Contacts of the helix formed by residues 2449 - 2462 (chain F) in PDB entry 6X34


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 GLY2449 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2448F  LYS*     1.3    77.2    -      -       -      +
   2450F  GLU*     1.3    61.1    +      -       -      +
   2451F  ALA      3.5     1.7    -      -       -      +
   2452F  LEU*     3.7    23.8    +      -       -      +
   2453F  ARG*     4.3     5.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU2450 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2448F  LYS*     3.0    11.0    +      -       +      +
   2449F  GLY*     1.3    78.9    -      -       -      +
   2451F  ALA*     1.3    61.7    +      -       -      +
   2452F  LEU      3.4     0.7    +      -       -      -
   2453F  ARG*     3.7    33.0    +      -       -      +
   2454F  ILE*     4.5     3.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA2451 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2439F  PRO*     3.9    25.1    -      -       +      +
   2444F  ILE*     3.3    29.8    +      -       +      +
   2448F  LYS*     4.7     1.8    -      -       +      +
   2449F  GLY      4.5     1.4    -      -       -      +
   2450F  GLU*     1.3    76.4    -      -       -      +
   2452F  LEU*     1.3    57.8    +      -       -      +
   2453F  ARG      3.2     1.3    -      -       -      -
   2454F  ILE*     3.2    15.2    -      -       +      +
   2455F  ARG*     2.9    30.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU2452 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2444F  ILE      5.2     0.6    +      -       -      -
   2449F  GLY*     3.7    21.9    +      -       -      +
   2450F  GLU      3.2     1.4    -      -       -      -
   2451F  ALA*     1.3    78.3    -      -       -      +
   2453F  ARG*     1.3    58.2    +      -       -      +
   2455F  ARG*     3.5    13.8    -      -       -      +
   2456F  ALA*     2.9    31.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG2453 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174D  VAL*     3.8    16.0    +      -       -      +
    175D  SER*     3.3    27.3    +      -       -      +
    176D  SER*     4.6     3.4    -      -       -      +
    177D  GLU*     3.9    27.2    -      -       +      +
   2449F  GLY      4.3     4.3    +      -       -      +
   2450F  GLU*     3.7    25.1    +      -       -      +
   2451F  ALA      3.2     0.2    -      -       -      -
   2452F  LEU*     1.3    80.1    -      -       -      +
   2454F  ILE*     1.3    72.1    +      -       +      +
   2456F  ALA*     3.3     4.8    +      -       -      +
   2457F  ILE*     2.9    40.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE2454 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2348F  GLU      5.9     0.7    -      -       -      +
   2351F  ALA*     5.7     2.2    -      -       +      -
   2352F  ASN*     5.0    16.8    -      -       +      +
   2355F  VAL*     4.7    26.0    -      -       +      -
   2437F  CYS      5.4     3.4    -      -       -      +
   2439F  PRO*     3.6    26.7    -      -       +      -
   2450F  GLU      4.8     2.7    -      -       -      +
   2451F  ALA*     3.2    19.2    +      -       +      +
   2453F  ARG*     1.3    96.2    -      -       +      +
   2455F  ARG*     1.3    60.3    +      -       -      +
   2457F  ILE*     3.5    10.9    -      -       +      +
   2458F  LEU*     2.9    35.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG2455 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2439F  PRO*     3.7    26.8    +      -       +      +
   2440F  GLU*     5.4     1.6    -      -       -      +
   2445F  GLN*     3.4    31.8    -      -       -      +
   2451F  ALA*     2.9    19.5    +      -       -      +
   2452F  LEU*     3.5    13.3    -      -       -      +
   2454F  ILE*     1.3    78.2    -      -       -      +
   2456F  ALA*     1.3    58.5    +      -       -      +
   2458F  LEU*     3.2    17.8    -      -       +      +
   2459F  ARG*     2.9    31.9    +      -       +      +
   2509F  ARG      5.4     3.2    +      -       -      -
   2510F  VAL*     3.6    23.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA2456 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2452F  LEU      2.9    17.1    +      -       -      +
   2453F  ARG*     3.7     5.2    -      -       -      +
   2455F  ARG*     1.3    77.8    -      -       -      +
   2457F  ILE*     1.3    65.4    +      -       +      +
   2459F  ARG*     4.0     5.1    -      -       -      +
