Contacts of the helix formed by residues 96 - 118 (chain K) 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 K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95K  ARG*     1.3    73.9    -      -       -      +
     97K  LEU*     1.3    54.2    +      -       -      -
     98K  GLY      3.3     0.2    -      -       -      -
     99K  LEU*     2.8    30.5    +      -       -      +
    100K  PHE*     3.4    15.4    -      -       -      -
    262K  THR*     3.1    21.1    +      -       -      +
    285K  ARG*     6.2     0.2    -      -       -      -
     93N  GLY      4.6     7.0    -      -       -      -
     95N  ARG*     3.6    17.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 97 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46K  PRO*     4.5     9.6    -      -       +      -
     49K  CYS*     4.1    11.0    -      -       -      -
     50K  MET*     3.6    33.3    -      -       +      +
     53K  PHE*     3.7    29.2    -      -       +      -
     95K  ARG      3.6     2.0    +      -       -      -
     96K  GLY*     1.3    71.3    -      -       -      -
     98K  GLY*     1.3    66.5    +      -       -      +
    100K  PHE*     2.9    35.9    +      -       +      +
    101K  ALA      3.5     2.8    +      -       -      -
     53N  PHE*     3.9    33.0    -      -       +      -
     92N  ILE*     4.0    19.3    +      -       +      +
     95N  ARG      4.6     1.8    +      -       -      -
     97N  LEU*     4.3    22.0    -      -       +      +
     98N  GLY      5.2     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 98 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53K  PHE*     3.4    32.6    -      -       -      -
     89K  THR*     5.6     0.4    +      -       -      -
     92K  ILE      4.4     4.4    +      -       -      -
     93K  GLY*     4.2    13.7    -      -       -      -
     95K  ARG      4.4     2.4    +      -       -      -
     96K  GLY      3.2     1.0    +      -       -      -
     97K  LEU*     1.3    78.2    -      -       -      +
     99K  LEU*     1.3    61.5    +      -       -      +
    101K  ALA*     3.3     7.3    -      -       -      +
    102K  ILE*     3.3    25.8    +      -       -      +
     97N  LEU*     5.1     1.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 99 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82K  TYR*     3.7    22.9    -      -       -      +
     86K  TYR*     4.2     5.2    -      -       +      -
     93K  GLY*     4.9     0.2    -      -       -      -
     94K  MET*     2.9    46.9    -      -       -      +
     95K  ARG*     3.4     8.4    +      -       -      +
     96K  GLY      2.8    13.2    +      -       -      +
     98K  GLY*     1.3    76.0    -      -       -      +
    100K  PHE*     1.3    57.0    +      -       -      -
    102K  ILE*     3.4    23.1    +      -       +      +
    103K  SER*     2.8    32.1    +      -       -      -
    262K  THR*     4.0     4.9    -      -       -      +
    263K  THR*     3.4    14.4    -      -       +      -
    285K  ARG      3.5    12.6    -      -       -      +
    286K  CYS      3.7    15.0    -      -       -      +
    287K  GLY*     3.8     8.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 100 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43K  ALA*     3.3    10.6    -      -       -      +
     44K  ASP*     3.3    35.9    -      -       +      +
     45K  GLY*     4.0     5.4    -      -       -      -
     50K  MET*     3.7     1.6    -      -       +      -
     96K  GLY*     3.4    19.5    -      -       -      -
     97K  LEU*     2.9    29.1    +      -       +      +
     99K  LEU*     1.3    74.6    -      -       -      +
    101K  ALA*     1.3    62.3    +      -       -      +
    103K  SER*     3.1     4.2    +      -       -      -
    104K  GLY      3.1    19.2    +      -       -      -
    262K  THR*     4.0    10.8    -      -       +      -
    284K  ASN      3.5    12.3    -      -       -      +
    285K  ARG*     3.4    57.4    -      -       +      -
     91N  TRP      3.6    10.1    -      -       -      -
     92N  ILE*     4.1    21.1    -      -       +      -
     93N  GLY      5.9     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 101 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12K  PHE*     3.7    26.3    -      -       +      -
     43K  ALA*     4.3     0.9    -      -       -      -
