Contacts of the helix formed by residues 64 - 78 (chain C) in PDB entry 4BZ5


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 SER 64 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60C  THR*     4.3     0.4    -      -       -      -
     62C  PHE      3.9     1.0    +      -       -      -
     63C  HIS*     1.3    75.9    -      -       -      +
     65C  THR*     1.3    65.4    +      -       -      +
     66C  GLU*     3.3    20.1    -      -       -      +
     67C  TYR*     3.1    19.4    +      -       -      +
     68C  VAL*     3.1    23.0    +      -       -      +
    145C  ARG*     3.1    31.6    +      -       -      +
    146C  SER*     2.5    27.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 65 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56C  TYR*     2.9    36.9    +      -       +      +
     60C  THR*     3.9    15.5    -      -       +      +
     63C  HIS      3.8     0.2    +      -       -      -
     64C  SER*     1.3    72.9    -      -       -      +
     66C  GLU*     1.3    68.6    +      -       -      +
     68C  VAL      3.4     0.6    +      -       -      +
     69C  ASP*     2.9    36.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 66 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64C  SER*     3.3    24.1    +      -       -      +
     65C  THR*     1.3    90.7    +      -       -      +
     67C  TYR*     1.3    59.5    +      -       -      +
     69C  ASP*     3.5     9.5    +      -       -      +
     70C  ALA*     3.0    27.7    +      -       -      +
     95C  PHE*     3.8    24.6    -      -       +      -
    145C  ARG*     4.7     6.3    +      -       -      -
    146C  SER*     4.3     3.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 67 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63C  HIS*     3.7    28.5    -      +       +      -
     64C  SER*     3.1    22.3    +      -       -      +
     66C  GLU*     1.3    75.7    -      -       -      +
     68C  VAL*     1.3    67.9    +      -       -      +
     70C  ALA*     3.1     3.4    +      -       -      +
     71C  LEU*     2.9    27.7    +      -       +      +
     95C  PHE*     3.7    36.3    -      +       +      -
     97C  LEU*     4.1    14.9    -      -       +      +
    144C  LYS      4.5     2.0    -      -       -      -
    145C  ARG      3.8     3.6    -      -       -      +
    146C  SER*     3.7    16.2    -      -       -      -
    147C  GLU*     3.9     2.5    -      -       -      -
    148C  ALA*     3.3    40.1    +      -       -      +
    153C  TYR*     2.6    34.0    +      -       -      +
    154C  LEU*     4.1     7.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 68 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55C  MET*     5.6     1.3    -      -       -      -
     56C  TYR*     3.8    27.4    -      -       +      -
     59C  VAL*     3.7    31.6    -      -       +      -
     60C  THR*     4.1     8.7    -      -       +      -
     63C  HIS*     3.8    14.6    -      -       +      -
     64C  SER      3.1    17.6    +      -       -      +
     65C  THR      3.9     3.4    -      -       -      +
     67C  TYR*     1.3    76.4    -      -       -      +
     69C  ASP*     1.3    62.2    +      -       -      +
     71C  LEU*     3.2     7.5    +      -       -      +
     72C  LYS*     3.0    25.0    +      -       +      +
    108C  PHE*     4.1    23.6    -      -       +      -
    154C  LEU*     4.7     4.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 69 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56C  TYR*     2.8    31.0    +      -       -      -
     65C  THR*     2.9    26.1    +      -       -      +
     66C  GLU*     3.6     9.0    -      -       -      +
     68C  VAL*     1.3    75.4    -      -       -      +
     70C  ALA*     1.3    57.5    +      -       -      +
     72C  LYS*     3.4    12.1    +      -       -      +
     73C  LYS*     3.0    27.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 70 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66C  GLU      3.0    17.0    +      -       -      +
     67C  TYR      3.1     5.3    +      -       -      +
     69C  ASP*     1.3    74.2    -      -       -      +
     71C  LEU*     1.3    61.6    +      -       -      +
     73C  LYS*     3.1     5.9    +      -       -      -
     74C  LEU*     2.8    29.8    +      -       -      +
     91C  LEU*     4.8     8.1    -      -       +      -
     92C  MET*     3.5    13.7    -      -       +      +
     95C  PHE*     3.6    30.3    -      -       +      -
     97C  LEU*     4.2     9.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 71 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67C  TYR*     2.9    20.8    +      -       +      +
     68C  VAL*     3.2     6.0    +      -       -      +
     70C  ALA*     1.3    75.8    -      -       -      +
     72C  LYS*     1.3    62.7    +      -       -      +
     74C  LEU*     3.3     7.2    +      -       +      +
