Contacts of the helix formed by residues 725 - 740 (chain F) in PDB entry 4OQB


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 SER 725 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    724F  SER*     1.3    79.6    -      -       -      +
    726F  ASP*     1.3    66.3    +      -       -      +
    727F  SER*     4.0    11.4    -      -       -      -
    728F  GLN*     3.4    13.8    +      -       -      +
    729F  ILE*     3.2    21.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 726 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322D  MET*     5.7     7.4    -      -       +      -
    724F  SER      4.9     2.3    -      -       -      +
    725F  SER*     1.3    73.5    -      -       -      +
    727F  SER*     1.3    53.8    +      -       -      +
    729F  ILE*     3.3    12.5    +      -       -      +
    730F  LEU*     2.6    44.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 727 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    315D  VAL*     3.8    33.0    -      -       -      +
    319D  THR*     4.5     3.6    +      -       -      +
    320D  LYS      5.4     0.5    +      -       -      -
    322D  MET*     5.8     8.9    -      -       -      +
    725F  SER*     3.3     6.8    -      -       -      -
    726F  ASP*     1.3    75.8    -      -       -      +
    728F  GLN*     1.3    59.7    +      -       -      +
    730F  LEU*     3.5     8.7    -      -       -      +
    731F  ASP*     2.9    32.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 728 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    715F  GLU*     5.0     7.3    +      -       -      +
    718F  GLN*     5.0    10.5    -      -       -      +
    719F  ALA*     3.9    16.8    -      -       +      +
    724F  SER*     3.9    21.9    +      -       -      -
    725F  SER*     3.4    22.4    +      -       -      +
    726F  ASP      3.3     0.2    -      -       -      -
    727F  SER*     1.3    80.8    -      -       -      +
    729F  ILE*     1.3    61.3    +      -       -      +
    731F  ASP*     3.6     7.9    +      -       -      +
    732F  LEU*     3.4    33.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 729 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    716F  VAL*     5.4     2.7    -      -       +      -
    719F  ALA*     4.3    23.3    -      -       +      +
    720F  VAL*     4.6    18.8    -      -       +      -
    724F  SER      4.3    10.1    -      -       -      +
    725F  SER      3.2    14.5    +      -       -      +
    726F  ASP*     3.6    13.9    -      -       -      +
    728F  GLN*     1.3    75.1    -      -       -      +
    730F  LEU*     1.3    65.2    +      -       -      +
    732F  LEU*     3.3     8.6    +      -       -      +
    733F  SER*     2.8    32.8    +      -       -      +
    751F  LEU*     4.8     9.0    -      -       +      -
    752F  LEU      3.5    25.8    -      -       -      +
    753F  ASN*     4.6    13.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 730 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319D  THR*     5.2     5.4    -      -       +      -
    322D  MET*     4.5    20.4    -      -       +      -
    562F  ILE*     3.8    25.6    -      -       +      -
    563F  VAL*     4.2    25.1    -      -       +      -
    726F  ASP*     2.6    26.2    +      -       +      +
    727F  SER*     3.2    11.2    +      -       -      +
    729F  ILE*     1.3    72.6    -      -       -      +
    731F  ASP*     1.3    56.3    +      -       -      +
    733F  SER*     3.4     0.9    +      -       -      -
    734F  ASN*     2.9    52.0    +      -       -      +
    751F  LEU*     3.6    26.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 731 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    316D  THR*     3.3    33.2    +      -       +      +
    318D  TRP*     3.6    10.2    -      -       -      +
    319D  THR*     3.3    20.4    -      -       +      +
    727F  SER      2.9    16.1    +      -       -      +
    728F  GLN*     3.7     9.9    -      -       -      +
    730F  LEU*     1.3    76.7    -      -       -      +
    732F  LEU*     1.3    63.2    +      -       -      +
    734F  ASN*     3.3     3.1    +      -       -      +
    735F  ARG*     2.7    55.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 732 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    712F  ILE*     3.2    24.8    -      -       +      +
    715F  GLU*     3.5    64.6    -      -       +      +
    716F  VAL*     3.4    24.0    -      -       +      +
    719F  ALA*     4.3     9.9    -      -       +      -
    728F  GLN*     3.4    24.2    -      -       -      +
    729F  ILE*     3.3     6.8    +      -       -      +
    731F  ASP*     1.3    87.1    -      -       -      +
    733F  SER*     1.3    56.5    +      -       -      +
    735F  ARG*     4.1     5.6    -      -       -      +
    736F  PHE*     2.9    26.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 733 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    562F  ILE*     3.3    24.0    -      -       -      -
    716F  VAL*     4.9     0.4    -      -       -      +
    729F  ILE*     2.8    23.5    +      -       -      +
    730F  LEU      3.7     3.1    -      -       -      -
    732F  LEU*     1.3    75.0    -      -       -      +
    734F  ASN*     1.3    65.9    +      -       -      +
    736F  PHE*     3.9     0.7    -      -       -      +
    737F  TYR*     3.0    33.1    +      -       -      -
    751F  LEU*     4.0     3.5    -      -       -      +
    752F  LEU*     3.1    42.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 734 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    318D  TRP*     4.5    11.9    +      -       +      +
