Contacts of the helix formed by residues 1049 - 1075 (chain A) in PDB entry 6DMY


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 ASN1049 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76A  PRO*     5.5     7.2    -      -       +      +
   1047A  LEU*     3.5     5.6    -      -       +      +
   1048A  LEU*     1.3    77.1    -      -       -      +
   1050A  PRO*     1.3    74.2    -      -       -      +
   1051A  TRP*     4.0     7.7    +      -       -      +
   1052A  THR*     2.4    42.4    +      -       +      +
   1053A  ALA*     3.5     3.7    +      -       -      +
   1105A  LEU*     3.4    27.9    -      -       +      +
   1180A  PRO      2.9    28.1    +      -       -      +
   1181A  TYR*     4.3     4.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with PRO1050 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1040A  PHE*     3.8    18.0    -      -       +      -
   1044A  ALA*     5.4     5.8    -      -       +      -
   1048A  LEU*     3.0    19.2    -      -       +      +
   1049A  ASN*     1.3    89.2    -      -       -      +
   1051A  TRP*     1.3    63.4    +      -       +      +
   1053A  ALA*     3.2    19.4    +      -       +      +
   1054A  GLY*     3.3    10.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with TRP1051 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1049A  ASN*     3.4     8.2    -      -       -      +
   1050A  PRO*     1.3    82.7    -      -       +      +
   1052A  THR*     1.3    58.7    +      -       +      +
   1053A  ALA      3.3     0.4    +      -       -      -
   1054A  GLY*     3.9     4.9    +      -       -      +
   1055A  ILE*     3.4    24.4    +      -       +      +
   1178A  PHE*     3.9    29.0    -      +       -      -
   1179A  GLY*     2.8    44.0    +      -       -      +
   1180A  PRO*     4.2     1.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR1052 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1047A  LEU*     3.5    17.4    -      -       -      +
   1049A  ASN*     2.4    44.2    +      -       -      +
   1051A  TRP*     1.3    75.4    -      -       +      +
   1053A  ALA*     1.3    63.1    +      -       -      +
   1055A  ILE*     3.9     7.8    +      -       -      +
   1056A  ILE*     3.9    21.3    +      -       -      +
   1101A  ALA*     4.5    12.5    -      -       -      +
   1105A  LEU*     3.7    11.9    -      -       +      +
   1180A  PRO*     3.5    41.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA1053 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1040A  PHE*     3.7    19.7    -      -       +      -
   1043A  CYS*     3.3    34.3    -      -       +      +
   1044A  ALA*     4.4     1.8    -      -       -      +
   1047A  LEU*     5.3     0.7    -      -       -      -
   1049A  ASN      3.5     1.3    +      -       -      +
   1050A  PRO*     3.2    17.0    +      -       +      +
   1052A  THR*     1.3    78.5    +      -       -      +
   1054A  GLY*     1.3    59.1    +      -       -      +
   1055A  ILE      3.1     2.0    -      -       -      -
   1056A  ILE*     3.0    14.3    +      -       -      +
   1057A  VAL*     2.9    27.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY1054 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1040A  PHE*     3.7    13.2    -      -       -      -
   1050A  PRO      3.3     9.1    +      -       -      -
   1051A  TRP*     3.9     3.9    +      -       -      -
   1052A  THR      3.5     0.4    -      -       -      -
   1053A  ALA*     1.3    77.7    -      -       -      +
   1055A  ILE*     1.3    62.2    +      -       -      +
   1057A  VAL*     3.7     9.4    -      -       -      +
   1058A  MET*     2.9    26.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE1055 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1051A  TRP*     3.4    26.5    -      -       +      +
   1052A  THR*     4.3     8.5    -      -       -      +
   1053A  ALA      3.1     1.0    -      -       -      -
   1054A  GLY*     1.3    82.0    -      -       -      +
   1056A  ILE*     1.3    59.1    +      -       -      +
   1058A  MET*     3.6    16.1    -      -       +      +
   1059A  VAL*     2.9    33.2    +      -       +      +
   1171A  LEU*     3.7    11.9    -      -       +      -
   1174A  LEU*     3.7    12.8    -      -       +      -
   1175A  LEU*     3.7    31.4    -      -       +      -
   1178A  PHE*     3.9    30.7    -      -       +      -
   1179A  GLY*     6.0     1.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE1056 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1039A  THR*     5.4     0.2    -      -       -      +
