Contacts of the helix formed by residues 2423 - 2437 (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 ILE2423 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2322F  ILE*     4.1    17.7    -      -       +      -
   2324F  TRP*     3.5    36.1    -      -       +      -
   2326F  PRO*     5.1     5.2    -      -       +      -
   2380F  THR*     5.0     8.7    -      -       +      -
   2381F  ILE*     5.2     1.8    -      -       +      -
   2384F  ALA*     4.4    23.6    -      -       +      -
   2422F  ALA*     1.3    87.7    -      -       +      +
   2424F  MET*     1.3    62.6    +      -       -      +
   2426F  PHE*     3.3     1.4    +      -       -      +
   2427F  TYR*     2.9    49.9    +      -       +      -
----------------------------------------------------------
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Residues in contact with MET2424 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2381F  ILE*     4.8     8.5    -      -       +      +
   2384F  ALA*     5.1     3.0    -      -       +      +
   2385F  ILE*     3.8    30.3    -      -       +      -
   2422F  ALA      4.5     1.3    -      -       -      +
   2423F  ILE*     1.3    79.5    -      -       -      +
   2425F  SER*     1.3    58.1    +      -       -      +
   2427F  TYR*     3.4     6.0    +      -       -      +
   2428F  ALA      2.9    25.1    +      -       -      -
   2495F  PHE*     5.5     1.3    -      -       +      -
   2499F  HIS*     3.1    29.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER2425 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2330F  GLU*     5.7     4.7    -      -       -      -
   2422F  ALA*     3.6    22.6    +      -       -      +
   2423F  ILE      3.3     0.8    -      -       -      -
   2424F  MET*     1.3    78.5    -      -       -      +
   2426F  PHE*     1.3    55.9    +      -       -      +
   2428F  ALA*     3.3     3.1    +      -       -      +
   2429F  ALA*     2.9    30.9    +      -       -      +
   2499F  HIS*     3.2    19.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE2426 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2324F  TRP*     3.4    39.9    -      +       +      -
   2325F  ASN      4.9     0.4    -      -       -      -
   2326F  PRO*     4.0     9.4    -      -       +      +
   2329F  GLY*     3.6    37.0    -      -       -      -
   2330F  GLU*     3.9     7.6    -      -       -      +
   2333F  LEU*     3.6    21.5    -      -       +      -
   2364F  CYS      5.0     9.9    -      -       -      -
   2365F  PHE      5.6     0.4    -      -       -      -
   2366F  GLY*     4.9    13.0    -      -       -      -
   2367F  PRO*     5.8     0.2    -      -       +      -
   2422F  ALA      3.0    19.8    +      -       -      +
   2423F  ILE      3.7     2.7    -      -       -      +
   2425F  SER*     1.3    76.8    -      -       -      +
   2427F  TYR*     1.3    67.2    +      +       -      +
   2429F  ALA*     3.3     6.1    +      -       -      +
   2430F  LEU*     2.9    45.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR2427 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2324F  TRP*     4.0    14.7    +      +       -      -
   2366F  GLY*     4.1    19.2    -      -       -      -
   2367F  PRO*     4.2     4.9    -      -       -      +
   2368F  ALA*     3.4    34.8    +      -       +      +
   2369F  LEU*     4.9    14.1    -      -       +      -
   2377F  LEU*     5.1    15.0    -      -       +      -
   2380F  THR*     4.5     9.2    -      -       +      +
   2381F  ILE*     3.6    30.7    -      -       +      -
   2423F  ILE*     2.9    45.6    +      -       +      +
   2424F  MET      3.8     2.5    -      -       -      +
   2426F  PHE*     1.3    84.1    -      +       -      +
   2428F  ALA*     1.3    57.2    +      -       -      +
   2430F  LEU*     3.3    15.6    +      -       +      +
   2431F  ILE*     2.9    31.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA2428 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2424F  MET      2.9    17.9    +      -       -      +
   2425F  SER*     3.7     4.3    -      -       -      +
   2427F  TYR*     1.3    73.6    -      -       -      +
   2429F  ALA*     1.3    59.9    +      -       -      +
   2431F  ILE*     3.1    11.5    -      -       -      +
   2432F  ASP*     2.9    31.6    +      -       -      +
   2498F  ASP      5.5     0.7    -      -       -      +
   2499F  HIS*     3.6    31.6    -      -       +      +
   2502F  SER*     4.2    11.1    -      -       -      -
   2503F  MET*     5.1     3.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA2429 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2330F  GLU*     5.0    10.3    -      -       +      -
   2333F  LEU*     4.7    14.3    -      -       +      +
   2334F  ASP*     4.9    12.1    -      -       -      +
   2337F  ARG*     6.0     0.5    -      -       -      +
   2425F  SER      2.9    17.3    +      -       -      +
   2426F  PHE*     3.7     6.5    -      -       -      +
   2428F  ALA*     1.3    76.3    -      -       -      +
   2430F  LEU*     1.3    58.0    +      -       -      +
   2432F  ASP*     3.7     5.6    -      -       -      +
   2433F  LEU*     2.9    30.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU2430 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2333F  LEU*     4.1    31.6    -      -       +      +
   2358F  LEU*     5.6     3.6    -      -       +      -
   2364F  CYS*     4.9     8.1    -      -       -      +
   2365F  PHE*     4.3    15.9    -      -       +      -
   2366F  GLY*     3.9    26.9    -      -       -      +
   2426F  PHE*     2.9    30.7    +      -       +      +
   2427F  TYR*     3.6    16.2    -      -       +      +
