Contacts of the helix formed by residues 42 - 51 (chain d) in PDB entry 5FLX


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 CYS 42 (chain d).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   14951    G      3.2    25.6    -      -       +      +
     23d  VAL*     3.6    10.1    -      -       -      -
     38d  MET*     3.6    16.6    -      -       -      -
     39d  CYS*     3.4    10.5    -      -       -      -
     41d  GLN*     1.3    74.9    -      -       -      +
     43d  PHE*     1.3    59.2    +      -       -      +
     44d  ARG      3.0     2.9    -      -       -      -
     45d  GLN*     2.9    36.6    +      -       +      +
     46d  TYR*     3.3    17.5    +      -       +      +
    101d   ZN      3.4    29.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 43 (chain d). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63U  ILE*     3.5    36.6    -      -       +      -
     65U  THR*     3.6    18.4    -      -       +      +
     80U  PHE*     3.7    29.6    -      +       -      -
     32d  ARG*     4.2     8.5    -      -       -      +
     36d  LEU*     3.9    13.7    -      -       +      -
     38d  MET*     3.6    42.4    -      -       +      +
     40d  ARG*     4.9    12.1    -      -       -      +
     41d  GLN      3.2     2.9    -      -       -      +
     42d  CYS*     1.3    78.0    -      -       -      +
     44d  ARG*     1.3    61.9    +      -       -      +
     46d  TYR*     3.5     2.0    +      -       +      +
     47d  ALA*     3.1    21.1    +      -       +      +
     50d  ILE*     3.6    24.0    -      -       +      -
     52d  PHE*     4.0    14.6    -      +       -      -
----------------------------------------------------------
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Residues in contact with ARG 44 (chain d). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   13361    C      2.7    38.3    +      -       -      -
   13371    C      2.5    32.6    +      -       -      -
     65U  THR*     4.1    11.7    -      -       +      -
     67U  LYS*     3.6    34.4    -      -       -      +
     78U  ASP*     3.2    29.7    +      -       -      +
     80U  PHE*     5.0     4.4    -      -       +      -
     40d  ARG      5.7     0.7    -      -       -      -
     41d  GLN      4.0    13.7    +      -       -      +
     42d  CYS      3.0     0.8    -      -       -      -
     43d  PHE*     1.3    79.1    -      -       -      +
     45d  GLN*     1.3    69.0    +      -       -      +
     46d  TYR      3.5     0.2    +      -       -      -
     47d  ALA*     3.6    16.4    +      -       -      +
     48d  LYS*     4.8     1.6    +      -       -      +
     54d  LYS*     5.2     9.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 45 (chain d). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   13351    G      4.2     8.7    +      -       -      -
   13361    C      3.5    35.2    -      -       -      -
   14951    G      5.6     5.5    +      -       -      +
     23D  GLU*     5.6     1.7    -      -       -      +
    172D  VAL*     5.7     5.4    -      -       -      +
     41d  GLN      5.3     0.8    +      -       -      +
     42d  CYS*     2.9    27.0    +      -       +      +
     44d  ARG*     1.3    87.0    -      -       +      +
     46d  TYR*     1.3    72.8    +      -       +      +
     47d  ALA      3.7     0.2    +      -       -      -
     48d  LYS*     4.1    20.8    -      -       -      +
     49d  ASP*     4.2     4.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 46 (chain d). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19D  ALA*     4.2     9.4    -      -       +      -
     23D  GLU*     3.0    42.1    +      -       -      -
     27D  ARG*     4.7     6.2    +      -       -      -
     64K  TRP*     3.4    36.7    -      +       -      -
     23d  VAL*     4.1     8.2    -      -       +      +
     38d  MET*     3.4    35.2    -      -       +      -
     42d  CYS*     3.3    22.7    +      -       +      +
     43d  PHE      3.5     3.3    +      -       -      +
     44d  ARG      3.3     0.4    -      -       -      -
     45d  GLN*     1.3    82.2    -      -       +      +
     47d  ALA*     1.3    56.1    +      -       -      +
     48d  LYS      3.2     2.7    -      -       -      -
     49d  ASP*     2.8    17.3    +      -       +      -
     50d  ILE*     2.7    53.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 47 (chain d). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80U  PHE*     3.5    39.9    -      -       +      -
     43d  PHE*     3.1    16.6    +      -       +      +
     44d  ARG      3.6     8.9    +      -       -      +
     45d  GLN      3.4     1.8    -      -       -      -
     46d  TYR*     1.3    76.8    -      -       -      +
     48d  LYS*     1.3    60.8    +      -       -      +
     50d  ILE*     4.0     8.3    -      -       -      -
     51d  GLY      3.2     3.8    +      -       -      -
     52d  PHE*     2.8    38.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 48 (chain d). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170D  THR*     3.8    25.7    +      -       -      +
     27U  ARG*     4.5     5.2    +      -       -      -
     44d  ARG      4.8     1.9    +      -       -      +
     45d  GLN      4.1    17.0    -      -       -      +
     47d  ALA*     1.3    80.3    -      -       -      +
     49d  ASP*     1.3    78.1    +      -       -      +
     51d  GLY*     3.9     6.3    +      -       -      -
     52d  PHE      3.9     5.4    +      -       -      -
     53d  ILE*     5.9     2.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 49 (chain d). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15D  GLY*     4.2     1.8    -      -       -      -
     18D  LYS*     4.0    19.9    -      -       +      +
     19D  ALA*     4.2    23.1    -      -       +      +
     22D  ASN*     4.4    20.4    +      -       -      -
     23D  GLU*     4.4     8.8    -      -       -      +
     27U  ARG*     4.1     8.3    +      -       -      -
     45d  GLN      4.2     3.9    -      -       -      +
     46d  TYR*     2.8    26.9    +      -       -      +
     48d  LYS*     1.3   100.1    -      -       -      +
     50d  ILE*     1.3    60.4    +      -       -      +
     51d  GLY      3.5     0.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 50 (chain d). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11D  PHE      4.3     6.2    -      -       -      +
     12D  VAL*     4.5     4.4    -      -       +      +
     15D  GLY*     3.4    40.9    -      -       -      +
     16D  ILE*     3.9     6.3    -      -       +      +
     19D  ALA*     4.2     8.3    -      -       +      -
     27U  ARG*     4.3     1.7    -      -       -      -
     82U  MET*     4.2     7.8    -      -       -      +
     36d  LEU*     3.6    19.7    -      -       +      -
     38d  MET*     5.6     1.1    -      -       +      -
     43d  PHE*     3.6    23.3    -      -       +      -
     46d  TYR*     2.7    41.8    +      -       +      +
     47d  ALA*     3.9     1.8    -      -       -      +
     49d  ASP*     1.3    71.7    -      -       -      +
     51d  GLY*     1.3    58.6    +      -       -      +
     52d  PHE*     3.4    39.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 51 (chain d). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27U  ARG*     3.2    27.6    +      -       -      -
     81U  GLN      4.8     0.5    -      -       -      +
     82U  MET*     3.2    23.2    -      -       -      +
     47d  ALA      3.2     3.0    +      -       -      -
     48d  LYS*     3.9     3.3    +      -       -      -
     49d  ASP      3.3     4.6    +      -       -      -
     50d  ILE*     1.3    79.4    -      -       -      +
     52d  PHE*     1.3    61.5    +      -       -      +
     53d  ILE*     3.9     8.1    +      -       -      +
----------------------------------------------------------
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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