   1043A  CYS*     4.2    27.4    -      -       +      -
   1047A  LEU*     5.4    10.1    -      -       +      -
   1052A  THR      3.9    12.5    +      -       -      +
   1053A  ALA*     3.0    10.1    +      -       -      +
   1055A  ILE*     1.3    77.4    -      -       -      +
   1057A  VAL*     1.3    58.9    +      -       +      +
   1059A  VAL*     3.9     1.0    -      -       -      +
   1060A  LEU*     2.9    43.3    +      -       +      +
   1094A  VAL*     4.5     3.6    -      -       +      -
   1097A  THR*     3.3    49.5    +      -       -      +
   1098A  VAL*     3.9    18.6    -      -       +      +
   1101A  ALA*     3.9    14.6    -      -       +      -
   1171A  LEU*     5.5     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL1057 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1036A  LEU*     4.1    27.7    -      -       +      +
   1039A  THR*     4.5     8.5    -      -       +      +
   1040A  PHE*     3.6    39.5    -      -       +      +
   1043A  CYS*     6.0     0.2    -      -       +      -
   1053A  ALA      2.9    15.2    +      -       -      +
   1054A  GLY*     3.8     8.7    -      -       -      +
   1056A  ILE*     1.3    79.3    -      -       +      +
   1058A  MET*     1.3    57.5    +      -       -      +
   1060A  LEU*     3.6     6.8    -      -       -      +
   1061A  ALA*     2.8    29.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET1058 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1054A  GLY      2.9    19.2    +      -       -      +
   1055A  ILE*     3.2    23.5    +      -       -      +
   1057A  VAL*     1.3    77.9    -      -       -      +
   1059A  VAL*     1.3    60.9    +      -       +      +
   1061A  ALA*     3.2     4.6    +      -       -      +
   1062A  LEU*     3.0    54.4    +      -       +      +
   1174A  LEU*     5.0    19.3    -      -       +      -
   1178A  PHE*     5.7     3.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL1059 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1055A  ILE*     2.9    19.9    +      -       +      +
   1058A  MET*     1.3    76.4    -      -       +      +
   1060A  LEU*     1.3    54.3    +      -       -      +
   1062A  LEU*     4.7     3.6    -      -       -      +
   1063A  MET*     2.6    40.2    +      -       +      +
   1097A  THR*     3.8    25.4    -      -       +      -
   1166A  ASN*     3.7    34.8    +      -       +      +
   1167A  GLY*     4.4     4.3    -      -       -      -
   1170A  LEU*     3.9    15.9    -      -       +      -
   1171A  LEU*     3.7    23.3    -      -       +      -
   1174A  LEU*     5.5     1.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU1060 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1036A  LEU*     3.8    11.7    -      -       +      -
   1039A  THR*     3.7    29.6    -      -       +      +
   1056A  ILE*     2.9    37.3    +      -       +      +
   1057A  VAL*     3.6     5.6    -      -       -      +
   1059A  VAL*     1.3    77.5    -      -       -      +
   1061A  ALA*     1.3    56.5    +      -       -      +
   1063A  MET*     3.3     5.0    +      -       +      +
   1064A  THR*     2.9    37.6    +      -       +      +
   1090A  VAL*     3.3    37.0    -      -       +      +
   1093A  GLY*     3.5    27.1    -      -       -      +
   1094A  VAL*     3.8    13.2    -      -       +      -
   1097A  THR*     4.9     1.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1061 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1036A  LEU*     3.9    21.8    -      -       +      -
   1057A  VAL*     2.8    23.3    +      -       +      +
   1058A  MET*     3.6     5.8    -      -       -      +
   1060A  LEU*     1.3    72.9    -      -       -      +
   1062A  LEU*     1.3    64.5    +      -       +      +
   1064A  THR*     3.2     5.3    +      -       -      -
   1065A  VAL*     3.0    35.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1062 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    761A  LEU*     3.7    33.2    -      -       +      -
    765A  LEU*     5.9     0.2    -      -       +      -
   1058A  MET*     3.0    49.0    +      -       +      +
   1059A  VAL*     4.6     3.1    -      -       -      +
   1061A  ALA*     1.3    82.4    -      -       +      +
   1063A  MET*     1.3    56.8    +      -       -      +
   1065A  VAL*     3.9     9.3    -      -       +      +
   1066A  GLU*     3.0    42.6    +      -       -      +
