Contacts of the helix formed by residues 2423 - 2437 (chain D) 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 D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2322D  ILE*     4.1    17.7    -      -       +      -
   2324D  TRP*     3.5    37.5    -      -       +      -
   2326D  PRO*     5.1     4.7    -      -       +      -
   2380D  THR*     5.0     9.0    -      -       +      -
   2381D  ILE*     5.2     1.6    -      -       +      -
   2384D  ALA*     4.4    22.7    -      -       +      -
   2422D  ALA*     1.3    88.3    -      -       +      +
   2424D  MET*     1.3    62.4    +      -       -      +
   2426D  PHE*     3.3     2.1    +      -       -      +
   2427D  TYR*     2.9    48.9    +      -       +      -
----------------------------------------------------------
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Residues in contact with MET2424 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2381D  ILE*     4.8     9.0    -      -       +      -
   2384D  ALA*     5.1     3.4    -      -       +      +
   2385D  ILE*     3.8    30.1    -      -       +      -
   2422D  ALA      4.5     1.5    -      -       -      +
   2423D  ILE*     1.3    80.4    -      -       -      +
   2425D  SER*     1.3    58.6    +      -       -      +
   2427D  TYR*     3.4     5.8    +      -       -      +
   2428D  ALA      2.9    24.3    +      -       -      -
   2495D  PHE*     5.5     1.1    -      -       +      -
   2499D  HIS*     3.1    29.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER2425 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2330D  GLU*     5.7     4.3    -      -       -      -
   2422D  ALA*     3.6    22.5    +      -       -      +
   2423D  ILE      3.3     0.4    -      -       -      -
   2424D  MET*     1.3    77.6    -      -       -      +
   2426D  PHE*     1.3    57.7    +      -       -      +
   2428D  ALA*     3.3     3.4    +      -       -      +
   2429D  ALA*     2.9    29.5    +      -       -      +
   2499D  HIS*     3.2    19.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE2426 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2324D  TRP*     3.4    39.7    -      +       +      -
   2325D  ASN      4.9     0.9    -      -       -      -
   2326D  PRO      4.0     9.2    -      -       -      +
   2329D  GLY*     3.6    37.2    -      -       -      -
   2330D  GLU*     3.9     6.5    -      -       -      +
   2333D  LEU*     3.6    21.3    -      -       +      -
   2364D  CYS      5.0    10.1    -      -       -      -
   2365D  PHE      5.6     0.2    -      -       -      -
   2366D  GLY*     4.9    12.6    -      -       -      -
   2367D  PRO*     5.8     0.4    -      -       +      -
   2422D  ALA      3.0    19.6    +      -       -      +
   2423D  ILE      3.7     2.9    -      -       -      +
   2425D  SER*     1.3    76.2    -      -       -      +
   2427D  TYR*     1.3    66.6    +      +       -      +
   2429D  ALA*     3.3     5.9    +      -       -      +
   2430D  LEU*     2.9    46.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR2427 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2324D  TRP*     4.0    13.3    +      +       -      -
   2366D  GLY*     4.1    19.4    -      -       -      -
   2367D  PRO*     4.2     4.0    -      -       -      +
   2368D  ALA*     3.4    33.7    +      -       +      +
   2369D  LEU*     4.9    14.1    -      -       +      -
   2377D  LEU*     5.1    15.7    -      -       +      -
   2380D  THR*     4.5     9.5    -      -       +      +
   2381D  ILE*     3.6    31.0    -      -       +      -
   2423D  ILE*     2.9    47.2    +      -       +      +
   2424D  MET      3.8     2.7    -      -       -      +
   2426D  PHE*     1.3    82.8    -      +       -      +
   2428D  ALA*     1.3    57.9    +      -       -      +
   2430D  LEU*     3.3    15.4    +      -       +      +
   2431D  ILE*     2.9    32.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA2428 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2424D  MET      2.9    17.5    +      -       -      +
   2425D  SER*     3.7     5.2    -      -       -      +
   2427D  TYR*     1.3    74.1    -      -       -      +
   2429D  ALA*     1.3    59.0    +      -       -      +
   2431D  ILE*     3.1    11.6    -      -       -      +
   2432D  ASP*     2.9    31.3    +      -       -      +
   2498D  ASP      5.7     0.2    -      -       -      -
   2499D  HIS*     3.6    31.9    -      -       +      +
   2502D  SER*     4.2    10.5    -      -       -      -
   2503D  MET*     5.1     4.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA2429 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2330D  GLU*     5.0    10.5    -      -       +      -
   2333D  LEU*     4.7    14.3    -      -       +      +
   2334D  ASP*     4.9    12.8    -      -       -      +
   2337D  ARG*     6.0     0.9    -      -       -      +
   2425D  SER      2.9    17.8    +      -       -      +
   2426D  PHE*     3.7     5.8    -      -       -      +
   2428D  ALA*     1.3    75.2    -      -       -      +
   2430D  LEU*     1.3    58.1    +      -       -      +
   2432D  ASP*     3.4     5.8    +      -       -      +
   2433D  LEU*     2.9    31.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU2430 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2333D  LEU*     4.1    31.1    -      -       +      +
   2358D  LEU*     5.6     3.8    -      -       +      -
   2364D  CYS*     4.9     7.9    -      -       -      +
   2365D  PHE*     4.3    16.2    -      -       +      -
   2366D  GLY*     3.9    25.4    -      -       -      +
