Contacts of the helix formed by residues 85 - 99 (chain C) in PDB entry 1PZY


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 85 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3C  LEU*     4.1    17.7    -      -       +      -
      8C  VAL*     5.9     0.4    -      -       -      -
     11C  ALA*     4.0    27.1    -      -       +      +
     12C  ILE*     4.8     2.9    -      -       +      -
     38C  THR*     4.0    19.7    -      -       +      -
     52C  LEU*     3.8    31.2    -      -       +      -
     53C  PHE*     5.3     0.2    -      -       +      -
     82C  ASP      4.6     7.6    -      -       -      +
     83C  ASP      3.6     9.5    +      -       -      +
     84C  GLU*     1.3    73.8    -      -       -      +
     86C  ASP*     1.3    56.3    +      -       -      +
     87C  ASP      3.3     2.0    -      -       -      -
     88C  ASP*     3.6    24.7    -      -       +      +
     89C  ILE*     2.7    50.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 86 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84C  GLU*     3.2    29.0    -      -       +      +
     85C  LEU*     1.3    79.8    +      -       -      +
     87C  ASP*     1.3    58.4    +      -       +      +
     89C  ILE*     3.6    10.0    +      -       -      +
     90C  ALA*     3.1    24.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 87 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75C  ILE*     4.5    24.2    -      -       +      +
     79C  LYS*     3.3    31.7    -      -       -      +
     80C  LEU*     4.2     6.0    -      -       -      +
     82C  ASP*     4.9     1.1    -      -       -      +
     84C  GLU*     2.9     5.6    -      -       -      +
     86C  ASP*     1.3    74.3    -      -       +      +
     88C  ASP*     1.3    70.5    +      -       -      +
     90C  ALA*     3.7     9.5    -      -       -      +
     91C  CYS*     3.1    25.8    +      -       -      +
    404C   CA      2.5    23.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 88 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38C  THR      5.5     0.2    -      -       -      +
     50C  TYR      5.4     0.5    -      -       -      +
     51C  GLY*     4.9     0.5    -      -       -      -
     52C  LEU      4.8     5.9    +      -       -      -
     53C  PHE*     3.8    24.6    +      -       +      +
     55C  ILE*     3.9     4.2    -      -       +      +
     80C  LEU*     3.2    43.4    -      -       +      +
     82C  ASP      5.5     0.3    -      -       -      +
     84C  GLU      3.1     2.6    -      -       -      +
     85C  LEU*     3.1    25.0    +      -       +      +
     87C  ASP*     1.3   101.1    -      -       -      +
     89C  ILE*     1.3    61.8    +      -       -      +
     91C  CYS*     3.3     2.3    +      -       -      +
     92C  ALA*     2.8    31.0    +      -       -      +
    404C   CA      2.6    12.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 89 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11C  ALA      3.1    27.8    -      -       -      +
     12C  ILE*     3.5    27.8    -      -       +      -
     14C  ASP*     4.7    12.3    -      -       +      +
     15C  ILE*     4.0    19.7    -      -       +      -
     53C  PHE*     4.2     9.6    -      -       +      -
     85C  LEU*     2.7    30.9    +      -       +      +
     86C  ASP*     3.7     8.3    -      -       -      +
     88C  ASP*     1.3    77.8    -      -       -      +
     90C  ALA*     1.3    57.1    +      -       -      +
     92C  ALA*     3.4     7.5    +      -       -      +
     93C  LYS*     2.9    56.7    +      -       -      +
----------------------------------------------------------
 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  ASP      3.1    16.4    +      -       -      +
     87C  ASP*     3.8    10.1    -      -       -      +
     88C  ASP      3.1     0.2    -      -       -      -
     89C  ILE*     1.3    75.4    -      -       -      +
     91C  CYS*     1.3    65.6    +      -       -      +
     93C  LYS*     3.1    26.4    +      -       +      +
     94C  LYS*     3.1    16.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 91 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55C  ILE*     3.6    41.5    -      -       +      -
     60C  TRP*     4.1     2.5    -      -       -      -
     73C  CYS*     2.0    52.9    -      -       +      -
     75C  ILE*     5.6     3.4    -      -       +      -
     80C  LEU*     5.0     4.7    -      -       +      -
     87C  ASP      3.1    15.4    +      -       -      +
     90C  ALA*     1.3    76.2    -      -       -      +
     92C  ALA*     1.3    67.2    +      -       -      +
