Contacts of the helix formed by residues 313 - 326 (chain F) in PDB entry 2JG7


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 VAL 313 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    276F  VAL*     4.4    15.5    -      -       +      -
    277F  PHE      4.5     3.4    -      -       -      +
    278F  GLU*     4.2    18.2    -      -       +      +
    282F  LEU*     4.4    20.0    -      -       +      -
    309F  LEU*     4.8     1.6    -      -       +      -
    310F  HIS*     2.9    29.4    +      -       +      +
    312F  SER*     1.3    89.2    +      -       -      +
    314F  HIS*     1.3    67.5    +      -       -      +
    315F  ASP      3.5     1.6    -      -       -      -
    316F  ALA*     3.3    10.2    +      -       +      +
    317F  VAL*     3.0    40.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 314 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    309F  LEU*     3.6    26.1    -      -       +      +
    310F  HIS      2.9    15.6    +      -       -      +
    311F  GLU*     3.5    16.6    +      -       -      +
    313F  VAL*     1.3    75.4    -      -       -      +
    315F  ASP*     1.3    88.0    +      -       -      +
    318F  VAL*     3.1    42.8    +      -       +      +
    386F  THR*     4.5    14.5    -      -       +      +
    387F  GLY      5.7     1.0    +      -       -      -
    406F  VAL*     3.6    23.8    +      -       +      +
    408F  LYS*     3.7    43.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 315 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    311F  GLU      4.9     2.1    +      -       -      -
    313F  VAL      3.5     0.8    -      -       -      -
    314F  HIS*     1.3   103.3    +      -       -      +
    316F  ALA*     1.3    61.8    +      -       -      +
    318F  VAL*     4.1     4.5    -      -       -      +
    319F  GLU*     3.3    27.1    +      -       -      +
    408F  LYS*     4.9     5.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 316 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    282F  LEU*     5.6     6.1    -      -       +      -
    313F  VAL*     3.3    14.1    +      -       +      +
    315F  ASP*     1.3    80.0    -      -       -      +
    317F  VAL*     1.3    64.5    +      -       +      +
    319F  GLU*     3.6     7.9    +      -       -      +
    320F  ARG*     3.2    33.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 317 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    276F  VAL*     5.1     3.1    -      -       +      -
    282F  LEU*     4.0    24.2    -      -       +      -
    285F  VAL*     4.4    14.1    -      -       +      -
    286F  VAL*     4.6     6.7    -      -       +      -
    309F  LEU*     3.7    26.2    -      -       +      -
    313F  VAL*     3.0    39.5    +      -       +      +
    314F  HIS      3.9     2.5    -      -       -      +
    316F  ALA*     1.3    74.4    -      -       +      +
    318F  VAL*     1.3    59.7    +      -       -      +
    320F  ARG*     3.1     9.8    +      -       -      +
    321F  ILE*     2.8    51.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 318 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    307F  LEU*     5.7     0.2    -      -       +      -
    309F  LEU*     3.6    17.5    -      -       +      -
    314F  HIS*     3.1    33.2    +      -       +      +
    315F  ASP*     4.1     5.6    -      -       -      +
    317F  VAL*     1.3    75.1    -      -       -      +
    319F  GLU*     1.3    58.4    +      -       -      +
    321F  ILE*     3.3     8.6    +      -       -      +
    322F  ALA*     2.8    27.2    +      -       -      +
    367F  VAL*     4.0    33.2    -      -       +      -
    384F  ILE*     4.8     7.4    -      -       +      +
    386F  THR*     4.1     6.5    -      -       +      -
    406F  VAL*     3.8    20.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 319 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    315F  ASP      3.3    18.7    +      -       -      +
    316F  ALA*     3.7     7.4    -      -       -      +
    317F  VAL      3.2     0.6    -      -       -      -
    318F  VAL*     1.3    79.6    -      -       -      +
    320F  ARG*     1.3    59.0    +      -       +      +
    322F  ALA*     3.3     9.2    +      -       +      +
    323F  LYS*     2.9    53.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 320 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    509E  PHE*     4.9    17.3    +      -       -      +
    282F  LEU*     3.4    42.6    +      -       -      +
    283F  ASN*     3.0    28.9    +      -       -      +
