Contacts of the helix formed by residues 811 - 821 (chain D) in PDB entry 1DQ8


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 LEU 811 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    537C  PRO*     4.4     5.2    -      -       +      -
    558C  THR*     3.8    28.0    -      -       +      -
    517D  TYR*     3.8    18.8    -      -       -      +
    521D  LEU*     3.8    38.6    -      -       +      +
    522D  VAL*     4.1    15.5    -      -       +      -
    526D  CYS*     4.1    11.0    -      -       -      -
    808D  GLY*     3.1    14.1    +      -       -      +
    810D  ASN*     1.3    82.6    -      -       +      +
    812D  LEU*     1.3    60.3    +      -       -      +
    813D  PRO*     3.5     4.3    -      -       +      -
    814D  GLN*     3.1    25.9    +      -       -      +
    815D  GLN*     2.9    29.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 812 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    511C  TYR*     3.8    49.1    -      -       +      +
    518D  ASN*     5.4    11.0    -      -       +      +
    521D  LEU*     4.2    21.3    -      -       +      +
    810D  ASN      4.9     1.1    -      -       -      +
    811D  LEU*     1.3    69.1    -      -       -      +
    813D  PRO*     1.3    75.7    -      -       +      +
    815D  GLN*     3.1    20.9    +      -       -      +
    816D  ALA*     3.0    22.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 813 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    511C  TYR      3.4    22.9    -      -       -      +
    512C  LEU*     4.4     3.8    -      -       +      +
    513C  PRO*     4.1     8.5    -      -       +      -
    534C  MET*     3.1    24.6    -      -       +      +
    535C  PRO*     3.7    22.2    -      -       +      -
    517D  TYR*     4.7    13.7    -      -       +      +
    811D  LEU*     3.6     3.1    -      -       +      -
    812D  LEU*     1.3    93.8    -      -       +      +
    814D  GLN*     1.3    70.2    +      -       -      +
    816D  ALA*     3.1    17.8    +      -       -      +
    817D  CYS*     3.4    10.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 814 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    534C  MET*     2.8    30.8    -      -       -      +
    535C  PRO      3.6     9.5    +      -       -      +
    536C  ILE*     3.9    13.3    -      -       -      +
    558C  THR*     4.4     4.8    -      -       -      +
    517D  TYR*     5.0     0.5    +      -       -      -
    762D  ILE      4.6     2.0    +      -       -      -
    763D  ALA      3.4    13.1    -      -       -      +
    764D  CYS      3.7     1.1    -      -       -      +
    765D  GLY*     3.3    31.0    -      -       -      +
    808D  GLY      2.8    28.3    -      -       -      +
    809D  THR*     5.1     0.4    -      -       -      -
    811D  LEU*     3.1    31.1    -      -       +      +
    812D  LEU      3.3     0.2    -      -       -      -
    813D  PRO*     1.3    79.1    -      -       -      +
    815D  GLN*     1.3    61.0    +      -       -      +
    817D  CYS*     3.3     3.7    +      -       -      +
    818D  LEU*     3.1    27.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 815 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    809D  THR      3.0    27.7    +      -       -      +
    810D  ASN*     3.5    22.9    +      -       -      +
    811D  LEU      2.9    20.7    +      -       -      +
    812D  LEU*     3.6    20.3    -      -       +      +
    813D  PRO      3.1     0.6    -      -       -      -
    814D  GLN*     1.3    73.6    -      -       -      +
    816D  ALA*     1.3    60.5    +      -       -      +
    818D  LEU*     3.2     4.9    +      -       +      +
    819D  GLN*     2.8    39.8    +      -       -      +
    824D  GLN*     3.7    36.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 816 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    508C  SER*     3.1    28.7    -      -       -      +
    509C  LEU*     4.6     0.7    -      -       -      -
    511C  TYR*     4.3     3.1    -      -       +      +
    512C  LEU*     4.0    28.0    -      -       +      +
    812D  LEU      3.0    11.9    +      -       -      +
    813D  PRO      3.1    10.7    +      -       -      +
    815D  GLN*     1.3    77.6    -      -       -      +
    817D  CYS*     1.3    61.0    +      -       -      +
    819D  GLN*     3.2    10.2    +      -       -      +
