Contacts of the helix formed by residues 39 - 52 (chain Q) in PDB entry 1JJ2


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 39 (chain Q).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38Q  LYS*     1.3    74.9    -      -       -      +
     40Q  ALA*     1.3    63.7    +      -       -      +
     41Q  GLY*     3.1    10.5    -      -       -      +
     42Q  GLU*     2.6    38.9    +      -       +      +
     43Q  ALA*     2.8    22.2    +      -       -      +
    107Q  GLU      2.9    24.7    -      -       -      +
    108Q  ALA*     3.7    17.0    +      -       -      -
    109Q  MET      3.4     5.9    -      -       -      -
    110Q  THR*     4.5     4.5    +      -       -      +
    111Q  ILE*     4.6     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 40 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38Q  LYS      3.9     0.6    +      -       -      -
     39Q  THR*     1.3    72.8    -      -       -      +
     41Q  GLY*     1.3    62.3    +      -       -      +
     43Q  ALA*     3.1     4.4    +      -       -      +
     44Q  VAL*     3.0    27.9    +      -       -      +
     92Q  LEU*     4.3    12.6    -      -       +      +
     96Q  VAL*     3.6    24.0    -      -       +      -
    106Q  GLY      3.6    15.5    -      -       -      +
    107Q  GLU*     3.4     9.4    -      -       -      +
    109Q  MET      2.9    13.3    +      -       -      +
    111Q  ILE*     4.4     4.0    -      -       -      +
    147Q  LEU*     4.1    12.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 41 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39Q  THR*     3.7     4.7    -      -       -      -
     40Q  ALA*     1.3    74.2    -      -       -      +
     42Q  GLU*     1.3    63.7    +      -       -      +
     44Q  VAL*     3.3     9.0    +      -       -      +
     45Q  ASP*     3.1    30.1    +      -       -      +
    107Q  GLU*     2.9    30.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 42 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37Q  GLY      4.7     0.7    -      -       -      +
     38Q  LYS*     3.4    20.2    -      -       +      +
     39Q  THR*     2.6    50.4    +      -       +      +
     41Q  GLY*     1.3    74.7    -      -       -      +
     43Q  ALA*     1.3    57.3    +      -       -      +
     45Q  ASP*     3.2     9.6    +      -       -      +
     46Q  TYR*     2.8    31.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 43 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35Q  ILE*     4.3    13.2    -      -       +      -
     38Q  LYS*     4.4     7.5    -      -       +      +
     39Q  THR      2.8    11.2    +      -       -      +
     40Q  ALA      3.3     9.2    -      -       -      +
     42Q  GLU*     1.3    76.5    -      -       -      +
     44Q  VAL*     1.3    63.0    +      -       -      +
     46Q  TYR*     3.1     8.2    +      -       -      +
     47Q  LEU*     2.9    28.7    +      -       -      +
     92Q  LEU*     3.8    16.4    -      -       +      -
    111Q  ILE*     3.7    24.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 44 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40Q  ALA*     3.0    18.2    +      -       +      +
     41Q  GLY*     3.6     9.4    -      -       -      +
     42Q  GLU      3.3     0.2    -      -       -      -
     43Q  ALA*     1.3    75.6    -      -       -      +
     45Q  ASP*     1.3    64.3    +      -       -      +
     47Q  LEU      3.4     0.2    +      -       -      -
     48Q  GLU*     2.9    48.0    +      -       -      +
     89Q  LEU*     3.8    23.4    -      -       +      +
     92Q  LEU*     4.3    22.0    -      -       +      -
     93Q  GLU*     5.8     0.4    -      -       -      +
     96Q  VAL*     5.7     3.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 45 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41Q  GLY      3.1    16.1    +      -       -      +
     42Q  GLU*     3.6     8.8    -      -       -      +
     44Q  VAL*     1.3    78.8    -      -       -      +
     46Q  TYR*     1.3    63.4    +      -       -      +
     48Q  GLU*     3.3    17.1    +      -       -      +
     49Q  ALA*     3.1    22.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 46 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31Q  ILE*     5.7     0.9    -      -       +      -
