Contacts of the helix formed by residues 756 - 783 (chain B) in PDB entry 6ZGI


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 TYR 756 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    968A  SER*     6.1     0.2    -      -       -      -
    970A  PHE*     3.5    44.5    +      +       -      -
    971A  GLY      3.7     2.5    +      -       -      -
    752B  LEU      4.2     8.5    -      -       -      -
    753B  LEU*     2.8    32.1    +      -       +      +
    755B  GLN*     1.3    93.9    -      -       +      +
    757B  GLY*     1.3    63.0    +      -       -      +
    758B  SER      3.3     3.7    +      -       -      -
    759B  PHE*     3.3    33.1    +      +       +      +
    760B  CYS*     3.7    12.9    +      -       -      -
    994B  ASP*     3.2    23.8    +      -       -      -
    997B  ILE*     4.0    17.9    -      -       +      -
    998B  THR*     4.4     9.0    +      -       +      -
   1001B  LEU*     3.5    31.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 757 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    753B  LEU      4.1     2.1    +      -       -      -
    754B  LEU*     4.0     9.6    +      -       -      -
    755B  GLN      3.7     1.8    -      -       -      -
    756B  TYR*     1.3    77.8    -      -       -      +
    758B  SER*     1.3    62.9    +      -       -      +
    760B  CYS*     3.3     9.0    +      -       -      +
    761B  THR*     3.0    26.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 758 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    961A  THR*     4.4     6.9    -      -       -      +
    964A  LYS*     6.0     2.0    -      -       -      +
    965A  GLN*     3.1    35.4    +      -       -      +
    968A  SER*     5.8     2.2    -      -       -      -
    756B  TYR      3.3     1.0    -      -       -      -
    757B  GLY*     1.3    75.8    -      -       -      +
    759B  PHE*     1.3    62.2    +      -       -      +
    761B  THR*     3.3     8.1    +      -       -      -
    762B  GLN*     2.9    27.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 759 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    965A  GLN*     3.9    29.6    -      -       +      -
    968A  SER*     4.1    13.5    -      -       -      -
    970A  PHE*     3.8    35.0    -      +       -      -
    999A  GLY      5.7     0.2    -      -       -      -
   1002A  GLN*     6.1     7.4    -      -       +      -
   1003A  SER*     4.0    19.7    -      -       -      -
   1006A  THR*     6.2     1.8    -      -       +      -
    756B  TYR*     3.6    35.4    -      +       +      +
    757B  GLY      3.2     0.2    -      -       -      -
    758B  SER*     1.3    80.0    -      -       -      +
    760B  CYS*     1.3    57.2    +      -       -      +
    762B  GLN*     3.3    12.4    +      -       -      +
    763B  LEU*     3.0    36.4    +      -       +      +
   1001B  LEU*     4.6    16.6    -      -       +      -
   1005B  GLN*     5.6    10.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 760 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    738B  CYS*     2.0    54.0    -      -       +      +
    739B  THR*     5.9     0.4    -      -       -      -
    742B  ILE*     4.9     2.7    -      -       -      -
    753B  LEU*     5.3    10.1    -      -       -      -
    756B  TYR      3.7    11.1    +      -       -      -
    757B  GLY*     3.3    10.0    +      -       -      +
    759B  PHE*     1.3    76.6    -      -       -      +
    761B  THR*     1.3    65.4    +      -       -      +
    763B  LEU*     3.4     6.5    +      -       -      +
    764B  ASN*     3.0    30.9    +      -       -      +
   1001B  LEU*     4.3    10.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 761 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    302A  THR*     4.4    29.6    +      -       +      +
    757B  GLY      3.0    14.7    +      -       -      -
    758B  SER*     3.6    10.1    -      -       -      +
    759B  PHE      3.3     0.2    -      -       -      -
    760B  CYS*     1.3    76.6    -      -       -      +
    762B  GLN*     1.3    56.7    +      -       -      +
    764B  ASN*     3.4     7.8    +      -       -      +
    765B  ARG*     3.0    51.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 762 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    961A  THR*     4.7    10.9    -      -       +      +
    965A  GLN*     3.3    25.3    +      -       -      +
   1006A  THR*     3.9    22.7    -      -       -      +
   1007A  TYR*     5.6     2.0    -      -       -      +
   1010A  GLN*     3.5    30.7    +      -       -      +
    758B  SER*     2.9    15.7    +      -       -      +
