Contacts of the helix formed by residues 167 - 184 (chain E) in PDB entry 3O2Q


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 ASP 167 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123D  VAL*     3.2    26.5    -      -       +      +
    124D  ASN*     5.4     3.3    -      -       -      +
    127D  LYS*     4.2     6.8    +      -       -      -
    176D  ASN*     2.7    28.8    +      -       -      +
    165E  THR*     3.2     2.9    -      -       -      -
    166E  GLU*     1.3    82.1    -      -       +      +
    168E  MET*     1.3    64.6    +      -       -      +
    169E  GLU*     3.3     5.5    +      -       -      -
    170E  ASN*     3.0    24.6    +      -       +      +
    171E  GLU*     3.0    33.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 168 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4E  SER*     4.7    12.4    +      -       -      +
      6E  LEU*     3.9    23.6    -      -       +      -
    106E  ASP*     4.2    25.1    -      -       +      +
    107E  LEU*     5.7     3.1    -      -       +      -
    135E  HIS*     4.5    17.7    -      -       -      +
    162E  ILE*     3.4    32.1    -      -       +      +
    165E  THR*     3.6    12.2    +      -       -      +
    166E  GLU      4.0     0.8    +      -       -      -
    167E  ASP*     1.3    71.4    +      -       -      +
    169E  GLU*     1.3    70.9    +      -       +      +
    171E  GLU      3.1     0.7    +      -       -      -
    172E  ILE*     2.9    45.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 169 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127D  LYS*     2.8    35.4    +      -       -      +
    177D  ASP*     3.8    15.8    -      -       -      +
    178D  GLY*     3.8    18.0    -      -       -      -
    181D  THR*     4.6     7.6    +      -       -      +
    182D  HIS*     3.0    24.6    +      -       -      -
    251D  ILE*     5.5     1.7    -      -       -      +
    133E  PRO*     3.6    17.4    -      -       -      +
    135E  HIS*     3.0    33.8    +      -       +      +
    167E  ASP*     3.3     2.6    +      -       -      -
    168E  MET*     1.3    89.7    -      -       +      +
    170E  ASN*     1.3    60.6    +      -       -      +
    171E  GLU      3.5     0.3    +      -       -      -
    172E  ILE*     4.0    15.3    -      -       -      +
    173E  ASP*     4.9     2.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 170 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175D  ASP      3.9     6.6    +      -       -      +
    176D  ASN*     3.5    18.2    +      -       -      +
    177D  ASP*     2.8    40.3    -      -       -      +
    178D  GLY      4.7     0.4    -      -       -      +
    180D  ARG*     5.0     1.2    -      -       -      +
    167E  ASP*     3.0    29.6    +      -       +      +
    169E  GLU*     1.3    79.7    -      -       -      +
    171E  GLU*     1.3    64.8    +      -       +      +
    173E  ASP*     5.4     0.9    +      -       -      +
    174E  GLU*     5.6     1.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 171 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165E  THR*     3.6    16.4    -      -       +      +
    166E  GLU*     3.4    14.7    +      -       -      +
    167E  ASP*     3.0    39.4    +      -       +      +
    168E  MET      3.1     1.6    +      -       -      -
    170E  ASN*     1.3    91.7    -      -       +      +
    172E  ILE*     1.3    67.4    +      -       -      +
    173E  ASP      3.3     2.5    -      -       -      -
    174E  GLU*     2.9    23.8    +      -       +      +
    175E  LEU*     3.1    19.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 172 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251D  ILE*     5.7     0.2    -      -       +      -
    107E  LEU*     4.4    10.3    -      -       +      -
    135E  HIS*     4.1    15.9    -      -       +      +
    137E  VAL*     4.3    13.9    -      -       +      -
    162E  ILE*     4.0    28.7    -      -       +      -
    168E  MET*     2.9    32.8    +      -       +      +
    169E  GLU*     4.0    11.7    -      -       -      +
    170E  ASN      3.8     0.2    -      -       -      -
    171E  GLU*     1.3    75.8    -      -       -      +
    173E  ASP*     1.3    61.6    +      -       -      +
    175E  LEU*     3.1    12.1    +      -       -      +
    176E  LEU*     2.8    37.7    +      -       +      +
    189E  HIS*     3.6    32.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 173 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177D  ASP*     4.3     9.2    -      -       -      +
    249D  SER*     5.9     1.4    -      -       -      -
    250D  SER*     4.4    10.2    -      -       -      -
    251D  ILE*     3.7    13.9    +      -       -      +
    293D  GLN*     3.9    24.7    +      -       -      +
    169E  GLU      4.9     2.3    +      -       -      +
    170E  ASN      5.4     1.3    +      -       -      +
    171E  GLU      3.3     0.8    -      -       -      -
    172E  ILE*     1.3    81.5    -      -       -      +
    174E  GLU*     1.3    57.6    +      -       -      +
    176E  LEU*     3.2     8.0    +      -       -      +
    177E  GLN*     2.9    33.6    +      -       -      +
    189E  HIS*     2.6    39.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 174 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170E  ASN      5.6     1.1    +      -       -      +
    171E  GLU*     2.9    16.6    +      -       +      +
    173E  ASP*     1.3    78.5    -      -       -      +
    175E  LEU*     1.3    64.0    +      -       +      +
    177E  GLN*     3.4     8.2    +      -       +      +
