Contacts of the helix formed by residues 183 - 195 (chain D) in PDB entry 3O9Z


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 GLY 183 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178D  LEU      3.2     0.4    +      -       -      -
    179D  ALA      2.2    27.6    +      -       -      -
    182D  ILE*     1.3    75.4    -      -       -      +
    184D  ILE*     1.3    62.3    +      -       -      -
    186D  PHE*     2.8    19.9    +      -       -      +
    187D  PHE*     3.1    17.6    +      -       -      -
    225D  LEU*     3.3    25.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 184 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101D  LYS*     3.3    40.4    -      -       +      -
    102D  PRO*     4.1    26.9    -      -       +      -
    179D  ALA      3.1     1.4    +      -       -      -
    180D  THR*     3.1    22.3    +      -       +      +
    182D  ILE      2.7     8.8    +      -       -      +
    183D  GLY*     1.3    72.0    -      -       -      +
    185D  HIS*     1.3    63.4    +      -       -      +
    187D  PHE*     3.8     6.5    -      -       +      -
    188D  ASP*     2.9    25.8    +      -       +      +
    285D  ALA*     3.6    37.7    -      -       +      +
    286D  ILE*     4.2     7.9    -      -       +      +
    289D  ALA*     3.7    17.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 185 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101D  LYS*     3.5    29.5    -      -       +      +
    128D  LEU*     6.5     0.7    -      -       -      -
    129D  GLN*     4.2    15.8    +      -       -      -
    130D  LEU*     3.7    23.8    -      -       +      +
    182D  ILE      3.6    20.0    -      -       -      +
    184D  ILE*     1.3    77.8    -      -       -      +
    186D  PHE*     1.3    70.3    +      +       +      +
    188D  ASP*     3.7     5.7    +      -       -      +
    189D  LEU*     3.0    24.8    +      -       -      +
    260D  PHE*     4.0    11.7    -      +       +      -
    311D  NAD      3.7    17.2    +      -       -      -
    312D  AKG      2.5    46.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 186 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130D  LEU*     3.7    23.6    -      -       +      -
    154D  LEU*     4.1    23.8    -      -       +      -
    156D  TYR*     3.4    45.1    -      +       +      -
    182D  ILE      5.1     2.2    -      -       -      -
    183D  GLY*     2.8    14.8    +      -       -      +
    185D  HIS*     1.3    84.4    -      -       +      +
    187D  PHE*     1.3    62.9    +      -       +      +
    188D  ASP      3.2     0.2    -      -       -      -
    189D  LEU*     3.1     4.1    +      -       +      +
    190D  LEU*     2.8    35.6    +      -       -      +
    225D  LEU*     4.8     5.6    -      -       +      -
    245D  ARG*     3.0    34.3    -      -       +      -
    246D  SER      5.7     0.2    -      -       -      -
    247D  ILE*     4.1    28.7    -      -       +      -
    256D  PHE*     4.4     8.1    -      +       +      -
    260D  PHE*     4.6     7.9    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 187 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    154D  LEU*     6.2     2.0    -      -       +      -
    179D  ALA*     3.8     6.3    -      -       +      -
    183D  GLY*     3.1    43.4    +      -       -      -
    184D  ILE*     4.1     6.7    -      -       -      +
    186D  PHE*     1.3    77.1    -      -       +      +
    188D  ASP*     1.3    57.3    +      -       -      +
    190D  LEU*     3.8    11.6    -      -       +      +
    191D  ALA*     3.0    29.1    +      -       -      +
    214D  LEU*     4.1    23.8    -      -       +      -
    223D  TRP*     3.9    39.5    -      +       +      -
    225D  LEU*     3.8     8.1    -      -       +      -
    285D  ALA*     3.8    15.8    -      -       +      +
    288D  VAL*     4.5    15.3    -      -       +      +
    289D  ALA*     5.3     4.5    -      -       +      -
    292D  LEU*     3.4    35.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 188 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128D  LEU*     3.6    29.3    -      -       +      +
    130D  LEU*     6.1     0.9    -      -       -      +
    131D  ARG*     2.8    46.9    +      -       -      +
    184D  ILE*     2.9    21.2    +      -       +      +
    185D  HIS*     3.7     5.9    -      -       -      +
    187D  PHE*     1.3    73.7    -      -       -      +
    189D  LEU*     1.3    58.9    +      -       -      +
    191D  ALA*     3.2     3.7    +      -       -      +
    192D  TRP*     2.9    28.8    +      -       -      +
    281D  GLU      3.9     5.7    -      -       -      +
    282D  ALA*     4.6     2.9    -      -       -      -
    285D  ALA*     3.4    20.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 189 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130D  LEU*     4.3     9.2    -      -       +      -
    131D  ARG*     5.9     0.4    -      -       +      -
    136D  LEU*     3.5    35.0    -      -       +      -