     50K  MET*     3.8     8.7    -      -       +      +
     53K  PHE*     3.6    31.0    -      -       +      -
     66K  ILE*     4.0     9.6    -      -       +      -
     97K  LEU      3.5     1.6    +      -       -      -
     98K  GLY      3.3    11.6    +      -       -      +
    100K  PHE*     1.3    78.6    -      -       -      +
    102K  ILE*     1.3    61.3    +      -       -      +
    104K  GLY*     3.4     1.9    +      -       -      -
    105K  ILE*     3.3    25.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 102 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66K  ILE*     3.5    22.7    -      -       +      -
     82K  TYR*     3.7    34.8    -      -       +      +
     85K  MET*     4.0    22.4    -      -       +      +
     86K  TYR*     4.0    30.1    -      -       +      -
     89K  THR*     4.1    11.9    -      -       -      +
     94K  MET      5.7     2.5    -      -       -      +
     98K  GLY      3.3    13.5    +      -       -      +
     99K  LEU*     3.7    24.7    -      -       +      +
    101K  ALA*     1.3    74.1    -      -       -      +
    103K  SER*     1.3    65.1    +      -       -      +
    105K  ILE*     3.3     1.0    +      -       -      +
    106K  ASP*     2.9    23.4    +      -       -      +
    287K  GLY*     3.9     3.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 103 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42K  GLU      4.6     0.7    -      -       -      -
     99K  LEU      2.8    14.0    +      -       -      -
    100K  PHE      3.1     9.4    +      -       -      -
    102K  ILE*     1.3    74.6    -      -       -      +
    104K  GLY*     1.3    57.2    +      -       -      +
    106K  ASP*     3.6     1.2    -      -       -      +
    107K  MET*     3.0    31.0    +      -       -      +
    283K  TYR      3.4    21.5    -      -       -      +
    284K  ASN      3.5    11.4    -      -       -      -
    285K  ARG      3.1     7.6    -      -       -      -
    287K  GLY      2.7    39.1    +      -       -      -
    288K  GLY*     3.6     4.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 104 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29K  VAL*     3.5    24.1    -      -       -      +
     41K  GLY*     3.5     5.4    -      -       -      -
     42K  GLU      3.4    29.1    +      -       -      -
     43K  ALA*     4.0     1.8    -      -       -      -
    100K  PHE      3.1    11.2    +      -       -      -
    101K  ALA      3.4     2.4    +      -       -      -
    102K  ILE      3.2     0.2    -      -       -      -
    103K  SER*     1.3    75.3    -      -       -      +
    105K  ILE*     1.3    61.9    +      -       -      +
    107K  MET*     4.6     0.7    -      -       -      -
    108K  ALA*     3.3    15.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 105 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10K  VAL*     4.2    11.2    -      -       +      -
     12K  PHE*     3.8    17.0    -      -       +      -
     29K  VAL*     3.7    20.9    -      -       +      -
     31K  VAL*     4.4    10.8    -      -       +      -
     66K  ILE*     3.8    34.1    -      -       +      +
     67K  LYS*     5.2     0.9    -      -       -      +
     70K  VAL*     4.5    11.9    -      -       +      -
     85K  MET*     3.8    22.7    -      -       -      -
    101K  ALA      3.3    14.0    +      -       -      +
    102K  ILE      3.3     2.5    +      -       -      +
    104K  GLY*     1.3    73.5    -      -       -      +
    106K  ASP*     1.3    62.0    +      -       -      +
    108K  ALA*     3.0     4.0    +      -       -      +
    109K  LEU*     2.8    44.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 106 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78K  PHE*     4.7     4.3    -      -       -      +
     82K  TYR*     4.3     8.8    +      -       +      +
     85K  MET*     4.2     8.2    -      -       +      +
    102K  ILE      2.9    17.8    +      -       -      +
    103K  SER      3.6     4.0    -      -       -      +
    105K  ILE*     1.3    76.5    -      -       -      +
    107K  MET*     1.3    62.6    +      -       -      +
    109K  LEU*     3.1    21.8    +      -       -      +
    110K  TYR*     3.2    24.2    +      -       -      -
    287K  GLY      3.8    11.4    -      -       -      +
    289K  VAL*     2.8    30.8    +      -       -      -