    759B  PHE*     3.6    13.6    -      -       -      +
    760B  CYS      3.3     0.2    -      -       -      -
    761B  THR*     1.3    74.7    -      -       -      +
    763B  LEU*     1.3    65.7    +      -       +      +
    765B  ARG*     3.2    27.6    +      -       -      +
    766B  ALA*     3.1    21.8    +      -       -      +
   1005B  GLN*     5.4     3.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 763 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    736B  VAL*     6.2     1.1    -      -       +      -
    738B  CYS*     4.5     4.3    -      -       -      -
    759B  PHE*     3.0    22.7    +      -       +      +
    760B  CYS*     3.7    12.1    -      -       -      +
    762B  GLN*     1.3    76.4    -      -       +      +
    764B  ASN*     1.3    66.3    +      -       -      +
    766B  ALA*     3.2     7.9    +      -       -      +
    767B  LEU*     3.1    27.9    +      -       +      +
   1001B  LEU*     5.1     7.4    -      -       +      +
   1004B  LEU*     3.8    35.2    -      -       +      +
   1005B  GLN*     3.8    35.7    -      -       +      +
   1008B  VAL*     3.7    31.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 764 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    735B  SER*     4.6     4.7    +      -       -      -
    736B  VAL*     3.2    35.9    +      -       -      +
    738B  CYS*     5.3     5.5    -      -       -      +
    760B  CYS*     3.0    24.5    +      -       -      +
    761B  THR*     3.8     6.3    -      -       -      +
    763B  LEU*     1.3    76.0    -      -       -      +
    765B  ARG*     1.3    67.0    +      -       -      +
    767B  LEU*     3.3     8.4    +      -       -      +
    768B  THR*     3.0    33.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 765 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    957A  GLN*     4.0    33.9    +      -       -      +
    961A  THR*     3.7    24.0    +      -       -      +
    758B  SER      5.8     0.2    +      -       -      -
    761B  THR*     3.0    39.5    +      -       +      +
    762B  GLN*     3.2    32.7    +      -       -      +
    764B  ASN*     1.3    76.2    -      -       -      +
    766B  ALA*     1.3    62.1    +      -       -      +
    768B  THR*     2.9    20.8    +      -       -      -
    769B  GLY*     3.0     9.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 766 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1010A  GLN*     4.7    10.1    -      -       -      +
    762B  GLN      3.1    12.0    +      -       -      +
    763B  LEU*     3.2     7.8    +      -       -      +
    765B  ARG*     1.3    76.8    -      -       -      +
    767B  LEU*     1.3    62.9    +      -       -      +
    769B  GLY*     3.3     3.4    +      -       -      -
    770B  ILE*     3.1    27.8    +      -       -      +
   1008B  VAL*     3.8    21.1    -      -       +      -
   1012B  LEU*     4.4    18.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 767 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    734B  THR*     4.0    37.4    -      -       -      +
    735B  SER*     4.3     1.8    -      -       -      -
    736B  VAL*     4.0    35.7    -      -       +      +
    763B  LEU*     3.1    20.7    +      -       +      +
    764B  ASN*     3.3    10.3    +      -       -      +
    765B  ARG      3.3     0.2    -      -       -      -
    766B  ALA*     1.3    76.5    -      -       -      +
    768B  THR*     1.3    58.7    +      -       +      +
    770B  ILE*     3.2    22.7    +      -       +      +
    771B  ALA*     3.0    27.5    +      -       -      +
   1007B  TYR*     4.6    10.8    -      -       +      -
   1008B  VAL*     4.4    24.5    -      -       +      -
   1011B  GLN*     4.7     6.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 768 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    314A  GLN*     5.3    12.3    -      -       +      -
    735B  SER*     5.9     2.7    -      -       -      +
    764B  ASN*     3.0    17.8    +      -       +      +
    765B  ARG*     2.9    17.3    +      -       -      -
    767B  LEU*     1.3    74.6    -      -       +      +
    769B  GLY*     1.3    65.4    +      -       -      +
    771B  ALA*     3.2     6.7    +      -       -      +
    772B  VAL*     3.0    32.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 769 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    765B  ARG      3.0    13.8    +      -       -      -
    766B  ALA      3.3     3.6    +      -       -      -
    768B  THR*     1.3    77.9    +      -       -      +
    770B  ILE*     1.3    62.4    +      -       -      +
    772B  VAL*     3.3    11.9    -      -       -      +