   1166A  ASN*     4.7     2.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET1063 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1059A  VAL*     2.6    25.4    +      -       +      +
   1060A  LEU*     3.3    10.1    -      -       +      +
   1061A  ALA      3.2     0.2    -      -       -      -
   1062A  LEU*     1.3    76.3    -      -       -      +
   1064A  THR*     1.3    62.4    +      -       +      +
   1066A  GLU*     3.4     6.7    +      -       -      +
   1067A  LEU*     3.0    28.4    +      -       +      +
   1089A  SER      5.6     0.9    -      -       -      +
   1093A  GLY*     5.2    12.6    -      -       -      +
   1159A  LEU*     3.7    30.3    -      -       +      -
   1162A  LEU*     3.6    26.9    -      -       +      +
   1163A  GLY*     3.4    28.9    -      -       -      +
   1166A  ASN*     2.9    28.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR1064 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1032A  ILE*     4.6    20.4    -      -       -      +
   1036A  LEU*     4.9     2.1    -      -       +      +
   1060A  LEU*     2.9    15.6    +      -       +      +
   1061A  ALA*     3.2    11.6    +      -       -      -
   1063A  MET*     1.3    78.2    -      -       +      +
   1065A  VAL*     1.3    65.2    +      -       -      +
   1067A  LEU*     3.8     7.3    -      -       -      +
   1068A  PHE*     2.9    30.8    +      -       -      +
   1086A  LEU*     4.4     8.0    -      -       -      +
   1089A  SER*     4.3    10.1    -      -       -      +
   1090A  VAL*     3.6    41.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL1065 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    761A  LEU*     4.7     4.9    -      -       +      -
    764A  SER*     4.4     1.1    -      -       -      -
    765A  LEU*     3.7    29.8    -      -       +      -
    768A  THR*     4.1    12.5    -      -       +      +
   1032A  ILE*     6.4     1.3    -      -       +      -
   1061A  ALA*     3.0    23.0    +      -       +      +
   1062A  LEU*     3.9    11.4    -      -       +      +
   1064A  THR*     1.3    79.7    -      -       -      +
   1066A  GLU*     1.3    58.1    +      -       -      +
   1068A  PHE*     3.9     6.1    -      -       +      +
   1069A  GLY*     3.0    26.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU1066 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    757A  PHE*     4.2     6.6    -      -       -      +
    760A  LEU*     3.5    23.2    -      -       +      +
    761A  LEU*     3.3    30.3    +      -       +      +
    764A  SER*     3.3    27.8    -      -       -      +
   1062A  LEU*     3.0    27.3    +      -       -      +
   1063A  MET*     3.7     4.3    -      -       -      +
   1064A  THR      3.3     0.2    -      -       -      -
   1065A  VAL*     1.3    77.3    -      -       -      +
   1067A  LEU*     1.3    56.9    +      -       -      +
   1070A  MET*     3.0    34.4    +      -       -      +
   1162A  LEU*     4.4    15.0    -      -       +      +
   1166A  ASN*     3.9    18.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1067 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1063A  MET*     3.0    21.2    +      -       +      +
   1064A  THR*     3.8     8.3    -      -       -      +
   1065A  VAL      3.3     0.4    -      -       -      -
   1066A  GLU*     1.3    75.7    -      -       -      +
   1068A  PHE*     1.3    59.4    +      -       -      +
   1070A  MET*     3.8    10.8    -      -       +      -
   1071A  MET*     2.9    47.1    +      -       +      +
   1085A  ILE      5.1     0.2    -      -       -      +
   1086A  LEU*     3.7    20.4    -      -       +      -
   1089A  SER*     3.9    20.6    -      -       -      +
   1155A  VAL*     4.0    15.9    -      -       +      +
   1158A  ILE*     3.7    36.6    -      -       +      +
   1159A  LEU*     4.5     9.2    -      -       +      -
   1162A  LEU*     5.1     2.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE1068 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    768A  THR*     3.9    29.4    -      -       +      -
    771A  VAL*     4.1    24.0    -      -       +      +
   1025A  ARG*     4.9    12.3    -      -       -      -
   1028A  LEU*     4.1    27.4    -      -       +      -
   1064A  THR      2.9    16.8    +      -       -      +
   1065A  VAL*     4.0     4.9    -      -       +      +
   1067A  LEU*     1.3    77.4    -      -       -      +
   1069A  GLY*     1.3    55.6    +      -       -      +
