Contacts of the helix formed by residues 46 - 59 (chain N) 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 THR 46 (chain N).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    9261    A      5.0     0.7    -      -       -      +
     44N  GLY      3.8     2.1    +      -       -      -
     45N  LEU*     1.3    72.2    -      -       -      +
     47N  PRO*     1.3    63.2    -      -       +      -
     48N  SER*     3.5    20.6    -      -       -      +
     49N  GLN*     2.7    30.7    +      -       +      -
     50N  ILE*     2.5    33.4    +      -       -      +
     86N  GLU*     3.7    20.4    -      -       +      -
     89N  TYR*     5.9     2.3    -      -       -      -
     90N  HIS*     4.1    23.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 47 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   10171    U      4.1     1.2    +      -       -      -
   10181    U      4.4     8.7    -      -       -      +
   10191    C      5.9     0.7    -      -       -      +
     37N  ILE*     6.4     0.4    -      -       +      -
     45N  LEU      3.6     5.8    -      -       -      +
     46N  THR*     1.3    86.5    -      -       +      +
     48N  SER*     1.3    56.5    +      -       -      +
     50N  ILE*     3.5    18.4    -      -       +      +
     51N  GLY*     2.9    24.8    +      -       -      -
     71N  ILE*     4.0    24.6    -      -       +      +
     72N  LEU*     6.2     6.1    -      -       +      -
     75N  LEU*     4.4    22.7    -      -       +      -
     82N  PRO*     4.8     9.0    -      -       +      -
     86N  GLU*     3.2    30.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 48 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    9251    G      3.7     7.5    +      -       -      -
    9261    A      3.7    30.4    +      -       -      +
   10171    U      2.8    20.6    +      -       -      +
   10181    U      3.1    39.4    +      -       -      -
     46N  THR*     3.1    12.5    -      -       -      +
     47N  PRO*     1.3    77.6    -      -       -      +
     49N  GLN*     1.3    61.5    +      -       -      +
     52N  VAL*     3.3    13.7    +      -       -      +
     86N  GLU*     5.1     5.5    -      -       -      +
     90N  HIS*     5.6     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 49 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    9261    A      3.8    16.1    +      -       -      +
    9271    C      3.4    35.0    +      -       -      -
     45N  LEU*     4.2    18.0    -      -       +      +
     46N  THR*     2.7    37.7    +      -       -      +
     48N  SER*     1.3    71.1    -      -       -      +
     50N  ILE*     1.3    59.2    +      -       -      +
     51N  GLY      3.2     0.4    -      -       -      -
     52N  VAL*     2.9    11.4    +      -       +      +
     53N  ILE*     2.9    36.6    +      -       +      +
     90N  HIS*     6.3     1.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 50 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37N  ILE*     3.6    40.2    -      -       +      +
     40N  LEU*     4.8     4.7    -      -       +      -
     41N  ALA*     4.5    18.4    -      -       +      +
     45N  LEU*     3.3    38.1    -      -       +      +
     46N  THR      2.5    15.6    +      -       -      +
     47N  PRO*     3.2    24.9    +      -       +      +
     49N  GLN*     1.3    73.2    -      -       -      +
     51N  GLY*     1.3    57.8    +      -       -      +
     53N  ILE*     4.4     6.1    -      -       -      +
     54N  LEU*     2.9    46.0    +      -       +      +
     71N  ILE*     5.4     2.0    -      -       +      -
     75N  LEU*     6.4     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 51 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   10171    U      3.5    30.0    -      -       -      +
   10181    U      5.2     2.2    -      -       -      -
     47N  PRO      2.9    13.2    +      -       -      -
     48N  SER      3.7     0.2    +      -       -      -
     49N  GLN      3.2     0.2    -      -       -      -
     50N  ILE*     1.3    76.7    -      -       -      +
     52N  VAL*     1.3    49.4    +      -       -      +
     54N  LEU*     4.9     3.1    -      -       -      -
     55N  ARG*     2.5    39.4    +      -       -      +
     63N  VAL*     6.0     4.9    -      -       -      -
     71N  ILE*     5.1     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 52 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    9261    A      5.2     3.1    -      -       +      +
    9271    C      4.8    17.3    -      -       -      +
   10171    U      4.4     6.5    -      -       -      +
     48N  SER      3.3    16.8    +      -       -      +
     49N  GLN*     2.9    13.8    +      -       +      +
     51N  GLY*     1.3    77.0    -      -       -      +
     53N  ILE*     1.3    63.5    +      -       +      +
     55N  ARG*     3.3    36.6    -      -       -      +
     56N  ASP*     2.9    38.7    +      -       -      +
     51b  GLN*     4.3     9.9    -      -       +      +
