Contacts of the helix formed by residues 158 - 174 (chain A) in PDB entry 3E0D


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 ARG 158 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153A  PHE*     3.1    21.6    +      -       +      +
    156A  GLN*     3.1    21.5    -      -       +      +
    157A  ASP*     1.3    79.2    -      -       -      +
    159A  LEU*     1.3    63.3    +      -       -      +
    160A  ASP*     3.2    34.2    +      -       -      +
    161A  LEU*     3.2    52.4    +      -       +      +
    162A  ALA      3.2     9.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 159 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154A  ILE*     4.3    24.7    -      -       +      +
    157A  ASP*     3.3    12.0    +      -       -      +
    158A  ARG*     1.3    73.6    -      -       -      +
    160A  ASP*     1.3    56.6    +      -       -      +
    162A  ALA*     3.6     6.2    -      -       -      +
    163A  GLU*     3.0    32.9    +      -       -      +
    191A  LYS*     6.4     0.4    -      -       -      -
    195A  VAL*     3.9    34.5    -      -       +      -
    199A  PHE*     4.1     6.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 160 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158A  ARG*     3.3    44.1    +      -       -      -
    159A  LEU*     1.3    75.9    +      -       -      +
    161A  LEU*     1.3    68.5    +      -       -      +
    163A  GLU*     4.2     4.4    -      -       -      +
    164A  ALA*     3.1    28.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 161 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153A  PHE*     3.5    40.1    -      -       +      -
    156A  GLN*     5.8     0.4    -      -       -      +
    158A  ARG*     3.2    53.5    +      -       +      +
    160A  ASP*     1.3    86.1    +      -       -      +
    162A  ALA*     1.3    55.7    +      -       -      +
    164A  ALA*     3.4     7.1    +      -       +      +
    165A  ARG*     2.7    37.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 162 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150A  ILE*     3.9    19.7    -      -       +      +
    153A  PHE*     3.5    29.3    -      -       +      +
    154A  ILE*     4.0    15.5    -      -       +      -
    158A  ARG      3.2     6.1    +      -       -      +
    159A  LEU*     3.3     9.4    +      -       -      +
    161A  LEU*     1.3    75.7    -      -       -      +
    163A  GLU*     1.3    53.8    +      -       -      +
    165A  ARG*     3.3     3.0    +      -       -      +
    166A  LEU*     2.8    33.3    +      -       -      +
    199A  PHE*     4.1    10.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 163 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    159A  LEU      3.0    16.5    +      -       -      +
    160A  ASP*     4.2     5.2    -      -       -      +
    162A  ALA*     1.3    72.5    -      -       -      +
    164A  ALA*     1.3    60.3    +      -       -      +
    166A  LEU*     3.1     6.0    +      -       +      +
    167A  ASN*     2.8    36.8    +      -       -      +
    199A  PHE*     3.7    30.2    -      -       +      -
    202A  LYS*     2.7    30.3    +      -       -      -
    203A  TYR*     2.5    36.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 164 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160A  ASP      3.1    20.4    +      -       -      +
    161A  LEU*     3.5     8.7    -      -       +      +
    163A  GLU*     1.3    77.2    -      -       -      +
    165A  ARG*     1.3    58.5    +      -       -      +
    167A  ASN*     3.5    11.4    +      -       -      +
    168A  GLU*     3.0    25.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 165 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77A  ALA*     4.0     6.1    +      -       -      +
     78A  GLU*     4.8     4.8    +      -       -      -
     94A  PHE*     5.7     2.8    -      -       -      -
    129A  ARG*     3.3    37.3    -      -       -      +
    149A  GLU*     2.7    33.1    +      -       +      +
    150A  ILE*     4.3    14.1    -      -       +      -
    153A  PHE*     4.0    30.4    -      -       +      -
    161A  LEU*     2.7    23.9    +      -       -      +
    162A  ALA      3.7     4.7    -      -       -      +
    164A  ALA*     1.3    71.4    -      -       -      +
    166A  LEU*     1.3    65.4    +      -       -      +
    168A  GLU*     3.2    25.2    +      -       -      +
    169A  ASP*     3.0    31.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 166 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150A  ILE*     3.8    15.2    -      -       +      +
    162A  ALA      2.8    18.6    +      -       -      +
    163A  GLU*     3.1     9.6    +      -       +      +
    165A  ARG*     1.3    73.6    -      -       -      +
    167A  ASN*     1.3    56.0    +      -       -      +
    169A  ASP*     3.4     2.6    +      -       -      +
    170A  LEU*     3.0    38.1    +      -       +      +
    177A  PHE*     3.7    29.2    -      -       +      -