    178E  GLU*     3.0    33.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 175 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158E  LEU*     5.5     3.1    -      -       +      -
    161E  CYS*     4.1    28.4    -      -       -      +
    162E  ILE*     4.3    16.4    -      -       +      -
    165E  THR*     2.9    38.6    -      -       +      +
    171E  GLU*     3.1    24.8    +      -       +      +
    172E  ILE*     3.6     7.6    -      -       -      +
    174E  GLU*     1.3    82.8    -      -       +      +
    176E  LEU*     1.3    66.3    +      -       +      +
    178E  GLU*     3.4    22.5    +      -       -      +
    179E  PHE*     3.0    27.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 176 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137E  VAL*     4.2    21.3    -      -       +      -
    158E  LEU*     3.9    33.7    -      -       +      -
    162E  ILE*     5.2     1.3    -      -       +      -
    172E  ILE*     2.8    30.1    +      -       +      +
    173E  ASP*     3.6     6.3    -      -       -      +
    175E  LEU*     1.3    71.6    -      -       +      +
    177E  GLN*     1.3    61.3    +      -       -      +
    179E  PHE*     3.2     4.4    +      -       +      +
    180E  GLU*     2.8    35.7    +      -       +      +
    187E  PHE*     4.1    22.5    -      -       +      +
    189E  HIS*     3.6    44.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 177 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290D  ALA*     3.1    35.1    -      -       +      +
    292D  SER*     3.7     8.0    +      -       -      -
    293D  GLN*     4.2    14.4    +      -       -      +
    173E  ASP      2.9    21.6    +      -       -      +
    174E  GLU*     3.6     8.7    -      -       +      +
    175E  LEU      3.2     0.2    -      -       -      -
    176E  LEU*     1.3    77.5    -      -       -      +
    178E  GLU*     1.3    61.9    +      -       -      +
    180E  GLU*     3.2    25.8    +      -       -      +
    181E  GLU*     3.0    25.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 178 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    161E  CYS*     5.5     2.1    -      -       -      -
    174E  GLU*     3.0    23.5    +      -       +      +
    175E  LEU*     3.7    25.5    -      -       -      +
    177E  GLN*     1.3    75.7    -      -       -      +
    179E  PHE*     1.3    58.5    +      -       +      +
    181E  GLU*     3.4     9.1    +      -       -      +
    182E  LYS*     3.1    54.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 179 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154E  LEU*     3.8    33.7    -      -       +      -
    157E  GLU*     3.7    42.6    -      -       +      -
    158E  LEU*     3.8    30.1    -      -       +      -
    161E  CYS*     4.9    11.9    -      -       +      -
    175E  LEU      3.0    17.9    +      -       -      +
    176E  LEU*     3.5     6.5    -      -       -      +
    178E  GLU*     1.3    77.4    -      -       +      +
    180E  GLU*     1.3    61.8    +      -       -      +
    182E  LYS*     4.0     6.8    -      -       +      +
    183E  SER*     2.8    37.1    +      -       -      -
    187E  PHE*     3.5    31.6    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 180 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290D  ALA*     5.6     0.2    -      -       -      +
    291D  LYS*     5.9     1.0    -      -       -      +
    292D  SER*     2.6    35.1    +      -       -      -
    176E  LEU*     2.8    16.7    +      -       -      +
    177E  GLN*     3.4    24.7    +      -       -      +
    179E  PHE*     1.3    71.8    -      -       -      +
    181E  GLU*     1.3    58.6    +      -       -      +
    184E  GLY*     2.8    33.4    +      -       -      -
    185E  ARG      3.1    22.1    +      -       -      +
    186E  THR*     3.8     7.0    -      -       -      -
    187E  PHE*     2.7    42.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 181 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177E  GLN      3.0    12.9    +      -       -      +
    178E  GLU*     3.7    13.1    -      -       -      +
    180E  GLU*     1.3    78.9    -      -       -      +
    182E  LYS*     1.3    79.5    +      -       -      +
    184E  GLY*     4.1     4.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 182 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178E  GLU*     3.1    44.8    +      -       +      +
    179E  PHE*     4.0     9.2    -      -       +      +
    180E  GLU      3.3     0.2    -      -       -      -
    181E  GLU*     1.3    93.8    +      -       -      +
    183E  SER*     1.3    61.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 183 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154E  LEU*     5.1     8.5    -      -       -      -
    179E  PHE*     2.8    32.4    +      -       -      -
    182E  LYS*     1.3    78.1    -      -       -      +
    184E  GLY*     1.3    62.4    +      -       -      +
    185E  ARG*     3.0    39.5    +      -       -      +
    187E  PHE*     4.0     6.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 184 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180E  GLU      2.8    12.9    +      -       -      -
    181E  GLU      4.1     3.8    +      -       -      -
    182E  LYS      3.5     2.4    -      -       -      -
    183E  SER*     1.3    76.0    -      -       -      +
    185E  ARG*     1.3    60.6    +      -       -      +
    186E  THR*     5.1     3.3    -      -       -      +
----------------------------------------------------------
 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