Contacts of the helix formed by residues 186 - 205 (chain F) in PDB entry 2OX4


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 PRO 186 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125A  ARG*     5.6     8.7    -      -       -      +
    209A  ASP*     4.6    12.6    -      -       -      +
    236A  PHE*     5.2     0.2    -      -       -      -
    180F  PHE      5.6     2.7    -      -       -      +
    184F  PRO      4.2     3.6    -      -       -      +
    185F  LEU*     1.3    93.4    -      -       +      +
    187F  SER*     1.3    65.9    +      -       -      +
    188F  GLU*     4.1     9.4    -      -       +      +
    189F  THR*     3.1    29.4    +      -       -      +
    190F  ILE*     3.2    11.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 187 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206A  PRO*     3.3    36.2    +      -       -      +
    207A  ASP*     3.7    12.3    +      -       -      +
    209A  ASP*     4.9     5.9    +      -       -      -
    234A  ASN*     4.7    13.2    +      -       -      -
    185F  LEU      3.7     1.4    +      -       -      -
    186F  PRO*     1.3    73.3    -      -       -      +
    188F  GLU*     1.3    58.0    +      -       -      +
    190F  ILE*     3.3    10.4    +      -       -      +
    191F  LYS*     2.8    32.8    +      -       -      +
    225F  GLN*     5.8     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 188 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207A  ASP*     3.9    22.9    +      -       -      +
    172F  ARG*     2.6    41.7    +      -       -      +
    186F  PRO*     3.1     7.1    -      -       +      +
    187F  SER*     1.3    79.4    +      -       -      +
    189F  THR*     1.3    56.8    +      -       -      +
    191F  LYS*     3.3    12.4    +      -       -      +
    192F  ILE*     3.0    34.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 189 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168F  LEU*     4.0    13.6    -      -       +      +
    179F  VAL*     6.1     0.4    -      -       +      -
    180F  PHE      5.5     1.7    +      -       -      +
    181F  LEU*     3.7    30.1    -      -       +      -
    185F  LEU*     4.2    15.5    -      -       +      -
    186F  PRO*     3.1    30.1    +      -       -      +
    188F  GLU*     1.3    76.7    -      -       -      +
    190F  ILE*     1.3    64.8    +      -       -      +
    192F  ILE*     3.3    14.1    +      -       +      +
    193F  GLY      3.2    17.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 190 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168F  LEU*     5.3     0.2    -      -       -      -
    185F  LEU*     3.8    23.6    -      -       +      -
    186F  PRO      3.2    14.1    +      -       -      +
    187F  SER*     3.4    10.3    -      -       -      +
    189F  THR*     1.3    76.7    -      -       -      +
    191F  LYS*     1.3    57.3    +      -       -      +
    193F  GLY*     3.2     2.9    +      -       -      -
    194F  VAL*     2.9    31.8    +      -       +      +
    225F  GLN*     3.7    37.5    -      -       +      +
    226F  PHE*     3.8    22.4    -      -       +      -
    229F  ALA*     3.6    28.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 191 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172F  ARG*     4.4     4.7    -      -       -      +
    187F  SER*     2.8    21.4    +      -       -      +
    188F  GLU*     3.4    22.7    -      -       -      +
    190F  ILE*     1.3    77.4    -      -       -      +
    192F  ILE*     1.3    56.7    -      -       -      +
    194F  VAL*     3.7    18.6    -      -       -      +
    195F  GLU*     2.9    61.4    +      -       -      +
    198F  GLU*     4.9     4.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 192 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167F  VAL      4.2     2.0    -      -       -      +
    168F  LEU*     5.8     1.8    -      -       -      +
    170F  HIS      4.2     4.0    -      -       -      +
    171F  ASP*     4.9     7.6    -      -       +      -
    172F  ARG*     3.5    46.2    -      -       +      +
    188F  GLU*     3.0    27.1    +      -       +      +
    189F  THR*     3.6    13.0    -      -       +      +
    191F  LYS*     1.3    74.0    -      -       -      +