    179A  ILE*     4.0     6.5    -      -       +      -
    199A  PHE*     3.8    28.9    -      -       +      -
    203A  TYR*     3.6    38.8    -      -       +      -
    205A  LEU*     3.7    17.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 167 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163A  GLU*     2.8    24.7    +      -       -      +
    164A  ALA*     3.6    10.7    -      -       -      +
    166A  LEU*     1.3    72.8    -      -       -      +
    168A  GLU*     1.3    65.2    -      -       -      +
    170A  LEU*     3.1     9.8    +      -       -      +
    171A  SER*     2.9    24.5    +      -       -      -
    203A  TYR*     3.2    42.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 168 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129A  ARG*     3.1    47.0    +      -       -      +
    133A  ARG*     4.0     9.6    +      -       -      +
    164A  ALA      3.0    14.8    +      -       -      +
    165A  ARG*     3.2    31.0    +      -       -      +
    167A  ASN*     1.3    74.5    -      -       -      +
    169A  ASP*     1.3    62.6    +      -       -      +
    171A  SER*     3.2    20.8    +      -       -      -
    172A  ILE*     3.3    17.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 169 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96A  LEU*     5.1     6.6    -      -       -      +
    129A  ARG*     4.8     6.7    -      -       -      +
    132A  LEU*     4.7     6.4    -      -       -      +
    149A  GLU*     4.5     9.8    -      -       -      +
    150A  ILE*     4.6     4.2    -      -       -      +
    165A  ARG*     3.0    32.1    +      -       -      +
    166A  LEU*     3.8     4.0    -      -       -      +
    168A  GLU*     1.3    72.8    -      -       -      +
    170A  LEU*     1.3    60.4    +      -       -      +
    172A  ILE*     3.0    13.8    +      -       -      +
    173A  PHE*     2.9    49.3    +      -       -      +
    177A  PHE*     3.7    36.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 170 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166A  LEU*     3.0    37.0    +      -       +      +
    167A  ASN*     3.1    13.9    +      -       -      +
    169A  ASP*     1.3    75.8    -      -       -      +
    171A  SER*     1.3    57.9    +      -       -      +
    174A  GLY*     3.0    47.0    +      -       -      +
    177A  PHE*     4.3    10.1    -      -       +      -
    203A  TYR*     3.9    31.0    -      -       +      -
    205A  LEU*     3.7    32.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 171 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133A  ARG*     2.9    30.2    +      -       -      -
    167A  ASN      2.9    12.9    +      -       -      -
    168A  GLU*     3.2    13.5    -      -       -      -
    169A  ASP      3.2     0.2    -      -       -      -
    170A  LEU*     1.3    77.1    -      -       -      +
    172A  ILE*     1.3    56.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 172 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129A  ARG*     3.8    35.2    -      -       +      +
    132A  LEU*     4.5     3.1    -      -       +      -
    133A  ARG*     3.4    45.5    -      -       +      +
    136A  ALA*     3.8    27.5    -      -       +      +
    168A  GLU*     3.3    15.7    +      -       -      +
    169A  ASP*     3.0    21.3    +      -       -      +
    171A  SER*     1.3    80.4    -      -       -      +
    173A  PHE*     1.3    81.8    +      -       +      +
    174A  GLY      3.7     0.4    -      -       -      -
    176A  ARG*     4.8     1.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 173 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96A  LEU*     4.8     1.6    -      -       +      -
     98A  LEU*     4.0     4.5    -      -       +      -
    132A  LEU*     3.7    37.7    -      -       +      -
    136A  ALA*     4.1    12.6    -      -       +      -
    139A  LEU*     3.6    39.3    -      -       +      -
    141A  ALA*     3.7    31.9    -      -       +      -
    169A  ASP*     2.9    28.1    +      -       -      +
    172A  ILE*     1.3    91.5    -      -       +      +
    174A  GLY*     1.3    64.0    +      -       -      +
    175A  ASP*     3.4     1.0    +      -       -      +
    176A  ARG*     3.1    40.9    +      -       -      +
    177A  PHE*     4.1    21.5    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 174 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170A  LEU*     3.0    31.3    +      -       -      +
    171A  SER      4.9     0.2    -      -       -      -
    172A  ILE      3.7     1.6    -      -       -      -
    173A  PHE*     1.3    77.4    -      -       -      +
    175A  ASP*     1.3    58.0    +      -       -      -
    176A  ARG      3.1     3.5    +      -       -      -
    177A  PHE*     3.6    14.9    +      -       -      +
    205A  LEU*     5.9     0.2    -      -       -      +
----------------------------------------------------------
 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