    773B  GLU*     3.1    24.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 770 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    731B  MET*     4.8    10.8    -      -       +      -
    732B  THR      5.7     2.9    -      -       -      +
    733B  LYS*     6.4     0.9    -      -       -      -
    766B  ALA*     3.1    17.7    +      -       +      +
    767B  LEU*     3.2    19.3    +      -       +      +
    769B  GLY*     1.3    74.2    -      -       -      +
    771B  ALA*     1.3    64.5    +      -       -      +
    773B  GLU*     3.1     8.2    +      -       -      +
    774B  GLN*     3.1    33.1    +      -       +      +
   1008B  VAL      4.9     0.7    -      -       -      +
   1011B  GLN*     4.0    32.5    -      -       +      +
   1012B  LEU*     3.9    28.5    -      -       +      +
   1015B  ALA*     3.7    24.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 771 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    733B  LYS*     3.3    49.2    -      -       +      +
    734B  THR      5.3     3.8    -      -       -      +
    767B  LEU      3.0    14.9    +      -       -      +
    768B  THR*     3.2     9.6    +      -       -      +
    770B  ILE*     1.3    79.3    -      -       -      +
    772B  VAL*     1.3    63.3    +      -       +      +
    774B  GLN*     3.4     8.2    +      -       -      +
    775B  ASP*     3.6     7.3    -      -       -      +
    861B  LEU*     4.9    11.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 772 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    768B  THR*     3.0    16.5    +      -       -      +
    769B  GLY*     3.3    16.8    -      -       -      +
    771B  ALA*     1.3    75.8    -      -       +      +
    773B  GLU*     1.3    73.0    +      -       +      +
    774B  GLN      3.3     0.2    +      -       -      -
    775B  ASP*     3.3    10.5    +      -       -      +
    776B  LYS*     3.1    20.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 773 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1017A  GLU*     5.5     2.5    -      -       -      +
    769B  GLY      3.1    14.1    +      -       -      +
    770B  ILE*     3.4    11.2    -      -       -      +
    772B  VAL*     1.3    81.9    -      -       -      +
    774B  GLN*     1.3    67.5    +      -       -      +
    776B  LYS*     3.2    23.6    +      -       -      +
    777B  ASN*     2.9    41.0    +      -       -      +
   1015B  ALA*     6.0     2.5    -      -       +      +
   1019B  ARG*     3.4    39.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 774 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    730B  SER*     3.4    16.5    -      -       -      -
    731B  MET*     3.1    59.0    +      -       +      +
    732B  THR      5.3     0.9    -      -       -      +
    733B  LYS*     4.3    14.6    -      -       +      -
    770B  ILE*     3.1    32.3    +      -       +      +
    771B  ALA      3.7     7.9    -      -       -      +
    772B  VAL      3.2     0.6    -      -       -      -
    773B  GLU*     1.3    83.7    -      -       -      +
    775B  ASP*     1.3    63.4    +      -       -      +
    777B  ASN*     3.2    18.8    +      -       -      +
    778B  THR*     3.1    24.1    +      -       -      -
   1015B  ALA*     4.4     9.9    +      -       -      +
   1018B  ILE*     4.1     3.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 775 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    733B  LYS*     3.3    24.9    +      -       -      +
    771B  ALA      3.6     9.7    +      -       -      +
    772B  VAL*     3.3    10.0    +      -       -      +
    774B  GLN*     1.3    73.7    -      -       -      +
    776B  LYS*     1.3    65.1    +      -       -      +
    778B  THR*     3.3     7.0    +      -       -      +
    779B  GLN*     3.0    26.1    +      -       -      +
    863B  PRO*     4.2     5.7    -      -       -      +
    864B  LEU*     3.4    48.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 776 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    947A  LYS*     3.4    27.7    -      -       -      +
    772B  VAL      3.1    13.1    +      -       -      +
    773B  GLU*     3.2    28.8    +      -       -      +
    775B  ASP*     1.3    76.6    -      -       -      +
    777B  ASN*     1.3    62.7    +      -       -      +
    779B  GLN*     3.4    12.7    +      -       +      +
    780B  GLU*     2.9    49.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 777 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    729B  VAL*     3.5    25.3    +      -       -      +
    773B  GLU*     2.9    30.7    +      -       -      +