    193F  GLY*     1.3    61.9    +      -       -      +
    195F  GLU*     3.2    24.4    -      -       -      +
    196F  ARG*     3.3    49.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 193 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167F  VAL*     3.7    19.7    +      -       -      +
    168F  LEU*     4.0     4.0    -      -       -      +
    189F  THR      3.2     9.1    +      -       -      -
    192F  ILE*     1.3    78.5    -      -       -      +
    194F  VAL*     1.3    62.7    +      -       -      +
    196F  ARG*     3.3     4.7    +      -       -      +
    197F  VAL*     3.1    26.3    +      -       -      +
    226F  PHE*     3.6    26.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 194 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190F  ILE*     2.9    27.5    +      -       +      +
    191F  LYS*     3.7    18.4    -      -       -      +
    193F  GLY*     1.3    71.2    -      -       -      +
    195F  GLU*     1.3    54.8    +      -       -      +
    196F  ARG      3.2     0.2    +      -       -      -
    197F  VAL*     3.3     2.8    +      -       -      +
    198F  GLU*     2.8    39.4    +      -       -      +
    226F  PHE*     3.7     1.3    -      -       +      -
    229F  ALA*     3.6    37.7    -      -       +      +
    230F  ILE*     4.1    12.1    -      -       +      -
    233F  PHE*     4.1    20.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 195 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145F  LYS*     3.9    44.9    +      -       +      +
    172F  ARG*     2.9    47.3    +      -       -      +
    191F  LYS*     2.9    29.2    +      -       -      +
    192F  ILE*     3.2    21.2    -      -       -      +
    194F  VAL*     1.3    76.9    -      -       -      +
    196F  ARG*     1.3    60.1    +      -       +      +
    198F  GLU*     3.8     9.7    -      -       -      +
    199F  ALA*     2.9    29.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 196 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143F  GLY*     2.8    29.7    +      -       -      -
    145F  LYS*     4.4     6.7    -      -       -      -
    148F  TYR*     3.4    51.8    +      -       +      +
    167F  VAL*     2.8    50.1    +      -       +      -
    170F  HIS      2.8    22.2    +      -       -      +
    171F  ASP      3.0    26.3    +      -       -      -
    172F  ARG*     3.9     1.4    -      -       -      +
    192F  ILE*     3.3    27.7    +      -       -      +
    193F  GLY      3.3     3.5    +      -       -      +
    194F  VAL      3.1     0.8    -      -       -      -
    195F  GLU*     1.3    84.4    +      -       +      +
    197F  VAL*     1.3    65.9    +      -       -      +
    199F  ALA*     3.4     4.9    +      -       -      +
    200F  ILE*     3.0    31.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 197 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    165F  VAL*     5.6     1.3    -      -       +      -
    167F  VAL*     3.9    22.0    -      -       +      +
    193F  GLY      3.1    14.1    +      -       -      +
    194F  VAL      3.7     5.4    -      -       -      +
    196F  ARG*     1.3    73.7    -      -       -      +
    198F  GLU*     1.3    58.6    +      -       -      +
    200F  ILE*     3.3     9.3    +      -       -      +
    201F  ARG*     2.8    29.3    +      -       -      +
    210F  ILE*     4.3     8.8    -      -       +      +
    212F  VAL*     4.2    15.0    -      -       +      -
    226F  PHE*     4.6     0.2    -      -       +      -
    230F  ILE*     4.1    17.7    -      -       +      -
    233F  PHE*     3.7    33.2    -      -       +      -
    235F  ILE*     3.8    16.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 198 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191F  LYS*     4.9     4.0    +      -       -      -
    194F  VAL*     2.8    25.7    +      -       -      +
    195F  GLU*     3.8    11.6    -      -       -      +
    197F  VAL*     1.3    73.7    -      -       -      +
    199F  ALA*     1.3    58.5    +      -       -      +
    201F  ARG*     3.3     1.5    +      -       +      +
    202F  ASN*     2.9    53.3    +      -       -      +
    232F  GLU*     5.6     0.2    -      -       -      +
