Contacts of the helix formed by residues 558 - 566 (chain A) in PDB entry 2OR4


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 THR 558 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148A  PRO*     4.3     7.4    -      -       +      -
    151A  TYR*     3.9    20.4    -      -       +      -
    242A  TYR*     3.0    23.3    +      -       -      +
    383A  PHE*     4.0    16.8    -      -       +      -
    385A  GLY*     3.8     7.8    -      -       -      -
    555A  VAL      3.6    18.6    -      -       -      +
    556A  TYR      2.9     9.5    +      -       -      +
    557A  GLU*     1.3    79.6    -      -       -      +
    559A  TYR*     1.3    67.4    +      -       -      +
    560A  GLU*     3.4    11.6    +      -       -      -
    561A  LEU*     3.1    23.7    +      -       -      +
    562A  VAL*     3.3    10.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 559 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  LYS*     3.2    39.5    +      -       -      +
     74A  LEU*     4.0    12.8    -      -       +      -
     75A  TYR*     3.6    55.7    -      +       +      +
     78A  THR*     3.4    24.0    +      -       -      +
     79A  GLN*     4.3     6.3    -      -       -      +
    151A  TYR*     4.6     2.5    +      -       -      +
    385A  GLY*     4.2     6.1    -      -       -      -
    558A  THR*     1.3    72.7    -      -       -      +
    560A  GLU*     1.3    79.7    +      -       +      +
    562A  VAL*     3.0     8.0    +      -       -      +
    563A  GLU*     2.9    44.6    +      -       +      +
    570A  PHE*     4.3    13.7    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 560 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75A  TYR*     5.1     5.7    -      -       -      -
     79A  GLN*     5.3     1.6    +      -       -      +
    151A  TYR*     2.7    40.2    +      -       -      -
    242A  TYR*     3.4    15.3    +      -       -      +
    558A  THR*     3.1     4.9    +      -       -      -
    559A  TYR*     1.3    95.1    -      -       +      +
    561A  LEU*     1.3    65.7    +      -       -      +
    563A  GLU*     4.5     4.9    -      -       -      +
    564A  LYS*     2.9    53.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 561 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242A  TYR*     3.7    11.7    +      -       +      -
    246A  TRP*     3.7    13.7    -      -       +      -
    386A  ILE*     3.9    25.4    -      -       +      -
    551A  LEU*     3.7    39.3    -      -       +      -
    556A  TYR      3.9     4.7    -      -       -      +
    557A  GLU*     4.0    19.3    -      -       +      -
    558A  THR*     3.1    21.8    +      -       -      +
    560A  GLU*     1.3    76.1    -      -       -      +
    562A  VAL*     1.3    59.2    +      -       -      +
    565A  PHE*     3.0    37.4    +      -       +      +
    566A  TYR*     3.4    28.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 562 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  LEU*     3.9    15.5    -      -       +      -
    385A  GLY      3.4    25.8    -      -       -      +
    386A  ILE*     3.5    25.6    -      -       +      -
    390A  SER*     5.5     0.4    -      -       -      -
    456A  ILE*     3.8     9.6    -      -       +      -
    558A  THR      3.3     8.3    +      -       -      +
    559A  TYR      3.0     7.6    +      -       -      +
    561A  LEU*     1.3    75.6    -      -       +      +
    563A  GLU*     1.3    62.2    +      -       -      +
    566A  TYR*     3.0    12.4    +      -       +      -
    567A  ASP*     2.9    31.7    +      -       +      -
    570A  PHE*     4.0     7.9    -      -       +      -
    573A  HIS*     3.6    30.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 563 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71A  LYS*     4.2    16.5    +      -       -      -
    559A  TYR*     2.9    50.4    +      -       +      +
    560A  GLU*     4.4     3.6    -      -       -      +
    562A  VAL*     1.3    76.1    -      -       -      +
    564A  LYS*     1.3    77.5    +      -       -      +
    568A  PRO*     3.2    36.1    -      -       -      +
    570A  PHE*     4.3    14.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 564 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242A  TYR*     5.5     1.3    -      -       +      +
    243A  PRO      4.9     4.5    -      -       -      +
    560A  GLU*     2.9    42.9    +      -       +      +
    563A  GLU*     1.3    95.1    +      -       -      +
    565A  PHE*     1.3    92.4    +      -       +      +
    568A  PRO*     4.7     9.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 565 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    242A  TYR*     4.0     8.7    -      +       -      -
    243A  PRO      3.5    19.3    -      -       -      -
    244A  ASP*     3.5    29.4    -      -       -      -
    245A  GLY*     3.6    27.4    -      -       -      -
    246A  TRP*     4.0    22.2    -      +       +      -
    561A  LEU*     3.0    25.4    +      -       +      +
    564A  LYS*     1.3   104.7    -      -       +      +
    566A  TYR*     1.3    62.3    +      -       -      +
    568A  PRO*     5.1     1.8    -      -       -      -
   1760A  NAG      3.1    27.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 566 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246A  TRP*     3.8    17.8    +      -       +      +
    386A  ILE*     4.0    16.2    -      -       +      -
    456A  ILE*     3.4    31.9    -      -       +      -
    457A  GLU      3.7     7.8    +      -       -      -
    458A  GLY*     3.7    32.5    -      -       -      -
    459A  ASN*     3.3    28.8    +      -       -      +
    549A  TYR*     3.7    23.6    -      -       -      +
    550A  PRO*     4.3     1.6    -      -       -      +
    551A  LEU*     5.5     0.9    +      -       -      +
    561A  LEU*     3.6    40.6    -      -       +      +
    562A  VAL*     3.0     9.2    +      -       -      +
    565A  PHE*     1.3    79.1    -      -       -      +
    567A  ASP*     1.3    62.0    +      -       -      +
    568A  PRO*     3.8     4.9    -      -       -      +
    572A  TYR*     4.0     3.8    -      -       -      -
   1760A  NAG      3.4    30.0    -      -       +      +
----------------------------------------------------------
 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