Contacts of the helix formed by residues 792 - 807 (chain N) in PDB entry 6AH0


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 LEU 792 (chain N).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    787N  GLU      4.2     2.4    -      -       -      +
    791N  GLY*     1.3    73.8    -      -       -      +
    793N  LYS*     1.3    57.6    +      -       -      +
    794N  ASN*     2.9     8.5    -      -       -      +
    795N  ILE*     3.0    20.0    +      -       -      +
    796N  ALA      3.6     5.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 793 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    787N  GLU      4.8     4.9    -      -       -      -
    788N  TYR*     5.0     9.1    +      -       -      +
    791N  GLY*     3.3     4.4    -      -       -      -
    792N  LEU*     1.3    71.6    -      -       -      +
    794N  ASN*     1.3    63.8    +      -       -      +
    795N  ILE      3.2     0.2    -      -       -      -
    796N  ALA*     3.1    15.6    +      -       -      +
    797N  ASN*     3.2     9.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 794 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    792N  LEU*     2.9     4.7    -      -       -      +
    793N  LYS*     1.3    78.1    -      -       -      +
    795N  ILE*     1.3    59.8    +      -       -      +
    797N  ASN*     3.3    13.2    +      -       -      -
    798N  THR      4.0     1.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 795 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    792N  LEU*     3.0    10.7    +      -       -      +
    794N  ASN*     1.3    71.0    -      -       -      +
    796N  ALA*     1.3    57.7    +      -       -      +
    797N  ASN      2.9     4.9    -      -       -      -
    798N  THR*     2.7    21.6    +      -       -      +
    799N  LEU*     2.9    10.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 796 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    784N  VAL*     5.8     9.9    -      -       -      +
    787N  GLU*     5.7     6.4    +      -       -      +
    792N  LEU      3.6     4.4    +      -       -      -
    793N  LYS*     3.1    15.1    +      -       -      +
    795N  ILE*     1.3    75.3    -      -       -      +
    797N  ASN*     1.3    60.5    +      -       -      +
    798N  THR      3.2     0.2    -      -       -      -
    799N  LEU*     3.9     4.5    -      -       -      +
    800N  MET*     3.3    17.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 797 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    793N  LYS      3.2    10.0    +      -       -      -
    794N  ASN      3.3     7.3    +      -       -      -
    795N  ILE      2.9     1.8    -      -       -      -
    796N  ALA*     1.3    77.9    -      -       -      +
    798N  THR*     1.3    58.8    +      -       -      +
    800N  MET*     3.9     1.0    +      -       -      -
    801N  ALA*     3.3    15.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 798 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    794N  ASN      4.0     3.0    +      -       -      -
    795N  ILE*     2.7    15.2    +      -       -      +
    797N  ASN*     1.3    70.9    -      -       -      +
    799N  LEU*     1.3    58.8    +      -       -      +
    800N  MET      3.2     0.2    -      -       -      -
    801N  ALA*     2.9     3.0    +      -       -      +
    802N  LYS*     2.7    28.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 799 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    784N  VAL*     6.2     2.9    -      -       -      +
    795N  ILE      2.9    12.8    +      -       -      -
    796N  ALA*     4.3     2.9    -      -       -      +
    798N  THR*     1.3    76.7    -      -       -      +
    800N  MET*     1.3    60.0    +      -       -      +
    802N  LYS*     4.1     1.1    -      -       -      +
    803N  ALA*     3.0    21.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 800 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    796N  ALA      3.3    15.7    +      -       -      -
    797N  ASN      4.2     1.3    -      -       -      -
    798N  THR      3.2     0.6    -      -       -      -
    799N  LEU*     1.3    73.5    -      -       -      +
    801N  ALA*     1.3    52.9    +      -       -      +
    803N  ALA*     5.1     0.2    -      -       -      +
    804N  LEU*     2.6    36.6    +      -       -      -
    813N  LEU      6.1     1.3    -      -       -      -
    817N  ALA*     6.5     0.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 801 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    797N  ASN      3.3    12.7    +      -       -      -
    798N  THR*     2.9     8.8    +      -       -      +
    800N  MET*     1.3    76.5    -      -       -      +
    802N  LYS*     1.3    51.3    +      -       -      +
    804N  LEU*     3.6     0.8    -      -       -      +
    805N  GLN*     2.7    33.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 802 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    798N  THR      2.7    17.8    +      -       -      -
    799N  LEU*     4.1     0.9    -      -       -      +
    801N  ALA*     1.3    72.7    -      -       -      +
    803N  ALA*     1.3    62.6    +      -       -      +
    805N  GLN*     3.4     1.3    +      -       -      +
    806N  GLU*     3.4    15.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 803 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    780N  TRP*     6.5     0.7    -      -       -      +
    799N  LEU      3.0    16.7    +      -       -      -
    800N  MET*     3.5     0.7    -      -       -      +
    802N  LYS*     1.3    77.0    -      -       -      +
    804N  LEU*     1.3    61.4    +      -       -      +
    806N  GLU*     3.4     9.6    +      -       -      +
    807N  CYS*     3.4    10.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 804 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    800N  MET      2.6    22.5    +      -       -      -
    801N  ALA      3.6     0.7    -      -       -      -
    803N  ALA*     1.3    71.9    -      -       -      +
    805N  GLN*     1.3    64.2    +      -       -      +
    806N  GLU      3.2     0.2    -      -       -      -
    808N  PRO*     3.3    27.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 805 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    801N  ALA      2.7    20.2    +      -       -      -
    802N  LYS*     3.4     3.1    +      -       -      +
    803N  ALA      3.3     0.2    -      -       -      -
    804N  LEU*     1.3    74.5    -      -       -      +
    806N  GLU*     1.3    62.1    +      -       -      +
    808N  PRO      4.5     1.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 806 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    802N  LYS      3.4     8.8    +      -       -      -
    803N  ALA      3.4     6.7    +      -       -      -
    804N  LEU      3.2     0.6    -      -       -      -
    805N  GLN*     1.3    80.2    -      -       -      +
    807N  CYS*     1.3    62.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 807 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    803N  ALA      3.4    12.6    +      -       -      -
    805N  GLN      3.6     0.2    -      -       -      -
    806N  GLU*     1.3    76.7    -      -       -      +
    808N  PRO*     1.3    60.9    -      -       -      +
    809N  ASN      3.4     5.5    +      -       -      -
    810N  SER      4.7     2.6    +      -       -      +
----------------------------------------------------------
 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