Contacts of the helix formed by residues 113 - 139 (chain C) in PDB entry 1F33


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 ASN 113 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55C  ARG*     3.4     8.8    -      -       -      +
     56C  GLY*     5.1     4.7    -      -       -      -
     57C  ALA      5.6     0.5    +      -       -      -
    112C  HIS*     1.3    80.5    -      -       -      +
    114C  VAL*     1.3    66.5    +      -       -      +
    115C  GLN*     2.8    46.1    -      -       -      +
    116C  ASP*     3.1    36.3    +      -       -      +
    117C  HIS*     3.1    12.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 114 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54C  MET*     4.3    12.8    -      -       +      -
     55C  ARG      3.0    31.1    +      -       -      +
     56C  GLY      3.8     5.4    -      -       -      +
     57C  ALA      3.4    27.4    -      -       -      +
     58C  ASN*     4.4     0.9    -      -       +      +
     59C  PHE*     4.1    10.8    -      -       -      -
     62C  VAL*     4.2    23.6    -      -       +      -
    112C  HIS      3.3     1.8    +      -       -      -
    113C  ASN*     1.3    74.1    -      -       -      +
    115C  GLN*     1.3    63.9    +      -       +      +
    117C  HIS*     3.1     4.2    +      -       -      +
    118C  LEU*     2.8    46.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 115 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57C  ALA*     5.2     5.1    +      -       +      +
     58C  ASN*     5.9     2.8    -      -       -      +
    113C  ASN*     2.8    22.6    -      -       -      +
    114C  VAL*     1.3    77.4    -      -       +      +
    116C  ASP*     1.3    61.1    +      -       -      +
    118C  LEU*     3.3    13.9    +      -       -      +
    119C  LYS*     3.0    42.6    +      -       -      +
    165C  ASN      3.2    21.0    +      -       -      -
    166C  ILE*     3.3    13.9    -      -       -      +
    167C  GLU*     2.8    53.5    +      -       +      +
     57F  ALA*     5.8     0.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 116 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111C  ILE*     4.2    28.5    -      -       +      +
    112C  HIS      4.8     0.5    +      -       -      -
    113C  ASN*     3.1    32.8    +      -       -      +
    115C  GLN*     1.3    77.3    -      -       -      +
    117C  HIS*     1.3    64.8    +      -       -      +
    119C  LYS*     3.2    15.4    +      -       -      +
    120C  GLU*     3.0    26.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 117 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49C  GLN*     4.6     2.0    -      -       -      -
     50C  ALA*     3.5    23.5    -      -       +      +
     53C  ASN*     3.5    19.0    +      -       +      -
     54C  MET*     3.7    26.9    -      -       +      -
    107C  TYR*     2.6    33.1    +      +       -      +
    108C  PRO      4.9     1.3    -      -       -      -
    111C  ILE*     3.2    40.2    +      -       +      +
    112C  HIS*     3.4    24.5    -      -       -      -
    113C  ASN      3.1     9.3    +      -       -      -
    114C  VAL      3.6     6.1    -      -       -      +
    116C  ASP*     1.3    78.5    -      -       -      +
    118C  LEU*     1.3    54.8    +      -       -      +
    120C  GLU      3.2     0.3    +      -       -      -
    121C  LEU*     2.7    41.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 118 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54C  MET*     5.0     0.7    -      -       +      -
     58C  ASN*     5.8     0.2    -      -       -      +
     62C  VAL*     3.8    28.3    -      -       +      -
     65C  MET*     5.1     4.0    -      -       +      -
     66C  LEU*     5.5     0.2    -      -       +      -
    114C  VAL*     2.8    34.7    +      -       +      +
    115C  GLN*     3.4    14.8    -      -       -      +
    117C  HIS*     1.3    77.4    -      -       -      +
    119C  LYS*     1.3    57.6    +      -       -      +
    121C  LEU*     3.4     9.6    +      -       +      -
    122C  ALA*     2.8    26.3    +      -       -      +
    162C  ILE*     3.3    38.3    -      -       +      +
    165C  ASN*     3.7    34.3    -      -       +      +
    166C  ILE*     3.9    12.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 119 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115C  GLN*     3.0    34.6    +      -       -      +
    116C  ASP*     3.2    13.6    +      -       -      +
    118C  LEU*     1.3    74.4    -      -       -      +