     52b  THR*     4.3    16.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 53 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40N  LEU*     3.5    30.1    -      -       +      -
     45N  LEU*     4.2    18.4    -      -       +      -
     49N  GLN*     2.9    21.2    +      -       +      +
     50N  ILE      3.2     3.5    +      -       -      +
     52N  VAL*     1.3    78.6    -      -       +      +
     54N  LEU*     1.3    65.5    +      -       -      +
     55N  ARG      3.0     1.1    +      -       -      -
     56N  ASP*     3.2     1.1    +      -       -      -
     57N  SER*     2.9    38.4    +      -       -      -
     52b  THR*     4.4    22.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 54 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33N  VAL*     4.1    28.3    -      -       +      +
     36N  GLN*     4.4    11.0    -      -       +      -
     37N  ILE*     4.1    33.0    -      -       +      +
     40N  LEU*     3.5    25.8    -      -       +      -
     50N  ILE*     2.9    35.2    +      -       +      +
     51N  GLY*     4.7     3.1    -      -       -      +
     53N  ILE*     1.3    74.2    -      -       -      +
     55N  ARG*     1.3    63.8    +      -       -      +
     58N  HIS*     3.6    32.5    +      -       +      +
     60N  VAL*     3.7    12.2    +      -       +      +
     63N  VAL*     4.6    18.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 55 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   10151    U      4.2    13.8    +      -       -      +
   10161    U      4.2    10.5    -      -       -      +
   10171    U      2.7    54.5    +      -       -      -
     51N  GLY      2.5    26.9    +      -       -      +
     52N  VAL*     3.3    29.7    -      -       -      +
     53N  ILE      3.0     0.4    -      -       -      -
     54N  LEU*     1.3    77.3    -      -       -      +
     56N  ASP*     1.3    70.8    +      -       -      +
     59N  GLY*     3.1    21.1    +      -       -      -
     60N  VAL      3.2    14.0    -      -       -      +
     61N  ALA*     5.2     0.4    -      -       -      -
     62N  GLN      6.0     0.2    -      -       -      +
     47b  PHE*     3.0    37.3    -      -       +      -
     49b  HIS      5.5     2.8    +      -       -      -
     51b  GLN*     2.7    44.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 56 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52N  VAL*     2.9    24.2    +      -       -      +
     53N  ILE      4.4     0.2    -      -       -      +
     55N  ARG*     1.3    91.0    +      -       -      +
     57N  SER*     1.3    60.6    +      -       -      +
     59N  GLY*     3.6     0.9    +      -       -      -
     45b  THR      2.9    24.4    -      -       -      +
     46b  VAL*     4.3     4.3    -      -       -      -
     47b  PHE*     3.3    19.0    -      -       -      -
     49b  HIS      4.5     0.2    -      -       -      +
     50b  ALA*     3.8    17.0    -      -       +      -
     51b  GLN      3.1    20.4    +      -       -      -
     52b  THR*     3.3    27.9    +      -       +      +
     54b  VAL*     4.2    17.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 57 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53N  ILE*     2.9    26.9    +      -       -      -
     56N  ASP*     1.3    82.0    -      -       -      +
     58N  HIS*     1.3    74.2    +      -       -      +
     59N  GLY      3.6     0.2    +      -       -      -
     44b  THR*     4.6     6.8    -      -       -      +
     45b  THR*     3.6    12.1    +      -       -      +
     54b  VAL*     5.1    11.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 58 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26N  LEU*     3.6    19.0    -      -       +      +
     28N  LEU*     5.3    12.0    -      -       +      +
     36N  GLN*     3.2    49.4    +      -       +      +
     40N  LEU*     6.0     2.5    -      -       +      +
     53N  ILE      5.5     0.2    -      -       -      -
     54N  LEU*     3.6    30.6    +      -       +      +
     57N  SER*     1.3    85.8    +      -       -      +
     59N  GLY*     1.3    59.7    +      -       -      +
     60N  VAL*     3.1    18.0    +      -       +      +
     45b  THR*     3.0    13.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 59 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25N  TRP*     5.5     1.2    +      -       -      -
     26N  LEU*     3.8     9.7    -      -       -      +
     55N  ARG      3.1    14.0    +      -       -      -
     56N  ASP      3.6     1.2    +      -       -      -
     57N  SER      3.3     2.0    -      -       -      -
     58N  HIS*     1.3    78.2    -      -       -      +
     60N  VAL*     1.3    62.4    +      -       -      +
     61N  ALA      3.5     0.9    +      -       -      -
     32b  PHE*     3.4    26.5    -      -       -      -
     45b  THR*     3.2    24.0    +      -       -      -
     47b  PHE*     4.3     7.6    -      -       -      -
----------------------------------------------------------
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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