Contacts of the helix formed by residues 191 - 209 (chain O) in PDB entry 4HOK


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 SER 191 (chain O).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125O  ILE*     3.2    18.6    -      -       -      +
    156O  TYR*     5.1     3.1    -      -       -      -
    164O  HIS*     4.0    12.8    -      -       -      -
    190O  GLN*     1.3    77.6    -      -       -      +
    192O  ARG*     1.3    68.3    +      -       -      +
    193O  ARG*     3.4    16.8    +      -       -      +
    194O  ASP*     3.0    22.0    +      -       -      +
    195O  ASP*     3.7     3.3    +      -       -      +
    260O  PHE*     2.9    42.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 192 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120O  HIS*     3.1    44.3    -      -       +      +
    125O  ILE*     3.1    12.5    -      -       +      +
    156O  TYR*     3.5    34.5    +      -       +      -
    157O  ARG*     4.1    16.9    -      -       -      +
    164O  HIS*     4.2    12.5    +      -       -      +
    191O  SER*     1.3    75.2    +      -       -      +
    193O  ARG*     1.3    63.4    +      -       -      +
    195O  ASP      3.2    11.6    +      -       -      -
    196O  LEU*     3.4     4.7    +      -       -      +
    261O  ASP      3.4    24.5    +      -       -      -
    262O  ASP      3.5    13.3    +      -       -      +
    263O  LYS*     3.3    38.7    -      -       -      +
    264O  PRO*     3.7    13.7    -      -       +      -
    266O  TYR*     3.3    14.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 193 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167O  TYR*     5.1     3.0    -      -       -      -
    183O  ASN*     3.5    35.2    +      -       -      +
    188O  ILE*     3.8    23.4    -      -       -      +
    191O  SER*     3.4    13.2    +      -       -      +
    192O  ARG*     1.3    75.3    -      -       -      +
    194O  ASP*     1.3    76.5    +      -       -      +
    196O  LEU*     2.8    13.4    +      -       -      +
    197O  GLU*     2.8    28.2    +      -       -      +
    255O  CYS*     4.2    10.3    -      -       -      +
    256O  ARG      5.7     1.1    +      -       -      -
    258O  LEU*     3.6    40.9    +      -       +      -
    259O  ARG*     3.3    17.9    -      -       -      +
    260O  PHE*     2.8    46.1    -      -       -      +
    262O  ASP      5.2     1.7    +      -       -      +
    264O  PRO*     4.2     4.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 194 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181O  SER*     2.7    37.0    +      -       -      +
    183O  ASN*     3.3    18.9    +      -       -      +
    184O  THR*     3.9    10.0    +      -       -      +
    188O  ILE      5.9     0.4    -      -       -      -
    189O  GLU      4.2     2.6    -      -       -      +
    190O  GLN*     3.5    19.8    -      -       -      +
    191O  SER*     3.0    30.7    +      -       -      +
    193O  ARG*     1.3    85.0    +      -       -      +
    195O  ASP*     1.3    66.1    +      -       -      +
    197O  GLU*     3.1     4.3    +      -       -      +
    198O  SER*     3.0    28.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 195 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116O  ILE*     3.8    19.5    -      -       +      +
    120O  HIS*     3.4    13.2    +      -       -      +
    125O  ILE*     3.1    19.1    -      -       -      +
    126O  HIS*     2.4    37.4    +      -       -      +
    127O  ARG*     3.0    26.4    +      -       -      -
    129O  VAL*     4.0    11.0    -      -       +      +
    190O  GLN*     4.2     5.2    +      -       -      -
    191O  SER      3.7     1.2    +      -       -      +
    192O  ARG      3.2     9.4    +      -       -      +
    194O  ASP*     1.3    76.7    -      -       -      +
    196O  LEU*     1.3    62.8    +      -       -      +
    198O  SER*     3.5     6.5    -      -       -      -
    199O  LEU*     3.2    17.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 196 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113O  ILE*     4.4    22.9    -      -       +      -
    116O  ILE*     4.5    19.7    -      -       +      -
    120O  HIS*     4.7     0.2    -      -       +      -
    192O  ARG      3.4     5.6    +      -       -      +
    193O  ARG*     2.8    14.0    +      -       -      +
    195O  ASP*     1.3    78.6    -      -       -      +
    197O  GLU*     1.3    62.5    +      -       -      +
    199O  LEU*     2.9    11.2    +      -       +      -
    200O  GLY      3.1     1.7    +      -       -      -
    251O  TYR*     2.5    34.9    +      -       -      +
    255O  CYS*     4.0    11.2    -      -       +      -
    258O  LEU*     4.9     3.6    -      -       +      -
    264O  PRO*     3.3    41.3    -      -       +      -
    266O  TYR*     3.8    17.0    -      -       +      -
