Contacts of the helix formed by residues 781 - 796 (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 ASP 781 (chain 1).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7791  SER*     3.3     8.7    -      -       -      +
    7801  PRO*     1.3    77.2    -      -       -      +
    7821  GLU*     1.3    61.4    +      -       -      +
    7831  GLU      3.6     1.6    -      -       -      +
    7841  MET*     3.7     7.7    +      -       -      +
    7851  LYS*     3.3    17.5    +      -       -      -
    161G    U      4.2    14.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 782 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7801  PRO      3.2     4.3    +      -       -      -
    7811  ASP*     1.3    70.5    -      -       -      +
    7831  GLU*     1.3    71.5    +      -       -      +
    7841  MET      3.0     0.9    -      -       -      -
    7851  LYS*     3.0     2.4    +      -       -      +
    7861  LYS*     3.0    19.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 783 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7811  ASP      3.6     0.2    -      -       -      -
    7821  GLU*     1.3    74.4    -      -       -      +
    7841  MET*     1.3    66.7    +      -       -      +
    7861  LYS*     3.3     1.9    +      -       -      -
    7871  ILE*     3.0    13.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 784 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7441  ALA*     6.0     6.7    -      -       -      +
    7811  ASP*     3.7    11.2    +      -       -      +
    7821  GLU      3.0     1.4    -      -       -      -
    7831  GLU*     1.3    73.6    -      -       -      +
    7851  LYS*     1.3    52.7    +      -       -      +
    7871  ILE*     2.3    30.0    +      -       -      +
    7881  VAL      2.9    10.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 785 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7771  PHE      5.7     5.2    -      -       -      -
    7811  ASP      3.3    11.9    +      -       -      -
    7821  GLU*     3.0     6.2    +      -       -      +
    7841  MET*     1.3    72.7    -      -       -      +
    7861  LYS*     1.3    67.4    +      -       -      +
    7881  VAL*     4.6     1.8    -      -       -      +
    7891  LEU*     3.1    17.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 786 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7821  GLU      3.0    12.9    +      -       -      -
    7831  GLU      3.7     4.3    -      -       -      -
    7851  LYS*     1.3    79.8    -      -       -      +
    7871  ILE*     1.3    65.1    +      -       -      +
    7891  LEU*     3.5     0.5    -      -       -      -
    7901  LYS*     3.0    15.4    +      -       -      -
    8291  ASN*     6.6     0.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 787 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7441  ALA      5.6     5.6    -      -       -      -
    7481  LYS*     5.8     8.6    -      -       -      +
    7831  GLU      3.0     8.0    +      -       -      -
    7841  MET*     2.3    19.4    +      -       -      +
    7861  LYS*     1.3    68.0    -      -       -      +
    7881  VAL*     1.3    61.8    +      -       -      +
    7901  LYS*     2.9    14.6    +      -       -      +
    7911  VAL*     2.9    11.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 788 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7731  LEU*     6.4     2.2    -      -       -      +
    7841  MET      2.9    11.0    +      -       -      -
    7851  LYS*     4.4     1.3    -      -       -      +
    7871  ILE*     1.3    74.5    -      -       -      +
    7891  LEU*     1.3    64.7    +      -       -      +
    7911  VAL*     3.4     2.7    +      -       -      +
    7921  VAL*     3.0    16.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 789 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7851  LYS      3.1    15.4    +      -       -      -
    7861  LYS      3.5     4.0    -      -       -      -
    7871  ILE      2.9     1.8    +      -       -      -
    7881  VAL*     1.3    77.4    -      -       -      +
    7901  LYS*     1.3    63.1    +      -       -      +
    7921  VAL*     2.8    14.8    +      -       -      +
    7931  LYS      3.2     8.1    +      -       -      -
    8361  THR*     5.8     3.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 790 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7861  LYS      3.0     8.8    +      -       -      -
    7871  ILE      2.9     9.2    +      -       -      -
    7891  LEU*     1.3    70.8    -      -       -      +
    7911  VAL*     1.3    65.7    +      -       -      +
    7931  LYS*     3.0    12.1    +      -       -      +
    7941  GLN      3.2     6.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 791 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7511  GLY*     4.8    19.0    -      -       -      -
    7871  ILE      2.9    11.9    +      -       -      -
    7881  VAL*     3.7     4.7    -      -       -      +
    7901  LYS*     1.3    73.5    -      -       -      +
    7921  VAL*     1.3    52.3    +      -       -      +
    7941  GLN*     2.2    32.7    +      -       -      +
    7951  CYS*     2.8    10.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 792 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7881  VAL      3.0     9.6    +      -       -      -
    7891  LEU      2.8    11.2    +      -       -      -
    7911  VAL*     1.3    69.4    -      -       -      +
    7931  LYS*     1.3    65.7    +      -       -      +
    7951  CYS*     4.3     3.1    -      -       -      +
    7961  CYS*     3.0    24.3    +      -       -      +
    7971  GLY      3.3     1.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 793 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7891  LEU      3.2     7.6    +      -       -      -
    7901  LYS*     3.0     9.1    +      -       -      +
    7911  VAL      2.8     2.4    +      -       -      -
    7921  VAL*     1.3    75.4    -      -       -      +
    7941  GLN*     1.3    50.5    +      -       -      +
    7971  GLY*     2.5    33.8    -      -       -      -
    8361  THR*     5.1    16.6    -      -       -      +
    8391  GLU*     6.4     1.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 794 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7511  GLY*     5.5     8.5    -      -       -      -
    7551  PRO      6.3     1.3    -      -       -      -
    7901  LYS      3.2     5.8    +      -       -      -
    7911  VAL*     2.2    20.3    +      -       -      +
    7931  LYS*     1.3    69.6    -      -       -      +
    7951  CYS*     1.3    58.5    +      -       -      +
    7971  GLY*     2.7    27.2    +      -       -      +
    7981  THR*     3.4     2.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 795 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7511  GLY*     6.2     1.2    -      -       -      -
    7661  THR*     6.4     1.8    -      -       -      +
    7911  VAL      2.8    14.9    +      -       -      -
    7921  VAL*     4.8     2.0    -      -       -      +
    7941  GLN*     1.3    72.9    -      -       -      +
    7961  CYS*     1.3    58.5    +      -       -      +
    7971  GLY      3.1     1.6    +      -       -      -
    7981  THR*     3.6     9.2    +      -       -      -
    8011  VAL*     5.6     4.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 796 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7921  VAL*     3.0    14.6    +      -       -      +
    7951  CYS*     1.3    73.5    -      -       -      +
    7971  GLY*     1.3    54.7    +      -       -      +
    7981  THR      3.1    10.1    +      -       -      +
    8011  VAL*     6.3     2.0    -      -       -      +
    8391  GLU      5.2     6.1    -      -       -      +
    8401  LEU*     5.7     2.3    -      -       -      -
----------------------------------------------------------
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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