Contacts of the helix formed by residues 21 - 36 (chain J) 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 GLU 21 (chain J).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      31    C      5.6     1.4    -      -       -      +
    6041    A      5.7     2.2    -      -       -      -
    208C  PRO*     6.3     3.1    -      -       +      -
     18J  ARG*     3.5    34.9    +      -       +      +
     20J  PHE*     1.3    79.5    -      -       -      +
     22J  LYS*     1.3    66.2    +      -       -      +
     23J  SER      3.4     0.7    -      -       -      +
     24J  ARG*     3.2    61.1    +      -       +      +
     25J  LEU*     3.1    33.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 22 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6041    A      5.0    22.0    +      -       -      +
    6051    A      6.0     2.0    -      -       -      +
     21J  GLU*     1.3    74.6    -      -       -      +
     23J  SER*     1.3    63.9    +      -       -      +
     25J  LEU*     4.3     3.3    -      -       -      +
     26J  ASP*     3.1    40.4    +      -       -      +
     53e  LYS*     4.1    31.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 23 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21J  GLU*     3.4     1.0    -      -       -      +
     22J  LYS*     1.3    79.2    +      -       -      +
     24J  ARG*     1.3    60.9    +      -       -      +
     26J  ASP*     3.2     9.1    +      -       -      +
     27J  GLN*     2.9    29.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 24 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16J  PRO*     3.3    26.9    -      -       -      +
     17J  ARG      4.6     0.8    -      -       -      +
     18J  ARG      2.3    35.7    +      -       -      +
     19J  PRO      3.0    21.8    +      -       -      -
     20J  PHE      3.8     0.2    -      -       -      +
     21J  GLU*     3.2    49.0    +      -       +      +
     22J  LYS      3.5     0.4    -      -       -      -
     23J  SER*     1.3    80.1    -      -       -      +
     25J  LEU*     1.3    61.1    +      -       -      +
     27J  GLN*     3.3    10.8    +      -       +      +
     28J  GLU*     2.9    56.9    +      -       +      +
     44J  TRP*     5.9     1.8    -      -       -      -
     47J  LYS*     6.4     1.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 25 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6041    A      4.6    15.7    -      -       -      +
    6401    A      4.4    29.4    -      -       -      +
    6411    A      3.9    22.0    -      -       -      +
     19J  PRO      4.7    10.3    -      -       -      +
     20J  PHE*     4.5     8.5    -      -       +      -
     21J  GLU      3.1    34.4    +      -       -      +
     22J  LYS*     4.3     3.1    -      -       -      +
     24J  ARG*     1.3    81.6    -      -       +      +
     26J  ASP*     1.3    60.3    +      -       -      +
     28J  GLU*     3.4    16.9    +      -       -      +
     29J  LEU*     2.9    41.8    +      -       +      +
     40J  LYS*     4.4     4.7    -      -       -      +
     44J  TRP*     6.2     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 26 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22J  LYS*     3.1    32.0    +      -       -      +
     23J  SER*     3.2    11.1    +      -       -      +
     25J  LEU*     1.3    80.7    -      -       -      +
     27J  GLN*     1.3    56.7    +      -       -      +
     29J  LEU*     3.3     9.1    +      -       -      +
     30J  LYS*     2.9    34.8    +      -       +      +
     42e  PHE*     4.4    22.4    -      -       +      -
     53e  LYS*     5.8     1.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 27 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23J  SER      2.9    16.7    +      -       -      +
     24J  ARG*     3.3    10.4    +      -       +      +
     26J  ASP*     1.3    75.1    -      -       -      +
     28J  GLU*     1.3    59.5    +      -       +      +
     30J  LYS*     3.2    30.0    -      -       -      +
     31J  LEU*     2.9    35.0    +      -       +      +
    102J  ILE*     5.8     5.9    -      -       -      +
    103J  GLU*     5.4     5.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 28 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16J  PRO*     6.2     0.2    -      -       -      +
     24J  ARG*     2.9    42.2    +      -       +      +
     25J  LEU*     3.8    14.2    -      -       -      +
     27J  GLN*     1.3    77.7    -      -       +      +
     29J  LEU*     1.3    58.4    +      -       -      +
     31J  LEU*     3.6     8.5    -      -       +      +
     32J  ILE*     2.9    37.9    +      -       +      +
     40J  LYS*     3.2    34.1    -      -       +      +
     43J  VAL*     4.9    11.7    -      -       +      -
     44J  TRP*     2.8    34.6    +      -       -      -
     47J  LYS*     5.4     5.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 29 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6401    A      4.7    14.4    -      -       -      +
     25J  LEU*     2.9    29.8    +      -       +      +
     26J  ASP*     3.7     7.4    -      -       -      +
     28J  GLU*     1.3    77.5    -      -       -      +
