Contacts of the helix formed by residues 67 - 82 (chain O) in PDB entry 2J28


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 ASN 67 (chain O).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A    A      3.2    31.3    +      -       +      +
     51A    G      2.5    38.3    +      -       +      +
     35O  ILE*     5.5     0.5    -      -       -      +
     65O  THR*     4.4     5.2    -      -       -      +
     66O  GLY*     1.3    85.6    +      -       -      +
     68O  LYS*     1.3    80.5    +      -       -      +
     69O  ASP*     3.1    28.1    +      -       -      +
     70O  ALA*     3.0    11.1    +      -       -      +
     71O  ALA*     3.3     9.5    +      -       -      +
    102O  ARG*     3.7    20.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 68 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A    C      3.6    14.2    +      -       -      -
     49A    C      3.1    39.9    +      -       -      +
     50A    A      2.8    23.9    +      -       -      +
     67O  ASN*     1.3    81.8    -      -       -      +
     69O  ASP*     1.3    62.8    +      -       -      +
     71O  ALA*     3.6     3.6    +      -       -      +
     72O  ALA*     3.3    20.4    +      -       -      +
    101O  GLY*     3.5    19.7    -      -       -      +
    102O  ARG*     3.7    21.7    -      -       +      +
    105O  ALA*     4.0     8.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 69 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64O  TYR      5.3     0.7    -      -       -      +
     65O  THR*     3.7    19.1    -      -       +      -
     67O  ASN*     3.1    17.2    +      -       -      +
     68O  LYS*     1.3    78.7    -      -       -      +
     70O  ALA*     1.3    65.3    +      -       -      +
     72O  ALA*     3.2     8.3    +      -       -      +
     73O  ALA*     2.9    23.9    +      -       -      +
     76O  LYS*     5.0     0.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 70 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35O  ILE*     3.9     9.9    -      -       +      +
     53O  THR*     4.2    16.6    -      -       +      +
     65O  THR*     3.4    14.9    -      -       -      +
     66O  GLY*     3.1    32.5    -      -       -      +
     67O  ASN      3.0    10.5    +      -       -      +
     69O  ASP*     1.3    79.5    -      -       -      +
     71O  ALA*     1.3    57.1    +      -       -      +
     73O  ALA*     3.0     3.7    +      -       -      +
     74O  VAL*     2.9    32.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 71 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35O  ILE*     3.5    28.9    -      -       +      +
     67O  ASN      3.3     3.0    +      -       -      -
     68O  LYS      3.8     4.5    -      -       -      +
     70O  ALA*     1.3    79.4    -      -       -      +
     72O  ALA*     1.3    63.5    +      -       -      +
     74O  VAL*     3.0    20.2    -      -       -      +
     75O  GLY      3.0     6.2    +      -       -      -
    102O  ARG*     3.1    42.8    -      -       +      +
    105O  ALA*     3.9     0.4    -      -       +      -
    106O  LEU*     3.5    10.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 72 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68O  LYS      3.3    10.3    +      -       -      +
     69O  ASP*     3.2    12.4    +      -       -      +
     71O  ALA*     1.3    78.6    -      -       -      +
     73O  ALA*     1.3    58.8    +      -       -      +
     76O  LYS*     2.9    36.4    +      -       -      +
    105O  ALA*     4.1    10.8    -      -       +      +
    108O  ASP*     5.9     0.2    -      -       -      +
    109O  ALA*     3.2    19.9    -      -       +      +
    112O  GLU*     4.5     8.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 73 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62O  LEU*     5.1    11.2    -      -       +      -
     65O  THR*     4.3    11.2    -      -       +      -
     69O  ASP      2.9    13.1    +      -       -      +
     70O  ALA*     3.2    12.8    -      -       -      +
     72O  ALA*     1.3    76.7    -      -       -      +
     74O  VAL*     1.3    66.0    +      -       +      +
     75O  GLY      3.4     0.2    +      -       -      -
     76O  LYS*     3.0    21.3    +      -       -      +
     77O  ALA*     3.5    17.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 74 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35O  ILE*     3.3    32.1    -      -       +      -
     36O  TYR      4.8     2.2    -      -       -      +
     37O  ALA*     5.0     0.2    -      -       +      -
     51O  ALA*     5.1     0.9    -      -       +      -
     52O  SER*     4.2    12.3    -      -       -      +
     53O  THR*     3.5    23.1    -      -       -      +
     62O  LEU*     4.8    11.9    -      -       +      -
     70O  ALA      2.9    19.5    +      -       -      +
     71O  ALA      3.0    19.1    -      -       -      +
     73O  ALA*     1.3    71.1    -      -       -      +
     75O  GLY*     1.3    55.8    +      -       -      +
     77O  ALA*     3.0     8.6    +      -       -      +
     78O  VAL*     2.6    46.1    +      -       +      +
    106O  LEU*     3.7    17.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 75 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71O  ALA      3.0    10.5    +      -       -      -
     72O  ALA      3.7     0.2    +      -       -      -
     73O  ALA      3.2     0.4    -      -       -      -
     74O  VAL*     1.3    80.2    -      -       -      +