     94C  LYS*     3.0     7.5    +      -       -      +
     95C  ILE*     3.0    22.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 92 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15C  ILE*     4.3     7.4    -      -       +      -
     26C  TRP*     4.9     0.9    -      -       +      -
     53C  PHE*     3.8    34.3    -      -       +      -
     55C  ILE*     4.4     1.9    -      -       -      +
     88C  ASP      2.8    17.2    +      -       -      +
     89C  ILE*     3.5     7.4    -      -       -      +
     91C  CYS*     1.3    77.1    -      -       -      +
     93C  LYS*     1.3    57.6    +      -       -      +
     95C  ILE*     3.1     7.5    +      -       -      +
     96C  LEU*     2.8    33.4    +      -       -      +
    104C  TRP*     3.8    16.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 93 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14C  ASP*     3.3    33.5    +      -       -      -
     15C  ILE*     4.3    10.8    -      -       +      +
     18C  TYR*     3.6    35.7    -      -       +      -
     89C  ILE*     2.9    44.8    +      -       -      +
     90C  ALA*     3.1    14.6    +      -       -      +
     92C  ALA*     1.3    75.9    -      -       -      +
     94C  LYS*     1.3    63.0    +      -       +      +
     96C  LEU*     3.0     8.9    +      -       -      +
     97C  ALA*     2.9    20.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 94 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60C  TRP*     4.4     2.9    -      -       +      -
     72C  ILE*     3.5    30.5    +      -       +      +
     73C  CYS*     4.1    26.4    +      -       -      +
     90C  ALA      3.1    10.8    +      -       -      +
     91C  CYS*     3.0    10.1    +      -       -      +
     93C  LYS*     1.3    79.1    -      -       +      +
     95C  ILE*     1.3    52.8    +      -       -      +
     97C  ALA*     3.1     6.2    +      -       -      -
     98C  ILE*     2.8    50.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 95 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55C  ILE*     4.1    25.8    -      -       +      -
     60C  TRP*     3.4    55.6    -      -       +      -
     91C  CYS*     3.0    17.8    +      -       -      +
     92C  ALA*     3.4     7.6    -      -       -      +
     94C  LYS*     1.3    74.8    -      -       -      +
     96C  LEU*     1.3    57.9    +      -       -      +
     99C  LYS*     2.8    26.8    +      -       +      -
    100C  GLY      2.8     7.4    +      -       -      -
    103C  TYR*     3.6    46.9    -      -       +      -
    104C  TRP*     3.6    15.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 96 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15C  ILE*     4.1    13.7    -      -       +      -
     18C  TYR*     3.8    37.7    -      -       +      +
     19C  GLN*     3.6    24.1    +      -       +      +
     21C  ILE*     4.7     2.2    -      -       +      -
     26C  TRP*     3.8    25.8    -      -       +      +
     92C  ALA      2.8    16.7    +      -       -      +
     93C  LYS*     3.0     9.4    +      -       -      +
     95C  ILE*     1.3    78.0    -      -       -      +
     97C  ALA*     1.3    59.2    +      -       -      +
    100C  GLY*     3.2    22.5    +      -       -      +
    101C  ILE*     3.9    25.4    -      -       +      +
    104C  TRP*     3.6    22.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 97 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18C  TYR*     3.6    22.4    -      -       -      +
     19C  GLN*     4.1    10.4    +      -       -      +
     93C  LYS      2.9    10.5    +      -       -      +
     94C  LYS*     3.7     6.1    -      -       -      +
     96C  LEU*     1.3    77.2    -      -       -      +
     98C  ILE*     1.3    66.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 98 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60C  TRP*     3.9    18.6    -      -       +      -
     72C  ILE*     3.9    32.1    -      -       +      -
     94C  LYS*     2.8    30.0    +      -       +      +
     97C  ALA*     1.3    82.1    -      -       +      +
     99C  LYS*     1.3    61.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 99 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60C  TRP*     4.3    20.2    -      -       +      +
     95C  ILE*     2.8    16.7    +      -       +      +
     98C  ILE*     1.3    77.7    -      -       +      +
    100C  GLY*     1.3    61.7    +      -       -      +
    102C  ASP*     5.0    10.3    +      -       +      +
    103C  TYR*     4.0    40.3    -      -       +      +
----------------------------------------------------------
 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