Contacts of the helix formed by residues 323 - 339 (chain A) in PDB entry 1JNK


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 GLU 323 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322A  SER*     1.3    74.6    +      -       -      +
    324A  HIS*     1.3    63.8    +      -       -      +
    326A  LYS*     3.2    34.0    +      -       -      +
    327A  LEU*     3.3    22.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 324 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163A  HIS*     5.2     6.1    -      -       +      -
    164A  GLU*     6.2     1.8    -      -       +      -
    322A  SER*     2.9    10.8    +      -       -      +
    323A  GLU*     1.3    80.5    -      -       -      +
    325A  ASN*     1.3    70.1    +      -       -      +
    327A  LEU*     3.6     5.1    +      -       -      +
    328A  LYS*     3.1    64.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 325 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163A  HIS*     3.6    19.5    +      -       -      +
    319A  PRO*     2.8    36.3    +      -       -      +
    320A  ALA*     4.1     1.3    -      -       -      -
    321A  ASP*     2.9    26.5    +      -       -      +
    322A  SER*     3.5    14.6    +      -       -      +
    323A  GLU      3.3     0.4    -      -       -      -
    324A  HIS*     1.3    93.5    +      -       -      +
    326A  LYS*     1.3    59.0    +      -       -      +
    328A  LYS      3.9     0.9    -      -       -      -
    329A  ALA*     3.0    30.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 326 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320A  ALA*     2.9    42.7    +      -       +      +
    321A  ASP      3.5    13.1    +      -       -      -
    322A  SER      3.1    15.6    +      -       -      +
    323A  GLU*     3.2    34.1    -      -       -      +
    324A  HIS      3.3     0.2    -      -       -      -
    325A  ASN*     1.3    74.0    -      -       -      +
    327A  LEU*     1.3    66.5    +      -       -      +
    329A  ALA*     3.5     4.3    +      -       -      +
    330A  SER*     3.4    19.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 327 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    323A  GLU      3.3    12.7    +      -       -      +
    324A  HIS*     3.9     4.9    -      -       -      +
    326A  LYS*     1.3    80.0    -      -       -      +
    328A  LYS*     1.3    66.0    +      -       +      +
    330A  SER*     2.9    32.4    +      -       -      +
    331A  GLN*     3.0    31.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 328 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163A  HIS*     3.6    29.6    -      -       +      +
    324A  HIS*     3.1    50.7    +      -       +      +
    325A  ASN      4.1     0.2    -      -       -      +
    327A  LEU*     1.3    79.6    -      -       +      +
    329A  ALA*     1.3    56.5    +      -       -      +
    331A  GLN*     2.8    29.8    +      -       -      +
    332A  ALA*     2.8    32.2    +      -       -      +
    357A  PRO      3.4    17.4    +      -       -      -
    358A  TYR*     3.7    18.8    +      -       +      +
    361A  VAL*     3.9    17.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 329 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163A  HIS*     3.9     9.4    +      -       -      +
    315A  ASP*     5.2     7.6    -      -       -      +
    318A  PHE*     3.6    32.9    -      -       +      -
    319A  PRO      4.5     1.1    -      -       -      +
    320A  ALA*     4.6     7.2    -      -       +      -
    325A  ASN      3.0    21.1    +      -       -      +
    326A  LYS*     3.7     7.6    -      -       -      +
    327A  LEU      3.2     0.4    -      -       -      -
    328A  LYS*     1.3    76.7    -      -       -      +
    330A  SER*     1.3    60.3    +      -       -      +
    332A  ALA*     4.1     1.5    -      -       -      +
    333A  ARG*     3.4    29.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 330 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    326A  LYS      3.4     8.9    +      -       -      -
    327A  LEU*     2.9    22.3    +      -       -      +
    329A  ALA*     1.3    75.3    -      -       -      +
    331A  GLN*     1.3    62.4    +      -       -      +
    333A  ARG*     3.3    16.3    +      -       -      +
    334A  ASP*     2.8    35.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 331 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    327A  LEU*     3.2    34.5    -      -       +      +
    328A  LYS*     2.8    43.8    +      -       -      +
    330A  SER*     1.3    82.2    +      -       -      +
    332A  ALA*     1.3    64.1    +      -       -      +
    334A  ASP*     3.1     6.8    +      -       -      +
    335A  LEU*     3.0    18.4    +      -       -      +
    356A  HIS*     3.1    15.6    +      -       -      +
    357A  PRO*     3.4    34.1    -      -       +      +
    358A  TYR*     3.8    12.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 332 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163A  HIS*     4.7     0.4    -      -       +      -
    166A  MET*     5.8     0.7    -      -       -      -
    253A  MET*     3.7    18.6    -      -       +      +
    318A  PHE*     3.6    26.0    -      -       +      -
    328A  LYS      2.8    20.8    +      -       -      +
    329A  ALA*     4.2     1.1    -      -       -      +