    290K  THR*     2.5    37.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 107 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40K  LEU      3.9     2.5    -      -       -      +
     41K  GLY*     3.8     4.9    -      -       -      -
     42K  GLU      3.7    33.0    -      -       -      +
    103K  SER      3.0    14.6    +      -       -      +
    104K  GLY      3.9     5.4    -      -       -      +
    106K  ASP*     1.3    76.7    +      -       -      +
    108K  ALA*     1.3    62.3    +      -       -      +
    110K  TYR*     3.2    18.1    +      -       -      +
    111K  ASP      3.3     8.5    +      -       -      -
    283K  TYR*     3.9    32.5    -      -       +      +
    284K  ASN*     4.4     0.7    -      -       +      -
    289K  VAL*     4.8    11.2    -      -       +      +
    315K  ILE*     3.9    17.0    -      -       -      +
    316K  THR*     3.7    20.6    -      -       -      +
    319K  ALA*     4.1    20.0    -      -       +      -
    369K  LEU*     3.9    18.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 108 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29K  VAL*     3.8     6.1    -      -       +      +
     31K  VAL*     3.6    23.8    -      -       +      -
     39K  GLY*     3.6     8.8    -      -       -      +
     40K  LEU      3.5    13.5    -      -       -      -
     41K  GLY*     3.4    18.3    -      -       -      +
    104K  GLY      3.3     8.3    +      -       -      +
    105K  ILE*     3.0    10.1    +      -       -      +
    107K  MET*     1.3    79.0    -      -       -      +
    109K  LEU*     1.3    58.5    +      -       -      +
    111K  ASP*     3.1     5.5    +      -       -      +
    112K  LEU*     2.8    26.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 109 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7K  ILE*     3.4    31.9    -      -       +      -
     31K  VAL*     4.1    16.6    -      -       +      -
     70K  VAL*     4.3    11.0    -      -       +      -
     75K  PRO*     3.9    20.0    -      -       +      +
     78K  PHE*     4.1     9.4    -      -       +      -
     81K  ASN*     4.3    16.2    -      -       +      +
     85K  MET*     4.2    15.3    -      -       +      -
    105K  ILE*     2.8    38.3    +      -       +      +
    106K  ASP*     3.4    11.4    -      -       -      +
    108K  ALA*     1.3    70.9    -      -       -      +
    110K  TYR*     1.3    59.7    +      -       -      +
    112K  LEU*     3.9     3.5    -      -       +      +
    113K  ALA*     2.8    34.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 110 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78K  PHE*     3.5    45.6    -      +       -      +
    106K  ASP*     3.2    29.0    +      -       -      -
    107K  MET*     3.2     6.2    +      -       -      +
    109K  LEU*     1.3    72.4    -      -       -      +
    111K  ASP*     1.3    65.0    +      -       -      +
    114K  GLY*     3.1    19.6    +      -       -      -
    121K  ALA*     4.1    18.2    -      -       +      +
    124K  LEU*     3.7    26.3    +      -       +      +
    125K  MET*     3.9    29.4    -      -       +      -
    289K  VAL*     3.6    27.8    -      -       +      -
    290K  THR*     2.9    36.8    +      -       -      +
    293K  LEU*     3.7    10.4    -      -       -      +
    368K  GLY*     4.1     3.8    -      -       -      -
    369K  LEU*     4.7     2.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 111 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39K  GLY*     3.3     5.0    -      -       -      -
     40K  LEU*     2.6    47.0    +      -       -      +
    107K  MET      3.3     2.8    +      -       -      -
    108K  ALA      3.1    10.0    +      -       -      +
    110K  TYR*     1.3    79.1    -      -       -      +
    112K  LEU*     1.3    62.4    +      -       -      +
    115K  LYS*     3.1    37.5    +      -       -      +
    368K  GLY*     3.4     8.5    -      -       -      -
    369K  LEU*     2.8    44.7    +      -       +      +
    370K  GLY      4.2     2.8    +      -       -      -
    371K  ILE*     4.3     7.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 112 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7K  ILE*     4.1    19.1    -      -       +      -
     31K  VAL*     3.7    22.9    -      -       +      +