   2426D  PHE*     2.9    29.4    +      -       +      +
   2427D  TYR*     3.6    15.5    -      -       +      +
   2428D  ALA      3.3     0.2    -      -       -      -
   2429D  ALA*     1.3    78.2    -      -       -      +
   2431D  ILE*     1.3    57.9    +      -       -      +
   2433D  LEU*     3.3     3.1    +      -       +      +
   2434D  LEU*     2.9    53.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE2431 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2377D  LEU*     6.0     1.1    -      -       +      -
   2427D  TYR      2.9    18.0    +      -       -      +
   2428D  ALA*     3.1    22.0    -      -       -      +
   2430D  LEU*     1.3    74.9    -      -       -      +
   2432D  ASP*     1.3    59.2    +      -       -      +
   2434D  LEU*     3.3     6.7    +      -       +      -
   2435D  GLY      2.9    23.7    +      -       -      -
   2462D  VAL*     3.7    28.7    -      -       +      -
   2502D  SER*     5.0     4.0    -      -       -      +
   2503D  MET*     4.1    28.7    -      -       +      -
   2506D  PHE*     3.5    50.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP2432 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2337D  ARG*     5.3    13.3    -      -       -      +
   2341D  PHE*     5.5     0.2    -      -       -      -
   2428D  ALA      2.9    18.3    +      -       -      +
   2429D  ALA*     3.7     6.7    -      -       -      +
   2431D  ILE*     1.3    79.4    -      -       -      +
   2433D  LEU*     1.3    56.2    +      -       -      +
   2435D  GLY*     3.4     1.9    +      -       -      -
   2436D  ARG*     2.9    29.5    +      -       -      +
   2502D  SER*     4.4    20.9    -      -       -      +
   2505D  LEU*     6.5     2.0    -      -       +      -
   2506D  PHE*     5.4     2.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU2433 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2333D  LEU*     3.3    51.1    -      -       +      +
   2336D  LEU*     3.5    30.1    -      -       +      +
   2337D  ARG*     3.9    17.4    -      -       +      +
   2340D  VAL*     5.4     6.6    -      -       +      +
   2354D  VAL*     5.9     4.3    -      -       +      -
   2358D  LEU*     4.6    12.3    -      -       +      -
   2429D  ALA      2.9    16.5    +      -       -      +
   2430D  LEU*     3.3     6.0    +      -       +      +
   2432D  ASP*     1.3    75.5    -      -       -      +
   2434D  LEU*     1.3    75.8    +      -       +      +
   2436D  ARG*     3.2    12.9    +      -       -      +
   2437D  CYS*     3.1    25.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU2434 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2355D  VAL*     5.8     2.2    -      -       +      -
   2358D  LEU*     3.6    33.4    -      -       +      -
   2359D  ILE*     6.4     0.9    -      -       +      -
   2365D  PHE*     3.9    17.7    -      -       +      -
   2430D  LEU*     2.9    45.6    +      -       +      +
   2431D  ILE*     3.3    15.7    +      -       +      +
   2433D  LEU*     1.3    79.9    -      -       +      +
   2435D  GLY*     1.3    58.9    +      -       -      +
   2437D  CYS*     3.2    23.3    +      -       -      -
   2438D  ALA*     4.1     6.4    +      -       -      +
   2458D  LEU*     4.8    20.2    -      -       +      +
   2461D  LEU*     5.3    11.9    -      -       +      -
   2462D  VAL*     5.8     5.4    -      -       +      -
   2506D  PHE*     4.6     4.7    -      -       +      -
   2510D  VAL*     4.8     1.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY2435 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2431D  ILE      2.9    12.2    +      -       -      -
   2432D  ASP      3.7     2.0    -      -       -      -
   2434D  LEU*     1.3    76.6    -      -       -      +
   2436D  ARG*     1.3    55.8    +      -       -      +
   2438D  ALA*     3.5    12.4    +      -       -      +
   2506D  PHE*     3.5    28.8    -      -       -      -
   2509D  ARG*     2.7    32.3    +      -       -      +
   2510D  VAL*     3.9     7.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG2436 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2337D  ARG*     5.1     2.2    -      -       -      -
   2340D  VAL*     3.9    18.8    -      -       +      +
   2341D  PHE*     3.5    30.0    -      -       +      -
   2346D  SER*     3.5    13.2    +      -       -      -
   2432D  ASP      2.9    18.0    +      -       -      +
   2433D  LEU*     3.2     8.4    +      -       -      +
   2435D  GLY*     1.3    72.2    -      -       -      +
   2437D  CYS*     1.3    57.6    +      -       -      +
   2438D  ALA      3.1     5.5    +      -       -      +
   2509D  ARG*     2.8    29.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS2437 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2340D  VAL*     4.6     9.8    -      -       +      +
   2346D  SER*     5.5     0.9    -      -       -      -
   2351D  ALA*     3.5    25.0    -      -       +      +
   2354D  VAL*     4.0    18.8    -      -       +      -
   2355D  VAL*     3.5    34.4    -      -       +      +
   2358D  LEU*     5.5     2.0    -      -       -      -
   2433D  LEU*     3.1    25.1    +      -       -      +
   2434D  LEU*     3.2    25.4    -      -       -      -
   2436D  ARG*     1.3    76.5    -      -       -      +
   2438D  ALA*     1.3    62.8    +      -       -      +
   2439D  PRO*     3.7     4.5    -      -       -      +
   2454D  ILE*     5.4     1.9    -      -       -      +
   2458D  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