Contacts of the helix formed by residues 67 - 81 (chain L) in PDB entry 2ZJQ


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 THR 67 (chain L).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38L  ILE*     6.0     0.5    -      -       -      +
     56L  SER*     3.8    18.8    +      -       -      +
     60L  LYS*     3.3    32.5    -      -       -      +
     61L  SER*     5.0     0.2    -      -       -      +
     63L  ASN*     2.4    38.7    +      -       +      +
     64L  LYS*     3.6     9.1    +      -       -      -
     66L  ASP*     1.3    72.2    -      -       -      +
     68L  ALA*     1.3    56.6    +      -       -      +
     69L  ALA      3.2     2.0    -      -       -      -
     70L  ALA*     2.6    53.6    +      -       +      +
     71L  VAL*     3.0     8.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 68 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33L  ARG*     2.5    30.5    +      -       -      +
     38L  ILE*     6.4     0.7    -      -       -      -
     64L  LYS      5.2     2.1    +      -       -      -
     65L  THR      4.6     7.2    -      -       -      +
     66L  ASP*     2.3    32.0    +      -       -      +
     67L  THR*     1.3    68.9    -      -       -      +
     69L  ALA*     1.3    59.8    +      -       -      +
     71L  VAL*     3.1     7.0    -      -       -      +
     72L  GLY      3.5     0.9    +      -       -      -
     99L  ARG*     3.9    11.2    -      -       -      +
    102L  ALA*     3.0    24.7    -      -       +      -
    103L  LEU      3.5     2.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 69 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66L  ASP      3.9     2.0    +      -       -      +
     67L  THR      3.2     0.8    -      -       -      -
     68L  ALA*     1.3    77.6    -      -       +      +
     70L  ALA*     1.3    59.0    +      -       -      +
     72L  GLY      2.8     0.3    +      -       -      -
     73L  LYS*     2.5    43.3    +      -       +      +
    102L  ALA*     3.9     3.7    -      -       +      +
    106L  ALA*     3.5    21.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 70 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56L  SER*     4.4     2.0    -      -       -      +
     67L  THR*     2.6    48.1    +      -       +      +
     69L  ALA*     1.3    72.3    -      -       -      +
     71L  VAL*     1.3    48.5    +      -       -      +
     73L  LYS*     3.5     5.1    -      -       -      +
     74L  ALA*     2.5    40.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 71 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33L  ARG*     3.6     6.1    -      -       -      +
     38L  ILE*     3.8    14.6    -      -       +      -
     40L  ALA*     3.4    19.5    -      -       +      -
     54L  ALA      2.8    19.9    -      -       -      +
     55L  SER      2.5    22.4    -      -       -      +
     56L  SER*     2.9    14.6    +      -       -      +
     67L  THR*     3.0    17.7    -      -       -      +
     68L  ALA*     3.1    13.7    -      -       -      +
     70L  ALA*     1.3    72.2    -      -       -      +
     72L  GLY*     1.3    57.2    +      -       -      +
     74L  ALA*     3.7     4.0    -      -       -      -
     75L  LEU*     2.7    31.9    +      -       -      +
    103L  LEU*     3.4    11.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 72 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68L  ALA      3.5     3.2    +      -       -      -
     69L  ALA      2.8     8.0    +      -       -      -
     71L  VAL*     1.3    78.8    -      -       -      +
     73L  LYS*     1.3    54.6    +      -       -      +
     75L  LEU*     3.1     2.6    +      -       -      +
     76L  ALA      2.8    31.4    +      -       -      -
    103L  LEU*     3.2    38.1    -      -       -      -
    106L  ALA*     3.6     1.6    -      -       -      -
    107L  ALA*     3.2    14.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 73 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69L  ALA*     2.5    25.0    +      -       +      +
     70L  ALA*     3.7     4.7    -      -       -      +
     72L  GLY*     1.3    68.5    -      -       -      -
     74L  ALA*     1.3    62.8    +      -       -      +
     76L  ALA*     4.8     0.2    -      -       -      +
     77L  ALA*     3.3    23.7    +      -       -      +
    106L  ALA*     3.7    17.6    -      -       +      +
    110L  GLY*     5.0    10.0    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 74 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54L  ALA*     3.3    16.7    -      -       +      +
     55L  SER      5.1     0.7    -      -       -      +
     70L  ALA      2.5    26.5    +      -       -      +
     71L  VAL*     3.7     6.1    -      -       -      +
