      +
    114P  LYS*     1.3    59.8    +      -       +      +
    116P  LEU*     3.0    10.2    +      -       -      +
    117P  SER*     2.9    26.7    +      -       -      -
    124P  PRO*     3.5    29.8    -      -       +      +
    127P  ILE*     4.2    16.4    -      -       +      +
    128P  ARG*     3.6    34.5    -      -       +      +
    131P  VAL*     5.0     2.7    -      -       +      -
    177P  ALA*     3.6    21.1    -      -       +      +
    181P  GLU*     4.4     9.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 114 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110P  MET*     2.8    20.1    +      -       +      +
    111P  GLU*     3.3    14.4    -      -       +      +
    113P  ILE*     1.3    78.6    -      -       +      +
    115P  LYS*     1.3    61.6    +      -       +      +
    117P  SER*     3.1    11.1    +      -       -      +
    118P  GLU*     3.1    34.6    +      -       -      +
    124P  PRO*     5.6     9.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 115 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111P  GLU*     2.8    36.9    +      -       -      +
    112P  ALA*     3.8     2.9    -      -       -      +
    114P  LYS*     1.3    79.9    -      -       +      +
    116P  LEU*     1.3    58.5    +      -       -      +
    118P  GLU*     3.3    27.2    +      -       -      +
    119P  ILE*     3.0    35.8    +      -       +      +
    173P  TYR*     3.6    42.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 116 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112P  ALA      3.0    22.2    +      -       -      +
    113P  ILE*     3.0     8.4    +      -       -      +
    115P  LYS*     1.3    78.5    -      -       -      +
    117P  SER*     1.3    54.8    +      -       -      +
    119P  ILE*     4.5     5.2    -      -       +      -
    120P  THR*     2.4    37.4    +      -       -      +
    127P  ILE*     3.5    22.2    -      -       +      +
    131P  VAL*     5.3     0.7    -      -       +      -
    163P  LEU*     4.1    17.9    -      -       +      -
    166P  LEU*     3.8    22.7    -      -       +      -
    170P  HIS      3.7    12.6    -      -       -      +
    171P  LYS*     5.6     0.4    -      -       -      -
    173P  TYR*     3.4    40.2    -      -       +      +
    174P  LEU*     3.9    15.3    -      -       +      +
    177P  ALA*     4.8     4.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 117 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113P  ILE      2.9    12.6    +      -       -      -
    114P  LYS*     3.1    12.4    +      -       -      +
    115P  LYS      3.2     0.2    -      -       -      -
    116P  LEU*     1.3    75.4    -      -       -      +
    118P  GLU*     1.3    65.5    +      -       -      +
    119P  ILE      3.3     0.2    -      -       -      -
    121P  GLY*     2.8    28.1    +      -       -      -
    122P  LEU      3.3    25.4    +      -       -      +
    124P  PRO*     4.0    25.1    -      -       -      +
    127P  ILE*     3.8     6.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 118 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114P  LYS*     3.1    19.3    +      -       -      +
    115P  LYS*     3.5    35.0    +      -       -      +
    117P  SER*     1.3    85.3    +      -       -      +
    119P  ILE*     1.3    63.6    +      -       +      +
    121P  GLY*     4.2     2.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 119 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115P  LYS*     3.0    19.5    +      -       +      +
    116P  LEU*     4.1     9.6    -      -       +      +
    118P  GLU*     1.3    81.8    -      -       +      +
    120P  THR*     1.3    61.2    +      -       -      +
    166P  LEU*     3.9    23.6    -      -       +      -
    170P  HIS*     3.4    57.7    -      -       +      +
    173P  TYR*     4.0    21.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 120 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116P  LEU*     2.4    28.1    +      -       -      -
    119P  ILE*     1.3    77.6    -      -       -      +
    121P  GLY*     1.3    62.0    +      -       -      +
    122P  LEU*     3.6    39.0    -      -       +      +
    127P  ILE*     4.1     4.6    -      -       -      +
    162P  LYS*     4.6    18.2    -      -       +      +
    163P  LEU*     4.1    16.1    -      -       +      +
    166P  LEU*     4.3    15.7    -      -       +      +
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Residues in contact with GLY 121 (chain P). Click here for Legend to table.
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                                  Specific contacts
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     Residue       Dist    Surf   HB    Arom    Phob    DC
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    117P  SER      2.8    15.2    +      -       -      -
    118P  GLU      4.2     2.2    +      -       -      -
    119P  ILE      3.5     2.0    +      -       -      -
    120P  THR*     1.3    79.5    -      -       -      +
    122P  LEU*     1.3    67.4    +      -       -      +
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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
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  Atomic class           I  II  III   IV   V   VI  VII  VIII
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   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
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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