     76O  LYS*     1.3    61.1    +      -       -      +
     77O  ALA      3.0     1.0    +      -       -      -
     78O  VAL*     3.3     9.2    +      -       -      +
     79O  ALA*     3.3     9.0    +      -       -      +
    106O  LEU*     3.7    17.9    -      -       -      -
    109O  ALA*     3.5    17.5    -      -       -      -
    110O  ALA*     3.3    22.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 76 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69O  ASP      5.0     0.4    +      -       -      -
     72O  ALA*     2.9    35.1    +      -       -      +
     73O  ALA*     3.0    25.5    -      -       -      +
     74O  VAL      3.4     0.2    -      -       -      -
     75O  GLY*     1.3    73.4    -      -       -      +
     77O  ALA*     1.3    60.1    +      -       -      +
     79O  ALA*     3.8     5.8    -      -       -      +
     80O  GLU*     3.7    16.5    +      -       -      +
    109O  ALA      3.8    12.6    +      -       -      +
    110O  ALA*     4.8     0.4    -      -       -      +
    112O  GLU*     3.7    26.7    -      -       +      +
    113O  ALA*     4.6    14.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 77 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51O  ALA*     4.2    12.1    -      -       +      -
     56O  LYS*     5.0     9.6    -      -       -      -
     62O  LEU*     6.6     0.2    -      -       +      -
     73O  ALA      3.5    11.3    +      -       -      +
     74O  VAL*     3.0    13.2    +      -       -      +
     75O  GLY      2.9     1.2    -      -       -      -
     76O  LYS*     1.3    76.6    -      -       -      +
     78O  VAL*     1.3    67.2    +      -       -      +
     79O  ALA      2.9     3.5    +      -       -      -
     80O  GLU*     3.0    15.5    +      -       -      +
     81O  ARG*     3.3    20.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 78 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26O  LEU*     5.6    10.5    -      -       +      -
     37O  ALA*     3.9    23.6    -      -       +      -
     38O  GLN      5.2     1.1    -      -       -      +
     39O  VAL*     5.0    10.2    -      -       +      +
     50O  ALA*     3.5    25.7    -      -       +      +
     51O  ALA*     3.8    22.8    -      -       +      +
     74O  VAL*     2.6    35.3    +      -       +      +
     75O  GLY*     3.8     7.2    -      -       -      +
     77O  ALA*     1.3    72.0    -      -       -      +
     79O  ALA*     1.3    62.9    +      -       -      +
     81O  ARG*     3.6     6.2    +      -       -      +
     82O  ALA*     3.4    16.1    +      -       -      +
    106O  LEU*     4.6     7.4    -      -       +      -
    110O  ALA*     5.5     3.4    -      -       +      -
    115O  LEU*     6.0     4.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 79 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75O  GLY      3.3     9.2    +      -       -      +
     76O  LYS      3.8    10.8    -      -       -      +
     77O  ALA      2.9     1.6    +      -       -      -
     78O  VAL*     1.3    76.2    -      -       -      +
     80O  GLU*     1.3    57.1    +      -       -      +
     82O  ALA*     2.7    35.5    +      -       -      +
    110O  ALA*     3.8    12.7    -      -       +      +
    113O  ALA*     4.4     5.8    -      -       +      -
    114O  GLY*     4.4     7.9    -      -       -      +
    115O  LEU*     3.4    32.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 80 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56O  LYS*     5.2     6.4    +      -       -      -
     76O  LYS      3.7     9.0    +      -       -      +
     77O  ALA*     3.0     9.2    +      -       -      +
     79O  ALA*     1.3    79.1    -      -       -      +
     81O  ARG*     1.3    66.2    +      -       -      +
     82O  ALA      3.3     5.4    +      -       -      +
     83O  LEU*     4.4    16.7    -      -       -      +
    113O  ALA*     5.7     0.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 81 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115A    A      6.2     0.2    -      -       -      -
     49O  VAL*     5.1    12.3    -      -       -      +
     50O  ALA*     3.1    30.8    +      -       -      +
     51O  ALA*     3.7    25.7    -      -       -      +
     55O  GLU*     4.3    18.0    +      -       -      +
     56O  LYS*     2.9    52.1    -      -       -      +
     77O  ALA      3.3    16.5    +      -       -      +
     78O  VAL*     3.8     6.5    -      -       -      +
     79O  ALA      3.1     0.8    -      -       -      -
     80O  GLU*     1.3    81.8    -      -       -      +
     82O  ALA*     1.3    54.2    +      -       -      +
     83O  LEU*     2.8     3.7    +      -       -      +
     84O  GLU*     2.7    28.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 82 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39O  VAL*     5.7    10.3    -      -       +      -
     78O  VAL      3.4     9.2    +      -       -      +
     79O  ALA*     2.7    19.9    +      -       -      +
     80O  GLU      4.2     0.4    -      -       -      -
     81O  ARG*     1.3    74.8    -      -       -      +
     83O  LEU*     1.3    66.1    +      -       -      +
     84O  GLU*     4.5     0.7    -      -       -      -
     87O  ILE*     3.3    39.5    -      -       +      +
    115O  LEU*     5.0    11.0    -      -       +      -
----------------------------------------------------------
 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