Contacts of the helix formed by residues 760 - 776 (chain A) in PDB entry 4EZJ


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 760 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    758A  ASP*     4.5     2.9    +      -       -      -
    759A  VAL*     1.3    77.7    -      -       -      +
    761A  SER*     1.3    66.0    +      -       -      +
    762A  GLN*     3.1    24.5    +      -       -      +
    763A  VAL*     3.2    29.4    +      -       -      +
    764A  ILE*     3.3    19.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 761 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    759A  VAL      4.4     0.2    +      -       -      -
    760A  SER*     1.3    74.4    +      -       -      +
    762A  GLN*     1.4    58.7    +      -       -      +
    764A  ILE*     3.6    13.8    +      -       -      +
    765A  SER*     3.1    28.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 762 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    752A  LEU*     5.9     3.3    -      -       -      +
    760A  SER*     3.1    12.1    +      -       -      +
    761A  SER*     1.4    79.1    +      -       -      +
    763A  VAL*     1.3    56.5    +      -       +      +
    765A  SER*     3.3     8.7    +      -       -      +
    766A  GLN*     2.8    49.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 763 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    749A  ILE*     4.1    26.2    -      -       +      +
    752A  LEU*     5.7     4.5    -      -       +      -
    753A  SER*     4.5    22.0    -      -       -      +
    759A  VAL*     6.2     0.4    -      -       +      -
    760A  SER*     3.2    27.2    +      -       -      +
    762A  GLN*     1.3    77.5    -      -       +      +
    764A  ILE*     1.4    53.6    +      -       +      +
    766A  GLN*     3.0     9.1    +      -       +      +
    767A  LEU*     2.7    34.0    +      -       -      +
    803A  VAL*     4.0    26.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 764 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    759A  VAL*     4.1    20.2    -      -       +      -
    760A  SER      3.3    16.5    +      -       -      +
    761A  SER*     3.9    13.2    -      -       -      +
    762A  GLN      3.5     0.2    -      -       -      -
    763A  VAL*     1.4    74.3    -      -       +      +
    765A  SER*     1.4    56.6    +      -       -      +
    767A  LEU*     3.3     7.7    +      -       -      +
    768A  LYS*     3.1    55.9    +      -       -      +
    802A  THR*     3.5    32.8    -      -       -      +
    803A  VAL*     4.7     9.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 765 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    761A  SER      3.1    19.4    +      -       -      -
    762A  GLN*     3.3     9.7    +      -       -      +
    764A  ILE*     1.4    73.2    -      -       -      +
    766A  GLN*     1.3    64.3    +      -       -      +
    768A  LYS*     3.7     6.2    +      -       -      +
    769A  GLN*     3.2    39.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 766 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    749A  ILE*     3.4    21.7    -      -       +      +
    752A  LEU*     6.2     4.5    -      -       +      -
    762A  GLN*     2.8    39.7    +      -       +      +
    763A  VAL*     3.4     9.9    -      -       +      +
    765A  SER*     1.3    72.5    -      -       -      +
    767A  LEU*     1.4    62.8    +      -       -      +
    769A  GLN*     3.6    23.3    +      -       -      +
    770A  LYS*     3.4    31.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 767 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    745A  VAL*     3.8    26.9    -      -       +      -
    749A  ILE*     3.8    10.5    -      -       +      +
    763A  VAL      2.7    15.8    +      -       -      +
    764A  ILE      3.4    10.1    -      -       -      +
    765A  SER      3.2     0.4    -      -       -      -
    766A  GLN*     1.4    69.0    -      -       -      +
    768A  LYS*     1.4    60.5    -      -       -      +
    769A  GLN      3.1     1.8    -      -       -      -
    770A  LYS*     3.0    21.1    +      -       -      +
    771A  LEU*     3.2    38.9    +      -       +      +
    801A  CYS*     4.0     5.4    -      -       +      +
    802A  THR*     3.5    37.7    -      -       -      +
    803A  VAL*     3.9    19.5    -      -       +      -
    811A  LEU*     4.2    14.8    -      -       +      -
    813A  LEU*     5.3     2.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 768 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    764A  ILE*     3.1    36.6    +      -       -      +
    765A  SER*     4.2     5.8    -      -       -      +
    767A  LEU*     1.4    75.8    -      -       +      +
    769A  GLN*     1.4    56.4    +      -       -      +
    771A  LEU*     3.5     5.3    +      -       -      -
    772A  GLU*     3.0    39.0    +      -       -      +
