Contacts of the helix formed by residues 1033 - 1056 (chain A) in PDB entry 6S1M


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 GLU1033 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1025A  VAL*     4.6    19.8    -      -       +      +
   1030A  GLN*     3.3    15.2    +      -       -      +
   1031A  PRO      3.7     2.4    +      -       -      -
   1032A  ARG*     1.3    75.3    -      -       -      +
   1034A  SER*     1.3    62.9    +      -       -      +
   1035A  GLU      3.3     1.3    -      -       -      -
   1036A  LEU*     3.6     7.4    -      -       +      +
   1037A  TYR*     2.8    28.6    +      -       -      +
   1099A  PHE*     3.5    31.2    -      -       +      -
    312B  HIS*     5.8     0.2    -      -       -      -
    314B  CYS*     4.7    16.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER1034 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1033A  GLU*     1.3    77.2    +      -       -      +
   1035A  GLU*     1.3    57.4    +      -       -      +
   1037A  TYR*     3.5     6.0    +      -       -      +
   1038A  GLN*     2.9    40.1    +      -       -      +
    276B  VAL*     5.2     1.2    -      -       -      +
    314B  CYS*     3.4    23.6    +      -       -      +
    315B  MET*     3.4    25.2    +      -       -      +
    317B  PRO*     6.2     2.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU1035 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1032A  ARG*     3.8    30.0    -      -       +      +
   1033A  GLU      3.3     1.4    -      -       -      +
   1034A  SER*     1.3    81.0    -      -       -      +
   1036A  LEU*     1.3    57.5    +      -       +      +
   1038A  GLN*     3.3     9.1    +      -       -      +
   1039A  LYS*     2.9    39.8    +      -       -      +
    273B  VAL*     3.8    37.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1036 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1013A  ILE*     4.6    18.9    -      -       +      +
   1014A  GLY*     4.0    31.0    -      -       -      +
   1025A  VAL*     5.5     7.6    -      -       +      -
   1029A  CYS*     4.8     8.5    -      -       +      +
   1032A  ARG*     3.4    47.6    -      -       +      +
   1033A  GLU*     3.2    12.4    +      -       +      +
   1035A  GLU*     1.3    77.0    -      -       +      +
   1037A  TYR*     1.3    56.9    +      -       -      +
   1039A  LYS*     2.7    31.4    -      -       +      +
   1040A  GLU*     3.8    10.6    -      -       -      +
   1099A  PHE*     4.4     7.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR1037 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1033A  GLU      2.8    16.0    +      -       -      +
   1034A  SER      3.9     3.8    -      -       -      +
   1036A  LEU*     1.3    73.0    -      -       -      +
   1038A  GLN*     1.3    69.9    +      -       -      +
   1039A  LYS      3.1     6.1    -      -       -      +
   1040A  GLU*     4.3     2.5    -      -       -      +
   1041A  VAL*     3.7    30.2    +      -       +      +
   1096A  LEU*     3.9    24.2    -      -       +      +
   1099A  PHE*     3.7    41.7    -      +       +      -
   1102A  PRO*     5.6     3.6    -      -       -      +
    301B  PRO      5.0     6.3    +      -       -      -
    312B  HIS*     3.5    41.6    +      +       +      +
    314B  CYS*     3.9    19.7    -      -       -      -
    315B  MET*     4.4    17.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN1038 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1034A  SER*     2.9    32.9    +      -       -      +
   1035A  GLU*     3.5     8.2    -      -       -      +
   1037A  TYR*     1.3    78.9    -      -       -      +
   1039A  LYS*     1.3    71.6    +      -       +      +
   1040A  GLU      3.5     1.6    +      -       -      -
   1041A  VAL*     3.4    19.7    +      -       -      +
   1042A  SER*     4.0     8.0    +      -       -      -
    272B  SER*     2.8    42.7    +      -       -      +
    273B  VAL*     3.2    26.6    -      -       -      +
    276B  VAL*     3.9     7.4    -      -       -      +
    301B  PRO*     4.9     6.7    -      -       +      -
    315B  MET*     3.7    29.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS1039 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1035A  GLU*     2.9    41.4    +      -       -      +