    286F  VAL*     3.8    31.1    -      -       +      +
    316F  ALA*     3.2    21.2    +      -       -      +
    317F  VAL*     3.1     9.4    +      -       -      +
    319F  GLU*     1.3    73.8    -      -       +      +
    321F  ILE*     1.3    66.1    +      -       -      +
    323F  LYS*     3.3    15.9    +      -       +      +
    324F  ALA*     3.1    21.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 321 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    286F  VAL*     4.4    17.9    -      -       +      +
    289F  ALA*     3.8    19.7    -      -       +      -
    290F  VAL*     4.0     9.6    -      -       +      +
    307F  LEU*     3.5    32.1    -      -       +      -
    317F  VAL*     2.8    35.1    +      -       +      +
    318F  VAL*     3.7     6.7    -      -       -      +
    320F  ARG*     1.3    74.8    -      -       -      +
    322F  ALA*     1.3    58.1    +      -       -      +
    324F  ALA*     3.2     4.9    +      -       -      +
    325F  TYR*     2.9    52.3    +      -       +      -
    384F  ILE*     3.7    11.0    -      -       +      -
    404F  LEU*     5.0     7.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 322 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    318F  VAL      2.8    17.0    +      -       -      +
    319F  GLU*     3.4    10.8    -      -       +      +
    320F  ARG      3.2     0.2    -      -       -      -
    321F  ILE*     1.3    77.6    -      -       -      +
    323F  LYS*     1.3    61.2    +      -       -      +
    325F  TYR*     3.3    13.7    +      -       -      +
    326F  LYS*     3.4    20.1    +      -       +      +
    367F  VAL*     3.9    25.1    -      -       +      +
    368F  CYS*     5.1     5.4    -      -       +      +
    384F  ILE*     4.2     9.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 323 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    508E  LYS      6.1     0.2    -      -       -      +
    319F  GLU*     2.9    40.5    +      -       +      +
    320F  ARG*     3.3    18.8    +      -       +      +
    322F  ALA*     1.3    75.7    -      -       -      +
    324F  ALA*     1.3    61.2    +      -       -      +
    326F  LYS*     3.6    27.7    +      -       +      +
    327F  GLN*     3.5    18.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 324 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    507E  ILE*     4.1    15.6    -      -       +      +
    508E  LYS      5.3     0.7    -      -       -      -
    509E  PHE*     3.7    23.8    -      -       +      -
    290F  VAL*     3.6    24.9    -      -       +      -
    320F  ARG      3.1    11.7    +      -       -      +
    321F  ILE*     3.4     8.7    -      -       -      +
    323F  LYS*     1.3    75.4    -      -       -      +
    325F  TYR*     1.3    66.0    +      -       -      +
    326F  LYS      3.1     0.4    -      -       -      -
    327F  GLN*     2.9    17.1    +      -       -      +
    328F  VAL*     3.4    13.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 325 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290F  VAL*     4.5    17.9    -      -       +      -
    293F  SER*     3.4    26.4    -      -       -      -
    294F  VAL*     3.7    15.1    -      -       +      +
    321F  ILE*     2.9    42.6    +      -       +      +
    322F  ALA*     3.3    12.7    +      -       -      +
    324F  ALA*     1.3    75.1    -      -       -      +
    326F  LYS*     1.3    62.4    +      -       +      +
    328F  VAL*     3.2    23.8    +      -       -      +
    330F  ILE*     6.1     0.7    -      -       -      +
    368F  CYS*     3.8    15.0    -      -       +      -
    382F  PRO*     3.5    51.2    -      -       +      +
    383F  THR      4.1     2.0    +      -       -      -
    384F  ILE*     3.7    19.3    -      -       +      +
    402F  PRO      5.8     0.5    +      -       -      -
    404F  LEU*     4.0    12.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 326 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322F  ALA*     3.4    15.1    +      -       +      +
    323F  LYS*     3.6    21.5    -      -       +      +
    324F  ALA      3.1     0.6    -      -       -      -
    325F  TYR*     1.3    78.1    -      -       -      +
    327F  GLN*     1.3    62.2    +      -       +      +
    328F  VAL      3.4     3.3    +      -       -      +
    368F  CYS*     6.5     1.3    -      -       +      -
----------------------------------------------------------
 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