   1071A  MET*     3.3    11.3    -      -       -      +
   1072A  GLY*     3.0    20.1    +      -       -      -
   1078A  LEU*     4.0    25.6    -      -       +      -
   1086A  LEU*     3.9    28.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY1069 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    764A  SER*     3.3    22.7    -      -       -      -
    767A  GLY*     3.2    14.0    -      -       -      -
    768A  THR*     3.6    15.7    -      -       -      -
   1065A  VAL      3.0    12.2    +      -       -      -
   1066A  GLU      4.1     0.2    -      -       -      -
   1068A  PHE*     1.3    76.9    -      -       -      +
   1070A  MET*     1.3    56.2    +      -       -      +
   1072A  GLY*     2.6    26.0    +      -       -      -
   1073A  LEU      2.9     5.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET1070 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    764A  SER*     4.5     8.0    +      -       -      +
   1066A  GLU      3.0    14.8    +      -       -      +
   1067A  LEU*     3.8    22.7    -      -       +      -
   1069A  GLY*     1.3    72.3    -      -       -      +
   1071A  MET*     1.3    61.8    +      -       -      +
   1073A  LEU*     4.0    13.5    -      -       +      +
   1074A  ILE*     3.0    50.6    +      -       +      +
   1158A  ILE*     3.6    38.8    -      -       +      -
   1162A  LEU*     3.7    28.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET1071 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    771A  VAL*     5.3     0.7    -      -       +      -
   1067A  LEU*     2.9    36.1    +      -       +      +
   1068A  PHE*     3.3     9.9    -      -       -      +
   1070A  MET*     1.3    78.6    -      -       -      +
   1072A  GLY*     1.3    60.1    +      -       -      +
   1074A  ILE*     4.4     2.9    -      -       -      -
   1075A  GLY*     3.1    15.2    +      -       -      -
   1076A  ILE*     3.1    45.1    +      -       +      +
   1078A  LEU*     4.5    12.3    -      -       +      -
   1082A  PRO*     3.6    33.0    -      -       +      +
   1086A  LEU*     4.2    18.6    -      -       +      -
   1155A  VAL*     3.8    32.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY1072 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    767A  GLY      3.5    13.7    -      -       -      -
    770A  ARG*     3.6    21.3    +      -       -      +
    771A  VAL*     3.7    16.8    -      -       -      +
   1068A  PHE      3.0     7.7    +      -       -      -
   1069A  GLY      2.6    17.6    +      -       -      -
   1071A  MET*     1.3    70.8    -      -       -      +
   1073A  LEU*     1.3    60.8    +      -       -      -
   1075A  GLY*     3.1    16.0    +      -       -      -
   1076A  ILE      4.9     2.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU1073 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    763A  VAL*     3.6    39.9    -      -       +      +
    764A  SER*     5.3     0.2    -      -       -      -
    766A  TYR*     4.3    11.0    -      -       +      -
    767A  GLY*     3.6    22.2    -      -       -      +
    770A  ARG*     3.4    37.2    +      -       -      +
   1069A  GLY      2.9     9.7    +      -       -      +
   1070A  MET*     3.1    14.7    +      -       +      +
   1072A  GLY*     1.3    71.0    -      -       -      +
   1074A  ILE*     1.3    69.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE1074 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1070A  MET*     3.0    51.5    +      -       +      +
   1071A  MET*     4.6     2.5    -      -       -      +
   1073A  LEU*     1.3    81.1    -      -       +      +
   1075A  GLY*     1.3    58.5    +      -       -      +
   1076A  ILE*     3.8    26.6    -      -       +      +
   1150A  ARG*     5.9     3.1    -      -       -      +
   1154A  ALA*     5.9     5.6    -      -       +      +
   1158A  ILE*     5.8     2.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY1075 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    770A  ARG*     6.3     0.4    -      -       -      -
   1071A  MET      3.1     2.2    +      -       -      -
   1072A  GLY      3.1    17.3    +      -       -      -
   1074A  ILE*     1.3    79.0    -      -       -      +
   1076A  ILE*     1.3    60.0    +      -       -      +
   1077A  LYS*     2.6    34.8    -      -       -      +
----------------------------------------------------------
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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