    820D  MET*     3.0    26.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 817 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    512C  LEU*     4.2    15.9    -      -       -      -
    534C  MET*     5.1     1.1    -      -       -      -
    538D  VAL*     4.4     7.4    -      -       -      -
    554D  PRO*     3.7    29.6    -      -       +      +
    763D  ALA*     3.4    35.0    -      -       -      +
    764D  CYS*     4.2     4.3    -      -       -      -
    813D  PRO      3.4     8.4    +      -       -      -
    814D  GLN      3.3     3.0    +      -       -      +
    815D  GLN      3.3     0.4    -      -       -      -
    816D  ALA*     1.3    76.6    -      -       -      +
    818D  LEU*     1.3    66.9    +      -       -      +
    820D  MET*     3.3    39.9    -      -       -      +
    821D  LEU*     3.6     7.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 818 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    764D  CYS*     3.7    30.1    -      -       +      +
    766D  GLN*     4.5     0.9    -      -       -      +
    804D  THR*     4.2    18.2    -      -       +      +
    809D  THR*     3.5    31.2    -      -       +      +
    814D  GLN      3.1    17.0    +      -       -      +
    815D  GLN*     3.2    10.1    +      -       -      +
    817D  CYS*     1.3    78.3    -      -       -      +
    819D  GLN*     1.3    62.2    +      -       -      +
    821D  LEU*     3.2     3.6    +      -       -      -
    822D  GLY      3.1     3.6    +      -       -      -
    823D  VAL*     3.0    46.2    +      -       +      +
    824D  GLN*     3.6    22.9    -      -       +      +
    838D  LEU*     3.8    16.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 819 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    503C  LEU*     6.1     0.2    -      -       -      +
    504C  SER*     4.8     2.3    +      -       -      -
    505C  GLU*     2.8    40.5    +      -       -      +
    508C  SER*     3.3    37.5    +      -       -      +
    511C  TYR*     5.6     6.5    -      -       -      -
    815D  GLN*     2.8    25.7    +      -       -      +
    816D  ALA*     3.2     5.2    +      -       -      +
    818D  LEU*     1.3    73.6    -      -       -      +
    820D  MET*     1.3    59.0    +      -       -      +
    822D  GLY*     2.7    25.2    +      -       -      +
    824D  GLN*     3.6    26.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 820 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    499C  LEU*     4.5     8.3    -      -       -      -
    503C  LEU*     4.0    28.4    -      -       +      +
    504C  SER*     5.2     4.5    +      -       -      -
    508C  SER*     3.8    15.2    +      -       -      +
    509C  LEU*     3.4    32.5    -      -       +      -
    512C  LEU*     3.8     4.9    -      -       +      -
    531C  ILE*     3.7    19.5    -      -       +      -
    540D  VAL*     5.6     1.3    -      -       -      -
    551D  PHE*     5.6     0.7    -      -       -      -
    552D  GLN*     4.3    17.6    +      -       -      +
    554D  PRO*     3.8    17.7    -      -       +      -
    816D  ALA      3.0    13.5    +      -       -      +
    817D  CYS*     3.3    44.4    -      -       -      +
    819D  GLN*     1.3    76.8    -      -       -      +
    821D  LEU*     1.3    60.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 821 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    551D  PHE*     3.8    41.7    -      -       +      -
    552D  GLN      3.3    28.7    -      -       -      +
    553D  VAL*     4.2     2.7    -      -       -      -
    554D  PRO*     4.0    21.5    -      -       +      -
    760D  ILE*     5.1     2.5    -      -       +      -
    764D  CYS*     4.2    13.2    -      -       -      -
    817D  CYS      3.6     6.9    +      -       -      +
    818D  LEU      3.2     7.7    +      -       -      +
    819D  GLN      3.1     0.6    -      -       -      -
    820D  MET*     1.3    75.4    -      -       -      +
    822D  GLY*     1.3    62.4    +      -       -      +
    823D  VAL*     3.5    12.1    +      -       +      +
    837D  GLN*     5.2     2.1    -      -       -      +
    838D  LEU*     3.7    28.7    -      -       +      -
    841D  ILE*     4.0    22.8    -      -       +      +
----------------------------------------------------------
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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