    798A  ILE*     3.4    31.1    -      -       +      +
    799A  GLU*     2.8    32.2    +      -       +      +
    801A  CYS      2.8    30.2    +      -       -      +
    802A  THR*     5.0     1.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 769 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    765A  SER*     3.2    37.3    +      -       -      +
    766A  GLN*     3.6    26.6    +      -       -      +
    768A  LYS*     1.4    74.8    -      -       -      +
    770A  LYS*     1.4    59.6    +      -       +      +
    772A  GLU*     3.2    14.0    +      -       -      +
    773A  ASN*     3.0    40.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 770 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    745A  VAL*     4.1    20.0    -      -       +      -
    748A  ASP*     3.8    36.8    +      -       +      +
    749A  ILE*     3.9    16.6    -      -       +      -
    766A  GLN*     3.4    23.8    +      -       -      +
    767A  LEU      3.0     9.1    +      -       -      +
    769A  GLN*     1.4    77.8    -      -       +      +
    771A  LEU*     1.3    56.1    +      -       -      +
    773A  ASN*     3.5    15.3    +      -       -      +
    774A  LEU*     2.9    30.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 771 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    742A  LEU*     4.8     6.1    -      -       +      -
    745A  VAL*     4.1    18.2    -      -       +      -
    767A  LEU*     3.2    49.5    +      -       +      +
    768A  LYS*     4.0     9.2    -      -       -      +
    770A  LYS*     1.3    73.9    -      -       -      +
    772A  GLU*     1.4    57.4    +      -       -      +
    774A  LEU*     3.4    12.5    -      -       +      +
    775A  GLN*     2.9    35.7    +      -       -      +
    796A  LEU*     4.3    12.7    -      -       +      +
    798A  ILE*     3.7    22.0    -      -       +      +
    801A  CYS*     3.9    23.6    -      -       +      -
    813A  LEU*     4.4    14.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 772 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    768A  LYS*     3.0    24.7    +      -       -      +
    769A  GLN*     3.2    15.3    +      -       -      +
    771A  LEU*     1.4    75.5    -      -       -      +
    773A  ASN*     1.4    63.7    +      -       -      +
    775A  GLN*     4.4     0.7    -      -       -      +
    776A  ASN*     3.3    28.4    +      -       -      +
    798A  ILE*     3.8    28.4    -      -       +      +
    799A  GLU*     4.1    11.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 773 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    769A  GLN*     3.0    26.3    +      -       -      +
    770A  LYS*     3.5    18.1    -      -       -      +
    772A  GLU*     1.4    78.3    -      -       -      +
    774A  LEU*     1.4    57.1    +      -       -      +
    776A  ASN      3.0    18.2    -      -       -      +
    777A  SER      3.1    16.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 774 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    741A  MET*     3.9    43.7    -      -       +      +
    742A  LEU*     4.9     7.6    -      -       +      -
    745A  VAL*     3.7    26.9    -      -       +      -
    770A  LYS      2.9    18.5    +      -       -      +
    771A  LEU*     3.1    17.5    +      -       +      +
    773A  ASN*     1.4    77.2    -      -       -      +
    775A  GLN*     1.3    64.8    +      -       -      +
    776A  ASN      3.3     1.0    +      -       -      -
    777A  SER      4.9     0.9    -      -       -      -
    778A  GLN*     3.4    30.7    +      -       -      +
    779A  LEU*     3.9    16.8    -      -       +      -
    796A  LEU*     5.4     2.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 775 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    771A  LEU      2.9    18.6    +      -       -      +
    772A  GLU      4.4     3.4    -      -       -      +
    774A  LEU*     1.3    72.6    -      -       -      +
    776A  ASN*     1.3    70.2    +      -       -      +
    777A  SER*     4.1     4.2    +      -       -      -
    778A  GLN*     4.5     3.5    -      -       -      +
    779A  LEU*     2.8    39.2    +      -       +      +
    780A  PRO      4.7     0.9    -      -       -      +
    781A  GLU*     5.3     8.7    +      -       -      +
    794A  GLY      4.7     1.2    +      -       -      -
    795A  ALA*     3.5    18.6    -      -       +      +
    796A  LEU*     3.2    39.0    +      -       +      +
    798A  ILE*     4.5    12.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 776 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    772A  GLU      3.3    15.3    +      -       -      +
    773A  ASN*     3.0    14.7    -      -       -      +
    775A  GLN*     1.3    86.7    +      -       -      +
    777A  SER*     1.3    59.7    +      -       -      +
----------------------------------------------------------
 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