Contacts of the helix formed by residues 1272 - 1293 (chain A) in PDB entry 3F2B


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 PRO1272 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    894A  GLY      4.1    11.7    -      -       -      -
    895A  SER*     4.2     6.3    -      -       -      -
    898A  SER*     5.1     1.1    -      -       -      +
    962A  THR*     4.0    14.4    -      -       +      -
   1212A  CYS*     4.5     0.2    -      -       -      -
   1213A  ARG*     3.4    29.8    -      -       +      +
   1214A  ASP*     3.4     5.6    -      -       -      +
   1271A  PHE*     1.3    88.5    -      -       +      +
   1273A  LYS*     1.3    67.7    +      -       -      +
   1274A  ALA      4.4     3.1    -      -       -      +
   1275A  HIS*     2.9    21.6    +      -       +      +
   1276A  ALA      3.2     8.1    +      -       -      -
   1456A  DGT      3.2    36.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS1273 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    934A  GLY      4.8     7.7    +      -       -      -
    935A  SER*     6.5     0.4    -      -       -      -
    956A  HIS*     3.2    26.9    +      -       +      +
    957A  ASP*     4.0     9.9    +      -       -      +
    958A  ILE*     3.4    27.8    -      -       +      -
   1176A  SER*     6.1     3.8    -      -       -      -
   1179A  VAL*     4.2    22.4    -      -       +      -
   1212A  CYS*     3.8    22.4    -      -       +      +
   1214A  ASP*     2.7    28.6    +      -       +      +
   1215A  ASP*     4.4    15.0    +      -       -      -
   1272A  PRO*     1.3    71.6    -      -       -      +
   1274A  ALA*     1.3    58.4    +      -       -      +
   1276A  ALA*     3.1     8.2    +      -       -      +
   1277A  ALA*     2.8    30.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA1274 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    893A  ARG      5.8     0.2    -      -       -      -
    894A  GLY      3.9     8.5    -      -       -      +
    895A  SER*     4.8     1.1    -      -       -      +
    897A  GLY*     3.3    42.8    -      -       -      +
    898A  SER*     3.6    11.9    -      -       -      +
    910A  VAL*     3.6     9.6    -      -       +      +
    958A  ILE*     3.8    15.8    -      -       +      +
   1272A  PRO*     3.0     1.8    +      -       +      +
   1273A  LYS*     1.3    77.5    -      -       -      +
   1275A  HIS*     1.3    57.8    +      -       -      +
   1277A  ALA*     4.5     0.2    -      -       -      -
   1278A  ALA*     3.0    29.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS1275 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    893A  ARG*     3.4    12.7    -      -       +      +
    894A  GLY      3.0    29.5    +      -       -      +
   1271A  PHE*     3.4    37.1    -      +       +      -
   1272A  PRO*     2.9    16.7    +      -       +      +
   1274A  ALA*     1.3    76.3    -      -       -      +
   1276A  ALA*     1.3    64.9    +      -       -      +
   1277A  ALA      3.1     0.2    +      -       -      -
   1278A  ALA*     3.2     5.1    +      -       -      +
   1279A  TYR*     2.9    66.7    +      +       -      +
   1456A  DGT      3.3    40.1    +      -       +      +
      6T    G      6.1     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA1276 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1179A  VAL*     3.8    26.7    -      -       +      +
   1182A  SER*     3.6    21.7    +      -       -      +
   1183A  GLY*     4.3     3.4    -      -       -      +
   1212A  CYS*     5.8     2.2    -      -       +      -
   1271A  PHE*     4.1    13.9    -      -       +      -
   1272A  PRO      3.2     4.1    +      -       -      +
   1273A  LYS*     3.1    13.1    +      -       -      +
   1275A  HIS*     1.3    79.6    -      -       -      +
   1277A  ALA*     1.3    57.7    +      -       -      +
   1279A  TYR*     3.4     1.2    +      -       -      -
   1280A  VAL*     2.9    36.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1277 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    910A  VAL*     4.4     8.5    -      -       +      -
    956A  HIS*     4.3    31.2    -      -       +      +
   1175A  PHE*     3.6     8.5    -      -       +      -
   1179A  VAL*     4.0    19.9    -      -       +      +
   1273A  LYS*     2.8    20.2    +      -       +      +