     33K  ASP*     4.1    12.8    -      -       +      +
     37K  VAL*     3.6    33.9    -      -       +      +
     38K  TYR      3.8    12.8    -      -       -      -
     39K  GLY*     3.6    10.3    -      -       -      +
     75K  PRO*     4.1    23.1    -      -       +      -
    108K  ALA      2.8    15.6    +      -       -      +
    109K  LEU*     3.9     6.3    -      -       +      +
    111K  ASP*     1.3    72.8    -      -       -      +
    113K  ALA*     1.3    67.4    +      -       -      +
    115K  LYS*     2.9     5.9    +      -       -      +
    116K  GLN*     2.8    33.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 113 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75K  PRO*     3.9    23.9    -      -       -      +
     76K  LEU*     4.2    10.5    -      -       +      +
     78K  PHE*     3.9     7.9    -      -       +      -
    109K  LEU      2.8    21.9    +      -       -      +
    112K  LEU*     1.3    72.5    -      -       -      +
    114K  GLY*     1.3    56.8    +      -       -      +
    116K  GLN*     3.5    13.3    +      -       -      +
    117K  LEU*     3.0    34.0    +      -       -      +
    124K  LEU*     3.8    16.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 114 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110K  TYR      3.1    13.3    +      -       -      -
    112K  LEU      3.1     1.0    -      -       -      -
    113K  ALA*     1.3    76.5    -      -       -      +
    115K  LYS*     1.3    57.9    +      -       -      +
    118K  GLY*     2.8    26.0    +      -       -      -
    119K  VAL*     2.9    33.2    +      -       -      +
    120K  PRO      5.3     0.2    -      -       -      -
    124K  LEU*     3.6    14.0    -      -       -      +
    367K  PRO*     3.7     0.9    -      -       -      +
    368K  GLY*     3.6     8.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 115 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37K  VAL*     4.0    21.5    -      -       +      -
     38K  TYR*     2.7    51.3    +      -       -      +
    111K  ASP*     3.1    34.0    +      -       -      +
    112K  LEU      2.9     7.6    +      -       -      +
    114K  GLY*     1.3    73.4    -      -       -      +
    116K  GLN*     1.3    66.6    +      -       -      +
    117K  LEU      3.1     1.0    +      -       -      -
    118K  GLY*     3.2    11.1    +      -       -      -
    367K  PRO*     4.0    26.9    -      -       +      +
    371K  ILE      5.9     1.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 116 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5K  ALA      2.9    36.9    +      -       -      +
     33K  ASP*     2.8    34.9    +      -       -      +
     37K  VAL*     4.6     6.4    -      -       +      +
     74K  ASP*     4.4     3.8    -      -       -      +
     75K  PRO*     3.0    30.4    -      -       -      +
     76K  LEU*     5.1     0.7    +      -       -      +
    112K  LEU*     2.8    26.7    +      -       +      +
    113K  ALA*     3.6     8.9    -      -       -      +
    115K  LYS*     1.3    74.8    -      -       -      +
    117K  LEU*     1.3    66.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 117 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117I  LEU*     4.2    50.5    -      -       +      +
    119I  VAL*     5.1     9.6    -      -       +      -
     76K  LEU*     4.0    31.9    -      -       +      -
    113K  ALA*     3.0    22.7    +      -       +      +
    114K  GLY      4.4     0.9    -      -       -      +
    116K  GLN*     1.3    84.0    -      -       +      +
    118K  GLY*     1.3    61.4    +      -       -      +
    119K  VAL*     4.3    13.8    -      -       +      +
    124K  LEU*     4.3    13.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 118 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114K  GLY      2.8    10.5    +      -       -      -
    115K  LYS      3.2     9.1    +      -       -      -
    117K  LEU*     1.3    79.1    -      -       -      +
    119K  VAL*     1.3    59.8    +      -       -      +
    120K  PRO*     4.6     1.4    -      -       -      +
    365K  ASP      5.1     1.6    -      -       -      +
    367K  PRO*     4.0    20.2    -      -       -      +
----------------------------------------------------------
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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