Contacts of the helix formed by residues 765 - 793 (chain A) in PDB entry 5CGD


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 PRO 765 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    763A  ASN      3.3     8.0    -      -       -      +
    764A  VAL*     1.3    86.9    -      -       +      +
    766A  ALA*     1.3    67.3    +      -       -      +
    767A  ASN      3.6     1.0    +      -       -      -
    768A  PHE*     3.8     2.9    +      -       -      -
    769A  ASN*     3.2    35.8    +      -       -      +
   1096A  ARG*     4.2    26.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 766 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    764A  VAL*     3.4    17.2    +      -       +      -
    765A  PRO*     1.3    80.0    -      -       -      +
    767A  ASN*     1.3    74.2    +      -       -      +
    770A  GLU*     3.0    21.4    +      -       -      +
    771A  ALA*     4.4     1.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 767 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    608A  PRO      5.2     0.7    -      -       -      -
    609A  VAL*     4.0    14.7    +      -       +      +
    612A  SER*     2.5    56.0    +      -       -      +
    613A  SER*     3.5     9.3    -      -       -      +
    765A  PRO      3.6     0.6    +      -       -      -
    766A  ALA*     1.3    79.6    -      -       -      +
    768A  PHE*     1.3    81.3    +      -       +      +
    770A  GLU*     3.1    39.3    +      -       +      +
    821A  LYS*     6.0     2.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 768 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    608A  PRO*     5.4     5.4    -      -       +      -
    609A  VAL*     4.5    33.9    -      -       +      -
    765A  PRO      3.8     3.7    +      -       -      -
    766A  ALA      3.5     0.2    -      -       -      -
    767A  ASN*     1.3    82.1    -      -       -      +
    769A  ASN*     1.3    70.7    +      -       -      +
    770A  GLU      3.4     0.2    +      -       -      -
    773A  TYR*     4.1    10.9    +      -       -      -
    824A  ILE*     4.3    29.4    -      -       +      -
    831A  ARG*     4.2    39.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 769 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    763A  ASN      5.8     1.3    +      -       -      -
    764A  VAL      4.1     3.4    -      -       -      +
    765A  PRO*     3.2    38.4    +      -       -      +
    766A  ALA      3.8     3.4    -      -       -      -
    768A  PHE*     1.3    78.1    -      -       -      +
    770A  GLU*     1.3    64.2    +      -       -      +
    771A  ALA      3.2     3.1    -      -       -      -
    772A  LYS*     3.2    41.9    +      -       +      +
    773A  TYR*     3.2    15.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 770 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    613A  SER*     3.5     6.1    +      -       -      -
    665A  LYS*     2.5    38.9    +      -       -      -
    766A  ALA*     3.0    10.8    +      -       -      +
    767A  ASN*     3.1    44.5    +      -       +      +
    768A  PHE      4.3     0.4    -      -       -      -
    769A  ASN*     1.3    76.0    -      -       -      +
    771A  ALA*     1.3    62.5    +      -       -      +
    773A  TYR*     3.2    22.0    +      -       +      +
    774A  ILE*     3.4    20.6    +      -       +      +
    821A  LYS*     4.3    21.1    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 771 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    758A  ALA*     4.7     1.6    -      -       -      +
    761A  THR*     3.1    34.3    -      -       -      +
    762A  ARG*     4.1     5.4    -      -       -      +
    764A  VAL*     3.6    21.0    +      -       +      +
    766A  ALA      4.4     1.0    +      -       -      +
    769A  ASN      3.2     1.2    -      -       -      -
    770A  GLU*     1.3    76.8    -      -       -      +
    772A  LYS*     1.3    63.5    +      -       -      +
    773A  TYR      3.2     0.2    -      -       -      -
    774A  ILE*     3.5    14.3    +      -       +      +
    775A  ALA*     3.2    23.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 772 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    762A  ARG*     3.8    18.4    +      -       +      +
    764A  VAL      4.8     0.6    +      -       -      +
    769A  ASN*     3.2    40.2    +      -       +      +
    770A  GLU      3.2     1.0    -      -       -      -
    771A  ALA*     1.3    78.5    -      -       -      +
    773A  TYR*     1.3    76.0    +      -       +      +
