Contacts of the helix formed by residues 67 - 81 (chain C) in PDB entry 6P7B


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 PRO 67 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  PHE*     4.2    11.4    -      -       +      -
     10C  ILE*     3.7    23.6    -      -       +      -
     65C  LYS      4.9     0.2    -      -       -      +
     66C  SER*     1.3    82.6    -      -       -      +
     68C  ASN*     1.3    67.8    +      -       -      +
     69C  SER      3.0     3.1    -      -       -      -
     70C  LYS*     2.9    58.3    +      -       +      +
     71C  ILE*     3.0     6.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 68 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8C  ILE*     3.0    38.0    +      -       +      +
      9C  GLY*     3.2    23.7    -      -       -      -
     10C  ILE      3.8     5.4    +      -       -      -
     11C  LYS*     4.0     6.3    -      -       -      +
     62C  GLN*     3.7    31.7    +      -       +      +
     66C  SER*     3.0    16.2    +      -       -      +
     67C  PRO*     1.3    79.5    -      -       -      +
     69C  SER*     1.3    56.0    +      -       -      +
     71C  ILE*     3.3     6.2    +      -       -      +
     72C  ILE*     2.9    32.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 69 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  PHE*     4.1    10.6    -      -       -      -
     62C  GLN*     4.7     1.4    -      -       -      +
     63C  GLY      4.6     6.7    -      -       -      -
     64C  PHE*     4.8     6.2    -      -       -      +
     66C  SER*     3.0    18.9    +      -       -      -
     68C  ASN*     1.3    76.5    -      -       -      +
     70C  LYS*     1.3    65.0    +      -       -      +
     72C  ILE*     3.1     2.9    +      -       -      +
     73C  TYR*     3.0    37.8    +      -       -      -
     16E    T      3.8    38.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 70 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  PHE*     4.7     8.1    -      -       +      -
     73A  TYR*     3.4    61.8    +      -       +      +
     10C  ILE*     4.1    13.3    -      -       -      +
     41C  TRP*     3.5    41.0    -      -       +      +
     67C  PRO*     2.9    43.2    +      -       +      +
     69C  SER*     1.3    80.2    +      -       -      +
     71C  ILE*     1.3    60.4    +      -       +      +
     73C  TYR*     3.5     3.1    +      -       -      +
     74C  PHE*     2.9    28.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 71 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8C  ILE*     3.7    25.1    -      -       +      -
      9C  GLY      4.6     1.3    -      -       -      +
     10C  ILE*     4.2    21.8    -      -       +      -
     37C  TRP*     3.7    34.8    -      -       +      -
     41C  TRP*     4.1    16.2    -      -       +      -
     45C  VAL*     4.1    13.7    -      -       +      -
     67C  PRO      3.0    12.9    +      -       -      +
     68C  ASN*     3.5    11.9    -      -       -      +
     69C  SER      3.2     0.2    -      -       -      -
     70C  LYS*     1.3    81.4    -      -       +      +
     72C  ILE*     1.3    59.5    +      -       -      +
     74C  PHE*     3.3     6.0    +      -       -      +
     75C  ILE*     2.9    45.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 72 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8C  ILE*     4.7     8.3    -      -       +      -
     59C  LEU*     4.1    21.2    -      -       +      +
     60C  GLU      3.6    24.5    -      -       -      +
     62C  GLN*     4.1     7.9    -      -       +      +
     68C  ASN      2.9    19.1    +      -       -      +
     69C  SER*     3.1     8.2    +      -       -      +
     71C  ILE*     1.3    75.5    -      -       -      +
     73C  TYR*     1.3    60.4    +      -       +      +
     75C  ILE*     3.1     5.2    +      -       -      +
     76C  LYS*     3.0    32.6    +      -       +      +
     88C  VAL*     4.0    29.8    -      -       +      -
     16E    T      3.2    40.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 73 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  TRP*     3.6    34.3    -      +       -      -
     42A  GLU*     4.3     5.2    -      -       -      -
     70A  LYS*     3.6    43.0    -      -       +      +
     73A  TYR*     4.1     5.6    -      -       +      -
     74A  PHE*     3.6    14.2    -      -       +      +
     69C  SER*     3.0    34.4    +      -       -      +
     70C  LYS*     4.0     4.5    -      -       -      +
     72C  ILE*     1.3    72.8    -      -       -      +
     74C  PHE*     1.3    66.1    +      -       -      +
     76C  LYS*     3.3    22.8    +      -       +      +
     77C  GLY      3.0    18.9    +      -       -      -
     16E    T      2.2    71.8    +      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 74 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73A  TYR*     3.6    12.9    +      -       +      +
     76A  LYS*     4.0    11.0    -      -       +      -
     77A  GLY*     3.5    30.3    -      -       -      -
     80A  TYR*     4.1    21.3    -      +       +      -
     41C  TRP*     3.8    25.6    -      +       +      -
     42C  GLU*     3.8    38.8    -      -       +      -
     45C  VAL*     3.6    21.8    -      -       +      -
     46C  ALA      4.5     1.6    -      -       -      -
