Contacts of the helix formed by residues 173 - 186 (chain F) in PDB entry 5OF4


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 GLN 173 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130F  GLU*     3.1    37.4    +      -       -      +
    131F  THR*     4.3    11.1    +      -       -      +
    134F  ALA*     4.2    10.4    -      -       -      +
    170F  SER      4.3     0.8    +      -       -      -
    171F  ALA*     3.2     2.9    -      -       -      +
    172F  LEU*     1.3    80.3    -      -       +      +
    174F  TYR*     1.3    65.3    +      -       -      +
    175F  MET      3.4     2.0    -      -       -      +
    176F  ASN*     3.0    37.7    +      -       +      +
    177F  PHE*     3.0    26.5    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 174 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171F  ALA*     3.9    18.8    +      -       +      +
    172F  LEU      3.8     2.8    +      -       -      -
    173F  GLN*     1.3    77.0    -      -       -      +
    175F  MET*     1.4    73.2    +      -       +      +
    177F  PHE*     4.0     1.7    -      -       -      +
    178F  MET*     3.0    75.9    +      -       +      +
    202F  LEU*     4.2    21.8    -      -       +      -
    205F  GLN*     4.7     2.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 175 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    173F  GLN*     3.4     0.6    -      -       -      +
    174F  TYR*     1.4    93.5    -      -       +      +
    176F  ASN*     1.3    59.4    +      -       -      +
    178F  MET*     3.8     4.9    -      -       -      +
    179F  ASN*     2.9    33.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 176 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134F  ALA*     5.2     7.2    -      -       +      -
    173F  GLN*     3.0    47.8    +      -       +      +
    174F  TYR      3.3     0.4    -      -       -      -
    175F  MET*     1.3    76.6    -      -       -      +
    177F  PHE*     1.3    69.0    +      -       +      +
    179F  ASN*     3.4    11.7    +      -       -      +
    180F  VAL*     2.9    32.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 177 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130F  GLU*     3.2    48.0    -      -       +      -
    133F  LEU*     3.6    10.5    -      -       +      -
    134F  ALA*     3.6    20.6    -      -       +      -
    137F  LEU*     6.6     0.2    -      -       +      -
    165F  LYS*     4.1     6.7    -      -       -      -
    169F  ASP*     3.2    35.0    -      -       -      -
    170F  SER      3.9     5.6    -      -       -      -
    173F  GLN*     3.0    24.3    +      -       +      +
    174F  TYR      3.5     3.0    +      -       -      +
    175F  MET      3.4     0.2    -      -       -      -
    176F  ASN*     1.3    79.6    -      -       -      +
    178F  MET*     1.3    63.0    +      -       -      +
    180F  VAL*     3.2     8.3    +      -       +      +
    181F  ILE*     3.0    35.0    +      -       +      +
    202F  LEU*     3.9    28.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 178 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174F  TYR*     3.0    63.7    +      -       +      +
    175F  MET*     3.8     5.8    -      -       -      +
    177F  PHE*     1.3    77.6    -      -       +      +
    179F  ASN*     1.3    57.0    +      -       -      +
    181F  ILE*     3.0    16.5    +      -       +      +
    182F  PHE*     2.9    58.7    +      -       +      -
    202F  LEU*     4.1     8.5    -      -       +      -
    205F  GLN*     3.4    35.4    -      -       +      +
    209F  ILE*     4.8    11.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 179 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175F  MET*     2.9    20.3    +      -       +      +
    176F  ASN*     3.6    13.1    +      -       -      +
    178F  MET*     1.3    74.0    -      -       -      +
    180F  VAL*     1.3    63.1    +      -       -      +
    182F  PHE*     3.3    11.9    +      -       -      +
    183F  ALA*     2.9    29.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 180 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134F  ALA*     4.8     5.4    -      -       +      +
