Contacts of the helix formed by residues 177 - 191 (chain A) in PDB entry 5F0X


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 ASN 177 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100A  GLY      5.3     1.8    +      -       -      -
    101A  ARG*     5.7     4.2    -      -       -      +
    105A  ASP*     5.9     0.6    +      -       -      -
    175A  TYR      3.3     3.7    +      -       -      +
    176A  PHE*     1.3    74.0    -      -       -      +
    178A  ASP*     1.3    67.2    +      -       -      +
    179A  ALA*     3.1    12.3    +      -       -      +
    180A  GLN*     2.9    44.2    +      -       -      +
    181A  ARG*     3.0    26.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 178 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177A  ASN*     1.3    75.9    -      -       -      +
    179A  ALA*     1.3    58.1    +      -       -      +
    181A  ARG*     3.4    13.0    +      -       -      +
    182A  GLN*     2.9    30.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 179 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100A  GLY*     3.6    18.8    -      -       -      +
    177A  ASN*     3.1    10.8    +      -       -      +
    178A  ASP*     1.3    79.7    -      -       -      +
    180A  GLN*     1.3    58.9    +      -       -      +
    182A  GLN*     3.5     5.2    +      -       -      +
    183A  ALA*     2.9    30.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 180 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96A  LYS      5.2     1.0    +      -       -      -
     99A  ILE*     3.5    19.0    +      -       -      +
    100A  GLY*     4.1    14.1    -      -       -      +
    101A  ARG*     3.2    40.6    +      -       +      +
    175A  TYR*     4.2     3.5    -      -       -      +
    176A  PHE*     3.3    47.7    -      -       +      -
    177A  ASN*     2.9    48.3    +      -       -      +
    179A  ALA*     1.3    75.2    -      -       -      +
    181A  ARG*     1.3    62.9    +      -       -      +
    183A  ALA*     3.5     2.1    +      -       -      +
    184A  THR*     2.9    29.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 181 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172A  VAL*     3.5    16.2    -      -       +      +
    173A  PRO      3.5     6.3    +      -       -      -
    174A  ALA      3.1    16.6    +      -       -      -
    176A  PHE*     2.9    33.2    +      -       +      -
    177A  ASN      3.0    19.3    +      -       -      +
    178A  ASP*     3.7    11.9    +      -       -      +
    180A  GLN*     1.3    74.0    -      -       -      +
    182A  GLN*     1.3    64.5    +      -       -      +
    184A  THR*     3.2     8.5    +      -       -      -
    185A  LYS*     3.1    25.9    +      -       -      +
    198A  ILE*     3.9    33.8    +      -       +      +
    199A  ILE*     5.2     0.2    -      -       -      +
    200A  ASN*     3.0    33.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 182 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178A  ASP      2.9    17.5    +      -       -      +
    179A  ALA*     3.9     6.1    -      -       -      +
    181A  ARG*     1.3    76.4    -      -       -      +
    183A  ALA*     1.3    57.7    +      -       -      +
    185A  LYS*     3.2    24.3    +      -       -      +
    186A  ASP*     2.8    64.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 183 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99A  ILE*     3.7    12.0    -      -       +      +
    100A  GLY*     3.6    28.3    -      -       -      +
    143A  GLU*     3.8    14.5    -      -       -      +
    179A  ALA      2.9    18.6    +      -       -      +
    180A  GLN      3.8     2.5    -      -       -      +
    181A  ARG      3.3     0.2    -      -       -      -
    182A  GLN*     1.3    77.1    -      -       -      +
    184A  THR*     1.3    57.8    +      -       -      +
    186A  ASP*     3.4    11.9    +      -       -      +
    187A  ALA*     2.9    26.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 184 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  LEU*     4.1    16.6    -      -       +      +
     99A  ILE*     4.2    14.5    -      -       -      +
    150A  LEU*     4.5     3.2    -      -       +      +
    170A  VAL*     3.8    22.4    -      -       +      -
    171A  THR      5.0     0.2    -      -       -      +
    172A  VAL*     4.0    16.0    -      -       +      +
    176A  PHE*     4.1     8.7    -      -       -      -
    180A  GLN      2.9    14.9    +      -       -      -
    181A  ARG      3.5     9.0    -      -       -      -
    182A  GLN      3.2     0.2    -      -       -      -
