Contacts of the helix formed by residues 80 - 91 (chain C) in PDB entry 3OP5


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 LEU 80 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73C  GLU*     4.9    17.7    -      -       +      -
     81C  PHE*     1.4    58.4    +      -       -      +
     82C  THR*     3.4     5.5    -      -       -      +
     83C  GLU*     3.9    11.5    -      -       -      +
     84C  LEU*     2.8    35.8    +      -       -      +
    127C  ARG*     5.2    11.7    -      -       +      -
    129C  MET*     3.5    24.2    -      -       +      +
    199C  GLY*     5.1     7.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 81 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80C  LEU*     1.4    76.4    -      -       -      +
     82C  THR*     1.4    61.2    +      -       -      +
     84C  LEU*     3.5    11.6    +      -       +      +
     85C  LYS*     3.0    32.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 82 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80C  LEU      4.4     2.0    -      -       -      +
     81C  PHE*     1.4    78.3    -      -       -      +
     83C  GLU*     1.4    57.3    +      -       -      +
     85C  LYS*     3.4     6.8    +      -       -      +
     86C  PHE*     3.1    26.5    +      -       -      +
    173C  TYR*     5.1     4.7    +      -       +      -
    198C  TYR      3.7     6.3    -      -       -      +
    199C  GLY      3.4    25.8    +      -       -      +
    200C  LEU*     4.6     0.9    -      -       -      -
    201C  ALA*     3.5    25.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 83 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71C  LYS*     4.5    13.7    -      -       -      +
     80C  LEU*     3.5    12.7    +      -       -      +
     81C  PHE      3.4     0.2    -      -       -      -
     82C  THR*     1.4    75.6    -      -       -      +
     84C  LEU*     1.3    64.8    +      -       -      +
     86C  PHE*     3.3     2.9    +      -       -      +
     87C  TYR*     3.1    54.1    +      -       +      -
    129C  MET*     3.6    20.7    -      -       +      +
    197C  ASP*     3.4    14.3    +      -       -      -
    198C  TYR*     2.9    44.5    +      -       +      +
    199C  GLY*     3.8     9.9    -      -       -      +
    365C  REB      4.9     5.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 84 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80C  LEU      2.8    22.2    +      -       -      +
     81C  PHE*     3.8    11.4    -      -       +      +
     83C  GLU*     1.3    72.0    -      -       -      +
     85C  LYS*     1.4    56.7    +      -       -      +
     87C  TYR*     3.4     2.1    +      -       -      -
     88C  GLN*     2.9    50.9    +      -       -      +
    113C  TYR*     3.2    44.2    -      -       +      +
    116C  SER*     3.6    20.9    -      -       -      +
    129C  MET*     4.1    12.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 85 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81C  PHE*     3.0    26.6    +      -       +      +
     82C  THR*     3.7     7.2    -      -       -      +
     83C  GLU      3.3     0.2    -      -       -      -
     84C  LEU*     1.4    76.1    -      -       -      +
     86C  PHE*     1.4    55.5    +      -       -      +
     88C  GLN*     3.9     9.5    -      -       -      +
     89C  ARG*     3.0    34.1    +      -       -      +
    173C  TYR*     3.8    10.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 86 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82C  THR      3.1    13.5    +      -       -      +
     83C  GLU      3.3     6.7    +      -       -      +
     85C  LYS*     1.4    76.2    -      -       -      +
     87C  TYR*     1.3    75.0    +      +       -      +
     89C  ARG      3.3     0.5    +      -       -      -
     90C  ALA*     2.8    52.8    +      -       +      +
     91C  ALA*     4.3     4.7    -      -       +      -
    110C  VAL*     4.4     9.2    -      -       +      -
    168C  ILE*     3.7    26.2    -      -       +      -
    173C  TYR*     3.6    48.2    +      +       +      -
    198C  TYR*     3.4    62.1    -      +       +      -
    201C  ALA*     4.7     2.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 87 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83C  GLU*     3.1    46.8    +      -       +      +
     84C  LEU      3.9     3.6    -      -       -      +
     86C  PHE*     1.3    90.0    -      +       -      +
     88C  GLN*     1.3    59.3    +      -       -      +
     91C  ALA*     3.0    48.6    +      -       +      +
     92C  LYS*     3.7     1.2    +      -       -      +
    111C  PRO*     3.3    43.2    -      -       +      +
    113C  TYR*     3.6    33.3    -      -       +      -
    129C  MET*     4.7     0.7    -      -       -      -
    131C  MET*     3.7    26.0    -      -       +      -
    196C  VAL*     4.7     0.9    -      -       -      -
    198C  TYR*     3.4    27.9    -      +       -      -
    365C  REB      3.8    11.9    +      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 88 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84C  LEU*     2.9    36.7    +      -       +      +
     85C  LYS*     3.9     8.4    -      -       -      +
     87C  TYR*     1.3    76.3    -      -       -      +
     89C  ARG*     1.4    52.0    +      -       +      +
     92C  LYS*     2.8    37.9    +      -       -      +
    113C  TYR*     3.7    35.7    +      -       +      -
    116C  SER*     4.9     1.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 89 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85C  LYS*     3.0    18.8    +      -       -      +
     86C  PHE      4.1     1.3    -      -       -      +
     88C  GLN*     1.4    78.0    -      -       -      +
     90C  ALA*     1.4    57.4    +      -       -      +
     92C  LYS*     3.3     9.7    +      -       -      +
     95C  GLN*     3.0    18.7    +      -       -      -
    171C  HIS*     5.0     1.9    -      -       -      +
    172C  GLU*     4.4     3.4    +      -       -      -
    173C  TYR*     4.3    18.6    -      -       +      -
    203C  ARG*     3.1    47.8    -      -       -      +
    207C  GLU*     5.6     3.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 90 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86C  PHE*     2.8    40.7    +      -       +      +
     89C  ARG*     1.4    73.3    -      -       -      +
     91C  ALA*     1.3    55.3    +      -       -      +
     95C  GLN*     3.3    13.0    -      -       -      +
    167C  TYR*     2.5    36.7    +      -       +      -
    168C  ILE*     5.7     0.2    -      -       -      -
    171C  HIS*     3.8    25.8    -      -       +      +
    173C  TYR*     4.3     7.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 91 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86C  PHE*     3.7     3.3    +      -       +      -
     87C  TYR*     3.0    46.5    +      -       +      +
     90C  ALA*     1.3    79.5    -      -       -      +
     92C  LYS*     1.4    62.6    +      -       -      +
     93C  PRO*     3.6     4.9    -      -       -      +
     96C  ILE*     3.7    18.6    -      -       +      +
    110C  VAL*     4.0     9.4    -      -       +      -
    111C  PRO      3.7    10.8    -      -       -      +
    112C  LYS*     4.6     0.9    -      -       -      -
    113C  TYR*     4.2    14.6    +      -       -      +
----------------------------------------------------------
 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