Contacts of the helix formed by residues 891 - 900 (chain G) in PDB entry 1WQ1


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 MET 891 (chain G).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    784G  ALA*     4.1    33.2    -      -       +      +
    787G  LEU*     3.9    28.7    -      -       +      -
    881G  VAL*     4.4    19.5    -      -       +      +
    885G  TRP*     4.6    11.4    -      -       +      -
    888G  ASN*     3.2    38.6    +      -       +      +
    889G  THR      3.4     1.0    -      -       -      -
    890G  THR*     1.3    82.9    -      -       +      +
    892G  ARG*     1.3    62.1    +      -       -      +
    893G  THR      3.0     0.9    -      -       -      -
    894G  ARG*     4.3    27.8    -      -       +      -
    895G  VAL*     3.0    37.9    +      -       +      +
     32R  TYR*     6.1     3.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 892 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    878G  GLN*     3.1    36.5    +      -       +      +
    881G  VAL*     3.9    19.2    -      -       +      +
    882G  GLN*     4.4    23.8    -      -       +      +
    888G  ASN      5.0     1.2    +      -       -      +
    889G  THR*     2.7    50.8    +      -       -      +
    890G  THR*     3.3     2.8    +      -       -      +
    891G  MET*     1.3    76.2    -      -       -      +
    893G  THR*     1.3    77.2    +      -       -      +
    895G  VAL*     3.7     1.3    -      -       -      +
    896G  VAL*     3.6     6.2    -      -       -      +
    968G  ILE*     3.7    23.0    -      -       -      +
    972G  ASP*     2.8    32.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 893 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    890G  THR*     2.8    19.4    +      -       -      -
    892G  ARG*     1.3   100.0    +      -       -      +
    894G  ARG*     1.3    64.4    +      -       -      +
    895G  VAL      3.2     1.3    -      -       -      -
    896G  VAL*     3.0     7.7    +      -       -      +
    897G  SER*     3.0    20.3    +      -       -      -
    943G  LEU*     4.9    12.3    -      -       -      +
    968G  ILE*     4.0    27.0    -      -       +      +
    971G  LEU*     3.9    27.3    -      -       +      +
    972G  ASP*     3.7    19.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 894 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    784G  ALA*     6.3     0.2    -      -       -      +
    785G  THR*     4.1    13.3    -      -       -      +
    888G  ASN*     5.8     0.8    -      -       -      +
    890G  THR*     3.9    35.1    +      -       -      +
    891G  MET*     3.8    29.0    -      -       +      +
    893G  THR*     1.3    80.6    +      -       -      +
    895G  VAL*     1.3    57.6    +      -       -      +
    897G  SER*     2.8    26.0    +      -       -      -
    898G  GLY*     2.9    14.0    +      -       -      -
    941G  ALA      5.3     0.4    -      -       -      -
    942G  ASN*     4.7    20.5    +      -       -      +
    943G  LEU*     6.0     3.3    -      -       +      +
    971G  LEU*     5.0     0.4    -      -       -      +
     31R  GLU*     5.3     4.6    -      -       -      +
     32R  TYR*     2.9    71.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 895 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    778G  ILE*     4.9     0.2    -      -       +      -
    787G  LEU*     3.9    17.9    -      -       +      -
    788G  PHE*     4.4    14.1    -      -       +      -
    877G  LEU*     3.9    25.6    -      -       +      +
    878G  GLN*     4.6     0.4    -      -       +      -
    881G  VAL*     3.8    28.9    -      -       +      -
    891G  MET*     3.0    27.6    +      -       +      +
    892G  ARG*     3.7    14.6    -      -       -      +
    894G  ARG*     1.3    76.7    -      -       -      +
    896G  VAL*     1.3    66.4    +      -       +      +
    898G  GLY*     4.1     3.4    +      -       -      -
    899G  PHE*     3.3    23.4    -      -       -      -
     32R  TYR*     5.6     2.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 896 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    874G  TYR*     4.2    36.1    -      -       +      +
    877G  LEU*     5.2     3.1    -      -       +      -
    878G  GLN*     3.6    26.0    -      -       +      +
    892G  ARG      3.6    20.4    -      -       -      +
    893G  THR      3.0     6.3    +      -       -      +
    895G  VAL*     1.3    78.7    -      -       +      +
    897G  SER*     1.3    67.2    +      -       -      +
    898G  GLY      3.2     1.3    -      -       -      -
    899G  PHE*     3.0     8.1    +      -       -      +
    900G  VAL*     3.0    36.7    +      -       +      +
    971G  LEU*     3.9    20.4    -      -       +      +
    974G  LEU*     4.5     6.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 897 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    893G  THR      3.0    11.6    +      -       -      -
    894G  ARG*     2.8    13.1    +      -       -      -
    896G  VAL*     1.3    76.4    -      -       -      +
    898G  GLY*     1.3    57.2    +      -       -      +
    899G  PHE      3.0     1.4    +      -       -      -
    900G  VAL*     3.9     2.2    -      -       -      -
    901G  PHE*     2.9    27.0    +      -       -      +
    902G  LEU*     3.2     6.6    +      -       -      -
    938G  GLN*     4.6     0.5    +      -       -      -
    941G  ALA*     2.7    41.6    +      -       -      +
    942G  ASN*     3.9     8.8    +      -       -      -
    971G  LEU*     3.8    20.6    -      -       -      +
     32R  TYR*     6.0     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 898 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    788G  PHE*     5.4     2.4    -      -       -      +
    894G  ARG      2.9    12.8    +      -       -      -
    895G  VAL      4.1     3.1    -      -       -      -
    896G  VAL      3.2     0.6    -      -       -      -
    897G  SER*     1.3    77.3    -      -       -      +
    899G  PHE*     1.3    59.4    -      -       -      +
    902G  LEU*     3.2    30.7    -      -       -      +
    903G  ARG*     3.2    18.8    +      -       -      +
    938G  GLN*     5.9     0.7    -      -       -      -
    942G  ASN*     6.0     0.4    -      -       -      -
     32R  TYR*     4.1    18.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 899 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    774G  ASN*     4.9     0.4    -      -       -      -
    788G  PHE*     3.6    47.6    -      +       +      -
    795G  SER*     4.6     5.8    -      -       -      -
    798G  MET*     3.3    45.8    -      -       +      -
    802G  MET*     3.9    11.8    -      -       +      +
    874G  TYR*     4.2    14.8    -      -       +      -
    877G  LEU*     3.5    27.6    -      -       +      -
    895G  VAL      3.3    20.2    -      -       -      -
    896G  VAL*     3.0     6.7    +      -       -      +
    898G  GLY*     1.3    80.1    -      -       -      +
    900G  VAL*     1.3    64.7    +      -       -      +
    901G  PHE      3.3     1.6    -      -       -      -
    903G  ARG*     3.1    29.6    +      -       -      +
    904G  LEU*     3.0    23.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 900 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    809G  PHE*     4.5    14.1    -      -       +      -
    866G  LEU*     5.2     2.5    -      -       +      -
    874G  TYR*     3.9    19.7    -      -       +      +
    896G  VAL*     3.0    30.5    +      -       +      +
    899G  PHE*     1.3    77.9    -      -       -      +
    901G  PHE*     1.3    78.4    +      -       +      +
    904G  LEU*     3.2     9.6    -      -       +      +
    905G  ILE*     2.9    41.8    +      -       +      +
    970G  PHE*     4.5     8.7    -      -       +      -
    971G  LEU*     3.9     8.3    -      -       +      -
    974G  LEU*     4.0    22.4    -      -       +      -
----------------------------------------------------------
 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