Contacts of the helix formed by residues 1166 - 1177 (chain C) in PDB entry 7KHI


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 ASP1166 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1138C  VAL*     3.4    24.1    -      -       +      +
   1164C  PHE*     3.2    20.7    -      -       +      -
   1165C  SER*     1.3    95.9    +      -       -      +
   1167C  GLU*     1.3    68.6    +      -       -      +
   1169C  VAL*     3.1    16.8    -      -       -      +
   1170C  MET*     3.1    16.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU1167 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1164C  PHE*     3.2    18.1    -      -       +      -
   1166C  ASP*     1.3    77.5    -      -       -      +
   1168C  GLU*     1.3    77.6    +      -       +      +
   1170C  MET*     3.0     8.3    +      -       -      +
   1171C  ARG*     2.8    56.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU1168 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5C  TYR*     6.0     1.2    -      -       -      -
      8C  LYS*     4.5    21.3    +      -       +      +
   1163C  THR*     3.6    28.2    -      -       -      +
   1164C  PHE*     4.0    29.7    -      -       +      +
   1167C  GLU*     1.3    87.4    -      -       +      +
   1169C  VAL*     1.3    57.5    +      -       -      +
   1171C  ARG*     3.4    17.9    +      -       -      +
   1172C  LEU*     2.9    28.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL1169 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1138C  VAL*     3.8    12.3    -      -       +      +
   1141C  LEU*     5.3     2.9    -      -       +      -
   1142C  ARG*     3.9    28.3    -      -       +      +
   1145C  ILE*     4.6    15.6    -      -       +      +
   1160C  ASP*     5.6     6.5    -      -       -      +
   1163C  THR*     5.9     0.4    +      -       -      -
   1164C  PHE      4.1     7.7    +      -       -      +
   1165C  SER      3.0    29.4    -      -       -      +
   1166C  ASP*     3.1    13.8    -      -       -      +
   1168C  GLU*     1.3    78.9    -      -       -      +
   1170C  MET*     1.3    65.6    +      -       +      +
   1172C  LEU*     3.2    12.8    +      -       +      +
   1173C  ALA*     2.9    28.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET1170 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1132C  LEU*     5.6     7.5    -      -       +      +
   1137C  GLU      5.3     0.2    -      -       -      -
   1138C  VAL*     3.6    44.0    -      -       +      +
   1141C  LEU*     3.6    26.9    -      -       +      -
   1166C  ASP      3.3    16.4    -      -       -      +
   1167C  GLU*     3.0     5.9    +      -       -      +
   1169C  VAL*     1.3    84.4    -      -       +      +
   1171C  ARG*     1.3    57.1    +      -       -      +
   1173C  ALA*     3.3     4.9    +      -       -      +
   1174C  GLU*     2.9    33.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG1171 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5C  TYR      5.1     0.6    +      -       -      -
      8C  LYS*     5.0     5.8    +      -       -      +
      9C  LYS*     3.3    53.1    -      -       -      +
    775C  GLU*     4.7    18.7    +      -       -      -
   1167C  GLU*     2.8    45.8    +      -       -      +
   1168C  GLU*     3.7    23.6    +      -       -      +
   1169C  VAL      3.3     0.2    -      -       -      -
   1170C  MET*     1.3    76.8    -      -       +      +
   1172C  LEU*     1.3    61.6    +      -       -      +
   1174C  GLU*     3.1     9.1    +      -       +      +
   1175C  ASN*     2.8    34.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1172 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8C  LYS      4.3     8.5    +      -       -      +
      9C  LYS      3.9     8.7    +      -       -      +
     10C  ARG*     3.6    11.9    -      -       -      -
     11C  ILE*     3.4    40.4    -      -       +      +
   1145C  ILE*     4.4    14.6    -      -       +      -
   1149C  TYR*     4.2    22.9    -      -       +      +
