Contacts of the helix formed by residues 679 - 705 (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 ASP 679 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    677A  GLU*     3.9     6.1    +      -       -      +
    678A  THR*     1.3    81.2    +      -       -      +
    680A  PRO*     1.3    74.0    -      -       -      +
    681A  LEU*     5.0     2.0    -      -       -      -
    682A  ARG*     3.7    34.7    +      -       +      +
    683A  ARG*     3.0    30.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 680 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    678A  THR      4.0     4.9    -      -       -      +
    679A  ASP*     1.3    93.4    -      -       -      +
    681A  LEU*     1.3    62.1    +      -       +      +
    683A  ARG*     3.1    10.9    +      -       +      +
    684A  GLN*     3.0    28.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 681 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    481A  PHE*     4.0    29.8    -      -       +      +
    525A  ARG*     4.5    16.2    -      -       +      +
    526A  LEU*     5.3     5.2    -      -       +      -
    679A  ASP*     3.6     2.6    -      -       -      +
    680A  PRO*     1.3    81.7    -      -       +      +
    682A  ARG*     1.3    89.5    +      -       +      +
    684A  GLN*     3.2    28.9    -      -       +      +
    685A  VAL*     3.0    37.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 682 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    525A  ARG*     2.3    57.3    +      -       -      +
    527A  MET*     4.9     8.7    -      -       -      +
    677A  GLU*     3.3    29.4    -      -       +      +
    679A  ASP*     3.7    27.5    +      -       +      +
    680A  PRO      3.2     0.6    -      -       -      -
    681A  LEU*     1.3   100.4    -      -       +      +
    683A  ARG*     1.3    62.4    +      -       -      +
    685A  VAL*     3.2    14.4    +      -       +      +
    686A  LEU*     3.0    32.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 683 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    674A  LEU*     3.3    36.4    +      -       +      +
    675A  ALA*     5.2     8.3    +      -       -      +
    677A  GLU*     3.0    39.9    +      -       +      +
    678A  THR*     4.6     4.9    -      -       -      +
    679A  ASP      3.0    23.7    +      -       -      +
    680A  PRO*     3.1     8.9    +      -       +      +
    682A  ARG*     1.3    76.2    -      -       -      +
    684A  GLN*     1.3    56.8    +      -       -      +
    686A  LEU*     4.7     0.2    -      -       -      -
    687A  ASP*     3.0    24.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 684 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    467A  TYR*     4.7    11.7    +      -       -      -
    481A  PHE*     4.9    14.5    -      -       -      -
    526A  LEU*     4.9     2.2    -      -       -      +
    680A  PRO      3.0    16.2    +      -       -      +
    681A  LEU*     3.2    30.9    -      -       +      +
    683A  ARG*     1.3    76.1    -      -       -      +
    685A  VAL*     1.3    80.1    +      -       -      +
    687A  ASP*     3.3    11.0    +      -       +      +
    688A  GLY*     2.9    22.2    +      -       -      -
    691A  LEU*     5.2     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 685 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    467A  TYR*     5.1     3.8    -      -       -      +
    525A  ARG      4.8     0.2    -      -       -      +
    526A  LEU*     4.2    31.0    -      -       +      +
    527A  MET*     3.7    30.1    -      -       +      +
    531A  ASN*     4.6     6.2    +      -       -      +
    681A  LEU*     3.0    32.0    +      -       +      +
    682A  ARG*     3.2    26.4    +      -       -      +
    684A  GLN*     1.3    93.6    -      -       -      +
    686A  LEU*     1.3    63.1    +      -       -      +
    688A  GLY*     3.2     4.0    +      -       -      +
    689A  ARG*     3.0    24.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 686 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    527A  MET*     3.8    33.0    -      -       +      -
    670A  ALA*     5.3     2.9    -      -       -      +
    673A  GLU*     3.3    37.2    -      -       -      +
    674A  LEU*     3.7    39.6    -      -       +      +
    677A  GLU*     4.0    22.9    -      -       +      +
    682A  ARG*     3.0    17.7    +      -       +      +
    685A  VAL*     1.3    73.3    -      -       -      +
    687A  ASP*     1.3    64.8    +      -       -      +
    689A  ARG*     3.3    13.6    +      -       +      +
