Contacts of the helix formed by residues 724 - 742 (chain A) in PDB entry 1WUG


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 724 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    722A  PRO      2.5     8.4    +      -       -      +
    723A  ARG*     1.3    82.2    +      -       -      +
    725A  PRO*     1.3    71.7    -      -       +      +
    726A  ASP*     3.0     8.8    +      -       +      +
    727A  GLN*     3.6    29.4    -      -       +      +
    728A  LEU*     3.1    19.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 725 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    723A  ARG      3.0     8.7    -      -       -      +
    724A  ASP*     1.3    85.7    -      -       +      +
    726A  ASP*     1.3    62.1    +      -       +      +
    728A  LEU*     4.1     5.4    -      -       +      -
    729A  TYR*     3.6    13.3    +      -       -      +
    783A  VAL*     3.4    37.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 726 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    724A  ASP*     3.0     7.8    -      -       +      +
    725A  PRO*     1.3    84.6    -      -       +      +
    727A  GLN*     1.3    69.9    +      -       +      +
    729A  TYR*     3.4    21.1    -      -       -      +
    730A  SER*     3.9     4.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 727 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    722A  PRO*     4.3     8.7    -      -       +      +
    724A  ASP*     3.2    27.5    +      -       +      +
    726A  ASP*     1.3    82.3    +      -       +      +
    728A  LEU*     1.3    57.3    +      -       -      +
    730A  SER*     3.2    12.5    +      -       -      -
    731A  THR*     2.4    38.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 728 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    722A  PRO*     3.3    35.8    -      -       +      +
    723A  ARG      5.6     0.2    -      -       -      +
    724A  ASP      3.1    13.9    +      -       -      +
    725A  PRO*     4.3     4.7    -      -       +      +
    727A  GLN*     1.3    78.2    -      -       -      +
    729A  TYR*     1.3    67.4    +      -       -      +
    731A  THR*     3.6     6.1    -      -       -      -
    732A  LEU*     2.7    53.7    +      -       +      +
    783A  VAL*     2.9    18.2    -      -       +      +
    784A  SER*     2.9    42.6    -      -       -      +
    785A  LYS*     4.5     1.1    -      -       -      +
    829A  LEU*     3.6    15.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 729 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    725A  PRO      3.6    13.5    +      -       -      +
    726A  ASP*     3.4    16.8    +      -       -      +
    728A  LEU*     1.3    81.0    -      -       -      +
    730A  SER*     1.3    65.6    +      -       -      +
    732A  LEU*     3.9     2.5    -      -       -      +
    733A  LYS*     3.2    30.8    +      -       +      +
    777A  LEU*     3.1    40.3    +      -       +      +
    778A  LYS*     3.5    21.7    +      -       -      -
    780A  ARG*     3.7    31.6    -      -       +      -
    782A  TYR      5.0     8.1    -      -       -      -
    783A  VAL*     5.2     2.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 730 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    726A  ASP      3.9     3.3    +      -       -      -
    727A  GLN*     3.2    14.5    +      -       -      -
    728A  LEU      3.1     0.2    -      -       -      -
    729A  TYR*     1.3    84.5    -      -       -      +
    731A  THR*     1.3    73.4    +      -       -      +
    732A  LEU      3.0     2.0    -      -       -      -
    733A  LYS*     2.8    12.7    +      -       -      +
    734A  SER*     2.7    28.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 731 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    722A  PRO*     5.5     2.4    -      -       +      +
    727A  GLN*     2.4    31.5    +      -       -      +
    728A  LEU*     3.6     9.8    -      -       -      -
    730A  SER*     1.3    79.8    +      -       -      +
    732A  LEU*     1.3    59.8    +      -       -      +
    734A  SER*     3.9     5.7    +      -       -      -
    735A  ILE*     3.0    29.0    +      -       -      +
    823A  LYS*     4.0     2.5    +      -       -      +
    827A  ALA*     3.5    35.2    -      -       +      +
    829A  LEU*     3.9    17.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 732 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    728A  LEU*     2.7    59.9    +      -       +      +
    729A  TYR      3.9     0.2    -      -       -      +
    731A  THR*     1.3    72.5    -      -       -      +
    733A  LYS*     1.3    66.1    +      -       -      +
    735A  ILE*     3.1     7.3    +      -       +      +
    736A  LEU*     3.0    23.6    +      -       -      +
    777A  LEU*     3.4    17.5    -      -       +      -
    782A  TYR      3.3    25.6    -      -       -      +
    784A  SER      5.0     0.4    -      -       -      +
    788A  PHE*     3.3    48.7    -      -       +      -
    789A  MET*     4.6     3.4    -      -       +      -
    829A  LEU*     4.3    15.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 733 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    729A  TYR*     3.2    24.5    +      -       +      +
    730A  SER*     2.8    15.4    +      -       -      +
    732A  LEU*     1.3    80.4    -      -       -      +
    734A  SER*     1.3    67.4    +      -       -      +
    736A  LEU*     3.2     3.9    +      -       -      +
    737A  GLN*     2.8    51.5    +      -       +      +
