Contacts of the helix formed by residues 805 - 817 (chain A) in PDB entry 1HU3


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 PHE 805 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    764A  LYS      5.9     0.4    -      -       -      -
    765A  LEU*     4.5    11.9    -      -       +      -
    767A  PRO*     3.3    43.7    -      -       +      -
    802A  GLU*     3.0    34.8    +      -       +      +
    803A  PRO      3.1     1.4    -      -       -      -
    804A  SER*     1.3    89.5    -      -       -      +
    806A  SER*     1.3    59.4    +      -       -      +
    807A  VAL*     3.1     3.4    -      -       -      -
    808A  ALA*     2.8    23.3    +      -       +      +
    809A  TYR*     3.1    36.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 806 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    799A  ALA*     5.1     0.9    -      -       -      -
    803A  PRO*     2.5    24.4    +      -       -      -
    804A  SER      3.2     1.2    -      -       -      -
    805A  PHE*     1.3    75.0    -      -       -      +
    807A  VAL*     1.3    60.1    +      -       -      +
    809A  TYR*     3.8    12.3    -      -       -      -
    810A  ALA*     2.9    31.5    +      -       -      +
    894A  LYS*     3.4    26.6    +      -       -      +
    895A  PHE*     3.7    35.1    -      -       -      -
    898A  GLU*     3.5     6.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 807 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    804A  SER      4.7     5.6    +      -       -      +
    805A  PHE*     3.1     1.7    -      -       -      -
    806A  SER*     1.3    79.4    +      -       -      +
    808A  ALA*     1.3    60.3    +      -       -      +
    810A  ALA*     3.3     2.8    +      -       -      +
    811A  ASN*     2.9    47.5    +      -       -      +
    894A  LYS*     5.8     4.5    -      -       -      +
    898A  GLU*     3.5    33.7    -      -       -      +
    902A  LEU*     5.5     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 808 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    767A  PRO*     4.1    26.9    -      -       +      -
    768A  GLN      4.2    15.0    -      -       -      +
    773A  LEU*     3.8     4.3    -      -       +      +
    805A  PHE*     2.8    13.9    +      -       +      +
    807A  VAL*     1.3    81.6    -      -       -      +
    809A  TYR*     1.3    63.7    +      -       +      +
    811A  ASN*     2.9    12.2    +      -       -      +
    812A  MSE      2.8    27.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 809 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    762A  LEU*     3.7    39.7    +      -       +      -
    767A  PRO*     5.5     1.0    -      -       +      +
    795A  VAL*     3.9     9.8    -      -       +      +
    798A  LYS*     3.4    29.2    -      -       +      +
    799A  ALA*     3.6    26.0    -      -       +      -
    802A  GLU*     3.4    38.9    +      -       -      -
    805A  PHE*     3.1    34.9    +      -       +      -
    806A  SER*     3.8     3.1    -      -       -      +
    808A  ALA*     1.3    79.6    -      -       +      +
    810A  ALA*     1.3    57.7    +      -       -      +
    812A  MSE      3.0     9.9    -      -       +      +
    813A  CYS*     2.9    30.5    +      -       -      -
    895A  PHE*     3.7    17.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 810 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    806A  SER      2.9    19.9    +      -       -      +
    807A  VAL      3.6     4.0    -      -       -      +
    809A  TYR*     1.3    74.2    -      -       -      +
    811A  ASN*     1.3    62.4    +      -       -      +
    813A  CYS*     3.2     3.6    +      -       -      +
    814A  ARG*     2.9    26.5    +      -       -      +
    895A  PHE*     3.8     2.4    -      -       +      -
    898A  GLU*     3.8    27.8    -      -       +      -
    899A  LEU*     3.8    22.9    -      -       +      -
    902A  LEU*     4.0    10.3    -      -       +      -
    904A  MSE      3.7     4.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 811 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    769A  MSE      6.0     1.0    -      -       -      +
    770A  PHE*     3.9    28.7    -      -       +      +
    773A  LEU*     3.6    15.5    -      -       +      -
    807A  VAL*     2.9    39.3    +      -       -      +
    808A  ALA*     2.9    10.8    +      -       -      +
    810A  ALA*     1.3    76.5    -      -       -      +
    812A  MSE      1.3    62.7    +      -       -      +
    814A  ARG*     3.1    11.7    +      -       -      +
    815A  CYS*     3.0    25.3    +      -       -      -
