Contacts of the helix formed by residues 165 - 184 (chain A) in PDB entry 5WS3


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 THR 165 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88A  VAL*     3.2    31.6    -      -       +      +
    161A  MET*     6.1     3.4    -      -       +      -
    162A  PHE      4.7     6.7    -      -       -      +
    163A  LYS      4.0     4.6    +      -       -      +
    164A  SER*     1.3    79.4    +      -       -      +
    166A  ALA*     1.3    68.3    +      -       -      +
    167A  LYS*     3.6     0.9    -      -       -      +
    168A  ARG*     3.6    14.2    +      -       -      +
    169A  ALA*     3.1    22.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 166 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91A  TYR*     4.2    29.2    -      -       +      +
    165A  THR*     1.3    81.4    +      -       -      +
    167A  LYS*     1.3    62.4    +      -       -      +
    169A  ALA*     3.2     5.1    +      -       -      +
    170A  ARG*     2.9    27.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 167 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    164A  SER*     3.1    32.1    -      -       -      +
    166A  ALA*     1.3    76.7    -      -       -      +
    168A  ARG*     1.3    59.3    +      -       -      +
    170A  ARG*     3.7    11.6    -      -       +      +
    171A  ASN*     2.9    45.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 168 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88A  VAL*     4.2     8.6    -      -       +      +
     92A  PHE*     5.8     1.5    -      -       +      -
    151A  ASP*     2.5    39.2    +      -       -      +
    162A  PHE*     3.4    49.3    +      -       -      +
    164A  SER*     2.6    48.1    +      -       -      +
    165A  THR*     3.7    24.2    -      -       -      +
    166A  ALA      3.2     0.4    -      -       -      -
    167A  LYS*     1.3    77.7    -      -       -      +
    169A  ALA*     1.3    58.6    +      -       -      +
    171A  ASN*     3.4     7.1    +      -       -      +
    172A  SER*     2.9    39.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 169 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88A  VAL*     3.8    19.7    -      -       +      -
     91A  TYR*     4.1    27.8    -      -       +      -
     92A  PHE*     4.1    15.7    -      -       +      -
    165A  THR      3.1    14.4    +      -       -      +
    166A  ALA      3.2     7.4    +      -       -      +
    168A  ARG*     1.3    77.1    -      -       -      +
    170A  ARG*     1.3    57.9    +      -       -      +
    172A  SER*     3.2     1.9    +      -       -      -
    173A  ILE*     2.9    36.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 170 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166A  ALA      2.9    15.8    +      -       -      +
    167A  LYS*     3.7    11.0    -      -       -      +
    168A  ARG      3.3     0.2    -      -       -      -
    169A  ALA*     1.3    75.7    -      -       -      +
    171A  ASN*     1.3    68.5    +      -       -      +
    173A  ILE*     3.2     9.0    +      -       -      +
    174A  VAL*     3.0    40.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 171 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167A  LYS*     2.9    32.7    +      -       -      +
    168A  ARG*     3.8     6.9    -      -       -      +
    170A  ARG*     1.3    80.7    -      -       -      +
    172A  SER*     1.3    63.2    +      -       -      +
    174A  VAL*     3.4     6.9    +      -       -      +
    175A  ILE*     3.0    36.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 172 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92A  PHE*     3.7    22.9    -      -       -      -
    147A  CYS*     4.4    13.3    -      -       -      +
    168A  ARG*     2.9    28.2    +      -       -      +
    169A  ALA      3.5     4.7    -      -       -      -
    171A  ASN*     1.3    76.2    -      -       -      +
    173A  ILE*     1.3    57.3    +      -       -      +
    175A  ILE*     3.3    10.4    +      -       -      +
    176A  ILE*     2.9    33.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 173 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91A  TYR*     3.8    30.1    -      -       +      +
     92A  PHE*     3.8    20.6    -      -       +      -
     95A  ASN*     3.3    34.8    -      -       +      +
    169A  ALA      2.9    24.2    +      -       -      +
    170A  ARG*     3.2     7.6    +      -       +      +
    172A  SER*     1.3    71.9    -      -       -      +
    174A  VAL*     1.3    69.5    +      -       +      +
    176A  ILE*     3.2     8.3    +      -       +      +
    177A  TRP*     3.0    37.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 174 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170A  ARG*     3.0    30.6    +      -       +      +
    171A  ASN*     3.9     6.5    -      -       -      +
    173A  ILE*     1.3    80.6    -      -       +      +
    175A  ILE*     1.3    64.1    +      -       +      +
    177A  TRP*     3.3     6.7    +      -       +      +
    178A  ILE*     2.9    43.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 175 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171A  ASN*     3.0    27.9    +      -       +      +
    172A  SER*     3.5     7.9    -      -       -      +
    174A  VAL*     1.3    76.1    -      -       +      +
    176A  ILE*     1.3    67.7    +      -       +      +
    178A  ILE*     4.6     6.1    -      -       +      -
    179A  VAL*     2.9    40.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 176 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92A  PHE*     4.9     4.5    -      -       +      -
