Contacts of the helix formed by residues 886 - 902 (chain 1) in PDB entry 6AH0


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 HIS 886 (chain 1).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8851  ASP*     1.3    71.2    -      -       -      +
    8871  LYS*     1.3    56.8    +      -       -      +
    8881  LEU      3.2     1.6    -      -       -      -
    8891  GLU*     2.3    33.4    +      -       -      -
    8901  GLU      3.0     4.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 887 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8861  HIS*     1.3    70.8    -      -       -      +
    8881  LEU*     1.3    64.3    +      -       -      +
    8891  GLU      2.9     1.2    +      -       -      -
    8901  GLU*     3.0    12.9    +      -       -      +
    8911  GLN*     3.1     8.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 888 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8851  ASP*     5.0     3.1    -      -       -      +
    8861  HIS      3.1     2.6    +      -       -      +
    8871  LYS*     1.3    73.8    -      -       -      +
    8891  GLU*     1.3    56.8    +      -       -      +
    8911  GLN*     2.9     5.3    +      -       -      +
    8921  LEU*     2.8    22.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 889 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8851  ASP      4.3     8.5    +      -       -      +
    8861  HIS*     2.3    25.0    +      -       -      +
    8881  LEU*     1.3    64.9    -      -       -      +
    8901  GLU*     1.3    58.4    +      -       -      +
    8921  LEU*     2.5    24.0    +      -       -      +
    8931  ILE      3.0     9.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 890 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8861  HIS      3.0     6.5    +      -       -      -
    8871  LYS*     3.0     7.7    +      -       -      +
    8891  GLU*     1.3    75.4    -      -       -      +
    8911  GLN*     1.3    64.5    +      -       -      +
    8931  ILE*     3.2     0.6    +      -       -      +
    8941  ASP*     3.0    21.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 891 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8541  VAL*     6.1     2.9    -      -       -      -
    8871  LYS      3.1     7.2    +      -       -      -
    8881  LEU*     2.9    10.5    +      -       -      +
    8901  GLU*     1.3    75.7    -      -       -      +
    8921  LEU*     1.3    66.2    +      -       -      +
    8941  ASP*     5.2     0.7    -      -       -      +
    8951  GLY*     3.0    14.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 892 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8881  LEU      2.8     9.2    +      -       -      -
    8891  GLU*     2.5    16.2    +      -       -      +
    8911  GLN*     1.3    68.5    -      -       -      +
    8931  ILE*     1.3    55.4    +      -       -      +
    8951  GLY*     2.4    30.1    +      -       -      -
    8961  ILE*     2.8     9.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 893 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8891  GLU      3.0    12.5    +      -       -      -
    8901  GLU*     4.0     0.6    -      -       -      +
    8921  LEU*     1.3    70.3    -      -       -      +
    8941  ASP*     1.3    63.0    +      -       -      +
    8961  ILE*     4.1     2.9    -      -       -      +
    8971  LEU*     2.9    23.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 894 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8901  GLU      3.0    13.6    +      -       -      -
    8911  GLN*     4.3     0.9    -      -       -      +
    8931  ILE*     1.3    74.4    -      -       -      +
    8951  GLY*     1.3    64.5    +      -       -      +
    8971  LEU*     3.6     1.0    +      -       -      -
    8981  TYR*     3.0    15.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 895 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8541  VAL      6.1     1.3    -      -       -      -
    8571  LEU*     5.9     9.4    -      -       -      -
    8581  LYS      6.2     0.2    -      -       -      -
    8911  GLN      3.0    12.3    +      -       -      -
    8921  LEU      2.4    17.4    +      -       -      -
    8941  ASP*     1.3    67.1    -      -       -      +
    8961  ILE*     1.3    55.6    +      -       -      -
    8981  TYR*     2.3    28.7    +      -       -      -
    8991  ALA      2.8    10.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 896 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8921  LEU      2.8    14.6    +      -       -      -
    8931  ILE*     3.0     4.0    +      -       -      +
    8951  GLY*     1.3    71.4    -      -       -      -
    8971  LEU*     1.3    60.7    +      -       -      +
    8991  ALA*     4.3     1.5    -      -       -      +
    9001  PHE*     3.0    18.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 897 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8931  ILE      2.9    14.5    +      -       -      -
    8941  ASP      4.0     0.9    -      -       -      -
    8951  GLY      2.8     0.2    +      -       -      -
    8961  ILE*     1.3    77.2    -      -       -      +
    8981  TYR*     1.3    56.2    +      -       -      +
    9001  PHE*     2.3    28.1    +      -       -      +
    9011  GLN*     2.7    12.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 898 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8571  LEU      5.3     1.8    -      -       -      -
    8581  LYS*     6.3     1.3    -      -       -      -
    8941  ASP      3.0    10.9    +      -       -      -
    8951  GLY*     2.3    16.0    +      -       -      -
    8971  LEU*     1.3    68.4    -      -       -      +
    8991  ALA*     1.3    63.7    +      -       -      +
    9011  GLN*     3.7     5.2    +      -       -      +
    9021  GLU*     4.0     4.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 899 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8571  LEU*     4.6    16.9    +      -       -      +
    8951  GLY      2.8    10.8    +      -       -      -
    8961  ILE*     4.3     1.3    -      -       -      +
    8971  LEU      2.8     0.4    +      -       -      -
    8981  TYR*     1.3    77.0    -      -       -      +
    9001  PHE*     1.3    53.5    +      -       -      +
    9011  GLN      2.6    14.2    +      -       -      -
    9021  GLU      2.7    22.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 900 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8961  ILE      3.0    15.1    +      -       -      -
    8971  LEU*     2.3    16.1    +      -       -      +
    8991  ALA*     1.3    69.3    -      -       -      +
    9011  GLN*     1.3    58.5    +      -       -      -
    9021  GLU*     3.2     4.0    +      -       -      -
    9031  GLN*     4.6     2.3    +      -       -      -
    9101  MET*     6.3     3.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 901 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8971  LEU      2.7    10.7    +      -       -      -
    8981  TYR*     3.7     3.3    +      -       -      +
    8991  ALA      2.6     6.5    +      -       -      -
    9001  PHE*     1.3    75.8    -      -       -      +
    9021  GLU*     1.3    55.2    +      -       -      +
    9031  GLN      3.9     1.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 902 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8981  TYR      4.0     3.9    +      -       -      -
    8991  ALA*     2.7    15.2    +      -       -      +
    9001  PHE      4.4     1.6    -      -       -      -
    9011  GLN*     1.3    79.7    -      -       -      +
    9031  GLN*     1.3    58.6    +      -       -      +
    9041  THR      4.1     1.1    +      -       -      -
----------------------------------------------------------
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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