    331A  GLN*     1.3    71.5    -      -       -      +
    333A  ARG*     1.3    58.2    +      -       -      +
    335A  LEU*     3.1     6.2    +      -       -      +
    336A  LEU*     3.0    27.0    +      -       -      +
    358A  TYR*     3.8    27.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 333 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    309A  PHE*     4.1    19.1    -      -       +      +
    310A  PRO*     3.7    33.4    -      -       -      +
    313A  PHE*     2.8    30.2    +      -       +      +
    314A  PRO      3.3     2.6    +      -       -      -
    315A  ASP*     3.1    49.5    +      -       -      +
    318A  PHE*     3.8    16.6    -      -       +      +
    329A  ALA*     3.4    24.4    +      -       -      +
    330A  SER*     3.3    15.5    +      -       -      +
    332A  ALA*     1.3    78.5    -      -       -      +
    334A  ASP*     1.3    57.6    +      -       -      +
    336A  LEU*     3.5     7.7    +      -       -      +
    337A  SER*     3.0    27.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 334 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    330A  SER      2.8    13.4    +      -       -      +
    331A  GLN*     3.1    13.4    +      -       -      +
    333A  ARG*     1.3    75.0    -      -       -      +
    335A  LEU*     1.3    61.7    +      -       -      +
    337A  SER*     2.8    25.2    +      -       -      -
    338A  LYS*     3.2    35.5    +      -       -      +
    356A  HIS*     3.0    21.1    -      -       +      -
    357A  PRO*     5.5     1.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 335 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170A  LEU*     5.4     1.3    -      -       +      -
    253A  MET*     3.8    23.3    -      -       +      -
    331A  GLN      3.0     7.1    +      -       -      +
    332A  ALA*     3.1     9.2    +      -       -      +
    334A  ASP*     1.3    72.8    -      -       -      +
    336A  LEU*     1.3    68.9    +      -       -      +
    338A  LYS*     2.8    14.5    +      -       -      +
    339A  MET*     3.0    46.1    +      -       +      +
    348A  ILE*     4.7     6.3    -      -       +      -
    353A  ALA*     4.2    13.0    -      -       +      +
    356A  HIS*     3.6    38.5    +      -       +      +
    358A  TYR*     4.3     4.3    -      -       +      -
    359A  ILE*     3.7    32.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 336 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250A  GLY*     3.5    26.7    -      -       -      +
    253A  MET*     3.7    26.0    -      -       +      -
    254A  GLY*     3.6    17.5    -      -       -      +
    257A  VAL*     4.6     3.1    -      -       +      -
    309A  PHE*     4.1    10.3    -      -       +      -
    313A  PHE*     3.5    33.0    -      -       +      -
    318A  PHE*     4.3    18.8    -      -       +      -
    332A  ALA      3.0    10.5    +      -       -      +
    333A  ARG*     3.6    10.1    -      -       -      +
    335A  LEU*     1.3    75.1    -      -       -      +
    337A  SER*     1.3    57.3    +      -       -      +
    339A  MET*     2.8    22.2    +      -       -      +
    340A  LEU*     2.9    29.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 337 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    309A  PHE*     3.6    42.3    -      -       -      -
    333A  ARG      3.0    15.1    +      -       -      -
    334A  ASP*     2.8    28.2    +      -       -      -
    335A  LEU      3.2     0.4    -      -       -      -
    336A  LEU*     1.3    75.1    -      -       -      +
    338A  LYS*     1.3    60.2    +      -       -      +
    340A  LEU      4.5     0.2    -      -       -      -
    341A  VAL*     3.3    18.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 338 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    334A  ASP*     3.2    41.5    +      -       -      +
    335A  LEU*     2.8    10.5    +      -       -      +
    337A  SER*     1.3    82.8    +      -       -      +
    339A  MET*     1.3    57.5    +      -       -      +
    341A  VAL*     3.7    10.8    -      -       -      +
    346A  LYS      4.9     0.4    -      -       -      +
    347A  ARG*     3.9     0.3    -      -       -      +
    348A  ILE*     3.0    57.7    +      -       +      +
    356A  HIS*     4.4    10.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 339 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170A  LEU*     5.2     0.2    -      -       +      -
    174A  LEU*     4.1     9.0    -      -       +      -
    246A  ILE*     3.5    34.5    -      -       +      +
    247A  TRP*     3.9     8.7    -      -       -      -
    249A  VAL*     3.5    34.1    -      -       +      -
    250A  GLY*     3.9    15.7    -      -       -      -
    253A  MET*     4.7     7.2    -      -       -      +
    335A  LEU*     3.0    35.0    +      -       +      +
    336A  LEU*     2.8     3.9    +      -       -      +
    338A  LYS*     1.3    79.3    -      -       -      +
    340A  LEU*     1.3    58.7    +      -       -      +
    341A  VAL      3.0    10.5    +      -       -      -
    347A  ARG*     3.4    20.6    +      -       -      -
    348A  ILE*     3.8     7.2    -      -       +      -
    353A  ALA*     3.9    26.2    -      -       +      -
----------------------------------------------------------
 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