   2460F  SER*     2.9    27.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE2457 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131D  LEU*     3.7    25.1    -      -       +      -
    133D  PHE*     5.8     5.4    -      -       +      -
    176D  SER*     4.2    17.5    -      -       -      +
    177D  GLU*     6.3     0.4    -      -       +      -
    195D  PHE*     3.9    15.5    -      -       +      -
   2355F  VAL*     6.3     2.2    -      -       +      -
   2359F  ILE*     4.1    32.1    -      -       +      -
   2453F  ARG*     2.9    29.7    +      -       +      +
   2454F  ILE*     3.5    12.6    -      -       +      +
   2455F  ARG      3.2     0.4    -      -       -      -
   2456F  ALA*     1.3    77.2    -      -       +      +
   2458F  LEU*     1.3    63.9    +      -       +      +
   2460F  SER*     2.8    20.2    +      -       -      +
   2461F  LEU*     3.1    15.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU2458 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2355F  VAL*     5.4    11.2    -      -       +      -
   2434F  LEU*     4.8    22.6    -      -       +      +
   2437F  CYS      4.6     2.9    -      -       -      +
   2438F  ALA*     3.7    30.3    -      -       +      +
   2439F  PRO*     3.8     7.2    -      -       +      -
   2454F  ILE*     2.9    25.7    +      -       +      +
   2455F  ARG*     3.2    20.6    -      -       +      +
   2457F  ILE*     1.3    79.2    -      -       +      +
   2459F  ARG*     1.3    65.3    +      -       +      +
   2461F  LEU*     3.7    18.6    +      -       -      +
   2462F  VAL*     4.0     6.6    +      -       -      +
   2506F  PHE*     5.2     7.0    -      -       +      -
   2510F  VAL*     3.6    36.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG2459 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2455F  ARG*     2.9    22.8    +      -       +      +
   2456F  ALA*     4.0     5.8    -      -       -      +
   2458F  LEU*     1.3    80.4    -      -       +      +
   2460F  SER*     1.3    63.5    +      -       -      +
   2461F  LEU      3.3     0.2    -      -       -      -
   2462F  VAL      3.4    16.5    -      -       -      +
   2463F  PRO*     3.8     3.6    -      -       -      +
   2506F  PHE*     6.1     0.7    -      -       -      -
   2510F  VAL*     5.7     4.7    -      -       +      +
   2511F  TYR*     3.1    42.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER2460 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130D  LYS*     4.6     8.8    -      -       -      +
    131D  LEU*     3.2    29.2    -      -       -      +
    133D  PHE*     6.2     3.8    -      -       -      -
   2456F  ALA      2.9    15.1    +      -       -      -
   2457F  ILE*     2.8    19.6    +      -       -      +
   2459F  ARG*     1.3    76.8    -      -       -      +
   2461F  LEU*     1.3    65.2    +      -       -      +
   2463F  PRO*     4.3     9.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU2461 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130D  LYS*     5.1     0.9    -      -       +      -
    131D  LEU*     3.5    31.4    -      -       +      -
   2359F  ILE*     5.0     9.2    -      -       +      -
   2365F  PHE*     4.9    28.0    -      -       +      -
   2370F  ARG*     4.5    20.9    -      -       +      -
   2377F  LEU*     5.6     2.3    -      -       -      +
   2434F  LEU*     5.3     8.5    -      -       +      -
   2457F  ILE*     3.1    32.1    +      -       +      +
   2458F  LEU*     3.9    11.0    -      -       -      +
   2459F  ARG      3.3     0.2    -      -       -      -
   2460F  SER*     1.3    83.7    +      -       -      +
   2462F  VAL*     1.3    70.5    +      -       +      +
   2463F  PRO*     3.3     7.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL2462 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2377F  LEU*     4.3    22.7    -      -       +      -
   2431F  ILE*     3.7    29.8    -      -       +      -
   2434F  LEU*     5.8     5.8    -      -       +      -
   2458F  LEU      4.0     3.9    +      -       -      +
   2459F  ARG*     3.4    10.3    +      -       -      +
   2461F  LEU*     1.3    87.7    -      -       +      +
   2463F  PRO*     1.3    68.6    -      -       -      +
   2466F  ASP*     3.6    25.8    -      -       +      -
   2467F  LEU      4.9     2.0    -      -       -      +
   2503F  MET*     6.6     0.2    -      -       +      -
   2506F  PHE*     4.0    23.4    -      -       +      -
   2511F  TYR*     3.9    10.6    -      -       -      -
----------------------------------------------------------
 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