     75C  GLN*     3.2    20.6    +      -       -      +
     97C  LEU*     3.8    21.0    -      -       +      +
    107C  VAL*     4.1    15.1    -      -       +      +
    108C  PHE*     3.7    24.4    -      -       +      +
    111C  SER*     4.3     4.0    -      -       -      -
    153C  TYR*     3.8    39.0    -      -       +      +
    154C  LEU*     3.7    37.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 72 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55C  MET*     4.5    10.0    -      -       +      +
     56C  TYR*     5.1     7.4    -      -       +      -
     68C  VAL*     3.0    28.6    +      -       +      +
     69C  ASP*     3.6    14.4    -      -       -      +
     71C  LEU*     1.3    77.0    -      -       -      +
     73C  LYS*     1.3    62.0    +      -       -      +
     75C  GLN*     3.3     5.4    +      -       -      +
     76C  MET*     3.1    20.6    +      -       -      +
    108C  PHE*     3.6    45.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 73 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69C  ASP      3.0    17.3    +      -       -      +
     70C  ALA*     3.6     5.8    -      -       -      +
     72C  LYS*     1.3    73.0    -      -       -      +
     74C  LEU*     1.3    60.9    +      -       -      +
     76C  MET*     3.1    28.9    +      -       +      +
     77C  LEU*     2.8    38.7    +      -       +      +
     88C  ASP*     3.1    30.4    +      -       -      -
     91C  LEU*     4.4    17.3    -      -       +      +
     92C  MET*     4.0    15.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 74 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70C  ALA      2.8    17.1    +      -       -      +
     71C  LEU*     3.5    12.1    -      -       +      +
     73C  LYS*     1.3    72.7    -      -       -      +
     75C  GLN*     1.3    62.5    +      -       -      +
     77C  LEU*     3.4     2.5    +      -       -      +
     78C  HIS*     3.1    54.6    +      -       +      +
     84C  LEU*     5.2     4.3    -      -       +      -
     92C  MET*     3.6    30.6    -      -       +      +
     97C  LEU*     3.8    38.1    -      -       +      +
    102C  PRO      4.4     2.9    -      -       -      +
    103C  GLY*     3.5    28.0    -      -       -      +
    107C  VAL*     4.0    12.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 75 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71C  LEU      3.2     3.8    +      -       -      -
     72C  LYS      3.5     8.5    -      -       -      +
     74C  LEU*     1.3    76.0    -      -       -      +
     76C  MET*     1.3    67.9    +      -       -      +
     78C  HIS*     3.2     3.5    +      -       -      +
     79C  CYS*     3.1    27.2    +      -       -      -
    104C  PHE      4.2     3.4    -      -       -      -
    105C  PRO      3.2    20.9    -      -       -      +
    106C  SER*     3.1     8.8    -      -       -      -
    107C  VAL*     3.8    16.3    -      -       +      +
    108C  PHE*     2.7    39.2    +      -       +      +
    109C  ASP*     2.9    36.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 76 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72C  LYS      3.1    13.3    +      -       -      +
     73C  LYS*     3.5    37.9    -      -       +      +
     75C  GLN*     1.3    77.3    -      -       -      +
     77C  LEU*     1.3    78.3    +      -       +      +
     79C  CYS*     3.0    25.7    +      -       -      +
     80C  GLU*     3.5    20.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 77 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73C  LYS*     2.8    27.1    +      -       +      +
     74C  LEU*     3.7     5.6    -      -       +      +
     75C  GLN      3.2     0.2    -      -       -      -
     76C  MET*     1.3    96.1    -      -       +      +
     78C  HIS*     1.3    59.9    +      -       +      +
     79C  CYS      3.1     0.2    -      -       -      -
     80C  GLU*     3.0    45.2    +      -       -      +
     82C  LYS      4.4     4.3    -      -       -      +
     84C  LEU*     3.7    42.5    -      -       +      +
     88C  ASP*     3.9    24.7    -      -       -      +
     92C  MET*     3.8    24.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 78 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74C  LEU*     3.1    45.9    +      -       +      +
     75C  GLN      3.2     2.2    +      -       -      +
     77C  LEU*     1.3    81.4    -      -       +      +
     79C  CYS*     1.3    58.2    +      -       -      +
     80C  GLU      3.4     5.0    +      -       -      +
     84C  LEU*     4.7    12.6    -      -       +      +
    102C  PRO*     6.1     0.2    -      -       +      -
    103C  GLY*     3.5    34.1    +      -       -      -
    104C  PHE*     3.7    26.2    +      -       -      +
    105C  PRO*     3.6    18.8    -      -       +      +
----------------------------------------------------------
 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