Contacts of the helix formed by residues 7 - 21 (chain F) in PDB entry 7CR3


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 7 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6F  THR*     1.3    77.5    +      -       -      +
      8F  GLU*     1.3    57.7    +      -       -      +
     10F  ILE*     3.6    25.2    -      -       -      +
     11F  ALA*     2.9    35.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 8 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6F  THR*     3.2    17.0    +      -       +      +
      7F  GLU*     1.3    78.6    -      -       -      +
      9F  GLN*     1.3    84.0    +      -       -      +
     11F  ALA*     3.5     4.0    +      -       -      +
     12F  GLU*     2.9    36.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 9 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    351A  LEU*     3.5    30.5    -      -       +      +
    541A  ARG*     5.7     3.8    -      -       -      +
      6F  THR*     3.5    19.6    +      -       +      +
      7F  GLU      3.4     0.2    -      -       -      -
      8F  GLU*     1.3    93.9    +      -       -      +
     10F  ILE*     1.3    62.5    +      -       +      +
     12F  GLU*     3.4    21.2    -      -       -      +
     13F  PHE*     2.9    59.5    +      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 10 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6F  THR      3.2    19.7    +      -       -      +
      7F  GLU*     3.6    28.3    -      -       -      +
      8F  GLU      3.2     0.2    -      -       -      -
      9F  GLN*     1.3    78.3    -      -       +      +
     11F  ALA*     1.3    58.7    +      -       -      +
     13F  PHE*     3.3     7.7    +      -       +      +
     14F  LYS*     2.9    25.5    +      -       +      +
     66F  PHE*     3.8    11.9    -      -       +      -
     70F  LEU*     3.6    29.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 11 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7F  GLU*     2.9    24.2    +      -       +      +
      8F  GLU*     4.0     3.8    -      -       -      +
     10F  ILE*     1.3    75.5    -      -       -      +
     12F  GLU*     1.3    60.1    +      -       -      +
     14F  LYS*     3.3    12.6    -      -       +      +
     15F  GLU*     2.9    27.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 12 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    535A  GLY*     3.2    27.3    +      -       -      -
    538A  VAL*     3.1    35.7    -      -       -      +
    541A  ARG*     6.3     0.4    -      -       -      -
      8F  GLU*     2.9    28.0    +      -       -      +
      9F  GLN*     3.4    22.3    -      -       -      +
     10F  ILE      3.2     0.2    -      -       -      -
     11F  ALA*     1.3    76.3    -      -       -      +
     13F  PHE*     1.3    61.9    +      -       -      +
     15F  GLU*     3.2     9.7    +      -       -      +
     16F  ALA*     3.0    22.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 13 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    351A  LEU*     6.6     0.2    -      -       +      -
    538A  VAL*     3.6    30.3    -      -       +      -
    541A  ARG*     6.5     0.2    -      -       -      -
      9F  GLN*     2.9    47.4    +      -       +      +
     10F  ILE*     3.8     6.1    -      -       +      +
     12F  GLU*     1.3    74.8    -      -       -      +
     14F  LYS*     1.3    61.3    +      -       -      +
     16F  ALA*     3.6     4.3    -      -       -      -
     17F  PHE      2.8    22.3    +      -       -      -
     66F  PHE*     3.4     4.7    -      -       -      -
     69F  PHE*     3.2    20.9    -      +       +      -
     70F  LEU*     3.8    28.3    -      -       +      -
     73F  MET*     3.6    51.8    -      -       +      -
     74F  ALA*     5.1     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 14 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10F  ILE*     2.9    15.1    +      -       +      +
     11F  ALA*     3.3    16.2    -      -       +      +
     12F  GLU      3.2     0.2    -      -       -      -
     13F  PHE*     1.3    75.0    -      -       -      +
     15F  GLU*     1.3    60.6    +      -       -      +
     17F  PHE*     3.1    18.3    +      -       +      -
     18F  SER*     2.9    34.2    +      -       -      +
     66F  PHE*     3.6    27.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 15 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    535A  GLY*     4.3    21.0    +      -       -      +
     11F  ALA      2.9    13.2    +      -       -      +
     12F  GLU*     3.2    13.9    +      -       -      +
     14F  LYS*     1.3    71.9    -      -       -      +