    269O  LEU*     4.3    15.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 197 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181O  SER*     3.7    10.9    -      -       -      -
    182O  ILE*     2.6    25.9    +      -       -      +
    183O  ASN*     4.5     8.7    +      -       -      -
    193O  ARG*     2.8    15.5    +      -       -      +
    194O  ASP*     3.1     7.8    +      -       -      +
    196O  LEU*     1.3    72.7    -      -       -      +
    198O  SER*     1.3    55.7    +      -       -      +
    200O  GLY*     2.5    28.6    +      -       -      -
    201O  TYR*     2.5    41.4    +      -       +      +
    252O  LEU*     3.9    13.1    -      -       +      +
    255O  CYS*     4.0    16.9    -      -       +      +
    256O  ARG*     3.1    37.1    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 198 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129O  VAL*     3.9    25.8    +      -       -      -
    179O  TYR*     3.0    28.6    +      -       -      +
    180O  ALA*     4.4     1.0    -      -       -      -
    181O  SER      4.1     6.9    +      -       -      -
    194O  ASP      3.0    13.2    +      -       -      -
    195O  ASP*     3.5    11.6    -      -       -      -
    197O  GLU*     1.3    70.3    -      -       -      +
    199O  LEU*     1.3    65.3    +      -       -      +
    200O  GLY      2.8     5.8    +      -       -      -
    201O  TYR*     3.1     4.9    +      -       -      +
    202O  VAL*     2.9    27.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 199 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    109O  ALA      4.3     1.3    -      -       -      +
    112O  MET*     3.5    44.0    -      -       +      -
    113O  ILE*     3.5    48.2    -      -       +      +
    116O  ILE*     3.9    16.8    -      -       +      -
    129O  VAL*     4.0     5.6    -      -       +      +
    195O  ASP      3.2     9.1    +      -       -      +
    196O  LEU*     2.9    13.9    +      -       +      +
    198O  SER*     1.3    79.0    -      -       -      +
    200O  GLY*     1.3    55.0    +      -       -      +
    202O  VAL*     3.4     7.1    +      -       +      +
    203O  LEU*     2.9    46.7    +      -       +      +
    251O  TYR*     3.3    10.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 200 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196O  LEU      3.1     5.3    +      -       -      -
    197O  GLU      2.5    19.2    +      -       -      -
    199O  LEU*     1.3    68.8    -      -       -      +
    201O  TYR*     1.3    64.0    +      -       -      -
    203O  LEU*     3.1    17.6    +      -       -      +
    204O  MET*     3.1    15.1    +      -       -      +
    251O  TYR*     3.8    21.9    +      -       -      -
    252O  LEU*     4.1    15.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 201 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179O  TYR*     3.4    28.5    -      -       +      -
    180O  ALA      3.2    22.2    -      -       -      -
    181O  SER*     4.0     0.9    -      -       -      -
    182O  ILE*     3.6     6.9    +      -       -      +
    197O  GLU*     2.5    43.7    +      -       +      -
    198O  SER*     3.1     2.7    +      -       -      +
    200O  GLY*     1.3    74.0    -      -       -      +
    202O  VAL*     1.3    57.4    +      -       -      +
    204O  MET*     4.4     3.1    -      -       -      -
    205O  TYR*     2.8    29.9    +      -       -      +
    211O  LEU*     3.5    14.6    -      -       +      +
    213O  TRP*     3.9    31.9    -      +       +      -
    232O  LYS*     4.3    13.0    -      -       +      -
    240O  LEU*     4.3     8.3    -      -       +      -
    252O  LEU*     3.8    19.3    -      -       +      -
    256O  ARG*     2.8    29.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 202 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112O  MET*     4.3    13.9    -      -       +      -
    129O  VAL*     4.1     6.3    -      -       +      +
    130O  LYS*     4.0    17.5    -      -       -      -
    131O  PRO*     3.8    21.1    -      -       +      -
    179O  TYR*     3.6    20.4    -      -       +      -
    198O  SER      2.9    28.7    +      -       -      +
    199O  LEU*     3.5    12.8    -      -       +      +
    201O  TYR*     1.3    76.8    -      -       -      +
    203O  LEU*     1.3    63.0    +      -       -      +
    205O  TYR*     3.0     9.3    +      -       -      +
    206O  PHE*     3.0    43.0    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 203 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105O  VAL*     4.2    11.8    -      -       +      +
    108O  LEU*     5.5     0.4    -      -       +      -
    109O  ALA*     3.9    29.6    -      -       +      +
    112O  MET*     4.6     7.0    -      -       -      -
    199O  LEU*     2.9    36.2    +      -       +      +
    200O  GLY*     3.1     6.9    +      -       -      +