    120C  GLU*     1.3    66.8    +      -       +      +
    122C  ALA*     3.3     3.7    +      -       -      +
    123C  ASP*     3.1    30.0    +      -       -      +
    166C  ILE*     4.1    37.7    -      -       +      -
    167C  GLU      5.8     0.4    -      -       -      -
     18E  ARG*     4.3     9.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 120 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107C  TYR*     3.5    25.4    -      -       +      +
    108C  PRO*     3.9    11.1    -      -       +      +
    111C  ILE*     3.7    20.4    -      -       +      +
    116C  ASP*     3.0    18.4    +      -       +      +
    117C  HIS      3.6     1.3    -      -       -      +
    119C  LYS*     1.3    77.5    -      -       -      +
    121C  LEU*     1.3    61.9    +      -       -      +
    123C  ASP*     3.5    11.2    +      -       -      +
    124C  ARG*     2.9    52.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 121 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46C  ILE*     3.8    27.6    -      -       +      +
     47C  THR*     4.2     9.6    -      -       -      -
     50C  ALA*     3.6    33.0    -      -       +      -
     54C  MET*     4.6     0.9    -      -       +      -
     66C  LEU*     3.7    32.8    -      -       +      -
    107C  TYR*     4.0     2.5    -      -       +      +
    117C  HIS      2.7    30.0    +      -       -      +
    118C  LEU*     3.6    12.1    -      -       +      +
    120C  GLU*     1.3    71.6    -      -       -      +
    122C  ALA*     1.3    56.8    +      -       -      +
    124C  ARG*     3.0     4.3    +      -       +      -
    125C  TYR*     2.7    49.4    +      -       +      -
    162C  ILE*     4.1    12.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 122 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118C  LEU      2.8    21.7    +      -       -      +
    119C  LYS*     3.5     4.3    -      -       -      +
    121C  LEU*     1.3    72.0    -      -       -      +
    123C  ASP*     1.3    57.9    +      -       -      +
    125C  TYR*     4.5     0.9    -      -       -      -
    126C  ALA*     2.8    32.6    +      -       -      +
    159C  LEU*     3.5     9.4    -      -       -      +
    162C  ILE*     3.8    15.6    -      -       +      +
    163C  GLU*     4.3     8.5    -      -       +      -
    166C  ILE*     4.3     2.7    -      -       +      -
     18E  ARG*     3.4    34.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 123 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119C  LYS*     3.1    15.4    +      -       -      +
    120C  GLU*     3.6    15.8    -      -       -      +
    121C  LEU      3.1     0.2    -      -       -      -
    122C  ALA*     1.3    77.9    -      -       -      +
    124C  ARG*     1.3    68.7    +      -       -      +
    126C  ALA*     3.3     2.8    +      -       -      +
    127C  ILE*     3.1    30.2    +      -       +      +
     18E  ARG*     2.8    30.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 124 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43C  LEU*     3.8    17.7    -      -       +      -
     46C  ILE*     4.2    10.3    -      -       +      +
    104C  LEU*     3.7    18.0    -      -       +      +
    105C  LYS*     2.9    51.5    +      -       -      +
    106C  SER      3.7     6.5    +      -       -      -
    107C  TYR*     2.9    37.1    -      -       +      +
    108C  PRO*     3.5    15.8    -      -       -      +
    120C  GLU*     2.9    42.9    +      -       -      +
    121C  LEU*     3.0     7.9    +      -       -      +
    123C  ASP*     1.3    77.2    -      -       -      +
    125C  TYR*     1.3    66.0    +      -       -      +
    127C  ILE*     3.3     8.6    +      -       -      +
    128C  VAL*     3.1    26.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 125 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43C  LEU*     3.5    36.6    -      -       +      -
     47C  THR*     2.6    37.3    +      -       +      +
     66C  LEU*     5.5     0.2    -      -       +      -
     69C  PHE*     3.6    11.4    -      +       -      +
     73C  LEU*     3.5    12.2    -      -       +      +
    121C  LEU*     2.7    41.1    +      -       +      +
    122C  ALA      3.8     2.9    -      -       -      +
    124C  ARG*     1.3    69.8    -      -       -      +
    126C  ALA*     1.3    54.7    +      -       -      +
    128C  VAL*     3.2     1.2    +      -       -      +
    129C  ALA*     2.6    40.4    +      -       -      +
    155C  LEU*     4.2     8.9    -      -       +      +
    158C  PHE*     3.7    35.9    -      +       +      -