     16F  ALA*     1.3    62.7    +      -       -      +
     18F  SER*     3.3     7.3    +      -       -      +
     19F  LEU*     2.9    39.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 16 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    538A  VAL*     3.6    32.5    -      -       +      +
    539A  SER*     5.2     1.8    -      -       -      +
     12F  GLU      3.0    10.1    +      -       -      +
     13F  PHE*     3.5    10.8    -      -       -      +
     14F  LYS      3.2     0.2    -      -       -      -
     15F  GLU*     1.3    78.1    +      -       -      +
     17F  PHE*     1.3    57.9    +      -       -      +
     19F  LEU*     3.8     6.9    -      -       -      +
     20F  PHE*     2.9    40.7    +      -       +      -
     69F  PHE*     3.6    21.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 17 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13F  PHE      2.8    14.7    +      -       -      +
     14F  LYS*     3.2    22.0    -      -       +      +
     16F  ALA*     1.3    77.5    -      -       -      +
     18F  SER*     1.3    55.1    +      -       -      +
     20F  PHE*     3.4     2.4    +      -       -      -
     21F  ASP*     2.7    40.9    +      -       -      +
     26F  GLY*     3.2    40.4    -      -       -      -
     27F  THR*     3.5     7.9    -      -       -      -
     28F  ILE*     3.3    34.6    -      -       +      +
     64F  ILE      3.6     0.2    -      -       -      -
     65F  ASP      3.4     6.1    -      -       -      -
     66F  PHE*     3.3    54.1    -      +       +      -
     69F  PHE*     4.0    12.1    -      +       +      -
----------------------------------------------------------
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Residues in contact with SER 18 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14F  LYS*     2.9    25.3    +      -       -      +
     15F  GLU*     3.3     8.5    +      -       -      -
     17F  PHE*     1.3    76.6    -      -       -      +
     19F  LEU*     1.3    58.0    +      -       -      +
     21F  ASP*     2.9    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 19 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    535A  GLY*     4.4     7.6    -      -       -      +
    536A  LEU*     5.3     0.9    -      -       -      +
    539A  SER*     3.4    27.8    -      -       -      +
     15F  GLU*     2.9    34.3    +      -       -      +
     16F  ALA*     3.8     6.5    -      -       -      +
     18F  SER*     1.3    76.5    -      -       -      +
     20F  PHE*     1.3    68.2    +      -       +      +
     21F  ASP      3.2     1.8    +      -       -      +
     22F  LYS*     3.3    25.1    -      -       -      +
     36F  VAL*     4.3     5.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 20 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    539A  SER*     4.3    19.7    -      -       -      -
    542A  ALA*     3.7    31.0    -      -       +      -
    543A  VAL*     4.2    13.2    -      -       +      -
    546A  MET*     3.8    21.8    -      -       +      -
     16F  ALA*     2.9    29.2    +      -       +      +
     17F  PHE*     3.6     1.3    -      -       -      +
     19F  LEU*     1.3    79.4    -      -       +      +
     21F  ASP*     1.3    59.1    +      -       -      +
     22F  LYS*     3.5     4.9    +      -       -      +
     28F  ILE*     3.6    36.8    -      -       +      -
     32F  GLU*     2.9    29.7    -      -       -      +
     33F  LEU*     3.7    16.2    -      -       +      -
     36F  VAL*     4.6    22.7    -      -       +      -
     64F  ILE*     5.7     2.7    -      -       +      -
     69F  PHE*     5.1     8.5    -      +       -      -
----------------------------------------------------------
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Residues in contact with ASP 21 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17F  PHE*     2.7    27.8    +      -       +      +
     18F  SER*     2.9    27.2    +      -       -      +
     19F  LEU      3.2     1.1    -      -       -      +
     20F  PHE*     1.3    72.1    -      -       -      +
     22F  LYS*     1.3    68.4    +      -       -      +
     24F  GLY*     3.2    30.3    +      -       -      -
     25F  ASP*     3.6     6.2    +      -       -      +
     26F  GLY*     3.9     6.8    +      -       -      -
     27F  THR      2.9    23.6    +      -       -      +
     28F  ILE*     3.4     2.9    -      -       +      +
     32F  GLU*     2.8    18.4    -      -       -      +
----------------------------------------------------------
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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