Contacts of the helix formed by residues 481 - 495 (chain D) in PDB entry 4QY2


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 481 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    479D  THR      3.2     6.1    +      -       -      +
    480D  TYR*     1.3    73.2    -      -       -      +
    482D  HIS*     1.3    68.4    +      -       -      +
    483D  SER*     2.8    28.5    +      -       -      -
    484D  GLN*     3.3    33.9    +      -       +      +
    485D  TYR*     3.6    12.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 482 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    464B  TYR*     5.5     0.2    +      -       -      -
    448D  GLN      3.9    18.7    +      -       -      +
    449D  LEU      4.5     0.2    -      -       -      +
    450D  ARG*     3.1    60.4    +      -       +      +
    452D  ASN*     2.9    34.7    +      -       -      +
    480D  TYR*     3.6     8.6    +      -       +      -
    481D  ASP*     1.3    78.2    +      -       -      +
    483D  SER*     1.3    80.1    +      -       -      +
    484D  GLN      3.3     0.3    +      -       -      -
    485D  TYR      3.3     0.3    +      -       -      -
    486D  ARG*     3.1    33.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 483 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    481D  ASP*     2.8    25.9    +      -       -      -
    482D  HIS*     1.3    97.8    -      -       -      +
    484D  GLN*     1.3    62.4    +      -       -      +
    486D  ARG*     3.8     7.3    +      -       -      +
    487D  GLU*     3.3    18.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 484 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    481D  ASP*     3.3    27.9    +      -       -      +
    482D  HIS      3.2     0.2    -      -       -      -
    483D  SER*     1.3    81.8    +      -       -      +
    485D  TYR*     1.3    93.6    +      -       +      +
    486D  ARG      3.6     0.2    -      -       -      -
    487D  GLU*     3.6    11.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 485 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    452D  ASN*     3.8     5.8    -      -       -      +
    465D  HIS*     3.2    45.9    -      +       +      +
    466D  ALA      4.1     7.0    -      -       -      -
    468D  ASP*     5.4     0.7    +      -       -      -
    471D  CYS*     4.0    19.1    -      -       +      +
    474D  SER*     5.6     0.6    +      -       -      -
    480D  TYR*     3.6    29.2    -      +       -      -
    481D  ASP      3.6    19.7    -      -       -      -
    482D  HIS      3.3     1.8    +      -       -      -
    484D  GLN*     1.3   109.1    +      -       +      +
    486D  ARG*     1.3    59.6    +      -       -      +
    487D  GLU*     3.3     2.9    +      -       -      -
    488D  GLU*     3.5    15.8    +      -       -      +
    489D  ALA*     2.9    27.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 486 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    454B  GLU*     2.7    43.0    +      -       -      -
    464B  TYR*     3.6    12.8    +      -       -      -
    493B  ARG*     3.1    25.8    +      -       -      +
    495B  ASN*     6.2     1.6    -      -       -      +
    450D  ARG*     4.0     2.0    -      -       -      +
    451D  GLN*     3.8    15.1    -      -       -      +
    452D  ASN*     3.4    16.8    -      -       -      +
    482D  HIS*     3.1    37.4    +      -       +      +
    483D  SER*     4.1     7.6    -      -       -      +
    485D  TYR*     1.3    77.9    -      -       -      +
    487D  GLU*     1.3    63.0    +      -       -      +
    489D  ALA      3.1     0.2    +      -       -      -
    490D  LEU*     2.7    58.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 487 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    495B  ASN*     6.1     3.4    -      -       -      +
    483D  SER      3.3    23.4    -      -       -      +
    484D  GLN      3.6    10.6    -      -       -      +
    485D  TYR      3.8     0.2    -      -       -      -
    486D  ARG*     1.3    79.1    +      -       +      +
    488D  GLU*     1.3    64.6    +      -       -      +
    490D  LEU*     3.4     6.1    +      -       -      +
    491D  LEU*     3.0    23.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 488 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    465D  HIS*     3.7    14.5    -      -       +      +
