Contacts of the helix formed by residues 797 - 808 (chain T) in PDB entry 1BGX


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 797 (chain T).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    796T  ALA*     1.3    77.6    -      -       -      +
    798T  ALA*     1.3    64.2    +      -       -      +
    800T  ALA*     3.7     5.9    +      -       -      +
    801T  ARG*     3.5    57.3    +      -       -      +
    823T  ILE*     3.6    23.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 798 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    775T  MET*     5.3    12.2    -      -       -      +
    796T  ALA      3.4     3.0    -      -       -      +
    797T  GLU*     1.3    80.5    -      -       -      +
    799T  VAL*     1.3    64.9    +      -       +      +
    801T  ARG*     3.9    11.9    +      -       -      +
    802T  LEU*     3.5    20.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 799 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    607T  VAL*     5.2     3.6    -      -       +      -
    768T  LEU*     6.2     0.4    -      -       +      -
    772T  LEU*     4.3    13.9    -      -       +      -
    775T  MET*     4.4    22.9    -      -       +      +
    777T  ALA*     4.1    23.3    -      -       +      -
    789T  LEU*     4.5    14.6    -      -       +      -
    791T  ALA*     3.9    26.2    -      -       +      -
    796T  ALA      3.9    10.2    +      -       -      +
    797T  GLU      3.4     0.4    -      -       -      -
    798T  ALA*     1.3    82.8    -      -       +      +
    800T  ALA*     1.3    58.1    +      -       -      +
    801T  ARG      3.3     0.7    -      -       -      -
    802T  LEU*     4.4     9.9    -      -       +      -
    803T  ALA*     3.0    31.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 800 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    607T  VAL*     3.9    22.4    -      -       +      +
    609T  LEU*     4.5     0.6    -      -       -      +
    796T  ALA      3.3    18.9    +      -       -      +
    797T  GLU*     3.9     8.1    -      -       -      +
    799T  VAL*     1.3    77.8    -      -       -      +
    801T  ARG*     1.3    60.3    +      -       +      +
    803T  ALA*     4.4     3.7    -      -       -      +
    804T  LYS*     3.6    22.2    +      -       -      +
    821T  VAL*     4.0    19.3    -      -       +      +
    823T  ILE*     3.9    17.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 801 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    797T  GLU*     3.5    49.6    +      -       -      +
    798T  ALA*     4.2     9.8    -      -       -      +
    799T  VAL      3.3     0.2    -      -       -      -
    800T  ALA*     1.3    78.1    -      -       +      +
    802T  LEU*     1.3    63.2    +      -       -      +
    804T  LYS*     3.8     7.9    +      -       -      +
    805T  GLU*     3.6    18.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 802 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    768T  LEU*     5.3     3.4    -      -       +      -
    771T  ARG*     4.0    45.3    -      -       +      +
    772T  LEU*     6.4     1.1    -      -       +      -
    774T  GLU*     6.4     0.2    -      -       -      -
    775T  MET*     4.0    27.4    -      -       +      -
    798T  ALA      3.5    15.5    +      -       -      +
    799T  VAL*     3.3    11.6    +      -       +      +
    801T  ARG*     1.3    78.0    -      -       -      +
    803T  ALA*     1.3    64.1    +      -       -      +
    804T  LYS      3.2     0.2    -      -       -      -
    805T  GLU*     3.3    21.6    +      -       +      +
    806T  VAL*     3.2    24.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 803 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    609T  LEU*     3.8    20.2    -      -       +      -
    768T  LEU*     4.0    23.4    -      -       +      +
    789T  LEU*     3.9    23.6    -      -       +      -
    799T  VAL*     3.0    20.1    +      -       +      +
    800T  ALA      4.4     1.1    -      -       -      +
    802T  LEU*     1.3    77.5    -      -       -      +
    804T  LYS*     1.3    60.8    +      -       -      +
    805T  GLU      3.3     0.2    -      -       -      -
    806T  VAL*     3.6     1.6    +      -       -      +
    807T  MET*     3.3    31.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 804 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    609T  LEU*     4.1     4.7    -      -       -      +
    800T  ALA      3.6    15.2    +      -       -      +
    801T  ARG*     4.0     9.0    -      -       -      +
    802T  LEU      3.2     0.6    -      -       -      -
    803T  ALA*     1.3    77.0    -      -       -      +
    805T  GLU*     1.3    61.9    +      -       -      +
    807T  MET*     4.3     2.4    -      -       -      +
    808T  GLU*     3.0    62.7    +      -       -      +
    818T  GLU*     3.0    22.8    +      -       -      -
    819T  VAL*     3.4    24.7    +      -       +      -
    821T  VAL*     4.0    24.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 805 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    771T  ARG*     5.4     6.0    +      -       -      -
    801T  ARG      3.6    10.8    +      -       -      +
    802T  LEU*     3.3    21.1    +      -       -      +
    804T  LYS*     1.3    79.8    -      -       -      +
    806T  VAL*     1.3    62.6    +      -       -      +
    808T  GLU*     4.8     3.4    -      -       -      -
    809T  GLY*     3.2    26.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 806 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    764T  ALA*     3.9    24.6    -      -       +      +
    767T  LYS*     4.0    13.3    -      -       +      +
    768T  LEU*     4.0    23.6    -      -       +      +
    771T  ARG*     3.6    37.0    -      -       -      +
    802T  LEU*     3.2    22.4    +      -       +      +
    803T  ALA      4.1     4.5    -      -       -      +
    804T  LYS      3.4     0.2    -      -       -      -
    805T  GLU*     1.3    84.2    -      -       +      +
    807T  MET*     1.3    63.3    +      -       +      +
    809T  GLY      3.6     3.5    -      -       -      +
    810T  VAL*     3.5    24.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 807 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    609T  LEU*     3.8    36.1    -      -       +      +
    610T  ASP      5.3     0.2    -      -       -      +
    611T  TYR*     3.3    52.7    +      -       +      +
    761T  MET*     4.0    17.0    -      -       +      -
    764T  ALA*     4.4    12.3    -      -       +      -
    768T  LEU*     5.3     4.9    -      -       +      -
    787T  LEU*     4.1    25.1    -      -       +      -
    803T  ALA*     3.3    21.1    +      -       -      +
    804T  LYS      4.3     0.9    -      -       -      +
    806T  VAL*     1.3    79.4    -      -       +      +
    808T  GLU*     1.3    59.6    +      -       -      +
    810T  VAL*     3.6     8.3    -      -       -      +
    817T  LEU*     3.4    13.3    -      -       -      +
    819T  VAL*     3.9    19.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 808 (chain T). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    804T  LYS*     3.0    57.0    +      -       -      +
    805T  GLU*     4.6     3.0    -      -       -      +
    807T  MET*     1.3    77.1    -      -       -      +
    809T  GLY*     1.3    59.1    +      -       -      +
    810T  VAL*     3.3     7.5    +      -       -      +
    811T  TYR      4.7     6.1    -      -       -      +
    817T  LEU*     2.9    45.9    -      -       -      +
    818T  GLU*     3.5     9.2    -      -       -      +
    819T  VAL*     3.7    19.5    -      -       +      -
----------------------------------------------------------
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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