     95A  ASN*     4.3     5.4    -      -       -      +
    140A  VAL*     3.8    37.2    -      -       +      +
    143A  LEU*     3.4    46.0    -      -       +      +
    144A  THR*     3.7    15.5    -      -       +      +
    147A  CYS*     3.5    21.8    -      -       +      -
    172A  SER      2.9    22.6    +      -       -      +
    173A  ILE*     3.2     9.4    +      -       -      +
    175A  ILE*     1.3    79.6    -      -       +      +
    177A  TRP*     1.3    58.9    +      -       -      +
    179A  VAL*     4.0     1.4    -      -       -      +
    180A  SER*     2.9    34.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 177 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  ASN*     2.6    32.6    +      -       -      +
     98A  LEU*     5.1     7.4    -      -       +      +
     99A  ALA*     4.5    19.7    -      -       +      -
    102A  LEU*     4.1    25.4    -      -       +      -
    136A  VAL*     4.2    17.9    -      -       +      -
    137A  SER*     5.5     1.1    -      -       -      -
    140A  VAL*     3.7    31.9    -      -       +      -
    173A  ILE*     3.0    33.8    +      -       +      +
    174A  VAL*     3.8     6.1    -      -       +      +
    176A  ILE*     1.3    78.8    -      -       +      +
    178A  ILE*     1.3    59.0    +      -       +      +
    180A  SER*     3.3     2.8    +      -       -      -
    181A  CYS*     2.9    47.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 178 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174A  VAL*     2.9    39.4    +      -       +      +
    175A  ILE*     3.9     7.0    -      -       +      +
    177A  TRP*     1.3    73.8    -      -       +      +
    179A  VAL*     1.3    70.7    +      -       +      +
    181A  CYS*     3.9     4.4    -      -       -      +
    182A  ILE*     3.0    40.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 179 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143A  LEU*     4.1    19.5    -      -       +      -
    175A  ILE*     2.9    34.6    +      -       +      +
    176A  ILE      4.0     2.5    -      -       -      +
    178A  ILE*     1.3    79.0    -      -       +      +
    180A  SER*     1.3    59.1    +      -       -      +
    182A  ILE*     3.2     5.8    +      -       -      +
    183A  ILE*     2.9    52.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 180 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136A  VAL*     3.6     8.0    -      -       -      +
    139A  SER*     2.6    33.3    +      -       -      -
    140A  VAL*     3.1    33.3    +      -       -      +
    143A  LEU*     3.8     3.1    -      -       -      +
    176A  ILE      2.9    22.3    +      -       -      -
    177A  TRP      3.7     2.2    -      -       -      -
    178A  ILE      3.2     0.2    -      -       -      -
    179A  VAL*     1.3    79.3    -      -       -      +
    181A  CYS*     1.3    63.0    +      -       -      +
    183A  ILE*     3.4     3.7    -      -       -      +
    184A  MET*     3.4    26.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 181 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132A  TYR*     2.6    36.5    +      -       -      +
    136A  VAL*     3.9    20.0    -      -       -      -
    177A  TRP*     2.9    31.5    +      -       -      +
    178A  ILE*     3.9     4.3    -      -       -      +
    180A  SER*     1.3    77.5    -      -       -      +
    182A  ILE*     1.3    65.1    +      -       +      +
    184A  MET      4.0     0.5    +      -       -      -
    185A  ILE*     3.4    12.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 182 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178A  ILE*     3.0    32.7    +      -       +      +
    179A  VAL*     3.8     5.4    -      -       -      +
    181A  CYS*     1.3    80.0    -      -       +      +
    183A  ILE*     1.3    70.5    +      -       +      +
    185A  ILE*     3.2    40.1    +      -       +      +
    186A  PRO*     4.2     1.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 183 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139A  SER*     3.3    26.9    -      -       -      +
    143A  LEU*     5.4     1.1    -      -       +      -
    179A  VAL*     2.9    40.0    +      -       +      +
    180A  SER*     3.4     7.9    -      -       -      +
    182A  ILE*     1.3    81.1    -      -       +      +
    184A  MET*     1.3    74.0    +      -       +      +
    185A  ILE      3.3     0.9    -      -       -      -
    186A  PRO*     3.3    17.5    -      -       -      +
    223A  TYR*     5.2     3.8    +      -       -      -
    230A  VAL*     4.3    23.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 184 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132A  TYR*     3.3    18.0    -      -       +      -
    135A  THR*     3.4    52.5    -      -       -      +
    136A  VAL*     3.7    13.0    -      -       +      +
    139A  SER*     3.9    11.9    -      -       -      -
    180A  SER      3.4    16.4    +      -       -      +
    181A  CYS      4.0     0.2    +      -       -      -
    182A  ILE      3.2     1.4    -      -       -      -
    183A  ILE*     1.3    88.8    -      -       +      +
    185A  ILE*     1.3    62.6    +      -       -      +
    186A  PRO      3.4     2.0    -      -       -      -
    187A  GLN*     3.2    16.5    +      -       +      +
    188A  ALA      3.3     0.7    +      -       -      -
    223A  TYR*     4.6     5.8    -      -       -      -
    227A  PHE*     3.7    31.9    -      -       +      -
    230A  VAL*     6.0     0.2    -      -       +      -
    231A  THR*     3.8    19.7    -      -       +      -
----------------------------------------------------------
 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