Contacts of the helix formed by residues 6 - 20 (chain C) in PDB entry 1JLH


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 ASP 6 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2C  ALA      3.3     8.0    +      -       -      +
      3C  LEU      3.0    17.0    +      -       -      +
      4C  THR      3.2     0.2    -      -       -      -
      5C  ARG*     1.3    76.8    -      -       -      +
      7C  PRO*     1.3    70.6    -      -       -      +
      8C  GLN*     2.7    35.0    +      -       -      +
      9C  PHE*     2.9    14.5    +      -       +      +
     10C  GLN*     3.0    26.3    +      -       -      +
     70C  LEU*     4.0     9.3    -      -       -      +
     73C  SER*     2.6    28.3    +      -       -      +
     74C  ARG*     3.7    17.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 7 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5C  ARG      3.5     7.6    -      -       -      +
      6C  ASP*     1.3    92.9    -      -       -      +
      8C  GLN*     1.3    68.5    +      -       -      +
     10C  GLN*     3.3    14.3    +      -       +      +
     11C  LYS*     2.9    27.8    +      -       -      +
     73C  SER*     4.5     5.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 8 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6C  ASP*     2.7    18.8    +      -       -      +
      7C  PRO*     1.3    80.1    -      -       +      +
      9C  PHE*     1.3    63.4    +      -       -      +
     11C  LYS*     3.1    25.5    +      -       -      +
     12C  LEU*     2.9    25.7    +      -       -      +
     66C  MET*     4.9     4.2    -      -       -      +
     69C  ASP*     3.7    27.5    -      -       +      +
     70C  LEU*     4.0    20.0    -      -       +      +
     73C  SER*     3.6    21.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 9 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3C  LEU*     3.2    64.2    -      -       +      +
      4C  THR*     3.7    22.9    -      -       +      -
      6C  ASP*     2.9    16.0    +      -       +      +
      8C  GLN*     1.3    76.8    -      -       -      +
     10C  GLN*     1.3    58.7    +      -       +      +
     12C  LEU*     3.1    11.1    +      -       +      +
     13C  GLN*     2.9    63.1    +      -       -      +
     70C  LEU*     4.3    17.2    -      -       +      +
    324C  ILE*     5.0     4.5    -      -       +      -
    328C  ASN*     3.8    26.9    -      -       +      -
    329C  CYS*     5.1     6.1    -      -       -      -
    372C  HIS*     5.4     4.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 10 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4C  THR      3.3    22.6    -      -       -      +
      5C  ARG*     3.9    12.8    -      -       -      +
      6C  ASP      3.0    14.9    +      -       -      +
      7C  PRO*     3.6    11.1    +      -       -      +
      9C  PHE*     1.3    78.6    -      -       +      +
     11C  LYS*     1.3    58.3    +      -       -      +
     13C  GLN*     3.2     9.2    +      -       -      +
     14C  GLN*     2.8    32.2    +      -       -      +
     17C  ARG*     4.8     1.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 11 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7C  PRO      2.9    13.8    +      -       -      +
      8C  GLN*     3.1    30.6    +      -       -      +
     10C  GLN*     1.3    77.8    -      -       -      +
     12C  LEU*     1.3    56.3    +      -       -      +
     14C  GLN*     3.4     6.7    +      -       -      +
     15C  TRP*     2.9    28.4    +      -       -      +
     65C  ARG*     3.4    25.9    -      -       -      +
     66C  MET*     3.8    26.7    -      -       +      +
     69C  ASP*     4.8     4.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 12 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8C  GLN      2.9    10.9    +      -       -      +
      9C  PHE*     3.3    11.9    -      -       +      +
     11C  LYS*     1.3    77.4    -      -       -      +
     13C  GLN*     1.3    56.7    +      -       -      +
     15C  TRP*     3.2     5.9    +      -       -      +
     16C  TYR*     2.8    30.0    +      -       -      +
     63C  VAL*     4.2     5.8    -      -       +      +
     66C  MET*     3.6    41.1    -      -       +      +
     67C  LEU*     3.4    30.3    -      -       +      -
     70C  LEU*     3.7    28.5    -      -       +      -
    324C  ILE*     5.6     2.0    -      -       +      -
    325C  TRP*     3.6    34.9    -      -       +      -