    777A  LEU*     3.3    23.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 734 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    730A  SER*     2.7    19.1    +      -       -      -
    731A  THR*     4.0     6.3    -      -       -      -
    733A  LYS*     1.3    75.5    -      -       -      +
    735A  ILE*     1.3    58.0    +      -       -      +
    737A  GLN*     3.2     7.8    +      -       -      +
    738A  GLN*     2.8    35.8    +      -       -      +
    823A  LYS*     4.1    14.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 735 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    731A  THR      3.0    19.3    -      -       -      +
    732A  LEU*     3.1    13.0    +      -       +      +
    734A  SER*     1.3    75.6    -      -       -      +
    736A  LEU*     1.3    66.2    +      -       -      +
    738A  GLN*     2.9     4.8    +      -       -      +
    739A  VAL*     2.8    33.7    +      -       +      +
    788A  PHE*     4.3     1.8    -      -       +      -
    789A  MET*     4.8     0.2    -      -       +      -
    792A  LEU*     4.2     4.5    -      -       +      -
    820A  PHE*     3.6    33.9    -      -       +      -
    823A  LYS*     3.2    35.4    -      -       +      +
    824A  ILE*     3.9    10.5    -      -       +      -
    829A  LEU*     3.1    32.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 736 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    732A  LEU      3.0    12.0    +      -       -      +
    733A  LYS*     3.7     5.8    -      -       -      +
    735A  ILE*     1.3    80.5    -      -       -      +
    737A  GLN*     1.3    64.1    +      -       +      +
    739A  VAL*     4.3     3.6    -      -       +      -
    740A  LYS*     3.1    29.9    +      -       +      +
    770A  LEU*     3.0    40.6    -      -       +      +
    773A  MET*     3.3    27.8    -      -       +      -
    774A  SER*     3.8    29.4    -      -       -      +
    777A  LEU*     5.4     1.3    -      -       +      -
    788A  PHE*     3.8    15.9    -      -       +      -
    792A  LEU*     4.0     7.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 737 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    733A  LYS*     2.8    41.8    +      -       +      +
    734A  SER*     3.3     9.4    -      -       -      +
    736A  LEU*     1.3    80.3    -      -       -      +
    738A  GLN*     1.3    63.8    +      -       +      +
    740A  LYS*     3.5    24.7    +      -       -      +
    741A  SER*     3.2    21.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 738 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    734A  SER*     2.8    22.1    +      -       -      +
    735A  ILE*     3.5     5.6    -      -       -      +
    737A  GLN*     1.3    74.1    -      -       +      +
    739A  VAL*     1.3    55.7    +      -       -      +
    741A  SER*     3.0     8.3    +      -       -      -
    742A  HIS*     2.6    35.9    +      -       -      +
    819A  PHE*     3.1    40.1    -      -       +      -
    823A  LYS*     4.0    15.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 739 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    735A  ILE*     2.8    39.7    +      -       +      +
    736A  LEU*     3.9     7.4    -      -       -      +
    738A  GLN*     1.3    72.1    -      -       -      +
    740A  LYS*     1.3    55.6    +      -       -      +
    742A  HIS*     2.9    17.6    -      -       -      +
    745A  ALA*     2.7    26.9    -      -       -      +
    770A  LEU*     4.0    20.2    -      -       +      -
    792A  LEU*     4.4     9.9    -      -       +      -
    796A  PHE*     5.1     0.2    -      -       +      -
    816A  LEU*     3.0    42.8    -      -       +      -
    819A  PHE*     3.9    11.4    -      -       +      -
    820A  PHE*     4.5    10.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 740 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    736A  LEU*     3.1    22.9    +      -       +      +
    737A  GLN*     3.5    26.0    +      -       -      +
    739A  VAL*     1.3    81.4    -      -       -      +
    741A  SER*     1.3    63.0    +      -       -      +
    742A  HIS      3.2     6.1    +      -       -      +
    745A  ALA*     3.4    14.2    -      -       -      +
    746A  TRP      5.3     0.2    +      -       -      -
    749A  MET*     3.2    36.2    -      -       +      +
    770A  LEU*     4.4     2.4    -      -       +      +
    774A  SER*     4.6    18.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 741 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    737A  GLN      3.2     9.1    +      -       -      -
    738A  GLN*     3.0    11.3    +      -       -      -
    740A  LYS*     1.3    77.7    -      -       -      +
    742A  HIS*     1.3    71.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 742 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    738A  GLN*     2.6    17.2    +      -       -      +
    739A  VAL*     2.9    22.5    +      -       -      +
    740A  LYS      3.4     7.4    -      -       -      +
    741A  SER*     1.3    84.6    -      -       -      +
    743A  GLN*     1.3    74.5    +      -       +      +
    744A  SER*     3.4    11.1    +      -       -      +
    745A  ALA*     4.1     2.6    +      -       -      +
    746A  TRP      5.2     0.5    +      -       -      -
    815A  ILE*     3.7    29.2    -      -       +      -
    816A  LEU*     3.7    14.8    -      -       +      +
    819A  PHE*     3.8    43.2    -      +       +      +
----------------------------------------------------------
 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