    690A  GLN*     3.1    24.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 687 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    674A  LEU*     4.0     8.6    -      -       +      +
    683A  ARG      3.0    15.4    +      -       -      +
    684A  GLN*     3.4    15.2    -      -       +      +
    685A  VAL      3.3     0.2    -      -       -      -
    686A  LEU*     1.3    77.2    -      -       -      +
    688A  GLY*     1.3    55.9    +      -       -      +
    690A  GLN*     2.5    38.5    +      -       -      +
    691A  LEU*     2.9    32.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 688 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    466A  GLU*     4.9     2.4    -      -       -      +
    467A  TYR*     5.8     3.4    -      -       -      -
    531A  ASN*     5.5     1.1    -      -       -      -
    684A  GLN      2.9    15.2    +      -       -      -
    685A  VAL*     3.2     6.0    +      -       -      -
    687A  ASP*     1.3    71.5    -      -       -      +
    689A  ARG*     1.3    59.2    +      -       -      +
    691A  LEU*     2.4    51.6    -      -       -      +
    692A  ALA*     3.0     7.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 689 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    527A  MET*     4.9     9.3    -      -       +      +
    530A  VAL*     6.3     0.6    -      -       -      +
    531A  ASN*     3.3    34.8    -      -       +      +
    534A  GLU*     2.4    41.2    +      -       -      +
    666A  ALA      5.6     0.8    +      -       -      -
    669A  ARG*     5.4     6.7    -      -       -      +
    670A  ALA*     3.7    31.8    +      -       +      +
    673A  GLU*     3.4    28.1    +      -       -      +
    685A  VAL      3.0    12.9    +      -       -      +
    686A  LEU*     3.3    15.3    +      -       -      +
    688A  GLY*     1.3    74.9    -      -       -      +
    690A  GLN*     1.3    62.4    +      -       -      +
    692A  ALA*     3.3     8.8    +      -       -      +
    693A  LEU*     3.2    27.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 690 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    667A  ARG*     2.8    57.9    +      -       +      +
    670A  ALA*     4.3    13.2    -      -       +      -
    671A  LYS*     4.2    20.5    +      -       +      +
    674A  LEU*     4.1    13.2    -      -       +      +
    686A  LEU      3.1    16.6    +      -       -      +
    687A  ASP*     2.5    36.9    +      -       -      +
    689A  ARG*     1.3    75.8    -      -       -      +
    691A  LEU*     1.3    63.7    +      -       -      +
    693A  LEU*     3.3     1.6    +      -       -      +
    694A  LYS*     3.0    22.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 691 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    466A  GLU*     3.3    24.7    -      -       -      +
    687A  ASP*     2.9    18.5    +      -       -      +
    688A  GLY*     2.4    56.1    -      -       -      +
    690A  GLN*     1.3    84.0    -      -       -      +
    692A  ALA*     1.3    71.4    +      -       +      +
    694A  LYS*     3.3    10.4    +      -       -      +
    695A  VAL*     2.9    37.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 692 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    466A  GLU*     5.8     0.4    -      -       +      +
    535A  MET*     5.0    13.0    -      -       -      -
    688A  GLY      3.0    12.6    +      -       -      +
    689A  ARG*     3.5    11.9    -      -       -      +
    690A  GLN      3.3     0.2    -      -       -      -
    691A  LEU*     1.3    84.7    -      -       +      +
    693A  LEU*     1.3    58.7    +      -       +      +
    695A  VAL*     3.4     8.5    +      -       -      +
    696A  SER*     3.0    31.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 693 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    534A  GLU*     3.8    24.2    -      -       -      +
    535A  MET*     4.2    25.6    -      -       +      -
    538A  VAL*     4.8     7.6    -      -       +      -
    663A  LEU*     4.4    21.4    -      -       +      +
    666A  ALA*     4.0    18.8    -      -       +      +
    667A  ARG*     3.9    33.7    -      -       +      +
    670A  ALA*     4.2    11.2    -      -       +      -
    689A  ARG*     3.2    19.4    +      -       +      +
    690A  GLN*     3.3     5.4    +      -       -      +
    691A  LEU      3.3     0.2    -      -       -      -
    692A  ALA*     1.3    76.9    -      -       +      +
    694A  LYS*     1.3    62.0    +      -       -      +
    696A  SER*     3.4     4.9    +      -       -      -