    319D  THR*     3.6    25.3    -      -       +      +
    560F  VAL*     3.2    22.5    -      -       -      +
    561F  ASP*     4.4     6.7    +      -       -      -
    562F  ILE*     2.9    34.1    +      -       -      +
    730F  LEU*     2.9    36.7    +      -       -      +
    731F  ASP*     3.4     7.2    -      -       -      +
    733F  SER*     1.3    76.8    -      -       -      +
    735F  ARG*     1.3    57.6    +      -       -      +
    736F  PHE      3.2     0.2    +      -       -      -
    738F  THR*     2.4    34.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 735 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    318D  TRP*     3.3    61.8    -      -       +      +
    639F  TYR*     5.0     7.1    +      -       -      -
    708F  ALA*     5.4     5.7    -      -       -      +
    712F  ILE*     3.8    32.4    -      -       +      +
    715F  GLU*     5.1     7.3    +      -       -      -
    731F  ASP*     2.7    43.6    +      -       -      +
    732F  LEU*     3.6    11.4    -      -       -      +
    734F  ASN*     1.3    72.7    -      -       -      +
    736F  PHE*     1.3    62.1    +      -       -      +
    738F  THR*     3.5     5.8    +      -       -      -
    739F  LEU*     3.1    33.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 736 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    709F  ALA*     3.6    21.5    -      -       +      -
    712F  ILE*     3.9    13.2    -      -       +      -
    713F  LEU*     3.4    36.6    -      -       +      -
    732F  LEU      2.9    17.9    +      -       -      +
    733F  SER      3.9     3.8    -      -       -      +
    734F  ASN      3.2     0.2    -      -       -      -
    735F  ARG*     1.3    77.5    -      -       -      +
    737F  TYR*     1.3    73.8    +      +       -      +
    739F  LEU*     3.1     3.6    +      -       -      +
    740F  ILE*     2.8    51.0    +      -       +      +
    742F  HIS*     3.6    26.9    -      +       -      -
    752F  LEU*     4.3    13.9    -      -       +      -
    761F  LYS*     4.0    17.7    -      -       +      -
    764F  MET*     4.7     0.2    -      -       -      -
    765F  LEU*     3.9    13.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 737 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    560F  VAL*     3.8    17.7    -      -       +      +
    562F  ILE*     4.0     9.6    -      -       +      -
    567F  ASN*     4.6     8.0    -      -       -      +
    733F  SER*     3.0    28.0    +      -       -      +
    736F  PHE*     1.3    85.9    -      +       -      +
    738F  THR*     1.3    62.7    +      -       -      +
    740F  ILE      2.9    19.2    -      -       -      +
    741F  PRO*     3.9     6.4    -      -       -      +
    742F  HIS*     3.7    32.9    +      +       +      +
    744F  PHE*     3.6    20.9    -      +       +      -
    749F  PRO*     3.7    22.9    -      -       +      -
    750F  PRO*     2.7    35.0    +      -       -      +
    752F  LEU*     3.2    23.2    -      -       +      +
    761F  LYS*     3.4    12.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 738 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    318D  TRP*     3.9    26.6    -      -       +      -
    558F  GLY*     3.3    36.8    -      -       -      +
    559F  LEU*     3.9     9.6    -      -       -      +
    560F  VAL*     2.9    14.6    +      -       +      +
    633F  LYS*     5.4     2.7    -      -       -      +
    639F  TYR*     4.4     7.6    -      -       +      -
    641F  LEU*     3.1    25.0    -      -       -      +
    734F  ASN*     2.4    31.6    +      -       -      +
    735F  ARG*     3.6     5.5    +      -       -      -
    737F  TYR*     1.3    79.8    -      -       -      +
    739F  LEU*     1.3    61.1    +      -       -      +
    740F  ILE      4.4     0.9    -      -       -      -
    741F  PRO*     4.5     1.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 739 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    318D  TRP*     5.2     2.2    -      -       +      -
    639F  TYR*     3.5    31.6    -      -       +      +
    641F  LEU*     3.9     4.0    -      -       -      +
    701F  LEU*     4.3     3.3    -      -       -      +
    705F  GLN*     3.0    60.0    +      -       +      +
    708F  ALA*     3.8    13.5    -      -       +      -
    709F  ALA*     3.4    36.1    -      -       +      +
    712F  ILE*     3.8    10.8    -      -       +      -
    735F  ARG*     3.1    22.2    +      -       -      +
    736F  PHE*     3.6     4.7    -      -       -      +
    738F  THR*     1.3    81.5    -      -       -      +
    740F  ILE*     1.3    62.0    +      -       +      +
    741F  PRO*     3.9     5.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 740 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    691F  ILE*     3.3    34.3    -      -       +      -
    696F  MET*     6.2     0.7    -      -       -      -
    701F  LEU*     4.2    19.3    -      -       +      -
    706F  ILE*     5.5     2.5    -      -       +      -
    709F  ALA*     3.4    32.8    -      -       +      -
    736F  PHE*     2.8    22.1    +      -       +      +
    737F  TYR*     2.9    16.0    -      -       -      +
    739F  LEU*     1.3    79.0    -      -       +      +
    741F  PRO*     1.3    65.1    -      -       +      +
    742F  HIS*     2.8    29.8    +      -       +      -
    764F  MET*     4.9     0.4    -      -       -      -
    765F  LEU*     3.5    28.9    -      -       +      -
    768F  LEU*     6.3     2.0    -      -       +      -
----------------------------------------------------------
 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