     30J  LYS*     1.3    56.8    +      -       -      +
     32J  ILE*     3.9     5.9    -      -       +      +
     33J  GLY      2.9    23.7    +      -       -      -
     40J  LYS*     3.4    27.6    -      -       -      +
     34e  ARG*     4.3    15.9    -      -       +      +
     37e  GLN*     4.8    17.9    -      -       +      -
     38e  TYR*     3.4    13.5    -      -       +      +
     41e  ARG*     5.2     6.5    -      -       -      +
     42e  PHE*     3.6    34.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 30 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26J  ASP*     2.9    16.8    +      -       +      +
     27J  GLN*     3.2    41.3    +      -       -      +
     29J  LEU*     1.3    77.4    -      -       -      +
     31J  LEU*     1.3    57.7    +      -       -      +
     34J  GLU*     2.9    29.6    +      -       -      +
    103J  GLU*     5.6     3.2    +      -       -      -
     38e  TYR*     3.6    22.1    +      -       +      +
     42e  PHE*     5.0     8.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 31 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27J  GLN*     2.9    23.1    +      -       +      +
     28J  GLU*     3.6     6.7    -      -       +      +
     29J  LEU      3.2     0.2    -      -       -      -
     30J  LYS*     1.3    77.1    -      -       +      +
     32J  ILE*     1.3    66.4    +      -       -      +
     34J  GLU*     3.1    10.6    +      -       -      +
     35J  TYR*     2.9    39.9    +      -       +      +
     43J  VAL*     3.8    29.2    -      -       +      -
    102J  ILE*     4.5    14.6    -      -       +      -
    103J  GLU*     4.0    20.6    -      -       +      +
    106J  LEU*     3.7    31.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 32 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28J  GLU      2.9    21.7    +      -       -      +
     29J  LEU*     3.9     6.7    -      -       +      +
     31J  LEU*     1.3    74.5    -      -       -      +
     33J  GLY*     1.3    58.4    +      -       -      +
     34J  GLU      3.1     0.2    +      -       -      -
     35J  TYR      5.2     0.2    -      -       -      -
     36J  GLY*     2.4    40.9    +      -       -      +
     37J  LEU*     3.9    32.3    -      -       +      +
     39J  ASN      4.3     9.9    -      -       -      +
     40J  LYS*     3.5    35.7    -      -       +      -
     43J  VAL*     3.6    26.2    -      -       +      -
     34e  ARG*     3.9    30.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 33 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29J  LEU      2.9    11.3    +      -       -      -
     30J  LYS      3.8     0.7    -      -       -      -
     32J  ILE*     1.3    78.2    -      -       -      +
     34J  GLU*     1.3    61.7    +      -       -      +
     36J  GLY*     4.2     3.8    +      -       -      -
    124J  HIS*     5.4     6.6    +      -       -      -
     34e  ARG      5.6     0.4    -      -       -      -
     35e  ARG*     6.2     1.8    -      -       -      -
     38e  TYR*     3.4    49.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 34 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30J  LYS      2.9    20.3    +      -       -      +
     31J  LEU*     3.3    14.9    -      -       -      +
     32J  ILE      3.1     0.2    -      -       -      -
     33J  GLY*     1.3    80.8    -      -       -      +
     35J  TYR*     1.3    93.6    +      -       +      +
     36J  GLY      3.8     0.2    +      -       -      -
    103J  GLU*     4.4     8.3    -      -       -      +
    123J  ILE*     5.6     4.2    -      -       -      +
     38e  TYR*     4.4     4.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 35 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31J  LEU*     2.9    35.0    +      -       +      +
     32J  ILE      3.4     0.2    -      -       -      -
     34J  GLU*     1.3   108.3    +      -       +      +
     36J  GLY*     1.3    54.7    +      -       -      +
     37J  LEU*     3.6    18.6    -      -       +      -
    103J  GLU*     3.1    35.7    +      -       +      +
    106J  LEU*     3.4    42.0    -      -       +      +
    107J  GLU*     3.7    15.1    +      -       +      +
    111J  GLN*     2.3    36.9    +      -       -      +
    112J  THR*     3.7    16.9    +      -       +      -
    123J  ILE*     4.2     8.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 36 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32J  ILE*     2.4    25.3    +      -       -      -
     33J  GLY*     4.2     3.0    -      -       -      -
     34J  GLU      3.5     2.0    -      -       -      -
     35J  TYR*     1.3    72.1    -      -       -      +
     37J  LEU*     1.3    61.6    +      -       -      -
    111J  GLN*     3.5    15.3    +      -       -      +
    123J  ILE*     4.7     6.2    -      -       -      +
    124J  HIS*     4.2    25.2    -      -       -      -
    127J  ARG*     3.9    13.9    +      -       -      +
     31e  ARG*     5.3     1.5    -      -       -      +
----------------------------------------------------------
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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