    697A  ALA*     3.1    22.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 694 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    605A  SER*     6.0     0.2    -      -       -      +
    667A  ARG*     3.5    44.3    -      -       -      +
    690A  GLN      3.0    11.1    +      -       -      +
    691A  LEU*     3.3     8.5    +      -       +      +
    693A  LEU*     1.3    75.6    -      -       -      +
    695A  VAL*     1.3    64.2    +      -       -      +
    697A  ALA*     3.3     6.2    +      -       -      +
    698A  ASN*     3.0    42.4    +      -       -      +
    101T  TTP      3.2    67.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 695 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    551A  GLN*     4.5    16.6    -      -       -      +
    691A  LEU*     2.9    26.2    +      -       +      +
    692A  ALA*     3.7     8.1    -      -       -      +
    693A  LEU      3.3     0.4    -      -       -      -
    694A  LYS*     1.3    82.6    -      -       -      +
    696A  SER*     1.3    57.4    +      -       -      +
    698A  ASN*     3.4     5.4    +      -       -      +
    699A  SER*     2.9    29.4    +      -       -      -
      0T    A      4.6    21.8    +      -       +      +
    101T  TTP      5.4     6.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 696 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    535A  MET*     3.4    23.2    -      -       -      +
    539A  THR*     5.9     1.3    -      -       -      -
    551A  GLN*     4.8     5.4    +      -       -      -
    554A  LYS*     4.0    11.6    +      -       -      -
    663A  LEU*     4.1    20.9    -      -       -      -
    692A  ALA      3.0    15.3    +      -       -      -
    693A  LEU      3.6     8.5    -      -       -      -
    694A  LYS      3.3     0.2    -      -       -      -
    695A  VAL*     1.3    77.4    -      -       -      +
    697A  ALA*     1.3    62.8    +      -       -      +
    699A  SER*     3.3     6.5    +      -       -      -
    700A  VAL*     3.1    25.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 697 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    608A  PRO*     4.1    15.9    -      -       +      +
    660A  LEU*     3.5    21.8    -      -       +      +
    663A  LEU*     4.0    23.3    -      -       +      +
    664A  LEU*     5.6     2.5    -      -       +      +
    693A  LEU      3.1    15.4    +      -       -      +
    694A  LYS*     3.3     7.2    +      -       -      +
    696A  SER*     1.3    75.7    -      -       -      +
    698A  ASN*     1.3    62.8    +      -       -      +
    700A  VAL*     3.4    16.2    -      -       -      +
    701A  TYR*     3.9     3.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 698 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    607A  TYR*     4.7     1.2    -      -       -      +
    608A  PRO*     3.5    25.6    -      -       -      +
    694A  LYS*     3.0    34.3    +      -       -      +
    695A  VAL*     4.0     5.1    -      -       -      +
    697A  ALA*     1.3    74.4    -      -       -      +
    699A  SER*     1.3    62.2    +      -       -      +
    700A  VAL      3.2     0.7    -      -       -      -
    701A  TYR*     3.2    14.2    +      -       +      +
    702A  GLY      3.0    20.3    +      -       -      -
      0T    A      3.8     6.5    -      -       -      +
    101T  TTP      3.6    68.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 699 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    551A  GLN*     3.5    33.4    +      -       -      +
    555A  VAL*     5.4     2.8    -      -       -      +
    695A  VAL*     2.9    18.8    +      -       -      -
    696A  SER*     3.8     7.0    -      -       -      -
    698A  ASN*     1.3    72.7    -      -       -      +
    700A  VAL*     1.3    60.8    +      -       -      +
    702A  GLY      3.7     0.7    -      -       -      -
    703A  PHE*     3.0    27.4    +      -       -      +
      0T    A      3.8    36.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 700 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    555A  VAL*     4.2    29.3    -      -       +      +
    558A  GLN*     4.8     5.4    -      -       -      +
    611A  MET*     5.6     2.2    -      -       -      +
    656A  LEU*     4.9    21.5    -      -       +      +
    659A  ILE*     5.0     8.1    -      -       +      -
    660A  LEU*     3.8    24.9    -      -       +      -
    663A  LEU*     4.1    20.2    -      -       +      -
    696A  SER      3.1    15.8    +      -       -      +
    697A  ALA      3.4    10.5    -      -       -      +
    698A  ASN      3.2     0.4    -      -       -      -
    699A  SER*     1.3    75.7    -      -       -      +