    137F  LEU*     3.8    37.0    -      -       +      -
    138F  ALA*     4.6    20.4    -      -       +      +
    141F  LEU*     3.7    20.4    -      -       +      +
    176F  ASN*     2.9    24.4    +      -       +      +
    177F  PHE*     3.7     7.6    -      -       +      +
    178F  MET      3.2     0.2    -      -       -      -
    179F  ASN*     1.3    80.3    -      -       +      +
    181F  ILE*     1.3    63.5    +      -       +      +
    183F  ALA*     3.3     5.1    +      -       -      -
    184F  ALA*     2.9    26.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 181 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137F  LEU*     5.9     2.7    -      -       +      -
    177F  PHE*     3.0    25.2    +      -       +      +
    178F  MET*     3.0    21.6    +      -       +      +
    180F  VAL*     1.3    77.9    -      -       +      +
    182F  PHE*     1.3    61.1    +      -       +      +
    184F  ALA*     3.2     7.8    +      -       -      +
    185F  GLN*     3.0    25.3    +      -       -      +
    191F  ILE*     5.1     4.0    -      -       +      -
    202F  LEU*     4.2     7.9    -      -       +      +
    205F  GLN      4.7     2.2    -      -       -      -
    206F  ALA*     3.7    36.3    -      -       +      +
    209F  ILE*     3.9    28.0    -      -       +      -
    210F  THR*     3.6    22.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 182 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178F  MET*     2.9    55.3    +      -       +      -
    179F  ASN*     3.6    11.0    -      -       -      +
    181F  ILE*     1.3    77.6    -      -       +      +
    183F  ALA*     1.3    65.4    +      -       -      +
    185F  GLN*     3.1    33.4    -      -       -      +
    186F  LYS*     3.0    41.8    +      -       +      +
    209F  ILE*     4.4    20.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 183 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141F  LEU*     4.1    14.1    -      -       +      -
    179F  ASN*     2.9    19.9    +      -       -      +
    180F  VAL*     3.8     6.5    -      -       +      +
    182F  PHE*     1.3    76.9    -      -       -      +
    184F  ALA*     1.3    62.2    +      -       -      +
    186F  LYS*     3.8     8.1    -      -       -      +
    187F  GLN*     3.2    26.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 184 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141F  LEU*     4.1    23.5    -      -       +      +
    180F  VAL*     2.9    17.5    +      -       +      +
    181F  ILE      3.4     5.4    -      -       -      +
    182F  PHE      3.1     0.2    -      -       -      -
    183F  ALA*     1.3    76.5    -      -       -      +
    185F  GLN*     1.3    62.7    +      -       -      +
    187F  GLN*     3.6     3.6    +      -       -      -
    189F  ILE*     3.3    33.8    +      -       +      +
    191F  ILE*     3.6    33.0    -      -       +      -
    210F  THR*     4.6     2.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 185 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181F  ILE      3.0    10.1    +      -       -      +
    182F  PHE*     3.1    44.8    +      -       -      +
    184F  ALA*     1.3    76.5    -      -       -      +
    186F  LYS*     1.3    77.0    +      -       +      +
    187F  GLN      3.1     2.0    -      -       -      -
    188F  ASN*     3.3    20.1    +      -       -      +
    189F  ILE      5.0     3.1    -      -       -      +
    209F  ILE*     3.3    30.4    -      -       -      +
    210F  THR*     4.8    14.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 186 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97E  ASP*     3.3    44.0    +      -       -      +
     98E  GLN*     4.7     6.2    +      -       -      +
    182F  PHE*     3.0    33.5    +      -       +      +
    183F  ALA*     3.4     7.2    +      -       -      +
    184F  ALA      3.3     0.2    -      -       -      -
    185F  GLN*     1.3    97.4    -      -       +      +
    187F  GLN*     1.3    57.6    +      -       -      +
    188F  ASN*     3.4     6.1    +      -       -      -
----------------------------------------------------------
 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