   1274A  ALA*     3.9     4.3    -      -       -      +
   1276A  ALA*     1.3    71.6    -      -       -      +
   1278A  ALA*     1.3    68.1    +      -       -      +
   1280A  VAL      3.4     0.2    +      -       -      -
   1281A  LEU*     2.9    25.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1278 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    892A  SER*     3.5    43.5    -      -       -      +
    893A  ARG*     4.4     1.8    -      -       -      +
    910A  VAL*     3.7    10.7    -      -       +      +
   1274A  ALA      3.0    18.1    +      -       -      +
   1275A  HIS*     3.5     6.1    -      -       -      +
   1277A  ALA*     1.3    79.2    -      -       -      +
   1279A  TYR*     1.3    65.2    +      -       +      +
   1281A  LEU*     3.3     5.1    +      -       -      +
   1282A  MET*     3.1    28.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR1279 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    892A  SER      3.9    12.8    -      -       -      -
    893A  ARG*     3.4    26.0    +      -       +      -
    977A  ASN*     3.3    30.3    +      -       -      -
   1102A  HIS*     3.4    17.1    -      +       -      -
   1104A  ASP*     5.0     8.4    -      -       -      +
   1156A  PRO*     5.5     1.3    -      -       +      +
   1157A  GLU*     3.2    41.0    -      -       +      +
   1158A  PHE*     5.8     1.1    -      -       -      -
   1182A  SER*     5.0     5.8    -      -       -      +
   1271A  PHE*     5.4     4.0    -      +       +      -
   1275A  HIS*     2.9    56.8    +      +       +      +
   1276A  ALA*     4.2     3.6    -      -       -      +
   1278A  ALA*     1.3    75.3    -      -       -      +
   1280A  VAL*     1.3    64.0    +      -       +      +
   1282A  MET*     3.2     9.3    +      -       +      +
   1283A  ALA*     2.9    22.4    +      -       -      +
      6T    G      5.4     5.1    +      -       -      -
      7T    G      5.7     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL1280 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1133A  PHE*     6.3     0.2    -      -       +      -
   1158A  PHE*     4.2    11.2    -      -       +      -
   1175A  PHE*     3.7    22.4    -      -       +      -
   1178A  LEU*     3.8    35.7    -      -       +      +
   1179A  VAL*     3.9    12.3    -      -       +      -
   1182A  SER*     3.7    24.2    -      -       -      -
   1276A  ALA      2.9    26.4    +      -       -      +
   1277A  ALA      3.9     2.7    -      -       -      +
   1279A  TYR*     1.3    77.9    -      -       -      +
   1281A  LEU*     1.3    61.8    +      -       -      +
   1283A  ALA*     3.1     8.4    +      -       +      +
   1284A  VAL*     2.9    27.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1281 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    909A  GLU*     4.0    26.7    -      -       +      +
    910A  VAL*     6.1     0.9    -      -       +      -
    937A  PHE*     4.0    26.2    -      -       +      -
   1122A  ILE      6.0     0.4    -      -       -      +
   1124A  THR*     4.2    15.7    -      -       +      -
   1175A  PHE*     3.8    13.9    -      -       +      -
   1277A  ALA      2.9    18.6    +      -       -      +
   1278A  ALA*     3.6     8.1    -      -       -      +
   1280A  VAL*     1.3    75.8    -      -       -      +
   1282A  MET*     1.3    63.3    +      -       +      +
   1284A  VAL*     3.5     3.0    +      -       +      +
   1285A  ARG*     3.1    66.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET1282 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    889A  LEU*     5.5     7.6    -      -       -      -
    891A  GLY*     4.6    14.4    -      -       -      -
    892A  SER*     4.6    18.6    -      -       -      +
    909A  GLU*     4.6    10.1    -      -       +      +
   1104A  ASP*     3.6    37.0    -      -       +      +
   1105A  PRO      5.8     0.4    -      -       -      -
   1108A  ILE*     4.5    16.4    -      -       +      -
   1278A  ALA*     3.1    26.7    +      -       +      +
   1279A  TYR*     3.2    11.4    +      -       +      +
   1280A  VAL      3.1     0.4    -      -       -      -
   1281A  LEU*     1.3    84.5    -      -       +      +
   1283A  ALA*     1.3    65.6    +      -       -      +
   1285A  ARG*     3.4    24.5    +      -       -      +
