Contacts of the helix formed by residues 289 - 296 (chain H) in PDB entry 3LUE


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 ILE 289 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57F  GLU      4.9     0.7    -      -       -      +
     60F  SER*     1.2    83.2    -      -       -      +
     61F  LYS*     2.9    46.2    -      -       +      +
     64F  ILE*     4.1     0.2    -      -       +      -
    166H  TYR*     3.8     4.7    -      -       +      -
    171H  LEU*     3.7    25.6    -      -       +      -
    285H  CYS*     4.4     6.3    -      -       +      -
    286H  ASP*     2.8    29.4    +      -       +      +
    288H  ASP*     1.4    68.8    -      -       -      +
    290H  ARG*     1.3    55.7    +      -       -      +
    291H  LYS      3.2     2.9    -      -       -      -
    292H  ASP*     2.6    37.4    +      -       +      +
    293H  LEU*     3.0    16.8    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 290 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201F  THR*     2.6    39.8    +      -       -      -
    202F  THR*     1.5    55.7    +      -       +      +
    205F  GLU*     3.4    15.1    +      -       -      +
    244F  ASP*     5.6     6.5    -      -       +      -
    270G  GLU*     4.8     1.8    +      -       -      -
    282H  ILE*     3.3    31.3    +      -       +      +
    283H  MET*     2.8    42.2    +      -       -      +
    284H  LYS      4.6     0.2    -      -       -      -
    285H  CYS*     2.8    14.1    +      -       +      +
    286H  ASP      3.5     0.8    +      -       -      -
    287H  VAL      3.9     3.8    +      -       -      +
    288H  ASP      3.7     0.6    -      -       -      -
    289H  ILE*     1.3    75.6    -      -       -      +
    291H  LYS*     1.3    66.2    +      -       -      +
    293H  LEU*     2.9    12.5    +      -       -      +
    294H  TYR*     2.9    34.9    +      -       +      -
    325H  MET*     6.2     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 291 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204F  ALA*     3.0    20.1    -      -       +      +
    205F  GLU*     4.0     4.4    +      -       -      +
    208F  ILE*     5.0     3.4    -      -       -      -
    243F  PRO*     3.4    46.6    -      -       +      +
    287H  VAL      2.5    31.5    +      -       -      -
    288H  ASP*     3.5    19.4    -      -       -      +
    289H  ILE*     3.0     0.4    +      -       -      -
    290H  ARG*     1.3    82.4    -      -       -      +
    292H  ASP*     1.3    70.0    +      -       -      +
    294H  TYR*     3.9     8.1    +      -       -      +
    295H  ALA*     3.5    19.6    +      -       -      +
    325H  MET*     4.8     4.7    -      -       -      -
    326H  LYS      5.2     1.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 292 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57F  GLU*     4.7    14.4    -      -       -      +
     60F  SER*     4.6     1.4    -      -       -      -
    149H  THR*     4.4    24.0    -      -       +      +
    150H  GLY*     5.0     1.1    -      -       -      -
    288H  ASP      4.1     5.4    -      -       -      +
    289H  ILE*     2.6    32.4    +      -       +      +
    291H  LYS*     1.3    79.7    -      -       -      +
    293H  LEU*     1.3    62.3    +      -       -      +
    295H  ALA*     3.3     2.1    +      -       -      -
    296H  ASN*     2.8    38.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 293 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61F  LYS*     5.2     0.2    -      -       -      +
    149H  THR*     5.1     4.7    -      -       +      -
    150H  GLY*     3.0    38.1    -      -       -      +
    151H  ILE*     3.4    10.4    -      -       +      +
    164H  PRO*     3.8    11.4    -      -       +      -
    165H  ILE      4.1     7.4    -      -       -      +
    171H  LEU*     5.9     0.2    -      -       +      -
    282H  ILE*     4.0    24.7    -      -       +      -
    285H  CYS*     3.6    37.9    -      -       +      -
    289H  ILE*     3.0    19.7    +      -       +      +
    290H  ARG*     2.9    12.5    +      -       -      +
    292H  ASP*     1.3    76.5    -      -       -      +
    294H  TYR*     1.4    59.2    +      -       -      +
    296H  ASN      3.3    12.0    +      -       -      +
    297H  THR*     3.2    15.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 294 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244F  ASP*     3.7    15.7    +      -       -      -
    279H  PHE*     3.7    27.4    -      +       -      -
    282H  ILE*     3.4    42.9    -      -       +      +
    283H  MET*     4.6     1.4    -      -       -      -
    290H  ARG*     2.9    38.7    +      -       +      +
    291H  LYS*     4.3     4.5    -      -       -      +
    292H  ASP      3.4     0.2    -      -       -      -
    293H  LEU*     1.4    72.1    -      -       -      +
    295H  ALA*     1.3    57.9    +      -       -      +
    296H  ASN      3.2     1.2    +      -       -      -
    297H  THR*     3.8     7.1    +      -       -      -
    317H  ILE*     4.0    15.7    -      -       +      -
    321H  ALA*     3.7    21.3    -      -       +      -
    322H  PRO*     3.9     2.9    -      -       +      +
    325H  MET*     4.1    24.0    -      -       +      -
    326H  LYS      3.9    13.0    -      -       -      +
    327H  ILE*     3.4    22.3    -      -       +      +
    328H  LYS      3.1    23.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 295 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    291H  LYS      3.5    12.3    +      -       -      +
    292H  ASP*     3.3     5.6    +      -       -      +
    294H  TYR*     1.3    77.9    -      -       -      +
    296H  ASN*     1.3    77.3    +      -       -      +
    326H  LYS*     4.0    24.6    +      -       +      +
    328H  LYS*     3.1    36.2    -      -       -      +
    330H  ILE*     3.7     1.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 296 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44F  MET*     3.5    20.9    -      -       +      +
    147H  ARG*     2.8    34.7    +      -       -      +
    149H  THR*     3.9     8.3    +      -       -      -
    150H  GLY*     3.4     0.3    -      -       -      -
    151H  ILE      2.9    25.8    +      -       -      +
    292H  ASP*     2.8    31.1    +      -       -      +
    293H  LEU      3.3     5.5    -      -       -      +
    294H  TYR      3.2     0.4    -      -       -      -
    295H  ALA*     1.3    92.0    -      -       -      +
    297H  THR*     1.3    60.8    +      -       -      +
    298H  VAL*     3.7     1.3    +      -       -      -
    330H  ILE*     3.7     7.9    -      -       -      -
----------------------------------------------------------
 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