Contacts of the helix formed by residues 308 - 321 (chain F) 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 GLY 308 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219F  VAL*     3.8    17.9    -      -       -      +
    307F  PRO*     1.4    70.0    -      -       -      +
    309F  ILE*     1.4    62.6    +      -       -      +
    310F  ALA      3.4     2.4    +      -       -      -
    311F  ASP*     3.5    17.9    +      -       -      +
    312F  ARG*     2.9    25.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 309 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153F  MET*     5.3     9.0    -      -       +      -
    219F  VAL*     4.0    15.9    -      -       +      +
    261F  LEU*     4.4    17.3    -      -       +      -
    262F  PHE*     4.3    19.1    -      -       +      -
    274F  ILE*     5.5     1.1    -      -       +      -
    299F  LEU*     3.8    16.6    -      -       +      -
    303F  THR      4.1    19.5    -      -       -      +
    304F  THR*     3.2    29.8    -      -       -      +
    306F  TYR*     3.1    23.0    +      -       +      +
    307F  PRO      3.5     1.2    +      -       -      -
    308F  GLY*     1.4    75.5    -      -       -      +
    310F  ALA*     1.3    60.1    +      -       -      +
    312F  ARG*     4.6     0.2    -      -       -      -
    313F  MET*     2.8    39.7    +      -       +      +
    335F  ARG*     4.3     5.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 310 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    299F  LEU*     4.4     2.7    -      -       -      -
    308F  GLY      3.4     0.6    -      -       -      -
    309F  ILE*     1.3    83.6    -      -       +      +
    311F  ASP*     1.3    59.6    +      -       -      +
    313F  MET*     3.3     1.9    +      -       -      +
    314F  GLN*     2.9    30.0    +      -       -      +
    329F  ILE*     3.6    24.1    -      -       +      +
    331F  ALA*     4.3    19.3    -      -       +      -
    335F  ARG*     6.0     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 311 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221F  LEU*     4.0    19.5    -      -       +      +
    308F  GLY*     3.5    17.9    +      -       -      +
    310F  ALA*     1.3    80.1    -      -       -      +
    312F  ARG*     1.3    59.2    +      -       -      +
    314F  GLN*     3.5     8.6    -      -       -      +
    315F  LYS*     2.9    30.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 312 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    219F  VAL*     3.9    14.8    -      -       +      +
    220F  ALA      2.6    37.3    +      -       -      +
    221F  LEU*     3.7    25.3    +      -       +      +
    223F  PHE*     4.7     5.2    -      -       -      +
    259F  GLU*     2.8    29.7    +      -       -      -
    262F  PHE*     3.5    39.8    -      -       +      +
    263F  GLN*     4.8     5.3    -      -       -      +
    275F  HIS*     5.6     0.6    -      -       -      -
    308F  GLY      2.9    17.3    +      -       -      +
    309F  ILE      4.1     1.8    -      -       -      +
    311F  ASP*     1.3    75.9    -      -       -      +
    313F  MET*     1.3    62.5    +      -       -      +
    315F  LYS*     4.0     7.3    -      -       -      +
    316F  GLU*     2.7    65.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 313 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    153F  MET*     3.8    39.5    -      -       +      -
    262F  PHE*     4.0    15.3    -      -       +      -
    274F  ILE*     4.0    16.8    -      -       +      +
    275F  HIS*     4.1    11.9    -      -       -      -
    278F  THR*     3.9    13.0    -      -       +      +
    297F  THR*     5.2     0.9    -      -       +      -
    299F  LEU*     3.9    16.4    -      -       +      -
    309F  ILE*     2.8    28.9    +      -       +      +
    310F  ALA*     3.6     4.9    -      -       -      +
    312F  ARG*     1.3    74.3    -      -       -      +
    314F  GLN*     1.3    62.9    +      -       -      +
    316F  GLU*     3.0     5.6    +      -       -      +
    317F  ILE*     2.9    43.7    +      -       +      +
    329F  ILE*     4.3    14.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 314 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    310F  ALA      2.9    18.0    +      -       -      +
    311F  ASP*     3.5     9.0    -      -       -      +
    313F  MET*     1.3    73.4    -      -       -      +
    315F  LYS*     1.3    63.5    +      -       -      +