   1036A  LEU*     2.7    27.0    -      -       +      +
   1037A  TYR      3.5     0.5    -      -       -      +
   1038A  GLN*     1.3    84.0    -      -       -      +
   1040A  GLU*     1.3    77.7    +      -       -      +
   1042A  SER*     6.0     0.9    -      -       -      -
    272B  SER*     5.5     5.9    +      -       -      -
    273B  VAL*     3.6    21.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU1040 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1013A  ILE*     3.9    15.2    -      -       -      +
   1036A  LEU      3.8     6.9    -      -       -      +
   1037A  TYR*     4.3     1.7    -      -       -      +
   1038A  GLN      3.5     1.0    +      -       -      -
   1039A  LYS*     1.3    78.4    -      -       -      +
   1041A  VAL*     1.3    59.9    +      -       -      +
   1042A  SER*     3.3     4.4    -      -       -      +
   1043A  HIS*     3.3    14.9    +      -       +      +
   1044A  LEU*     3.1    22.2    +      -       -      +
   1092A  GLN*     3.2    19.3    -      -       -      +
   1095A  LEU*     3.3    29.2    -      -       +      +
   1096A  LEU*     3.5    19.8    -      -       +      +
   1099A  PHE*     3.2    30.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL1041 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1037A  TYR*     3.7    29.8    -      -       +      +
   1038A  GLN*     3.4    16.2    -      -       -      +
   1039A  LYS      3.5     1.2    -      -       -      -
   1040A  GLU*     1.3    78.1    -      -       -      +
   1042A  SER*     1.3    59.7    +      -       -      +
   1043A  HIS      3.1     4.3    -      -       -      -
   1044A  LEU*     3.8    16.8    -      -       +      +
   1045A  ASN*     2.9    29.2    +      -       -      +
   1096A  LEU*     4.7    10.3    -      -       +      -
    301B  PRO*     4.2    38.1    -      -       +      +
    302B  THR*     4.4    15.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER1042 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1038A  GLN      4.0     7.8    +      -       -      -
   1039A  LYS*     6.0     0.7    -      -       -      -
   1040A  GLU      3.3     2.6    -      -       -      -
   1041A  VAL*     1.3    82.0    -      -       -      +
   1043A  HIS*     1.3    57.0    +      -       -      +
   1045A  ASN*     4.1    11.0    +      -       -      +
   1046A  ALA*     3.8    16.5    +      -       -      +
    253B  GLN*     5.8     3.8    -      -       -      +
    299B  PHE*     6.1     1.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with HIS1043 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    875A  ARG*     5.9     8.3    -      -       -      -
   1040A  GLU*     3.3    19.3    +      -       -      +
   1041A  VAL      3.1     1.0    -      -       -      -
   1042A  SER*     1.3    76.1    -      -       -      +
   1044A  LEU*     1.3    65.4    +      -       -      +
   1045A  ASN      3.2     1.1    -      -       -      -
   1046A  ALA*     3.2     6.6    +      -       -      +
   1047A  LEU*     3.0    49.7    +      -       +      +
   1050A  ARG*     5.3     2.0    -      -       -      -
   1092A  GLN*     3.2    34.7    +      -       +      -
----------------------------------------------------------
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Residues in contact with LEU1044 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1040A  GLU      3.1    13.7    +      -       -      +
   1041A  VAL*     3.5    15.0    +      -       +      +
   1043A  HIS*     1.3    75.3    -      -       -      +
   1045A  ASN*     1.3    56.3    +      -       -      +
   1047A  LEU*     3.2     4.3    +      -       -      +
   1048A  GLU*     3.0    48.1    +      -       +      +
   1089A  LEU*     4.0    21.5    -      -       +      -
   1092A  GLN*     3.9    21.2    -      -       +      +
   1093A  GLU*     4.3    22.4    -      -       +      +
   1096A  LEU*     3.8    23.3    -      -       +      -
     44B  ARG*     5.5     3.4    -      -       -      +
    303B  ASN*     4.9    13.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN1045 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1041A  VAL      2.9    18.6    +      -       -      +
   1042A  SER*     4.1    11.6    +      -       -      +
   1043A  HIS      3.2     0.2    -      -       -      -
   1044A  LEU*     1.3    76.6    -      -       -      +