    233F  PHE*     3.7    37.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 199 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145F  LYS*     3.6    34.1    -      -       +      +
    146F  GLU*     5.4     0.7    -      -       -      -
    149F  ALA*     3.7    10.7    -      -       +      +
    195F  GLU      2.9    20.7    +      -       -      +
    196F  ARG      3.7     3.6    -      -       -      +
    198F  GLU*     1.3    75.9    -      -       -      +
    200F  ILE*     1.3    61.9    +      -       -      +
    202F  ASN*     3.6     7.1    +      -       -      +
    203F  ALA*     3.1    24.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 200 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131F  LEU*     4.5     5.4    -      -       +      -
    148F  TYR*     3.7    37.9    -      -       +      +
    149F  ALA*     4.6     1.8    -      -       -      +
    152F  ALA*     3.8    18.8    -      -       +      -
    163F  VAL*     4.2     8.7    -      -       +      -
    165F  VAL*     3.7    35.2    -      -       +      -
    167F  VAL*     4.8     0.4    -      -       +      -
    196F  ARG      3.0    23.7    +      -       -      +
    197F  VAL*     3.7     5.6    -      -       -      +
    199F  ALA*     1.3    73.3    -      -       -      +
    201F  ARG*     1.3    60.3    +      -       -      +
    203F  ALA*     3.1     5.9    +      -       -      +
    204F  VAL*     2.9    36.3    +      -       +      +
    210F  ILE*     3.7    23.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 201 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197F  VAL      2.8    20.1    +      -       -      +
    198F  GLU      3.8     3.6    -      -       -      +
    200F  ILE*     1.3    72.9    -      -       -      +
    202F  ASN*     1.3    62.6    +      -       -      +
    204F  VAL*     4.1     1.9    -      -       -      +
    205F  GLY*     2.9    51.2    +      -       -      -
    206F  PRO*     4.1    12.3    +      -       -      -
    208F  VAL      2.7    27.5    +      -       -      -
    209F  ASP*     4.7     2.2    +      -       -      +
    210F  ILE*     3.5    37.0    -      -       +      +
    233F  PHE*     2.9    40.1    +      -       +      +
    234F  ASN*     2.9    37.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 202 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198F  GLU*     2.9    42.7    +      -       -      +
    199F  ALA*     3.8     6.7    -      -       -      +
    201F  ARG*     1.3    82.6    -      -       -      +
    203F  ALA*     1.3    60.8    +      -       -      +
    205F  GLY*     4.1     3.8    +      -       -      -
    233F  PHE*     5.9     1.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 203 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149F  ALA*     3.9    20.9    -      -       +      +
    153F  LEU*     3.7    36.5    -      -       +      +
    199F  ALA      3.1    18.8    +      -       -      +
    200F  ILE*     3.6     3.6    -      -       -      +
    202F  ASN*     1.3    78.6    -      -       -      +
    204F  VAL*     1.3    62.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 204 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    152F  ALA*     3.8    29.4    -      -       +      -
    153F  LEU*     4.7     3.8    -      -       +      +
    156F  VAL*     3.8    22.2    -      -       +      +
    163F  VAL*     5.5     0.9    -      -       +      -
    200F  ILE*     2.9    31.5    +      -       +      +
    201F  ARG*     3.9    10.8    -      -       -      +
    203F  ALA*     1.3    79.6    -      -       +      +
    205F  GLY*     1.3    73.6    +      -       -      +
    207F  ASP      4.7     0.7    +      -       -      -
    208F  VAL*     3.6    40.5    +      -       +      +
    210F  ILE*     4.3     2.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 205 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201F  ARG*     2.9    40.1    +      -       -      -
    202F  ASN      4.1     3.1    +      -       -      -
    203F  ALA      3.5     2.4    -      -       -      -
    204F  VAL*     1.3    84.3    -      -       -      +
    206F  PRO*     1.3    71.4    -      -       -      +
    207F  ASP      3.4     1.0    +      -       -      -
    208F  VAL      3.9     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