   1159C  VAL*     6.4     0.4    -      -       +      -
   1168C  GLU      2.9    14.6    +      -       -      +
   1169C  VAL*     3.2    14.8    +      -       +      +
   1171C  ARG*     1.3    75.8    -      -       -      +
   1173C  ALA*     1.3    58.7    +      -       -      +
   1175C  ASN*     3.3     1.6    +      -       -      -
   1176C  LEU*     2.9    49.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA1173 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1128C  ILE*     4.4    13.7    -      -       +      +
   1132C  LEU*     4.5     9.9    -      -       +      +
   1141C  LEU*     4.3    23.8    -      -       +      -
   1145C  ILE*     4.3    16.3    -      -       +      +
   1169C  VAL      2.9    13.5    +      -       -      +
   1170C  MET*     3.6     9.0    -      -       -      +
   1172C  LEU*     1.3    75.0    -      -       -      +
   1174C  GLU*     1.3    65.6    +      -       -      +
   1176C  LEU*     3.6     4.9    -      -       -      +
   1177C  ARG*     2.9    27.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU1174 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1132C  LEU*     4.1    11.9    -      -       -      +
   1170C  MET*     2.9    19.1    +      -       -      +
   1171C  ARG*     3.1    13.2    +      -       +      +
   1173C  ALA*     1.3    75.5    -      -       -      +
   1175C  ASN*     1.3    63.9    +      -       -      +
   1177C  ARG*     2.9    53.2    +      -       -      +
   1178C  LYS*     5.7     0.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN1175 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9C  LYS*     2.6    37.4    +      -       -      +
     10C  ARG*     3.8    36.6    +      -       +      +
    697C  LYS*     5.1     1.6    -      -       -      -
    791C  LEU*     4.8    11.4    -      -       +      +
   1171C  ARG*     2.8    25.5    +      -       -      +
   1172C  LEU      3.8     2.7    -      -       -      +
   1174C  GLU*     1.3    82.7    -      -       -      +
   1176C  LEU*     1.3    60.8    +      -       -      +
   1177C  ARG      3.5     0.5    +      -       -      -
   1178C  LYS*     4.0    13.7    +      -       -      +
   1179C  GLY      5.3     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1176 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10C  ARG*     3.5    29.8    -      -       +      +
     11C  ILE      4.0     4.9    -      -       -      +
   1125C  GLY*     3.9     6.9    -      -       -      -
   1128C  ILE*     4.8    16.5    -      -       +      +
   1145C  ILE*     5.0     5.6    -      -       +      -
   1149C  TYR*     3.5    25.1    -      -       +      +
   1172C  LEU*     2.9    35.0    +      -       +      +
   1173C  ALA*     3.2     4.9    +      -       -      +
   1175C  ASN*     1.3    74.0    -      -       -      +
   1177C  ARG*     1.3    64.1    +      -       -      +
   1178C  LYS      3.0     3.1    -      -       -      -
   1179C  GLY*     2.9    19.5    +      -       -      +
   1180C  MET*     3.8    22.7    +      -       +      +
   1181C  PRO*     3.6    25.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG1177 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1122C  LYS*     5.2     3.5    +      -       -      -
   1125C  GLY      3.2    24.4    -      -       -      +
   1126C  ASP*     5.0     0.2    -      -       -      -
   1128C  ILE*     4.5     6.3    -      -       +      -
   1129C  ASN*     3.3    42.1    +      -       +      +
   1132C  LEU*     3.9    28.7    -      -       +      +
   1133C  LYS*     5.6     3.6    -      -       -      +
   1173C  ALA      2.9    12.1    +      -       -      +
   1174C  GLU*     2.9    53.1    +      -       -      +
   1176C  LEU*     1.3    77.9    -      -       -      +
   1178C  LYS*     1.3    71.7    +      -       +      +
   1179C  GLY      3.1     2.8    +      -       -      -
----------------------------------------------------------
 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