    775A  ALA*     3.8     5.0    +      -       -      +
    776A  PHE*     3.5    20.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 773 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    768A  PHE      4.1    11.7    -      -       -      -
    769A  ASN*     3.2    29.8    -      -       +      -
    770A  GLU*     3.2    12.2    +      -       +      +
    772A  LYS*     1.3    92.6    +      -       +      +
    774A  ILE*     1.3    63.2    +      -       +      +
    776A  PHE*     3.5     6.5    +      -       -      +
    777A  THR*     3.0    28.1    +      -       -      -
    816A  CYS*     3.3    27.4    -      -       +      +
    817A  MET*     4.7     7.2    -      -       -      +
    820A  PRO*     3.7    29.3    -      -       +      +
    824A  ILE*     5.8     2.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 774 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    662A  LEU*     3.9    32.3    -      -       +      -
    665A  LYS*     3.8    31.2    -      -       +      -
    666A  THR*     4.1    18.8    -      -       +      -
    758A  ALA*     4.5     6.3    -      -       +      -
    770A  GLU*     3.4    27.6    +      -       +      +
    771A  ALA*     3.5    12.3    +      -       +      +
    773A  TYR*     1.3    74.2    -      -       +      +
    775A  ALA*     1.3    65.8    +      -       -      +
    777A  THR*     3.4     6.3    +      -       -      -
    778A  MET*     3.2    24.5    +      -       +      +
    817A  MET*     4.4    15.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 775 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    758A  ALA*     4.0    28.9    -      -       -      +
    762A  ARG*     4.3     9.6    -      -       +      -
    771A  ALA      3.2    15.3    +      -       -      +
    772A  LYS*     4.0     5.4    -      -       -      +
    773A  TYR      3.3     0.2    -      -       -      -
    774A  ILE*     1.3    80.4    -      -       -      +
    776A  PHE*     1.3    60.9    +      -       -      +
    778A  MET*     3.3     2.9    +      -       -      +
    779A  TYR*     3.0    52.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 776 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    772A  LYS      3.5    15.1    +      -       -      +
    773A  TYR*     3.8     6.1    -      -       -      +
    774A  ILE      3.3     0.6    -      -       -      -
    775A  ALA*     1.3    76.1    -      -       -      +
    777A  THR*     1.3    66.5    +      -       -      +
    779A  TYR*     3.3    19.5    +      +       +      +
    780A  THR*     3.1    39.1    +      -       -      -
    816A  CYS*     4.0    27.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 777 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    659A  TYR*     6.3     0.9    -      -       +      -
    773A  TYR      3.0    15.1    +      -       -      -
    774A  ILE      3.6     8.3    -      -       -      -
    775A  ALA      3.3     0.4    -      -       -      -
    776A  PHE*     1.3    80.3    -      -       -      +
    778A  MET*     1.3    62.6    +      -       -      +
    780A  THR*     3.2     4.5    +      -       -      -
    781A  THR*     2.7    44.3    +      -       -      +
    812A  VAL*     4.0    12.7    -      -       +      +
    813A  ALA*     3.8    31.2    -      -       +      -
    816A  CYS*     3.2    18.9    -      -       -      +
    817A  MET*     3.5    18.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 778 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    659A  TYR*     4.7     7.4    -      -       +      -
    662A  LEU*     3.8    25.6    -      -       +      -
    751A  ILE*     3.6    34.5    -      -       +      +
    754A  CYS*     3.5    25.6    -      -       +      -
    755A  THR*     3.3    26.9    -      -       +      +
    758A  ALA*     4.4     6.7    -      -       +      -
    774A  ILE*     3.2    22.1    +      -       +      +
    775A  ALA*     3.3     5.6    +      -       -      +
    777A  THR*     1.3    78.6    -      -       -      +
    779A  TYR*     1.3    64.5    +      -       -      +
    781A  THR*     3.8    13.6    -      -       +      -
    782A  CYS*     3.0    31.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 779 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    755A  THR*     4.3    19.7    -      -       +      -
    758A  ALA*     6.4     0.4    -      -       +      -
    759A  PHE*     3.2    36.8    -      +       +      +
    762A  ARG*     4.2     9.2    -      -       -      -
    775A  ALA*     3.0    42.8    +      -       +      +
    776A  PHE*     3.5    23.1    -      +       +      +