   1286A  ILE*     3.1    29.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1283 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1133A  PHE*     4.6     5.4    -      -       +      -
   1155A  ILE*     4.1    20.7    -      -       +      +
   1156A  PRO*     4.2    19.2    -      -       +      +
   1157A  GLU*     6.5     0.2    -      -       +      -
   1158A  PHE*     4.2    18.2    -      -       +      -
   1279A  TYR      2.9    13.4    +      -       -      +
   1280A  VAL*     3.1    13.9    +      -       +      +
   1282A  MET*     1.3    77.6    -      -       -      +
   1284A  VAL*     1.3    57.3    +      -       +      +
   1286A  ILE*     3.3     3.3    +      -       -      +
   1287A  ALA*     2.8    29.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1284 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1122A  ILE*     5.0     2.5    -      -       +      -
   1123A  PRO      4.0    20.6    -      -       -      +
   1124A  THR*     4.2    19.3    -      -       +      -
   1129A  VAL*     3.9     7.2    -      -       +      +
   1130A  MET*     4.2    25.1    -      -       +      -
   1133A  PHE*     4.3     9.0    -      -       +      -
   1175A  PHE*     4.8     5.8    -      -       +      -
   1178A  LEU*     4.3    17.0    -      -       +      -
   1280A  VAL*     2.9    23.5    +      -       +      +
   1281A  LEU*     4.0     6.3    -      -       -      +
   1282A  MET      3.2     0.4    -      -       -      -
   1283A  ALA*     1.3    73.1    -      -       -      +
   1285A  ARG*     1.3    67.6    +      -       -      +
   1287A  ALA*     3.2     7.0    +      -       -      +
   1288A  TYR*     2.9    22.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG1285 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    889A  LEU*     6.1     2.2    -      -       -      +
    909A  GLU*     2.8    42.2    +      -       -      -
   1108A  ILE*     4.1    26.5    -      -       +      +
   1119A  PRO*     3.3    27.6    +      -       +      +
   1120A  LYS*     4.0    23.3    +      -       -      +
   1122A  ILE*     3.8    20.4    +      -       +      +
   1281A  LEU*     3.1    46.5    +      -       +      +
   1282A  MET*     3.4    21.8    +      -       -      +
   1284A  VAL*     1.3    76.4    -      -       -      +
   1286A  ILE*     1.3    63.0    +      -       +      +
   1288A  TYR*     3.1    18.4    +      -       -      +
   1289A  PHE*     3.3    13.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE1286 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1104A  ASP*     3.9    24.2    -      -       -      +
   1107A  VAL*     4.0    29.8    -      -       +      -
   1108A  ILE*     4.1    22.2    -      -       +      -
   1111A  LEU*     5.1     3.8    -      -       +      -
   1155A  ILE*     4.2     7.9    -      -       +      -
   1156A  PRO*     4.0    18.4    -      -       +      -
   1282A  MET      3.1    18.5    +      -       -      +
   1283A  ALA*     3.7     3.6    -      -       -      +
   1285A  ARG*     1.3    72.6    -      -       -      +
   1287A  ALA*     1.3    67.4    +      -       -      +
   1289A  PHE*     2.9    20.3    +      -       -      +
   1290A  LYS*     3.0     9.5    +      -       -      +
   1297A  TYR*     3.6    29.5    -      -       +      -
   1305A  ARG*     4.3     2.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1287 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1129A  VAL*     3.4    19.7    -      -       +      -
   1132A  ILE*     3.9    19.5    -      -       +      -
   1133A  PHE*     4.3     8.5    -      -       +      -
   1155A  ILE*     3.9    13.7    -      -       +      +
   1283A  ALA      2.8    17.8    +      -       -      +
   1284A  VAL*     3.4     6.7    -      -       -      +
   1286A  ILE*     1.3    76.3    -      -       -      +
   1288A  TYR*     1.3    64.2    +      -       -      +
   1290A  LYS*     2.9    15.0    +      -       -      +
   1291A  VAL*     3.1    17.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR1288 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1117A  ILE*     4.5    19.6    -      -       +      +
   1122A  ILE*     3.6    46.2    -      -       +      -
   1123A  PRO*     4.2    17.9    -      -       +      -
   1126A  ASP*     4.2     5.4    -      -       +      -
   1129A  VAL*     3.8    19.7    -      -       +      -
   1284A  VAL      2.9     7.8    +      -       -      +