    139D  LEU*     5.9     0.4    -      -       +      -
    154D  LEU*     5.5     0.2    -      -       +      -
    185D  HIS      3.0    17.6    +      -       -      +
    186D  PHE*     3.1    15.0    +      -       +      +
    188D  ASP*     1.3    76.0    +      -       -      +
    190D  LEU*     1.3    60.5    +      -       +      +
    192D  TRP*     3.3    34.8    +      -       +      +
    193D  LEU*     2.9    50.8    +      -       +      +
    247D  ILE*     3.1    37.2    -      -       +      -
    256D  PHE*     3.7     2.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 190 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152D  VAL*     4.3    13.0    -      -       +      -
    154D  LEU*     4.5    20.4    -      -       +      -
    186D  PHE      2.8    24.8    +      -       -      +
    187D  PHE*     3.8    15.0    -      -       +      +
    189D  LEU*     1.3    76.3    -      -       +      +
    191D  ALA*     1.3    56.1    +      -       -      +
    193D  LEU*     3.4     3.1    +      -       +      -
    194D  PHE*     2.8    58.9    +      -       +      +
    214D  LEU*     4.2    16.8    -      -       +      -
    216D  LEU*     3.6    14.1    -      -       +      +
    221D  VAL*     3.8    31.9    -      -       +      -
    223D  TRP*     5.6     0.2    -      -       +      -
    247D  ILE*     4.9     4.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 191 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131D  ARG*     5.4     2.5    -      -       -      +
    187D  PHE      3.0    18.6    +      -       -      +
    188D  ASP*     3.7     8.3    -      -       -      +
    190D  LEU*     1.3    75.5    -      -       -      +
    192D  TRP*     1.3    61.4    +      -       -      +
    195D  GLY*     2.9    35.8    +      -       -      +
    216D  LEU*     4.2     2.0    -      -       +      +
    281D  GLU      6.1     0.4    -      -       -      +
    284D  GLU*     3.6    35.0    -      -       +      -
    285D  ALA*     4.5     4.0    -      -       -      +
    288D  VAL*     6.1     0.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 192 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130D  LEU      4.2     3.4    -      -       -      -
    131D  ARG*     3.4    84.3    -      -       +      +
    136D  LEU      4.2    12.1    -      -       -      -
    137D  LEU*     4.0    22.4    -      -       +      -
    140D  LYS*     3.3    55.3    +      -       +      +
    188D  ASP      2.9    16.9    +      -       -      +
    189D  LEU*     3.4    30.7    -      -       +      +
    191D  ALA*     1.3    78.5    -      -       -      +
    193D  LEU*     1.3    70.0    +      -       +      +
    195D  GLY      4.9     0.2    +      -       -      -
    277D  PHE*     6.0     0.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 193 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136D  LEU      4.9     0.4    -      -       -      +
    139D  LEU*     4.2    24.0    -      -       +      -
    140D  LYS*     3.7    44.5    +      -       +      +
    143D  LEU*     4.4     8.2    -      -       +      +
    189D  LEU*     2.9    40.9    +      -       +      +
    190D  LEU*     5.1     2.0    -      -       +      -
    192D  TRP*     1.3    94.0    -      -       +      +
    194D  PHE*     1.3    95.1    +      -       +      +
    195D  GLY      3.9     0.4    -      -       -      -
    247D  ILE*     5.9     3.8    -      -       +      -
    249D  VAL*     6.0     0.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 194 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143D  LEU*     4.0    25.8    -      -       +      -
    150D  LYS*     3.8    23.6    -      -       +      -
    152D  VAL*     3.9    26.9    -      -       +      -
    190D  LEU*     2.8    42.6    +      -       +      +
    193D  LEU*     1.3    98.7    -      -       +      +
    195D  GLY*     1.3    62.0    +      -       -      +
    216D  LEU*     3.5    10.0    -      -       +      +
    217D  GLU*     3.5     5.9    +      -       -      +
    218D  GLY*     2.9    34.7    +      -       -      -
    219D  ALA*     3.6    24.5    -      -       +      -
    221D  VAL*     5.1     0.4    -      -       +      -
    247D  ILE*     6.0     0.7    -      -       +      -
    249D  VAL*     4.6     6.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 195 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191D  ALA*     2.9    28.1    +      -       -      +
    192D  TRP      4.9     0.2    +      -       -      -
    193D  LEU      3.9     0.4    -      -       -      -
    194D  PHE*     1.3    77.3    -      -       -      +
    196D  ARG*     1.3    64.4    +      -       -      -
    197D  ALA      3.8     0.7    +      -       -      -
    216D  LEU*     3.3    15.9    -      -       -      +
    217D  GLU*     3.5     9.9    -      -       -      -
    284D  GLU*     4.3     3.6    -      -       -      +
----------------------------------------------------------
 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