    202O  VAL*     1.3    77.2    -      -       +      +
    204O  MET*     1.3    62.6    +      -       -      +
    206O  PHE*     3.0    15.4    +      -       +      +
    207O  ASN*     2.9    25.5    +      -       -      -
    248O  PHE*     4.3    16.2    -      -       +      -
    251O  TYR*     4.4    11.9    -      -       +      -
    273O  PHE*     3.6    38.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 204 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200O  GLY      3.1    10.6    +      -       -      +
    201O  TYR*     3.8     8.3    -      -       -      +
    203O  LEU*     1.3    78.3    -      -       -      +
    205O  TYR*     1.3    57.8    +      -       -      +
    207O  ASN*     3.0    35.5    +      -       +      +
    208O  LEU*     2.8    56.2    +      -       +      +
    211O  LEU*     4.3    12.1    -      -       +      -
    240O  LEU*     4.7     8.5    -      -       +      +
    241O  CYS*     3.1    42.4    -      -       -      -
    244O  TYR*     4.3     9.2    -      -       +      -
    248O  PHE*     4.0    15.5    -      -       +      -
    252O  LEU*     4.4     9.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 205 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90O  GLU*     2.6    31.3    +      -       -      -
     93O  PHE*     3.4    23.4    -      +       -      -
     98O  ARG*     2.8    28.5    +      -       -      -
    131O  PRO*     3.6    25.6    -      -       +      -
    178O  ARG*     3.4    23.1    +      -       -      -
    179O  TYR*     3.8     5.6    -      +       +      -
    201O  TYR      2.8    15.0    +      -       -      +
    202O  VAL*     3.0    13.0    -      -       -      +
    204O  MET*     1.3    76.9    -      -       -      +
    206O  PHE*     1.3    63.2    +      +       -      +
    209O  GLY*     2.7    35.0    +      -       -      -
    210O  SER*     3.3    18.4    +      -       -      +
    211O  LEU*     3.7    21.5    -      -       +      +
    214O  GLN*     3.9    10.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 206 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89O  LEU*     3.7    38.1    -      -       +      -
     93O  PHE*     3.4    31.7    -      +       +      -
     99O  LYS*     4.0     0.9    -      -       -      -
    100O  PHE*     3.4    47.4    +      +       +      -
    105O  VAL*     4.0    13.2    -      -       +      -
    108O  LEU*     4.3    10.8    -      -       +      -
    112O  MET*     4.5     6.7    -      -       -      -
    131O  PRO*     3.7    18.8    -      -       +      -
    202O  VAL*     3.0    33.2    +      -       +      -
    203O  LEU*     3.4    15.3    -      -       +      +
    205O  TYR*     1.3    95.9    -      +       -      +
    207O  ASN*     1.3    65.1    +      -       -      +
    209O  GLY      4.0     0.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 207 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99O  LYS*     3.8    16.6    -      -       -      +
    100O  PHE      4.8     6.0    -      -       -      +
    101O  SER      4.9     0.3    -      -       -      +
    102O  LEU*     4.4     5.9    -      -       -      +
    105O  VAL*     3.6    20.7    -      -       -      +
    203O  LEU      2.9    17.3    +      -       -      -
    204O  MET*     3.0    34.2    +      -       +      +
    206O  PHE*     1.3    82.0    -      -       -      +
    208O  LEU*     1.3    62.0    +      -       -      +
    209O  GLY      3.5     0.2    +      -       -      -
    244O  TYR*     3.6    35.9    +      -       +      -
    248O  PHE*     3.4    33.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 208 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99O  LYS*     4.8    10.3    +      -       -      +
    204O  MET*     2.8    30.4    +      -       +      +
    207O  ASN*     1.3    72.3    -      -       -      +
    209O  GLY*     1.3    55.5    +      -       -      +
    210O  SER*     3.1    28.6    +      -       -      +
    211O  LEU*     4.8     1.3    -      -       +      -
    212O  PRO*     4.3     7.9    -      -       +      -
    240O  LEU*     3.9    37.0    -      -       +      +
    242O  LYS      5.0     2.0    -      -       -      +
    244O  TYR*     3.4    34.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 209 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93O  PHE*     3.6     7.8    -      -       -      -
     98O  ARG*     3.1    48.5    +      -       -      +
     99O  LYS*     5.1     0.4    -      -       -      -
    205O  TYR*     2.7    18.1    +      -       -      -
    206O  PHE      4.5     0.2    -      -       -      -
    207O  ASN      3.3     3.0    -      -       -      -
    208O  LEU*     1.3    73.1    -      -       -      +
    210O  SER*     1.3    65.9    +      -       -      +
----------------------------------------------------------
 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