    777A  THR      3.2     0.2    -      -       -      -
    778A  MET*     1.3    79.7    -      -       -      +
    780A  THR*     1.3    62.2    +      -       -      +
    782A  CYS*     3.5     5.1    +      -       -      +
    783A  ILE*     3.2    29.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 780 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    776A  PHE*     3.1    30.7    +      -       -      -
    777A  THR      3.2     7.4    +      -       -      -
    779A  TYR*     1.3    75.6    -      -       -      +
    781A  THR*     1.3    54.7    +      -       -      +
    783A  ILE*     3.0    13.0    +      -       +      +
    784A  ILE*     2.7    59.0    +      -       +      +
    812A  VAL*     4.1    18.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 781 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    659A  TYR*     3.2    37.1    +      -       +      +
    751A  ILE*     4.0    15.0    -      -       +      -
    777A  THR*     2.7    39.9    +      -       -      +
    778A  MET*     3.9    11.9    -      -       +      -
    780A  THR*     1.3    73.3    -      -       -      +
    782A  CYS*     1.3    56.3    +      -       -      +
    784A  ILE*     4.4     8.5    -      -       -      -
    785A  TRP*     2.9    47.4    +      -       +      +
    809A  SER*     4.8     4.9    +      -       -      +
    812A  VAL*     4.5     5.7    -      -       -      +
    813A  ALA*     5.6     0.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 782 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    751A  ILE*     3.7     9.9    -      -       -      -
    752A  LEU*     5.4     3.6    -      -       -      -
    755A  THR*     3.1    37.0    -      -       -      -
    778A  MET      3.0    18.5    +      -       -      +
    779A  TYR*     3.7     6.1    -      -       -      +
    781A  THR*     1.3    76.6    -      -       -      +
    783A  ILE*     1.3    58.1    +      -       +      +
    785A  TRP      3.9     0.2    -      -       -      -
    786A  LEU*     2.9    40.3    +      -       +      +
   4001A  OLA      3.6    28.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 783 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    779A  TYR*     3.2    18.1    +      -       +      +
    780A  THR*     3.0    13.9    +      -       +      +
    782A  CYS*     1.3    75.6    -      -       +      +
    784A  ILE*     1.3    63.1    +      -       +      +
    786A  LEU*     3.3     6.2    +      -       +      +
    787A  ALA*     2.9    35.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 784 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    780A  THR*     2.7    37.6    +      -       +      +
    781A  THR*     3.8     6.5    -      -       -      +
    783A  ILE*     1.3    74.9    -      -       +      +
    785A  TRP*     1.3    63.9    +      -       +      +
    787A  ALA*     3.5     4.6    +      -       -      +
    788A  PHE*     3.0    27.1    +      -       +      +
    805A  SER*     4.7     9.2    -      -       -      +
    808A  LEU*     3.8    35.0    -      -       +      +
    809A  SER*     4.7     6.1    -      -       -      -
    812A  VAL*     3.7    31.2    -      -       +      -
   4005A  51E      4.0    16.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 785 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    655A  PRO*     3.8    13.2    -      -       +      -
    659A  TYR*     3.4    20.2    +      +       -      -
    744A  LEU*     3.5    36.1    -      -       +      +
    747A  ASN*     3.6    35.2    -      -       +      -
    751A  ILE*     3.4    15.9    -      -       +      -
    781A  THR*     2.9    34.9    +      -       +      +
    784A  ILE*     1.3    79.8    -      -       +      +
    786A  LEU*     1.3    66.2    +      -       -      +
    788A  PHE*     3.4    18.8    -      -       -      +
    789A  VAL*     3.6    13.2    -      -       -      +
    809A  SER*     3.0    20.7    +      -       -      -
   4001A  OLA      3.7    26.9    -      -       +      +
   4005A  51E      3.4    45.9    -      +       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 786 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    782A  CYS*     2.9    28.9    +      -       +      +
    783A  ILE*     3.8     6.3    -      -       +      +
    785A  TRP*     1.3    74.6    -      -       -      +
    787A  ALA*     1.3    63.4    +      -       -      +
    788A  PHE      3.3     0.2    +      -       -      -
    789A  VAL*     3.5     8.4    +      -       +      +
    790A  PRO*     3.2    16.3    -      -       -      +