    774B  GLN*     3.2    26.9    +      -       -      +
    776B  LYS*     1.3    76.1    -      -       -      +
    778B  THR*     1.3    62.1    +      -       -      +
    780B  GLU*     3.2    14.8    +      -       -      +
    781B  VAL*     3.1    27.4    +      -       -      +
   1015B  ALA      5.5     0.2    +      -       -      -
   1018B  ILE*     4.6     1.2    -      -       -      +
   1019B  ARG*     4.0    32.1    -      -       -      +
   1022B  ALA*     3.9    15.6    -      -       +      +
   1023B  ASN*     5.7     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 778 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    729B  VAL*     4.0    11.7    -      -       -      +
    730B  SER*     3.9    18.0    +      -       -      -
    774B  GLN      3.1    11.0    +      -       -      -
    775B  ASP*     3.9     8.1    -      -       -      -
    777B  ASN*     1.3    77.4    -      -       -      +
    779B  GLN*     1.3    64.1    +      -       -      +
    781B  VAL      3.3     0.9    +      -       -      -
    782B  PHE*     3.0    41.7    +      -       +      +
    865B  LEU*     4.0    25.5    -      -       +      +
    870B  ILE*     4.3    12.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 779 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    775B  ASP      3.0    17.9    +      -       -      +
    776B  LYS*     3.6    11.8    -      -       +      +
    778B  THR*     1.3    77.4    -      -       -      +
    780B  GLU*     1.3    63.5    +      -       +      +
    783B  ALA*     3.0    44.8    +      -       +      +
    786B  LYS*     5.0    10.3    -      -       -      +
    865B  LEU*     5.2     7.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 780 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    776B  LYS*     2.9    49.7    +      -       +      +
    777B  ASN*     3.2    16.3    +      -       -      +
    779B  GLN*     1.3    78.2    -      -       +      +
    781B  VAL*     1.3    63.6    +      -       +      +
    784B  GLN*     3.9    18.5    +      -       -      +
   1022B  ALA*     6.0     1.6    -      -       -      +
   1023B  ASN*     4.2    17.7    +      -       -      -
   1026B  ALA*     4.0    13.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 781 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    729B  VAL*     4.0    23.6    -      -       +      -
    777B  ASN      3.1    15.8    +      -       -      +
    778B  THR      4.0     2.2    -      -       -      +
    780B  GLU*     1.3    80.8    -      -       +      +
    782B  PHE*     1.3    83.9    +      -       +      +
    783B  ALA      3.7     0.2    -      -       -      -
    784B  GLN*     3.7    13.3    +      -       -      +
    877B  LEU*     5.6     0.2    -      -       -      +
   1022B  ALA*     3.7    25.8    -      -       +      +
   1025B  ALA*     4.2    17.3    -      -       +      +
   1026B  ALA*     4.2     9.4    -      -       +      +
   1029B  MET*     3.9    27.3    -      -       +      +
   1060B  VAL*     4.9     4.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 782 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    729B  VAL*     4.8    10.8    -      -       +      -
    778B  THR*     3.0    34.6    +      -       +      +
    781B  VAL*     1.3    91.0    -      -       +      +
    783B  ALA*     1.3    56.9    +      -       +      +
    784B  GLN*     3.4     8.6    +      -       -      +
    785B  VAL*     5.1     1.9    +      -       -      +
    865B  LEU*     5.7     1.3    -      -       +      -
    870B  ILE*     3.9    32.5    -      -       +      -
    873B  TYR*     3.6    34.4    -      -       +      +
    874B  THR*     3.9    22.4    -      -       +      -
    877B  LEU*     4.5    12.2    -      -       +      +
   1029B  MET*     4.5     9.6    -      -       +      -
   1055B  SER*     4.4     3.8    -      -       -      -
   1059B  GLY*     3.9    22.9    -      -       -      -
   1060B  VAL*     4.0    25.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 783 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    779B  GLN*     3.0    35.6    +      -       +      +
    781B  VAL      3.7     0.2    -      -       -      -
    782B  PHE*     1.3    76.6    -      -       +      +
    784B  GLN*     1.3    63.6    +      -       -      +
    785B  VAL      3.5     3.8    -      -       -      -
    786B  LYS*     3.8    24.0    -      -       -      +
    865B  LEU*     5.8     2.2    -      -       +      -
    873B  TYR*     3.9    32.5    -      -       +      +
----------------------------------------------------------
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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