    159C  LEU*     4.2    13.2    -      -       +      -
    162C  ILE*     3.5    29.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 126 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122C  ALA      2.8    18.4    +      -       -      +
    123C  ASP*     3.4     6.1    -      -       -      +
    125C  TYR*     1.3    76.7    -      -       -      +
    127C  ILE*     1.3    58.1    +      -       +      +
    130C  ASN*     2.7    44.9    +      -       -      +
    159C  LEU*     3.9    14.7    -      -       +      +
     18E  ARG*     3.4    33.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 127 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39C  GLN*     4.3    10.1    -      -       -      +
    103C  PRO*     4.5    17.7    -      -       +      +
    104C  LEU*     3.9    23.8    -      -       +      -
    105C  LYS*     5.5     3.4    -      -       +      +
    123C  ASP*     3.1    19.6    +      -       +      +
    124C  ARG*     3.6    11.4    -      -       -      +
    125C  TYR      3.2     0.2    -      -       -      -
    126C  ALA*     1.3    76.1    -      -       +      +
    128C  VAL*     1.3    56.9    +      -       -      +
    130C  ASN*     4.1     3.7    -      -       -      +
    131C  ASP*     3.0    32.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 128 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39C  GLN*     3.3    35.6    -      -       +      +
     40C  PHE*     3.6    28.9    -      -       +      -
     43C  LEU*     4.0    17.9    -      -       +      -
    104C  LEU*     3.9    17.9    -      -       +      -
    124C  ARG      3.1    14.6    +      -       -      +
    125C  TYR      3.8     4.9    -      -       -      +
    127C  ILE*     1.3    72.8    -      -       -      +
    129C  ALA*     1.3    61.1    +      -       -      +
    131C  ASP*     3.4     0.5    +      -       -      +
    132C  VAL*     2.9    33.1    +      -       -      +
    155C  LEU*     3.5    22.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 129 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125C  TYR      2.6    24.8    +      -       -      +
    126C  ALA*     3.7     6.1    -      -       -      +
    128C  VAL*     1.3    73.5    -      -       -      +
    130C  ASN*     1.3    62.8    +      -       -      +
    132C  VAL*     3.2     9.5    -      -       -      +
    133C  ARG*     3.0    30.4    +      -       -      +
    155C  LEU*     3.9    22.8    -      -       +      +
    156C  ASP*     3.7    18.3    -      -       -      +
    159C  LEU*     4.4    10.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 130 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126C  ALA*     2.7    32.3    +      -       -      +
    127C  ILE*     4.2     3.9    -      -       -      +
    129C  ALA*     1.3    73.3    -      -       -      +
    131C  ASP*     1.3    64.1    +      -       -      +
    133C  ARG*     2.4    36.0    +      -       -      +
    134C  LYS*     3.3    30.4    +      -       -      +
     18E  ARG      2.9    21.2    +      -       -      -
     19E  ASN*     3.5     3.8    -      -       -      -
     20E  ASP*     2.7    37.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 131 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35C  ARG*     2.8    41.0    +      -       -      -
     36C  GLN*     3.7     2.3    -      -       -      +
     39C  GLN*     3.1    26.6    +      -       -      +
    103C  PRO*     5.9     0.2    -      -       -      +
    127C  ILE*     3.0    20.9    +      -       +      +
    128C  VAL      3.8     2.7    -      -       -      +
    130C  ASN*     1.3    78.1    -      -       -      +
    132C  VAL*     1.3    64.7    +      -       -      +
    134C  LYS*     3.0    12.2    +      -       -      +
    135C  ALA*     3.0    16.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 132 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36C  GLN*     3.6    28.0    -      -       -      +
     40C  PHE*     4.3    19.5    -      -       +      -
    128C  VAL      2.9    22.0    +      -       -      +
    129C  ALA*     3.2    12.3    -      -       -      +
    131C  ASP*     1.3    77.2    +      -       -      +
    133C  ARG*     1.3    66.2    +      -       -      +
    135C  ALA*     3.2    10.4    +      -       +      +
    136C  ILE*     3.3    13.6    +      -       -      +
    148C  LEU*     3.9    35.7    -      -       +      +
    151C  ALA*     4.6     0.7    -      -       +      -
    152C  SER*     4.0    20.9    -      -       -      +