   2428F  ALA      3.3     0.2    -      -       -      -
   2429F  ALA*     1.3    77.7    -      -       -      +
   2431F  ILE*     1.3    57.5    +      -       -      +
   2433F  LEU*     3.3     3.9    +      -       +      +
   2434F  LEU*     2.9    52.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE2431 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2377F  LEU*     6.0     0.9    -      -       +      -
   2427F  TYR      2.9    17.8    +      -       -      +
   2428F  ALA*     3.1    21.3    -      -       -      +
   2430F  LEU*     1.3    75.1    -      -       -      +
   2432F  ASP*     1.3    60.7    +      -       -      +
   2434F  LEU*     4.3     6.7    -      -       +      -
   2435F  GLY      2.9    24.6    +      -       -      -
   2462F  VAL*     3.7    28.0    -      -       +      -
   2502F  SER*     5.0     4.3    -      -       -      +
   2503F  MET*     4.1    27.6    -      -       +      -
   2506F  PHE*     3.5    50.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP2432 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2337F  ARG*     5.3    12.9    -      -       -      +
   2341F  PHE*     5.5     0.2    -      -       -      -
   2428F  ALA      2.9    18.5    +      -       -      +
   2429F  ALA*     3.7     6.5    -      -       -      +
   2431F  ILE*     1.3    78.1    -      -       -      +
   2433F  LEU*     1.3    57.7    +      -       -      +
   2435F  GLY*     3.4     1.8    +      -       -      +
   2436F  ARG*     2.9    29.7    +      -       -      +
   2502F  SER*     4.4    20.6    -      -       -      +
   2505F  LEU*     6.5     1.8    -      -       +      -
   2506F  PHE*     5.4     2.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU2433 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2333F  LEU*     3.3    51.6    -      -       +      +
   2336F  LEU*     3.5    31.0    -      -       +      +
   2337F  ARG*     3.9    16.5    -      -       +      +
   2340F  VAL*     5.4     6.4    -      -       +      +
   2354F  VAL*     5.9     4.3    -      -       +      -
   2358F  LEU*     4.6    12.8    -      -       +      -
   2429F  ALA      2.9    17.1    +      -       -      +
   2430F  LEU*     3.6     5.6    -      -       -      +
   2432F  ASP*     1.3    74.8    -      -       -      +
   2434F  LEU*     1.3    74.4    +      -       +      +
   2436F  ARG*     3.2    13.2    +      -       -      +
   2437F  CYS*     3.1    25.2    +      -       +      -
----------------------------------------------------------
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Residues in contact with LEU2434 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2355F  VAL*     5.8     2.2    -      -       +      -
   2358F  LEU*     3.6    34.5    -      -       +      -
   2359F  ILE*     6.4     0.9    -      -       +      -
   2365F  PHE*     3.9    17.3    -      -       +      -
   2430F  LEU*     2.9    46.1    +      -       +      +
   2431F  ILE*     3.3    16.6    +      -       +      +
   2433F  LEU*     1.3    80.0    -      -       +      +
   2435F  GLY*     1.3    57.7    +      -       -      +
   2437F  CYS*     3.2    22.4    +      -       -      -
   2438F  ALA*     4.1     6.8    +      -       -      +
   2458F  LEU*     4.8    21.3    -      -       +      +
   2461F  LEU*     5.3    11.7    -      -       +      -
   2462F  VAL*     5.8     6.1    -      -       +      -
   2506F  PHE*     4.6     4.3    -      -       +      -
   2510F  VAL*     4.8     1.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY2435 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2431F  ILE      2.9    12.5    +      -       -      -
   2432F  ASP*     3.7     2.5    -      -       -      -
   2434F  LEU*     1.3    76.4    -      -       -      +
   2436F  ARG*     1.3    55.4    +      -       -      +
   2437F  CYS      3.4     0.2    -      -       -      -
   2438F  ALA*     3.5    12.5    +      -       -      +
   2506F  PHE*     3.5    28.0    -      -       -      -
   2509F  ARG*     2.7    31.1    +      -       -      +
   2510F  VAL*     3.9     8.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG2436 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2337F  ARG*     5.1     2.2    -      -       -      -
   2340F  VAL*     3.9    19.0    -      -       +      +
   2341F  PHE*     3.5    30.6    -      -       +      -
   2346F  SER*     3.5    13.3    +      -       -      -
   2432F  ASP      2.9    16.7    +      -       -      +
   2433F  LEU*     3.2     8.7    +      -       -      +
   2435F  GLY*     1.3    74.0    -      -       -      +
   2437F  CYS*     1.3    57.0    +      -       -      +
   2438F  ALA      3.1     5.2    +      -       -      +
   2509F  ARG*     2.8    29.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS2437 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2340F  VAL*     4.6     9.8    -      -       +      +
   2346F  SER*     5.6     0.7    -      -       -      -
   2351F  ALA*     3.5    25.1    -      -       +      +
   2354F  VAL*     4.0    18.4    -      -       +      -
   2355F  VAL*     3.5    33.4    -      -       +      +
   2358F  LEU*     5.5     2.0    -      -       -      -
   2433F  LEU*     3.1    25.5    +      -       +      +
   2434F  LEU*     3.2    25.8    -      -       -      -
   2436F  ARG*     1.3    76.2    -      -       -      +
   2438F  ALA*     1.3    62.4    +      -       -      +
   2439F  PRO*     3.7     4.3    -      -       -      +
   2454F  ILE*     5.4     2.3    -      -       -      +
   2458F  LEU*     4.6     2.7    -      -       -      +
----------------------------------------------------------
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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