   4001A  OLA      3.7    41.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 787 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    783A  ILE*     2.9    24.0    +      -       +      +
    784A  ILE*     3.9     4.7    -      -       -      +
    786A  LEU*     1.3    74.6    -      -       -      +
    788A  PHE*     1.3    64.3    +      -       -      +
    789A  VAL      3.3     0.2    -      -       -      -
    790A  PRO*     3.2    12.8    -      -       -      +
    791A  ILE*     3.1    35.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 788 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    740A  VAL*     5.2     1.1    -      -       +      -
    744A  LEU*     4.1    19.3    -      -       +      -
    784A  ILE*     3.0    19.5    +      -       +      +
    785A  TRP*     3.4    10.1    -      -       -      +
    786A  LEU      3.1     0.2    -      -       -      -
    787A  ALA*     1.3    78.3    -      -       -      +
    789A  VAL*     1.3    61.9    +      -       +      +
    791A  ILE*     3.2     5.3    +      -       +      -
    792A  TYR*     2.7    74.4    +      +       +      +
    793A  PHE*     5.1     1.6    -      +       -      -
    801A  THR*     4.9     2.0    -      -       +      -
    802A  MET*     3.8    13.0    -      -       +      -
    805A  SER*     3.4    31.6    -      -       -      +
   4005A  51E      3.7    51.6    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 789 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    744A  LEU*     4.2    13.9    -      -       +      -
    785A  TRP      3.6    15.9    -      -       -      +
    786A  LEU*     3.8     6.3    -      -       +      +
    787A  ALA      3.3     0.2    -      -       -      -
    788A  PHE*     1.3    81.0    -      -       +      +
    790A  PRO*     1.3    70.1    -      -       +      +
    793A  PHE*     3.2    45.8    +      -       +      +
   4001A  OLA      3.8    52.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 790 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    786A  LEU      3.2    14.4    -      -       -      +
    787A  ALA*     3.2    17.7    -      -       -      +
    789A  VAL*     1.3    94.3    -      -       +      +
    791A  ILE*     1.3    64.3    +      -       +      +
    793A  PHE*     5.3     0.9    -      -       +      -
    794A  GLY*     3.3    19.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 791 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    787A  ALA*     3.1    31.2    -      -       +      +
    788A  PHE*     3.2     6.8    +      -       +      +
    790A  PRO*     1.3    81.0    -      -       +      +
    792A  TYR*     1.3    65.9    +      -       -      +
    794A  GLY      3.7     1.0    -      -       -      -
    795A  SER*     3.2    25.3    +      -       -      -
    801A  THR*     3.9    20.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 792 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    740A  VAL*     4.3    23.6    -      -       +      +
    788A  PHE*     2.7    54.8    +      +       +      +
    789A  VAL      4.5     0.7    -      -       -      +
    791A  ILE*     1.3    69.3    -      -       -      +
    793A  PHE*     1.3    82.9    +      +       -      +
    794A  GLY      3.0     4.3    -      -       -      -
    795A  SER*     3.0    25.4    +      -       -      -
    798A  LYS*     3.5    72.9    +      -       +      +
    801A  THR*     4.3     9.6    -      -       +      -
    802A  MET*     3.6    22.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 793 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    737A  ASN*     3.7    22.2    -      -       +      -
    740A  VAL*     4.2    17.9    -      -       +      -
    741A  VAL*     3.7    24.0    -      -       +      -
    744A  LEU*     4.4    13.5    -      -       +      -
    788A  PHE*     5.1     1.1    -      +       -      -
    789A  VAL*     3.2    37.0    +      -       +      +
    790A  PRO*     5.0     0.9    -      -       +      +
    792A  TYR*     1.3    98.6    -      +       -      +
    794A  GLY*     1.3    56.9    -      -       -      +
    795A  SER      3.4     0.8    -      -       -      +
    798A  LYS*     4.3    13.5    +      -       -      +
   4001A  OLA      3.4    55.6    -      -       +      +
----------------------------------------------------------
 Back to top of page


A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


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

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

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