    902A  LEU*     4.1    14.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with MSE 812 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    758A  VAL*     3.9    19.5    -      -       +      -
    761A  ILE*     3.7    25.4    -      -       +      -
    762A  LEU*     3.5    39.7    -      -       +      -
    773A  LEU*     3.6    23.8    -      -       +      +
    777A  VAL*     4.2    17.3    -      -       -      -
    780A  LEU*     5.8     2.2    -      -       +      -
    791A  VAL*     5.6     0.2    -      -       +      -
    795A  VAL*     4.2     9.0    -      -       +      -
    808A  ALA      2.8    10.6    +      -       -      +
    809A  TYR*     3.0    17.5    -      -       +      +
    811A  ASN*     1.3    76.0    -      -       -      +
    813A  CYS*     1.3    54.5    +      -       -      +
    815A  CYS*     2.8    26.5    +      -       -      +
    816A  LEU*     3.1    39.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 813 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    792A  ILE*     5.8     3.4    -      -       -      -
    795A  VAL*     4.0    23.6    -      -       -      -
    796A  PHE*     5.2     1.3    -      -       -      -
    809A  TYR      2.9    15.0    +      -       -      -
    810A  ALA      3.2     8.0    +      -       -      +
    812A  MSE      1.3    76.2    -      -       -      +
    814A  ARG*     1.3    64.3    +      -       -      +
    816A  LEU*     3.1    20.7    +      -       -      +
    817A  VAL*     3.1    15.2    +      -       -      +
    833A  PHE*     3.8    13.2    -      -       +      -
    837A  LEU*     4.3    15.0    -      -       -      -
    895A  PHE*     4.3     5.6    -      -       -      -
    899A  LEU*     3.6    26.0    -      -       +      -
    904A  MSE      3.8     6.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 814 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    770A  PHE*     3.5    38.2    -      -       +      -
    774A  MSE      5.5     0.7    -      -       -      +
    810A  ALA      2.9    13.1    +      -       -      +
    811A  ASN*     3.1    19.0    +      -       -      +
    813A  CYS*     1.3    76.8    -      -       -      +
    815A  CYS*     1.3    58.8    +      -       -      +
    817A  VAL*     3.3    20.3    -      -       +      +
    818A  THR*     4.0     4.9    +      -       -      -
    902A  LEU*     4.2    33.8    +      -       +      +
    904A  MSE      3.7    17.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 815 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    770A  PHE*     3.8     8.5    -      -       -      -
    773A  LEU*     3.8    15.0    -      -       -      -
    774A  MSE      3.6    53.9    -      -       -      +
    777A  VAL*     3.8    27.9    -      -       +      +
    811A  ASN      3.0    14.3    +      -       -      -
    812A  MSE      2.8    12.7    +      -       -      +
    814A  ARG*     1.3    77.6    -      -       -      +
    816A  LEU*     1.3    61.2    +      -       -      +
    818A  THR*     3.3    21.2    +      -       -      -
    819A  LEU*     4.7     0.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 816 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    777A  VAL*     3.5    28.5    -      -       +      -
    780A  LEU*     4.5    10.5    -      -       +      -
    782A  VAL*     5.0     3.8    -      -       +      -
    788A  LEU*     5.1     6.4    -      -       +      +
    791A  VAL*     4.3    24.0    -      -       +      -
    792A  ILE*     5.7     2.0    -      -       +      -
    795A  VAL*     4.8     7.2    -      -       +      -
    812A  MSE      3.1    49.8    +      -       +      +
    813A  CYS*     3.1     8.0    +      -       -      +
    815A  CYS*     1.3    72.6    -      -       -      +
    817A  VAL*     1.3    58.2    +      -       -      +
    818A  THR      2.9    11.6    +      -       -      -
    819A  LEU*     3.2    33.1    +      -       +      +
    833A  PHE*     3.5    28.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 817 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    813A  CYS      3.1     9.2    +      -       -      +
    814A  ARG*     3.3    23.6    -      -       +      +
    815A  CYS      3.2     0.8    -      -       -      -
    816A  LEU*     1.3    74.6    -      -       -      +
    818A  THR*     1.3    58.9    +      -       -      +
    819A  LEU      3.2     8.5    +      -       -      +
    833A  PHE*     3.3    41.9    -      -       +      +
    834A  ARG*     4.2    36.3    -      -       +      +
    904A  MSE      4.5     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