Contacts of the helix formed by residues 783 - 792 (chain A) in PDB entry 5HG1


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 GLU 783 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    780A  GLY      4.4     9.2    -      -       -      +
    781A  ILE*     4.0    11.3    -      -       -      +
    782A  PHE*     1.3    77.1    -      -       -      +
    784A  THR*     1.3    61.8    +      -       -      +
    785A  LYS*     3.1    37.0    +      -       +      +
    786A  PHE*     2.9    48.4    +      -       +      +
    787A  LEU*     4.0     1.2    +      -       -      +
    806A  HIS*     4.9     5.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 784 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    747A  GLY      2.6    32.5    +      -       -      +
    748A  MET*     3.5     8.0    +      -       -      +
    750A  LEU*     3.7    11.6    -      -       +      +
    751A  GLY      3.1    18.3    +      -       -      +
    782A  PHE      3.7     0.8    +      -       -      -
    783A  GLU*     1.3    72.4    -      -       -      +
    785A  LYS*     1.3    62.1    +      -       -      +
    787A  LEU*     3.1    27.3    +      -       +      +
    788A  SER*     3.8     4.7    +      -       -      -
    864A  LEU*     4.0    30.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 785 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    783A  GLU*     3.1    31.6    +      -       +      +
    784A  THR*     1.3    77.5    -      -       -      +
    786A  PHE*     1.3    76.7    +      -       +      +
    788A  SER*     3.1    10.5    +      -       -      +
    789A  GLN*     3.1    45.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 786 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    781A  ILE      3.8    12.8    -      -       -      -
    782A  PHE*     3.2    41.7    -      +       +      -
    783A  GLU*     2.9    33.1    +      -       -      +
    785A  LYS*     1.3   100.0    -      -       +      +
    787A  LEU*     1.3    51.2    +      -       -      +
    789A  GLN*     3.7    20.9    -      -       -      -
    790A  ILE*     2.7    46.3    +      -       +      +
    803A  ILE*     3.8    26.9    -      -       +      -
    806A  HIS*     3.9    25.8    -      +       -      -
    807A  LEU*     4.7     3.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 787 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    750A  LEU*     4.4    13.9    -      -       +      -
    751A  GLY*     3.8    21.8    -      -       -      +
    754A  VAL*     3.7    30.3    -      -       +      -
    782A  PHE*     4.1    11.9    -      -       +      -
    784A  THR*     3.1    19.6    +      -       +      +
    786A  PHE*     1.3    77.2    -      -       -      +
    788A  SER*     1.3    61.8    +      -       -      +
    790A  ILE*     4.2     0.5    -      -       -      +
    791A  GLU*     3.1    28.1    +      -       -      +
    823A  CYS*     3.9    36.9    -      -       +      +
    826A  VAL*     4.3    11.0    -      -       +      -
    827A  ALA*     4.3    12.8    -      -       +      -
    864A  LEU*     6.0     0.9    -      -       +      -
    868A  HIS*     4.2    13.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 788 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    784A  THR      4.4     5.0    +      -       -      -
    785A  LYS*     3.1    12.9    +      -       -      -
    787A  LEU*     1.3    76.3    -      -       -      +
    789A  GLN*     1.3    63.3    +      -       -      +
    792A  SER*     2.7    33.5    +      -       -      -
    864A  LEU*     4.4     5.2    -      -       -      +
    867A  LEU*     3.8    23.3    +      -       -      +
    868A  HIS*     3.4    26.5    +      -       -      +
    869A  PRO*     3.8    11.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 789 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    785A  LYS*     3.1    41.6    +      -       +      +
    786A  PHE*     3.7    13.4    -      -       -      +
    788A  SER*     1.3    79.9    -      -       -      +
    790A  ILE*     1.3    61.9    +      -       -      +
    791A  GLU      3.5     0.2    +      -       -      -
    792A  SER*     3.5     7.8    +      -       -      -
    793A  ASP*     3.5    18.2    +      -       -      +
    799A  GLN*     3.9    26.1    +      -       +      +
    803A  ILE*     3.4    26.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 790 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    782A  PHE*     3.7    28.7    -      -       +      -
    786A  PHE*     2.7    26.4    +      -       +      +
    787A  LEU      4.2     1.8    -      -       -      +
    789A  GLN*     1.3    73.2    -      -       -      +
    791A  GLU*     1.3    60.8    +      -       -      +
    793A  ASP*     3.5    14.9    +      -       -      +
    800A  VAL*     3.8    28.7    -      -       +      +
    803A  ILE*     3.7    28.7    -      -       +      -
    804A  LEU*     5.8     0.7    -      -       +      -
    819A  VAL*     4.0    13.2    -      -       +      -
    820A  LYS*     3.6    42.6    -      -       -      +
    823A  CYS*     4.1    12.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 791 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    787A  LEU      3.1    18.2    +      -       -      +
    790A  ILE*     1.3    75.2    -      -       -      +
    792A  SER*     1.3    58.4    +      -       -      +
    793A  ASP      3.2     5.6    +      -       -      +
    820A  LYS*     4.1    17.4    +      -       +      +
    823A  CYS*     3.6    10.3    -      -       +      +
    824A  THR*     3.2    44.5    +      -       -      +
    827A  ALA*     4.1     1.2    -      -       -      +
    868A  HIS*     3.4    22.3    +      -       -      +
    869A  PRO*     4.0     9.1    -      -       +      +
    870A  HIS*     2.9    47.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 792 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    788A  SER*     2.7    22.4    +      -       -      -
    789A  GLN*     4.0     6.3    -      -       -      -
    790A  ILE      3.4     0.6    -      -       -      -
    791A  GLU*     1.3    76.0    -      -       -      +
    793A  ASP*     1.3    58.8    +      -       -      +
    794A  CYS*     4.2     6.8    +      -       -      -
    867A  LEU      5.2     1.0    +      -       -      -
    869A  PRO*     3.4    24.4    -      -       -      +
----------------------------------------------------------
 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