    466D  ALA*     3.4    25.4    +      -       -      +
    485D  TYR*     3.5    16.1    +      -       -      +
    487D  GLU*     1.3    78.0    +      -       -      +
    489D  ALA*     1.3    57.5    +      -       -      +
    491D  LEU*     3.2    10.7    -      -       +      +
    492D  ASN*     3.0    41.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 489 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    451D  GLN      4.5     0.4    -      -       -      +
    452D  ASN*     3.6    42.0    -      -       +      +
    464D  TYR*     3.4    18.1    -      -       -      +
    465D  HIS*     4.3     2.9    -      -       +      -
    485D  TYR      2.9    19.1    +      -       -      +
    486D  ARG      3.5     3.1    -      -       -      +
    488D  GLU*     1.3    75.5    -      -       -      +
    490D  LEU*     1.3    66.6    +      -       -      +
    492D  ASN      3.2     1.2    +      -       -      -
    493D  ARG*     3.0    28.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 490 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    493B  ARG      3.5    24.9    -      -       -      +
    494B  LEU*     4.4    18.8    -      -       +      +
    495B  ASN*     6.3     0.2    -      -       +      -
    451D  GLN*     3.9    32.1    -      -       +      +
    486D  ARG*     2.7    43.8    +      -       +      +
    487D  GLU*     3.9     5.6    -      -       -      +
    489D  ALA*     1.3    71.6    -      -       -      +
    491D  LEU*     1.3    57.8    +      -       -      +
    493D  ARG*     4.2    12.1    -      -       -      +
    494D  LEU*     2.9    52.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 491 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    487D  GLU      3.0    15.2    +      -       -      +
    488D  GLU*     3.2    14.1    -      -       +      +
    490D  LEU*     1.3    76.7    -      -       -      +
    492D  ASN*     1.3    71.2    +      -       -      +
    494D  LEU*     5.4     0.2    -      -       -      -
    495D  ASN*     3.0    28.1    +      -       -      -
    496D  ILE      3.2    27.4    -      -       -      +
    497D  ASN*     4.7    12.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 492 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    464D  TYR*     2.5    48.5    +      -       +      +
    465D  HIS*     4.2     2.4    -      -       -      +
    488D  GLU*     3.0    31.1    +      -       -      +
    489D  ALA      3.2     0.4    +      -       -      +
    491D  LEU*     1.3    91.6    -      -       -      +
    493D  ARG*     1.3    61.9    +      -       -      +
    495D  ASN*     3.9    10.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 493 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    450D  ARG      5.2     0.2    +      -       -      -
    451D  GLN*     2.9    56.2    +      -       -      +
    453D  ALA      4.6     4.7    +      -       -      +
    454D  GLU*     2.5    42.8    +      -       -      +
    464D  TYR*     3.2    40.7    -      -       +      -
    489D  ALA      3.0    16.1    +      -       -      +
    490D  LEU*     3.9    11.8    -      -       +      +
    492D  ASN*     1.3    77.7    -      -       -      +
    494D  LEU*     1.3    76.4    +      -       +      +
    495D  ASN*     4.5     2.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 494 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    494B  LEU*     3.5    40.4    -      -       +      -
    490D  LEU*     2.9    32.2    +      -       +      +
    491D  LEU*     4.8     0.4    -      -       -      +
    493D  ARG*     1.3    89.0    -      -       +      +
    495D  ASN*     1.3    71.1    +      -       -      +
    496D  ILE*     3.1    30.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 495 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    491D  LEU*     3.0    17.7    +      -       -      -
    492D  ASN      4.4     9.1    +      -       -      +
    493D  ARG      3.4     3.3    -      -       -      +
    494D  LEU*     1.3    79.2    -      -       -      +
    496D  ILE*     1.3    63.1    +      -       -      +
----------------------------------------------------------
 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