Contacts of the helix formed by residues 808 - 825 (chain 3) 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 THR 808 (chain 3).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8073  TYR*     1.3    78.6    -      -       -      +
    8093  GLU*     1.3    59.9    +      -       -      +
    8103  ALA      3.4     2.2    -      -       -      -
    8113  THR*     2.6    28.2    +      -       -      +
    8123  LYS*     3.0     4.9    +      -       -      -
    8623  TRP      3.9    10.1    +      -       -      -
    8633  ALA*     4.6    10.3    -      -       -      +
    8643  SER      5.9     0.2    -      -       -      +
    8823  LEU      6.1     0.7    -      -       -      -
    8843  GLN*     5.6     0.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 809 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8073  TYR      4.5     0.4    -      -       -      -
    8083  THR*     1.3    73.7    -      -       -      +
    8103  ALA*     1.3    61.2    +      -       -      +
    8123  LYS*     3.1     4.6    +      -       -      +
    8133  ALA*     3.0    15.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 810 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8083  THR      3.4     0.6    -      -       -      -
    8093  GLU*     1.3    73.6    -      -       -      +
    8113  THR*     1.3    57.4    +      -       -      +
    8133  ALA*     2.9     6.5    +      -       -      +
    8143  GLN*     2.9    22.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 811 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8073  TYR*     4.9     3.1    -      -       -      +
    8083  THR*     2.6    22.2    +      -       -      +
    8103  ALA*     1.3    67.6    -      -       -      +
    8123  LYS*     1.3    55.9    +      -       -      +
    8133  ALA      2.8     3.6    -      -       -      -
    8143  GLN*     2.8    20.0    +      -       -      +
    8153  ARG*     2.9    11.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 812 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8073  TYR*     4.6     6.0    +      -       -      +
    8083  THR      3.0    10.3    +      -       -      -
    8093  GLU      3.1     5.1    +      -       -      -
    8113  THR*     1.3    74.3    -      -       -      +
    8133  ALA*     1.3    56.8    +      -       -      +
    8153  ARG*     5.1     1.3    -      -       -      +
    8163  LYS*     2.8    25.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 813 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8093  GLU      3.0     8.5    +      -       -      -
    8103  ALA*     2.9    12.3    +      -       -      +
    8113  THR      2.8     3.2    -      -       -      -
    8123  LYS*     1.3    76.7    -      -       -      +
    8143  GLN*     1.3    59.3    +      -       -      +
    8163  LYS*     4.5     0.4    -      -       -      +
    8173  GLN*     2.8    27.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 814 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8103  ALA      2.9     8.8    +      -       -      -
    8113  THR*     2.8    12.2    +      -       -      +
    8133  ALA*     1.3    72.7    -      -       -      +
    8153  ARG*     1.3    56.0    +      -       -      +
    8173  GLN*     3.9     0.7    -      -       -      +
    8183  GLN*     2.9    25.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 815 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8113  THR      2.9    12.0    +      -       -      -
    8123  LYS*     4.8     2.2    -      -       -      +
    8143  GLN*     1.3    75.7    -      -       -      +
    8163  LYS*     1.3    65.1    +      -       -      +
    8183  GLN*     4.5     1.8    -      -       -      +
    8193  MET*     2.9    18.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 816 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8123  LYS*     2.8    26.3    +      -       -      +
    8133  ALA*     3.0     4.0    +      -       -      +
    8153  ARG*     1.3    79.0    -      -       -      +
    8173  GLN*     1.3    63.0    +      -       -      +
    8183  GLN      2.8     0.2    +      -       -      -
    8193  MET*     3.1     1.2    +      -       -      -
    8203  ALA*     3.0    16.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 817 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8133  ALA      2.8    15.3    +      -       -      -
    8143  GLN*     3.9     0.9    -      -       -      +
    8163  LYS*     1.3    70.6    -      -       -      +
    8183  GLN*     1.3    57.1    +      -       -      +
    8203  ALA*     3.5     4.5    -      -       -      +
    8213  GLU*     2.8    27.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 818 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8143  GLN      2.9    16.7    +      -       -      -
    8153  ARG*     3.4     5.8    -      -       -      +
    8163  LYS      2.8     2.0    +      -       -      -
    8173  GLN*     1.3    78.6    -      -       -      +
    8193  MET*     1.3    57.3    +      -       -      +
    8213  GLU*     3.8     0.5    -      -       -      -
    8223  GLU*     2.9    27.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 819 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8153  ARG      2.9    13.0    +      -       -      -
    8163  LYS      3.8     1.8    -      -       -      -
    8183  GLN*     1.3    74.3    -      -       -      +
    8203  ALA*     1.3    61.9    +      -       -      +
    8223  GLU*     4.5     2.2    -      -       -      +
    8233  MET*     2.9    21.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 820 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8163  LYS      3.0    14.2    +      -       -      -
    8173  GLN*     3.5     6.7    -      -       -      +
    8183  GLN      3.1     0.4    -      -       -      -
    8193  MET*     1.3    79.8    -      -       -      +
    8213  GLU*     1.3    64.2    +      -       -      +
    8233  MET*     3.3     7.1    +      -       -      -
    8243  VAL      3.8     3.3    +      -       -      -
    8393  ALA*     5.6    10.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 821 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8173  GLN      2.8    16.9    +      -       -      -
    8183  GLN      3.8     1.6    -      -       -      -
    8203  ALA*     1.3    70.0    -      -       -      +
    8223  GLU*     1.3    64.1    +      -       -      +
    8243  VAL*     2.8    19.4    +      -       -      -
    8253  GLU*     3.7     3.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 822 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8183  GLN      2.9    19.5    +      -       -      -
    8193  MET*     3.9     2.0    -      -       -      +
    8213  GLU*     1.3    70.7    -      -       -      +
    8233  MET*     1.3    64.7    +      -       -      +
    8253  GLU*     3.5    10.9    +      -       -      +
    8263  ALA      4.4     1.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 823 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8193  MET      2.9    19.3    +      -       -      -
    8203  ALA      3.8     2.9    -      -       -      -
    8213  GLU      2.8     1.6    +      -       -      -
    8223  GLU*     1.3    78.5    -      -       -      +
    8243  VAL*     1.3    63.3    +      -       -      +
    8253  GLU      2.9     1.7    +      -       -      -
    8263  ALA*     3.2    10.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 824 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8203  ALA      3.8     4.8    +      -       -      -
    8213  GLU      2.8    13.5    +      -       -      -
    8233  MET*     1.3    70.1    -      -       -      +
    8253  GLU*     1.3    56.4    +      -       -      +
    8263  ALA*     2.9     7.4    +      -       -      -
    8273  ALA*     3.1    13.7    +      -       -      -
    8343  LEU      4.3    15.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 825 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8213  GLU      3.7     4.7    +      -       -      -
    8223  GLU*     3.5     9.1    +      -       -      +
    8233  MET      2.9     3.0    +      -       -      -
    8243  VAL*     1.3    72.3    -      -       -      +
    8263  ALA*     1.3    63.9    +      -       -      +
    8273  ALA*     3.1     3.3    +      -       -      +
----------------------------------------------------------
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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