   1046A  ALA*     1.3    61.5    +      -       -      +
   1048A  GLU*     4.6     5.2    -      -       -      -
   1049A  GLU*     3.5    19.7    +      -       -      +
    300B  ASP      5.4     0.9    -      -       -      +
    302B  THR      3.2    21.6    -      -       -      +
    303B  ASN*     3.4    16.1    -      -       -      +
    304B  TYR*     3.6    23.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA1046 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1042A  SER      3.8    11.4    +      -       -      +
   1043A  HIS*     3.2    12.1    +      -       -      +
   1045A  ASN*     1.3    80.2    -      -       -      +
   1047A  LEU*     1.3    65.5    +      -       +      +
   1049A  GLU*     3.7     9.8    +      -       -      +
   1050A  ARG*     3.6    23.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU1047 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1043A  HIS*     3.0    38.3    +      -       +      +
   1044A  LEU      3.2     4.7    +      -       -      +
   1046A  ALA*     1.3    78.1    -      -       +      +
   1048A  GLU*     1.3    63.2    +      -       -      +
   1049A  GLU      3.2     0.4    -      -       -      -
   1050A  ARG*     3.2    33.8    +      -       -      +
   1051A  PHE*     3.1    23.2    +      -       -      +
   1085A  VAL*     4.0     7.0    -      -       +      +
   1088A  ASP*     3.6    45.5    -      -       +      +
   1089A  LEU*     3.7    17.3    -      -       +      +
   1091A  ASP*     4.9     0.2    -      -       -      +
   1092A  GLN*     3.8    23.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU1048 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1044A  LEU*     3.0    32.0    +      -       +      +
   1045A  ASN      3.9     6.3    -      -       -      +
   1046A  ALA      3.4     0.2    -      -       -      -
   1047A  LEU*     1.3    76.1    -      -       -      +
   1049A  GLU*     1.3    61.9    +      -       -      +
   1050A  ARG      3.4     0.3    +      -       -      -
   1051A  PHE*     3.7    11.5    +      -       -      +
   1052A  SER*     3.7    15.8    +      -       -      -
   1089A  LEU*     4.1    11.2    -      -       +      +
     44B  ARG*     2.8    29.3    +      -       -      -
     46B  PHE*     3.1    29.5    -      -       -      -
    303B  ASN*     4.0     8.1    -      -       +      +
    304B  TYR*     3.9    23.6    -      -       +      +
    305B  THR*     3.3    23.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU1049 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1045A  ASN*     3.5    14.4    +      -       -      +
   1046A  ALA*     4.0     9.5    -      -       -      +
   1047A  LEU      3.2     0.8    -      -       -      -
   1048A  GLU*     1.3    79.1    -      -       -      +
   1050A  ARG*     1.3    63.9    +      -       -      +
   1052A  SER*     4.1     3.3    +      -       -      -
   1053A  ARG*     3.7    40.2    +      -       +      +
    304B  TYR*     3.9    40.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG1050 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1043A  HIS*     5.3     2.8    -      -       -      -
   1046A  ALA*     3.6    13.8    +      -       -      +
   1047A  LEU*     3.2    36.7    +      -       -      +
   1049A  GLU*     1.3    82.2    -      -       -      +
   1051A  PHE*     1.3    64.8    +      -       -      +
   1052A  SER      3.3     0.6    +      -       -      -
   1053A  ARG*     3.7     3.9    +      -       -      +
   1054A  LEU*     3.5    32.1    +      -       +      +
   1081A  MET*     6.0     5.6    -      -       +      -
   1084A  LYS*     4.1    13.0    -      -       -      +
   1085A  VAL*     3.7    30.3    -      -       +      +
   1088A  ASP*     3.9    19.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE1051 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1047A  LEU      3.1    14.7    +      -       -      +
   1048A  GLU*     3.8     6.7    -      -       -      +
   1049A  GLU      3.6     0.2    -      -       -      -
   1050A  ARG*     1.3    77.8    -      -       -      +
   1052A  SER*     1.3    59.9    +      -       -      +
   1054A  LEU*     3.9     1.9    -      -       -      +
   1055A  TRP*     3.1    52.8    +      +       +      +
   1085A  VAL*     4.0    10.8    -      -       +      +