     73L  LYS*     1.3    73.5    -      -       -      +
     75L  LEU*     1.3    57.2    +      -       -      +
     77L  ALA*     3.9     3.0    -      -       -      +
     78L  ALA*     2.9    27.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 75 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29L  LEU*     3.4    28.5    -      -       +      -
     40L  ALA*     3.0    30.5    -      -       +      +
     42L  ILE*     5.2     6.3    -      -       +      -
     52L  ALA*     4.8     1.8    -      -       +      -
     53L  ALA*     3.2    14.6    -      -       -      +
     54L  ALA*     2.8    39.9    -      -       +      +
     71L  VAL      2.7    19.5    +      -       -      +
     72L  GLY      3.1     4.4    +      -       -      +
     74L  ALA*     1.3    71.5    -      -       -      +
     76L  ALA*     1.3    59.2    +      -       -      +
     77L  ALA      3.1     2.0    -      -       -      -
     78L  ALA*     2.4    34.7    +      -       +      +
     79L  ALA*     3.2     4.4    +      -       +      +
    103L  LEU*     3.4    11.4    -      -       +      -
    107L  ALA*     4.7     2.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 76 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72L  GLY      2.8    10.3    +      -       -      +
     73L  LYS      4.8     0.2    -      -       -      +
     75L  LEU*     1.3    74.9    -      -       -      +
     77L  ALA*     1.3    62.5    +      -       -      +
     79L  ALA*     3.6    12.6    +      -       -      +
     80L  ALA*     3.8     6.1    +      -       -      +
    107L  ALA*     3.2    31.3    -      -       +      +
    110L  GLY*     3.2     8.1    -      -       -      -
    111L  GLY*     3.1    36.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 77 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73L  LYS      3.3    19.6    +      -       -      +
     74L  ALA*     3.9     3.1    -      -       -      +
     75L  LEU      3.1     0.6    -      -       -      -
     76L  ALA*     1.3    78.6    -      -       -      +
     78L  ALA*     1.3    58.1    +      -       -      +
     80L  ALA*     2.7    33.0    -      -       -      +
     81L  GLU*     4.1     2.3    +      -       -      +
    110L  GLY      3.6    12.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 78 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52L  ALA*     4.3    15.4    -      -       +      +
     53L  ALA      4.8     3.6    -      -       -      +
     54L  ALA*     4.1     8.7    -      -       +      -
     74L  ALA      2.9    16.8    +      -       -      +
     75L  LEU*     2.4    34.2    +      -       +      +
     77L  ALA*     1.3    69.4    -      -       -      +
     79L  ALA*     1.3    61.2    +      -       -      +
     80L  ALA      2.9     1.6    +      -       -      -
     81L  GLU*     3.3    17.1    +      -       -      +
     82L  LYS*     4.2     4.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 79 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42L  ILE*     5.9     4.9    -      -       +      -
     52L  ALA*     3.9    18.7    -      -       +      +
     75L  LEU*     3.2     5.4    +      -       +      +
     76L  ALA*     3.6     8.0    +      -       -      +
     77L  ALA      3.5     0.4    -      -       -      -
     78L  ALA*     1.3    77.7    -      -       -      +
     80L  ALA*     1.3    49.9    +      -       -      +
     81L  GLU      3.2     0.4    -      -       -      -
     82L  LYS*     2.7    13.4    +      -       -      +
     83L  GLY*     2.4    33.5    +      -       -      -
     84L  ILE*     4.0    32.3    -      -       +      +
     87L  VAL*     6.2     0.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 80 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76L  ALA      3.8     4.0    +      -       -      +
     77L  ALA*     2.7    26.2    +      -       -      +
     78L  ALA      2.9     0.2    +      -       -      -
     79L  ALA*     1.3    71.9    -      -       -      +
     81L  GLU*     1.3    56.6    +      -       +      +
     82L  LYS      2.8    14.9    +      -       -      -
     83L  GLY*     3.2    13.3    +      -       -      +
     84L  ILE      5.4     0.2    -      -       -      +
    111L  GLY      6.2     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 81 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     77L  ALA      5.2     1.6    -      -       -      +
     78L  ALA*     3.3     9.8    +      -       -      +
     79L  ALA      3.2     0.8    -      -       -      -
     80L  ALA*     1.3    78.6    -      -       +      +
     82L  LYS*     1.3    76.2    +      -       +      +
----------------------------------------------------------
 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