   1285A  ARG      3.2    11.2    -      -       -      +
   1286A  ILE      3.0     0.2    -      -       -      -
   1287A  ALA*     1.3    77.8    -      -       -      +
   1289A  PHE*     1.3    64.9    +      +       -      +
   1291A  VAL*     4.0     0.2    -      -       -      -
   1292A  HIS*     3.0    54.9    +      +       +      +
   1293A  HIS*     4.2    20.2    +      +       -      -
----------------------------------------------------------
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Residues in contact with PHE1289 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1108A  ILE*     5.4     4.5    -      -       +      -
   1111A  LEU*     3.5    54.3    -      -       +      -
   1112A  GLN*     4.7     2.0    -      -       +      -
   1115A  SER*     3.2    31.4    -      -       -      -
   1117A  ILE*     4.4    16.8    -      -       +      -
   1119A  PRO*     5.0     6.7    -      -       +      -
   1122A  ILE*     3.5    27.4    -      -       +      -
   1285A  ARG      3.3    14.8    -      -       -      -
   1286A  ILE*     2.9     9.8    +      -       +      +
   1288A  TYR*     1.3    77.4    -      +       -      +
   1290A  LYS*     1.3    67.1    +      -       -      +
   1291A  VAL      3.0     2.2    -      -       -      -
   1293A  HIS*     2.9    56.3    +      +       +      +
   1296A  LEU*     4.9     0.4    -      -       +      -
   1297A  TYR*     4.0     6.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS1290 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1132A  ILE*     4.1    11.9    -      -       +      -
   1139A  LEU*     4.2    11.7    -      -       +      -
   1151A  GLY      2.9    27.8    +      -       -      +
   1152A  THR      3.6     0.2    -      -       -      -
   1153A  ILE      2.5    36.0    +      -       -      +
   1155A  ILE*     4.1     4.0    -      -       +      -
   1286A  ILE      3.0     8.0    +      -       -      +
   1287A  ALA*     2.9    15.3    +      -       -      +
   1289A  PHE*     1.3    77.5    -      -       -      +
   1291A  VAL*     1.3    57.1    +      -       -      +
   1294A  PRO*     3.8     4.0    -      -       -      +
   1297A  TYR*     3.6    36.9    -      -       +      +
   1298A  TYR*     4.3     0.9    -      -       -      -
   1351A  GLU*     2.8    40.1    +      -       -      -
   1355A  ARG*     2.3    39.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL1291 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1128A  ASP*     4.0    23.8    -      -       +      +
   1129A  VAL*     4.2     8.1    -      -       +      -
   1132A  ILE*     3.6    30.5    -      -       +      -
   1138A  PRO*     4.1    15.1    -      -       +      +
   1139A  LEU*     4.2     7.6    -      -       +      -
   1287A  ALA      3.1    13.9    +      -       -      +
   1288A  TYR      4.1     2.7    -      -       -      +
   1289A  PHE      3.0     0.2    -      -       -      -
   1290A  LYS*     1.3    81.8    -      -       +      +
   1292A  HIS*     1.3    86.5    +      -       +      +
   1293A  HIS      3.5     0.2    -      -       -      -
   1294A  PRO*     3.7     9.2    -      -       -      +
   1355A  ARG*     4.1    10.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS1292 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1126A  ASP*     3.0    24.2    +      -       -      -
   1128A  ASP*     4.9    11.9    -      -       +      -
   1129A  VAL*     4.0     9.1    -      -       +      +
   1288A  TYR*     3.0    49.4    +      +       +      +
   1291A  VAL*     1.3    91.5    +      -       +      +
   1293A  HIS*     1.3    85.6    +      -       +      +
   1294A  PRO*     3.4     5.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS1293 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1115A  SER*     5.2     2.9    -      -       -      -
   1117A  ILE*     3.5    26.3    -      -       +      +
   1288A  TYR*     4.2    12.7    +      +       -      -
   1289A  PHE*     2.9    35.8    +      +       +      +
   1292A  HIS*     1.3    98.1    +      -       +      +
   1294A  PRO*     1.3    67.2    -      -       -      +
   1295A  LEU      3.4     2.0    -      -       -      -
   1296A  LEU*     3.1    39.9    +      -       +      +
   1297A  TYR      3.1     9.5    +      -       -      -
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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