     34Q  GLU*     3.2    36.0    +      -       +      +
     35Q  ILE*     3.8    11.4    -      -       +      -
     38Q  LYS*     3.2    27.1    -      -       -      +
     42Q  GLU      2.8    14.5    +      -       -      +
     43Q  ALA*     3.1     8.7    +      -       -      +
     45Q  ASP*     1.3    75.2    -      -       -      +
     47Q  LEU*     1.3    79.9    +      -       +      +
     49Q  ALA*     3.0    17.6    +      -       -      +
     50Q  VAL*     3.0    30.1    +      -       +      +
     55Q  GLN*     3.3    34.1    -      -       +      -
     56Q  PRO      3.0    20.5    +      -       -      -
     57Q  VAL*     3.4    15.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 47 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31Q  ILE*     3.9    20.4    -      -       +      -
     35Q  ILE*     4.4     8.1    -      -       +      -
     43Q  ALA      2.9    22.4    +      -       -      +
     46Q  TYR*     1.3    92.1    -      -       +      +
     48Q  GLU*     1.3    57.8    +      -       -      +
     50Q  VAL*     3.3     5.8    +      -       +      +
     51Q  ILE*     2.9    35.5    +      -       -      +
     57Q  VAL*     5.4     0.2    -      -       +      -
     85Q  SER*     3.7    28.9    -      -       -      +
     88Q  PHE*     3.6    30.3    -      -       +      -
     89Q  LEU*     3.9    18.2    -      -       +      -
     92Q  LEU*     4.0    16.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 48 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44Q  VAL*     2.9    37.1    +      -       -      +
     45Q  ASP*     3.7    19.6    -      -       -      +
     46Q  TYR      3.2     0.2    -      -       -      -
     47Q  LEU*     1.3    78.7    -      -       -      +
     49Q  ALA*     1.3    56.6    +      -       -      +
     51Q  ILE*     3.5     9.7    +      -       -      +
     52Q  GLU*     2.9    28.8    +      -       -      +
     89Q  LEU*     4.2    16.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 49 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45Q  ASP      3.1    12.3    +      -       -      +
     46Q  TYR*     3.0    11.3    +      -       -      +
     48Q  GLU*     1.3    76.3    -      -       -      +
     50Q  VAL*     1.3    59.8    +      -       -      +
     52Q  GLU*     3.3     6.9    +      -       -      -
     53Q  GLY      2.8    22.9    +      -       -      -
     54Q  ASP*     2.8    22.2    +      -       +      +
     55Q  GLN*     3.5    22.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 50 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46Q  TYR*     3.0    31.1    +      -       +      +
     47Q  LEU*     3.4    11.7    -      -       +      +
     49Q  ALA*     1.3    77.8    -      -       -      +
     51Q  ILE*     1.3    64.8    +      -       -      +
     53Q  GLY*     2.9    15.2    +      -       -      -
     55Q  GLN*     3.2    22.0    -      -       +      +
     57Q  VAL*     3.8    25.4    -      -       +      -
     80Q  TYR*     3.6    39.1    -      -       -      +
     81Q  PRO*     4.1     1.3    -      -       +      +
     85Q  SER*     3.7    17.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 51 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47Q  LEU      2.9    21.3    +      -       -      +
     48Q  GLU*     3.7     7.0    -      -       -      +
     50Q  VAL*     1.3    76.3    -      -       -      +
     52Q  GLU*     1.3    61.8    +      -       -      +
     53Q  GLY*     3.4     0.7    +      -       -      -
     82Q  GLU*     4.2    25.0    -      -       +      +
     85Q  SER*     3.9    18.4    -      -       -      -
     86Q  LYS*     3.6    38.1    -      -       +      -
     89Q  LEU*     3.6    28.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 52 (chain Q). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48Q  GLU      2.9    18.9    +      -       -      +
     49Q  ALA*     3.6     4.0    -      -       -      +
     50Q  VAL      3.1     0.2    -      -       -      -
     51Q  ILE*     1.3    78.9    -      -       -      +
     53Q  GLY*     1.3    59.1    +      -       -      +
     54Q  ASP*     3.0    31.0    -      -       -      +
----------------------------------------------------------
 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