Contacts of the helix formed by residues 782 - 794 (chain D) in PDB entry 6KQH


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 782 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    684C  PHE*     3.5    36.1    -      -       -      -
    685C  GLU*     4.7     5.2    +      -       -      -
    730D  PRO      5.4     0.9    +      -       -      -
    731D  LEU*     5.4     2.5    -      -       -      -
    733D  CYS*     6.1     0.2    -      -       -      +
    734D  GLU*     5.0    14.5    +      -       -      +
    780D  LYS      3.3     5.9    +      -       -      -
    781D  PRO*     1.3    71.7    -      -       -      +
    783D  ARG*     1.3    65.3    +      -       -      +
    784D  ASP      3.4     0.7    -      -       -      -
    785D  ILE*     3.4    10.8    +      -       -      +
    786D  ILE*     2.7    38.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 783 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    684C  PHE*     5.1     2.0    -      -       +      -
    685C  GLU*     3.5    35.3    +      -       -      +
    874C  LEU*     4.0    12.3    -      -       +      -
    782D  SER*     1.3    80.0    +      -       -      +
    784D  ASP*     1.3    57.9    +      -       -      +
    786D  ILE*     4.3     0.4    -      -       -      +
    787D  LEU*     2.9    26.5    +      -       -      +
   1027D  GLY      4.6     3.8    +      -       -      +
   1028D  ALA*     2.3    66.9    +      -       +      +
   1029D  ARG*     3.4    43.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 784 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    678C  PRO*     3.8    14.7    -      -       -      +
    681C  GLY*     4.6     3.3    +      -       -      -
    683C  ASN*     4.4     2.4    -      -       -      +
    684C  PHE*     3.5    25.2    -      -       +      -
    685C  GLU      4.6     2.3    +      -       -      -
    872C  ASN*     2.7    33.3    +      -       -      -
    874C  LEU*     2.7    21.1    -      -       -      +
    782D  SER*     3.4     1.6    -      -       -      -
    783D  ARG*     1.3    83.9    -      -       -      +
    785D  ILE*     1.3    62.1    +      -       -      +
    787D  LEU*     3.4    10.5    +      -       -      +
    788D  GLY      3.5     8.3    +      -       -      -
    938D  GLY      4.1     0.9    -      -       -      +
    939D  PHE*     3.4    28.1    -      -       +      -
    942D  SER*     3.8    15.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 785 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    730D  PRO*     5.2     2.2    -      -       +      -
    731D  LEU*     3.4    33.7    -      -       +      -
    781D  PRO*     3.7    18.4    -      -       +      -
    782D  SER*     3.4    20.0    +      -       -      +
    783D  ARG      3.3     0.2    -      -       -      -
    784D  ASP*     1.3    75.1    -      -       -      +
    786D  ILE*     1.3    64.0    -      -       -      +
    788D  GLY      3.4     1.9    +      -       -      -
    789D  LEU*     3.2    30.0    +      -       +      +
    931D  LEU      5.6     0.2    -      -       -      +
    934D  LEU      3.4    26.0    -      -       -      +
    935D  LYS*     3.8    26.9    -      -       +      +
    938D  GLY*     3.7     9.4    -      -       -      -
    939D  PHE*     3.7    21.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 786 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    781D  PRO*     3.6    27.4    -      -       +      +
    782D  SER      2.7    31.0    +      -       -      +
    783D  ARG*     3.8     4.5    -      -       -      +
    785D  ILE*     1.3    73.4    -      -       -      +
    787D  LEU*     1.3    61.3    +      -       -      +
    790D  TYR*     2.9    29.8    +      -       -      +
    906D  GLN      4.8     0.2    -      -       -      +
    907D  GLU*     4.1     7.6    -      -       -      -
    908D  LYS*     3.6    37.9    -      -       +      +
    911D  LEU*     4.2    12.1    -      -       +      -
   1026D  SER*     3.4    36.8    -      -       -      +
   1027D  GLY      3.8    11.9    -      -       -      +
   1028D  ALA*     4.3     1.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 787 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    678C  PRO*     4.1    17.9    -      -       +      -
    874C  LEU*     4.2    15.0    -      -       +      -
    783D  ARG      2.9    16.8    +      -       -      +
    784D  ASP*     3.5     6.5    -      -       -      +
    785D  ILE      3.2     0.2    -      -       -      -
    786D  ILE*     1.3    76.3    -      -       -      +
    788D  GLY*     1.3    57.9    +      -       -      +
    790D  TYR*     4.2     4.2    -      -       -      +
    791D  TYR*     3.1    27.7    +      -       -      +
    942D  SER*     4.5     6.7    -      -       -      -
    947D  ILE*     3.7    38.3    -      -       +      +
   1022D  VAL*     4.3    14.9    -      -       +      +
   1023D  MET*     3.3    36.8    -      -       +      -
   1026D  SER*     4.6     1.8    -      -       -      +
   1028D  ALA*     4.1    11.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 788 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    784D  ASP      3.5     4.6    +      -       -      -
    785D  ILE      3.4     4.0    +      -       -      -
    786D  ILE      3.2     0.4    -      -       -      -
    787D  LEU*     1.3    77.2    -      -       -      +