    329C  CYS*     4.7     5.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 13 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4C  THR*     5.8     1.0    -      -       -      +
      9C  PHE*     2.9    43.7    +      -       -      +
     10C  GLN*     3.5    12.2    -      -       -      +
     12C  LEU*     1.3    78.2    -      -       -      +
     14C  GLN*     1.3    63.3    +      -       -      +
     16C  TYR*     3.2    11.2    +      -       +      +
     17C  ARG*     3.0    53.9    +      -       +      +
    328C  ASN      3.0    27.5    +      -       -      -
    329C  CYS*     4.4    10.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 14 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10C  GLN      2.8    20.1    +      -       -      +
     11C  LYS*     3.7     7.0    -      -       -      +
     13C  GLN*     1.3    69.9    -      -       -      +
     15C  TRP*     1.3    66.9    +      -       -      +
     17C  ARG*     2.6    40.8    +      -       -      +
     18C  GLU*     2.5    73.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 15 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11C  LYS*     2.9    18.5    +      -       +      +
     12C  LEU      3.4     4.7    -      -       -      +
     14C  GLN*     1.3    76.0    -      -       -      +
     16C  TYR*     1.3    62.2    +      -       -      +
     18C  GLU*     3.2     3.9    +      -       -      -
     19C  HIS*     2.9    77.1    +      +       +      -
     22C  GLU*     4.8     6.1    -      -       -      -
     23C  LEU*     3.7    31.0    -      -       +      -
     60C  THR*     4.0    11.9    -      -       +      -
     62C  ASP*     4.5    12.9    +      -       +      +
     63C  VAL*     3.5    26.2    -      -       +      -
     66C  MET*     3.4    32.6    -      -       +      +
    325C  TRP*     3.9    19.3    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 16 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12C  LEU      2.8    13.2    +      -       -      +
     13C  GLN*     3.3    14.4    -      -       +      +
     14C  GLN      3.2     0.2    -      -       -      -
     15C  TRP*     1.3    85.3    -      -       -      +
     17C  ARG*     1.3    72.0    +      -       +      +
     20C  ARG*     2.8    79.6    +      -       +      +
     23C  LEU*     5.6     0.2    -      -       +      -
    325C  TRP*     4.0    14.4    -      +       +      -
    329C  CYS*     3.2    39.3    +      -       +      -
    330C  PHE*     3.5    45.9    +      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 17 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10C  GLN      4.8     1.0    +      -       -      -
     13C  GLN*     3.0    46.3    +      -       +      +
     14C  GLN*     2.6    45.1    +      -       -      +
     16C  TYR*     1.3    90.4    -      -       +      +
     18C  GLU*     1.3    61.1    +      -       -      +
     20C  ARG*     4.5     4.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 18 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14C  GLN*     2.5    49.0    +      -       -      +
     15C  TRP*     3.2     1.1    +      -       -      -
     17C  ARG*     1.3    80.4    -      -       +      +
     19C  HIS*     1.3    87.2    +      -       +      +
     20C  ARG      3.7     0.2    -      -       -      -
     21C  SER*     5.6     1.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 19 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15C  TRP*     2.9    66.8    +      +       +      +
     16C  TYR      3.8     0.2    -      -       -      -
     18C  GLU*     1.3   100.6    -      -       +      +
     20C  ARG*     1.3    67.7    +      -       -      +
     21C  SER*     3.4     2.7    -      -       -      -
     22C  GLU*     2.8    56.0    +      -       -      +
     23C  LEU*     3.7     6.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 20 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16C  TYR*     2.8    68.1    +      -       +      +
     17C  ARG*     4.5     4.9    +      -       -      +
     18C  GLU      3.7     1.6    -      -       -      -
     19C  HIS*     1.3    71.1    -      -       -      +
     21C  SER*     1.3    55.8    +      -       -      +
     22C  GLU      2.7    11.3    +      -       -      -
     23C  LEU*     3.0    28.5    +      -       -      +
    330C  PHE*     3.5    32.0    +      -       +      -
    400C  MET*     5.0     5.1    -      -       -      -
----------------------------------------------------------
 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