    183A  ALA*     1.3    75.1    -      -       -      +
    185A  LYS*     1.3    64.8    +      -       -      +
    187A  ALA*     3.3     5.3    +      -       -      +
    188A  GLY*     3.1    17.2    +      -       -      -
    195A  VAL*     4.5     2.3    -      -       -      +
    198A  ILE*     3.7    19.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 185 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181A  ARG      3.1    16.2    +      -       -      +
    182A  GLN*     3.5    29.6    -      -       -      +
    184A  THR*     1.3    75.4    -      -       -      +
    186A  ASP*     1.3    58.1    +      -       -      +
    188A  GLY*     3.1     4.5    +      -       -      -
    189A  THR*     3.0    28.3    +      -       -      -
    193A  LEU      4.7     0.5    -      -       -      +
    195A  VAL*     3.5    40.0    +      -       +      +
    196A  MET      4.4     8.5    +      -       -      -
    197A  ARG*     4.9     0.8    -      -       -      +
    198A  ILE*     3.7    31.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 186 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143A  GLU*     4.7    11.3    -      -       +      +
    182A  GLN*     2.8    46.0    +      -       -      +
    183A  ALA*     3.5    12.8    -      -       -      +
    184A  THR      3.2     0.2    -      -       -      -
    185A  LYS*     1.3    72.6    -      -       -      +
    187A  ALA*     1.3    65.4    +      -       -      +
    189A  THR*     3.2    11.8    +      -       -      -
    190A  ILE*     3.1    30.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 187 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35A  LEU*     5.3     0.7    -      -       +      -
     99A  ILE*     4.5     0.7    -      -       +      -
    143A  GLU*     3.4    30.6    -      -       +      +
    146A  SER*     3.9    19.5    -      -       -      -
    147A  ALA*     3.2    14.6    -      -       -      +
    150A  LEU*     3.8    11.7    -      -       +      -
    183A  ALA      2.9    13.2    +      -       -      +
    184A  THR*     3.4    12.3    -      -       -      +
    186A  ASP*     1.3    74.7    -      -       -      +
    188A  GLY*     1.3    63.1    +      -       -      +
    190A  ILE*     3.3     2.3    +      -       -      -
    191A  ALA*     3.2    16.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 188 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    150A  LEU*     3.6    15.3    -      -       -      +
    184A  THR      3.1     7.3    +      -       -      -
    185A  LYS      3.1     9.5    +      -       -      -
    187A  ALA*     1.3    76.8    -      -       -      +
    189A  THR*     1.3    62.2    +      -       -      +
    191A  ALA*     2.9    11.3    +      -       -      +
    192A  GLY      3.1     0.2    +      -       -      -
    193A  LEU*     2.9    35.6    +      -       -      -
    195A  VAL*     3.9    11.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 189 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185A  LYS      3.0    14.0    +      -       -      -
    186A  ASP*     3.2    14.6    +      -       -      -
    188A  GLY*     1.3    73.3    -      -       -      +
    190A  ILE*     1.3    65.1    +      -       +      +
    192A  GLY*     3.0    13.7    +      -       -      -
    193A  LEU      3.3    10.0    +      -       -      +
    194A  ASN*     5.8     0.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 190 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143A  GLU*     4.0    33.9    -      -       +      +
    144A  GLU*     4.2    20.2    -      -       +      +
    147A  ALA*     3.5    19.7    -      -       +      -
    186A  ASP*     3.1    17.6    +      -       +      +
    187A  ALA      3.6     0.4    -      -       -      +
    188A  GLY      3.2     0.2    -      -       -      -
    189A  THR*     1.3    79.2    -      -       +      +
    191A  ALA*     1.3    56.2    +      -       -      +
    192A  GLY      3.2     3.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 191 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147A  ALA*     3.4    24.5    -      -       -      +
    150A  LEU*     3.9    16.6    -      -       +      -
    151A  THR*     3.4    18.5    +      -       -      +
    154A  LYS*     3.8    21.0    -      -       -      +
    187A  ALA      3.2    10.2    +      -       -      +
    188A  GLY*     2.9    10.1    +      -       -      +
    190A  ILE*     1.3    75.7    -      -       -      +
    192A  GLY*     1.3    60.9    +      -       -      +
    193A  LEU*     3.4     4.6    +      -       +      +
----------------------------------------------------------
 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