    155C  LEU*     4.7     2.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 133 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129C  ALA*     3.0    28.5    +      -       -      +
    130C  ASN*     2.4    33.5    +      -       -      +
    131C  ASP      3.1     0.4    -      -       -      -
    132C  VAL*     1.3    76.1    -      -       -      +
    134C  LYS*     1.3    63.3    +      -       +      +
    136C  ILE*     3.4    23.0    -      -       +      +
    137C  GLY      4.3     1.2    +      -       -      -
    152C  SER*     3.6    17.3    -      -       -      +
    156C  ASP*     2.6    43.2    +      -       -      -
     19E  ASN*     2.9    24.1    +      -       -      +
     20E  ASP*     3.1    13.5    +      -       -      +
     21E  VAL*     3.3    23.0    -      -       -      +
     83E  ARG*     4.0     6.3    -      -       -      +
    141E  ASP*     4.3     6.3    -      -       -      +
    142E  ASP*     4.4     7.4    -      -       +      +
    143E  ASP*     4.0     7.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 134 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130C  ASN*     3.3    19.1    +      -       -      +
    131C  ASP*     3.0    10.1    +      -       -      +
    133C  ARG*     1.3    76.8    -      -       +      +
    135C  ALA*     1.3    67.3    +      -       -      +
    136C  ILE      3.0     2.9    +      -       -      -
    137C  GLY*     3.2    11.3    +      -       -      -
    138C  GLU*     3.2    14.8    +      -       -      +
     20E  ASP*     2.3    45.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 135 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32C  LEU*     3.9    20.0    -      -       +      +
     35C  ARG*     4.4     4.0    -      -       -      +
     36C  GLN*     3.6    23.3    -      -       -      +
    131C  ASP      3.0     8.3    +      -       -      +
    132C  VAL*     3.2    10.7    +      -       -      +
    134C  LYS*     1.3    77.2    -      -       -      +
    136C  ILE*     1.3    56.4    +      -       -      +
    138C  GLU*     3.1    14.5    +      -       -      +
    139C  ALA*     2.8    31.4    +      -       -      +
    148C  LEU*     3.8    12.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 136 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132C  VAL      3.5     8.7    -      -       -      +
    133C  ARG*     3.4    18.6    -      -       +      +
    134C  LYS      3.0     0.2    -      -       -      -
    135C  ALA*     1.3    78.0    -      -       -      +
    137C  GLY*     1.3    62.6    +      -       -      +
    139C  ALA*     3.2    20.7    +      -       -      +
    145C  ALA*     4.0    14.0    -      -       +      +
    148C  LEU*     3.9    22.4    -      -       +      +
    149C  THR*     3.4    30.1    -      -       -      +
    152C  SER*     3.7    11.9    -      -       -      +
    142E  ASP*     3.8    29.2    -      -       +      +
    143E  ASP*     3.4    25.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 137 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133C  ARG      4.3     0.6    +      -       -      -
    134C  LYS*     3.2     7.4    +      -       -      +
    136C  ILE*     1.3    81.8    -      -       -      +
    138C  GLU*     1.3    59.7    +      -       -      +
    139C  ALA      3.2     5.1    +      -       -      +
    142E  ASP*     4.3    10.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 138 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32C  LEU*     3.6    29.3    -      -       +      +
     35C  ARG*     3.8    15.2    +      -       -      -
    134C  LYS*     3.2    14.1    +      -       -      +
    135C  ALA*     3.1    12.3    +      -       -      +
    137C  GLY*     1.3    75.5    -      -       -      +
    139C  ALA*     1.3    61.1    +      -       -      +
    140C  LYS*     3.4    12.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 139 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32C  LEU*     4.0    11.2    -      -       +      -
    135C  ALA      2.8    10.8    +      -       -      +
    136C  ILE      3.4    16.4    -      -       -      +
    137C  GLY      3.2     5.4    -      -       -      +
    138C  GLU*     1.3    76.8    -      -       -      +
    140C  LYS*     1.3    64.3    +      -       -      +
    141C  ASP      4.4     2.0    -      -       -      +
    144C  THR*     4.4     5.2    -      -       +      -
    145C  ALA*     3.9    31.5    -      -       +      +
    148C  LEU*     4.1    10.8    -      -       +      -
----------------------------------------------------------
 Back to top of page


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