   1086A  ARG*     3.8    35.4    -      -       +      -
   1089A  LEU*     4.0    22.0    -      -       +      -
     46B  PHE*     3.9    31.9    -      +       +      -
     47B  SER      4.5     5.8    -      -       -      -
     48B  ARG      4.0    19.3    -      -       -      -
     50B  TYR*     4.3    21.5    -      +       -      -
    386B  PRO*     4.5    10.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER1052 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1048A  GLU      3.7    13.3    +      -       -      -
   1049A  GLU*     4.6     3.6    -      -       -      -
   1050A  ARG      3.3     0.6    -      -       -      -
   1051A  PHE*     1.3    77.7    -      -       -      +
   1053A  ARG*     1.3    66.3    +      -       -      +
   1054A  LEU      3.4     0.5    +      -       -      -
   1056A  THR*     3.3    27.4    +      -       -      +
     50B  TYR*     2.7    34.7    +      -       -      -
    304B  TYR*     6.0     3.1    -      -       -      -
    305B  THR*     4.8     4.3    -      -       -      +
    383B  GLY*     4.1    20.1    -      -       -      -
    384B  CYS      4.0     5.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG1053 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1049A  GLU*     3.7    37.2    +      -       -      +
   1050A  ARG*     3.7     6.1    +      -       +      +
   1051A  PHE      3.5     0.6    -      -       -      -
   1052A  SER*     1.3    79.0    -      -       -      +
   1054A  LEU*     1.3    59.9    +      -       +      +
   1056A  THR*     4.1     5.8    -      -       -      +
   1057A  GLN*     3.6    11.6    +      -       -      +
   1060A  ARG*     4.4     3.0    +      -       -      +
    105B  PRO*     4.1    19.2    +      -       -      +
    106B  SER*     3.5    29.9    +      -       -      +
    107B  ILE*     3.2    43.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU1054 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1050A  ARG*     3.5    26.2    -      -       +      +
   1051A  PHE*     3.4     3.7    +      -       -      +
   1052A  SER      3.2     0.6    -      -       -      -
   1053A  ARG*     1.3    76.6    -      -       +      +
   1055A  TRP*     1.3    67.0    +      -       +      +
   1056A  THR      3.2     2.0    -      -       -      -
   1057A  GLN*     3.2    17.2    +      -       -      +
   1058A  CYS*     3.6    11.4    +      -       -      -
   1078A  ILE*     4.0    19.6    -      -       +      +
   1081A  MET*     3.5    48.9    -      -       +      +
   1082A  ARG*     4.3    14.0    -      -       +      +
   1085A  VAL*     4.0    15.3    -      -       +      -
    107B  ILE*     3.7    28.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with TRP1055 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1051A  PHE*     3.1    48.1    +      +       +      +
   1054A  LEU*     1.3    79.4    -      -       +      +
   1056A  THR*     1.3    57.7    +      -       -      +
   1057A  GLN      3.5     0.2    -      -       -      -
   1058A  CYS*     4.4    13.6    +      -       +      +
   1059A  GLN*     4.5     9.7    -      -       -      +
   1069A  VAL*     5.1    13.3    -      -       +      +
   1082A  ARG*     3.2    61.5    +      -       +      +
   1083A  LYS*     5.9     0.4    -      -       -      -
   1085A  VAL*     6.4     0.7    -      -       +      -
   1086A  ARG*     3.4    35.1    -      -       -      +
     48B  ARG      4.9     2.5    -      -       -      +
     49B  GLN*     4.0    34.1    -      -       +      -
     50B  TYR*     4.4    22.6    +      -       +      +
    107D  LEU      3.3    25.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR1056 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1052A  SER      3.3    20.6    +      -       -      +
   1053A  ARG*     4.1     5.4    -      -       -      +
   1055A  TRP*     1.3    76.0    -      -       -      +
   1057A  GLN*     1.3    64.8    +      -       -      +
   1058A  CYS      3.3     1.6    -      -       -      -
   1059A  GLN*     3.4    31.4    +      -       -      +
   1060A  ARG*     3.4    30.1    +      -       -      +
     50B  TYR*     4.2    13.2    -      -       -      -
    379B  PRO*     3.8    16.4    +      -       -      -
    380B  ASP*     4.0    22.2    +      -       -      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il