    789D  LEU*     1.3    65.1    +      -       -      +
    791D  TYR*     3.1     3.9    +      -       -      +
    792D  ILE*     3.0    28.8    +      -       -      +
    938D  GLY      3.5    20.4    -      -       -      -
    941D  PHE*     4.2     6.3    -      -       -      -
    942D  SER*     3.6    17.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 789 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    785D  ILE*     3.2    28.1    +      -       +      +
    786D  ILE      4.3     2.0    -      -       -      +
    788D  GLY*     1.3    75.1    -      -       -      +
    790D  TYR*     1.3    52.7    +      -       -      +
    792D  ILE*     3.2    17.0    -      -       +      +
    793D  THR*     2.6    37.9    +      -       -      +
    882D  PHE*     4.0    17.7    -      -       +      -
    885D  ILE*     5.1     2.2    -      -       +      -
    906D  GLN*     4.3     6.5    -      -       +      -
    911D  LEU*     3.8    31.4    -      -       +      -
    934D  LEU*     3.7    31.0    -      -       +      +
    937D  TYR*     4.4    11.7    -      -       +      +
    938D  GLY*     4.0    20.4    -      -       -      +
    941D  PHE*     4.9     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 790 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    786D  ILE      2.9    20.0    +      -       -      +
    787D  LEU      4.2     1.6    -      -       -      +
    789D  LEU*     1.3    76.1    -      -       -      +
    791D  TYR*     1.3    65.0    +      -       -      +
    793D  THR*     3.1     2.9    +      -       -      -
    794D  GLN*     2.9    55.1    +      -       +      +
    905D  PRO*     4.0    22.4    -      -       +      -
    906D  GLN      3.1    26.9    +      -       -      +
    907D  GLU*     4.3     6.1    -      -       +      -
   1016D  PRO      5.1     2.5    +      -       -      -
   1017D  PHE*     5.6     1.3    -      +       -      -
   1021D  TYR*     5.1     5.5    -      -       -      -
   1022D  VAL*     3.6    40.3    -      -       +      -
   1025D  GLN*     3.9    23.0    +      -       +      +
   1026D  SER*     3.7    28.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 791 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    946C  ARG*     3.2    12.6    +      -       -      -
    984C  GLU*     2.7    30.2    +      -       -      +
    787D  LEU      3.1    22.1    +      -       -      +
    788D  GLY*     3.1     6.0    +      -       -      +
    790D  TYR*     1.3    83.4    -      -       +      +
    792D  ILE*     1.3    73.5    +      -       +      +
    794D  GLN*     3.9     6.4    +      -       -      +
    860D  LEU*     6.1     1.3    -      -       +      -
    861D  GLN*     3.3    38.2    +      -       -      +
    941D  PHE      4.5     3.8    -      -       -      -
    944D  THR*     5.8     0.7    -      -       -      -
    945D  SER*     3.0    49.7    +      -       -      -
    947D  ILE*     4.7    14.6    -      -       +      -
   1017D  PHE*     4.9    18.3    -      +       -      -
   1022D  VAL*     5.7     4.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 792 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    788D  GLY      3.0    14.9    +      -       -      +
    789D  LEU*     3.2    25.4    -      -       +      +
    791D  TYR*     1.3    85.9    -      -       +      +
    793D  THR*     1.3    66.9    +      -       +      +
    794D  GLN      3.4     2.9    +      -       -      +
    860D  LEU*     4.0    27.8    -      -       +      +
    861D  GLN*     4.3     6.2    +      -       -      +
    876D  SER*     4.3     0.5    +      -       -      -
    878D  GLY*     3.5    36.1    -      -       -      +
    879D  ARG      4.3     0.2    +      -       -      -
    881D  LEU*     4.3     8.5    -      -       +      -
    882D  PHE*     4.6     7.9    -      -       +      -
    885D  ILE*     4.9     1.1    -      -       +      -
    941D  PHE*     3.5    50.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 793 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    789D  LEU      2.6    23.4    +      -       -      +
    790D  TYR*     3.3     6.2    +      -       -      -
    792D  ILE*     1.3    85.9    -      -       +      +
    794D  GLN*     1.3    61.2    +      -       -      +
    878D  GLY      4.4     3.8    -      -       -      +
    879D  ARG*     2.9    42.7    +      -       +      -
    882D  PHE*     3.9    21.8    -      -       +      -
    904D  VAL      4.7     0.9    -      -       -      -
    905D  PRO*     3.6     6.8    -      -       -      +
    906D  GLN*     2.9    45.0    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 794 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    790D  TYR*     2.9    51.3    +      -       +      +
    791D  TYR*     3.9     2.7    +      -       -      +
    792D  ILE      3.4     3.4    -      -       -      +
    793D  THR*     1.3    82.1    -      -       -      +
    795D  VAL*     1.3    86.1    +      -       -      +
    861D  GLN*     3.6    24.8    -      -       -      +
    876D  SER*     4.6     1.0    +      -       -      -
    905D  PRO*     3.7    23.7    -      -       +      +
   1016D  PRO*     5.6     6.7    +      -       +      +
   1017D  PHE*     3.5    35.4    -      -       +      -
   1021D  TYR*     6.2     1.0    -      -       -      -
----------------------------------------------------------
 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