     70C  LYS      2.9    18.4    +      -       -      +
     71C  ILE      3.5     4.5    -      -       -      +
     73C  TYR*     1.3    76.5    -      -       -      +
     75C  ILE*     1.3    70.5    +      -       +      +
     77C  GLY      3.4     0.5    +      -       -      -
     78C  PHE*     2.8    43.3    +      +       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 75 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37C  TRP*     6.2     0.7    -      -       +      -
     45C  VAL*     3.3    34.8    -      -       +      -
     49C  LEU*     3.4    18.6    -      -       +      -
     57C  VAL*     4.4     4.7    -      -       +      -
     59C  LEU*     4.0    26.0    -      -       +      -
     71C  ILE*     2.9    29.3    +      -       +      +
     72C  ILE      3.1     6.7    +      -       -      +
     74C  PHE*     1.3    82.2    -      -       +      +
     76C  LYS*     1.3    63.7    +      -       -      +
     78C  PHE*     3.2     4.9    +      -       +      +
     79C  PHE*     3.0    35.6    +      -       +      +
     86C  VAL*     3.6    23.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 76 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  GLU*     3.5    25.8    +      -       -      +
     74A  PHE*     4.1    11.2    -      -       +      -
     59C  LEU*     6.0     0.4    -      -       +      -
     61C  LYS*     5.7     1.2    -      -       -      +
     72C  ILE*     3.0    19.2    +      -       +      +
     73C  TYR*     3.6    31.0    -      -       +      +
     75C  ILE*     1.3    76.8    -      -       +      +
     77C  GLY*     1.3    57.1    +      -       -      +
     79C  PHE      3.8     0.5    -      -       -      -
     80C  TYR*     2.9    33.8    +      -       +      +
     86C  VAL*     4.1    27.5    -      -       +      +
     88C  VAL*     4.0    26.6    -      -       +      +
     15E    T      4.9    10.7    -      -       -      +
     16E    T      4.7    12.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 77 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74A  PHE*     3.6    37.8    -      -       -      -
     77A  GLY      3.4     6.5    -      -       -      -
     78A  PHE*     3.1    19.3    -      -       -      +
     73C  TYR      3.0    11.1    +      -       -      -
     74C  PHE      3.8     1.8    -      -       -      -
     76C  LYS*     1.3    76.1    -      -       -      +
     78C  PHE*     1.3    63.8    +      -       -      +
     80C  TYR*     3.3    13.0    +      -       -      +
     81C  ASN*     4.4     0.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 78 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77A  GLY*     3.2    20.3    +      -       -      +
     80A  TYR*     4.0    25.6    -      +       +      -
     81A  ASN*     3.9    18.7    +      -       -      -
     46C  ALA*     3.8    28.5    -      -       +      -
     49C  LEU*     4.9     5.2    -      -       +      -
     50C  THR*     3.6    34.1    -      -       +      -
     74C  PHE*     2.8    32.3    +      +       +      +
     75C  ILE*     3.2     7.4    +      -       -      +
     77C  GLY*     1.3    79.7    -      -       -      +
     79C  PHE*     1.3    89.1    +      +       -      +
     80C  TYR      3.5     0.2    +      -       -      -
     81C  ASN*     3.6    16.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 79 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49C  LEU*     3.6    50.0    -      -       +      -
     50C  THR*     4.8     5.6    -      -       +      -
     54C  PRO*     4.3     8.7    -      -       +      -
     57C  VAL*     3.7    19.3    -      -       +      -
     75C  ILE*     3.0    17.6    +      -       +      +
     76C  LYS      3.8     1.3    -      -       -      -
     78C  PHE*     1.3    96.1    -      +       -      +
     80C  TYR*     1.3    64.8    +      -       -      +
     81C  ASN*     3.3     3.3    +      -       -      -
     82C  SER      3.5    16.0    +      -       -      +
     84C  THR*     3.1    47.4    +      -       +      +
     86C  VAL*     3.6    29.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 80 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  GLU*     3.9    27.4    -      -       +      -
     43A  ARG*     3.2    35.4    -      -       +      +
     46A  ALA*     3.9    17.5    -      -       +      -
     74A  PHE*     3.8    16.2    -      +       -      -
     78A  PHE*     3.9    20.2    -      +       +      -
     76C  LYS*     2.9    16.9    +      -       +      +
     77C  GLY*     3.5    12.8    -      -       -      +
     78C  PHE      3.3     2.0    -      -       -      -
     79C  PHE*     1.3    77.3    -      -       -      +
     81C  ASN*     1.3    70.0    +      -       -      +
     82C  SER*     3.2     1.9    +      -       -      -
     86C  VAL*     6.1     0.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 81 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78A  PHE*     3.5    40.3    +      -       -      +
     81A  ASN*     2.7    35.1    +      -       -      +
     77C  GLY      4.5     0.3    -      -       -      +
     78C  PHE      3.6     9.4    -      -       -      +
     79C  PHE      3.3     0.4    -      -       -      -
     80C  TYR*     1.3    81.4    -      -       -      +
     82C  SER*     1.3    68.7    +      -       -      +
----------------------------------------------------------
 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