    317F  ILE*     3.0     0.9    +      -       -      +
    318F  THR*     2.7    52.7    +      -       -      +
    327F  ILE*     3.0    34.1    +      -       -      +
    328F  LYS*     4.6     0.4    -      -       -      +
    329F  ILE*     3.9    24.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 315 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221F  LEU*     2.9    43.8    +      -       +      +
    222F  ASP*     4.6    14.8    +      -       -      +
    311F  ASP      2.9    20.8    +      -       -      +
    312F  ARG*     3.8     7.3    -      -       -      +
    314F  GLN*     1.3    73.1    -      -       -      +
    316F  GLU*     1.3    89.3    +      -       +      +
    318F  THR*     3.7     7.4    -      -       -      +
    319F  ALA*     3.3    20.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 316 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262F  PHE*     4.7     1.3    -      -       +      -
    275F  HIS*     3.7    39.7    +      -       +      -
    312F  ARG*     2.7    59.6    +      -       +      +
    313F  MET      3.0     4.2    +      -       -      +
    315F  LYS*     1.3    97.1    +      -       -      +
    317F  ILE*     1.3    64.7    +      -       -      +
    319F  ALA*     3.4    15.5    +      -       -      +
    320F  LEU*     3.2    21.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 317 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    275F  HIS*     4.1    15.9    -      -       -      +
    278F  THR*     3.6    29.8    -      -       +      -
    279F  PHE*     5.4     5.6    -      -       +      +
    282F  ILE*     5.8     0.4    -      -       +      -
    294F  TYR*     4.0    18.6    -      -       +      -
    297F  THR*     4.2     6.7    -      -       +      +
    313F  MET*     2.9    36.8    +      -       -      +
    314F  GLN      3.9     1.6    -      -       -      +
    316F  GLU*     1.3    75.8    -      -       -      +
    318F  THR*     1.3    58.9    +      -       -      +
    319F  ALA      3.2     0.3    +      -       -      -
    320F  LEU*     3.3     6.7    +      -       +      +
    321F  ALA*     2.9    27.9    +      -       -      +
    327F  ILE*     3.6    28.5    -      -       +      -
    329F  ILE*     4.1    15.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 318 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    314F  GLN*     2.7    41.0    +      -       -      +
    315F  LYS*     3.7     7.9    -      -       -      -
    317F  ILE*     1.3    77.6    -      -       -      +
    319F  ALA*     1.3    60.7    +      -       -      +
    321F  ALA*     3.9    11.0    -      -       -      +
    327F  ILE*     3.6    18.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 319 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    315F  LYS*     3.3    13.6    +      -       +      +
    316F  GLU*     3.7    15.3    -      -       -      +
    317F  ILE      3.2     1.2    -      -       -      -
    318F  THR*     1.3    77.7    -      -       -      +
    320F  LEU*     1.3    63.4    +      -       +      +
    321F  ALA      4.2     2.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 320 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    246D  GLN*     6.0     0.3    -      -       -      +
    275F  HIS*     3.9    38.1    -      -       +      +
    276F  GLU*     3.5    22.0    -      -       -      +
    279F  PHE*     3.4    48.1    -      -       +      -
    316F  GLU      3.2    21.3    +      -       -      +
    317F  ILE*     3.3     5.8    +      -       -      +
    319F  ALA*     1.3    76.5    -      -       +      +
    321F  ALA*     1.3    63.4    +      -       -      +
    322F  PRO*     3.8     1.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 321 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    244D  ASP      3.8     5.4    -      -       -      +
    279F  PHE*     4.4     0.6    -      -       -      -
    294F  TYR*     3.7    19.5    -      -       +      -
    317F  ILE      2.9    18.7    +      -       -      +
    318F  THR      3.9     9.9    -      -       -      +
    319F  ALA      3.4     3.6    -      -       -      +
    320F  LEU*     1.3    78.1    -      -       -      +
    322F  PRO*     1.4    78.7    -      -       +      +
    323F  SER*     3.5     2.9    +      -       -      -
    325F  MET*     4.2     0.7    -      -       +      -
    327F  ILE*     3.4    23.6    -      -       +      -
----------------------------------------------------------
 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