    701A  TYR*     1.3    62.0    +      -       -      +
    703A  PHE*     3.4    16.5    -      -       -      +
    704A  THR*     4.1     5.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 701 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    581A  TYR*     3.3    19.7    +      -       -      -
    607A  TYR*     3.5    42.3    -      +       +      -
    608A  PRO*     5.8     2.0    -      -       +      -
    611A  MET*     4.3    22.7    -      -       +      -
    660A  LEU*     5.5     1.3    -      -       +      +
    697A  ALA      3.9     3.2    +      -       -      +
    698A  ASN*     3.2    15.8    +      -       -      +
    700A  VAL*     1.3    78.6    -      -       -      +
    702A  GLY*     1.3    73.2    +      -       -      +
    704A  THR*     3.2    21.1    +      -       -      -
    705A  GLY      4.1     2.1    +      -       -      -
    716A  ILE*     5.9     0.9    -      -       +      -
    717A  SER*     4.4    14.3    +      -       -      -
    720A  VAL*     3.7    38.1    -      -       +      -
    721A  THR*     3.7    10.7    -      -       -      +
      0T    A      5.2     0.7    -      +       -      -
      1T    G      5.0    13.9    +      -       -      +
    101T  TTP      3.8    16.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 702 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    698A  ASN      3.0    11.3    +      -       -      -
    699A  SER      3.4     1.3    +      -       -      -
    700A  VAL      3.4     0.4    -      -       -      -
    701A  TYR*     1.3    82.9    -      -       -      +
    703A  PHE*     1.3    64.4    +      -       -      +
    704A  THR      3.2     0.4    -      -       -      -
    705A  GLY*     3.7     8.7    +      -       -      -
    706A  ALA*     3.8     8.0    +      -       -      +
      0T    A      3.5    41.2    -      -       -      +
      1T    G      4.2    10.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 703 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    551A  GLN      5.6     0.4    -      -       -      -
    552A  GLN*     4.0    31.9    -      -       +      -
    555A  VAL*     3.9    34.1    -      -       +      -
    556A  VAL*     4.4    19.1    -      -       +      -
    559A  LEU*     5.4     8.1    -      -       +      -
    618A  TYR*     3.9    26.0    -      +       -      -
    699A  SER      3.0    12.9    +      -       -      +
    700A  VAL*     3.4    14.6    -      -       -      +
    701A  TYR      3.1     0.4    -      -       -      -
    702A  GLY*     1.3    77.7    -      -       -      +
    704A  THR*     1.3    62.9    +      -       -      +
    705A  GLY      3.5     0.2    +      -       -      -
    706A  ALA*     3.6    15.6    +      -       +      +
    709A  GLY*     5.7     0.4    -      -       -      -
    710A  LYS*     4.5    13.2    -      -       +      -
    711A  LEU*     4.1    30.9    -      -       +      +
    712A  PRO*     4.8     0.5    -      -       -      +
      0T    A      5.1     4.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 704 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    611A  MET*     5.5     1.8    -      -       -      +
    618A  TYR*     4.2    19.4    +      -       -      -
    656A  LEU*     4.7    11.4    -      -       -      +
    700A  VAL      4.3     5.7    +      -       -      -
    701A  TYR*     3.2    15.0    +      -       -      -
    703A  PHE*     1.3    79.8    -      -       -      +
    705A  GLY*     1.3    57.6    +      -       -      +
    712A  PRO*     3.3    10.4    -      -       -      +
    713A  CYS*     3.0    55.6    +      -       +      +
    714A  LEU      4.2     0.2    +      -       -      -
    716A  ILE*     3.7    24.7    -      -       +      +
    717A  SER*     3.3    13.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 705 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    581A  TYR*     5.0     8.3    -      -       -      -
    701A  TYR      4.1     2.4    +      -       -      -
    702A  GLY*     3.7     6.9    +      -       -      -
    703A  PHE      3.4     0.4    -      -       -      -
    704A  THR*     1.3    78.2    -      -       -      +
    706A  ALA*     1.3    58.0    +      -       -      +
    707A  GLN*     3.2    10.7    +      -       -      +
    712A  PRO*     5.0     0.2    -      -       -      -
    714A  LEU*     3.5    23.9    -      -       -      +
    717A  SER*     3.5    18.1    +      -       -      -
      1T    G      4.6    15.2    -      -       -      +
      2T    C      5.5     1.0    +      -       -      -
----------------------------------------------------------
 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