Contacts of the helix formed by residues 826 - 845 (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 826 (chain 1).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8221  ARG      4.0     3.6    +      -       -      -
    8231  MET      2.8    12.2    +      -       -      +
    8241  ALA      2.8    17.7    -      -       -      +
    8251  LEU*     1.3    77.2    -      -       -      +
    8271  ARG*     1.3    65.3    +      -       -      +
    8291  ASN      4.6     2.9    -      -       -      +
    8301  TYR*     3.7     6.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 827 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8251  LEU      3.9     0.8    +      -       -      -
    8261  ASP*     1.3    70.7    -      -       -      +
    8281  ARG*     1.3    68.7    +      -       -      +
    8291  ASN      4.4     0.2    -      -       -      +
    8301  TYR*     2.9    13.3    +      -       -      -
    8311  ARG      3.2     7.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 828 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8271  ARG*     1.3    70.3    -      -       -      +
    8291  ASN*     1.3    54.9    +      -       -      +
    8311  ARG*     2.6    25.9    +      -       -      +
    8321  GLN*     2.8    12.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ASN 829 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7861  LYS*     6.6     0.2    -      -       -      +
    8231  MET*     5.2     9.4    -      -       -      +
    8261  ASP*     4.6     2.1    -      -       -      +
    8271  ARG      3.2     2.8    -      -       -      +
    8281  ARG*     1.3    73.0    -      -       -      +
    8301  TYR*     1.3    66.9    +      -       -      +
    8321  GLN*     4.5     1.8    -      -       -      +
    8331  LEU*     2.9    20.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 830 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8231  MET      4.8     3.2    +      -       -      -
    8241  ALA*     4.7    12.3    -      -       -      +
    8261  ASP      3.7    10.6    +      -       -      -
    8271  ARG      2.9    11.7    +      -       -      -
    8291  ASN*     1.3    78.1    -      -       -      +
    8311  ARG*     1.3    67.7    +      -       -      +
    8331  LEU*     3.5     0.7    -      -       -      -
    8341  VAL*     3.0    13.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 831 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8271  ARG      3.2     6.3    +      -       -      -
    8281  ARG*     2.6    11.9    +      -       -      +
    8301  TYR*     1.3    70.7    -      -       -      +
    8321  GLN*     1.3    63.7    +      -       -      +
    8341  VAL*     2.6    17.9    +      -       -      +
    8351  ASP*     3.0     9.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 832 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8281  ARG      2.8    15.7    +      -       -      -
    8291  ASN*     4.0     2.0    -      -       -      +
    8311  ARG*     1.3    68.3    -      -       -      +
    8331  LEU*     1.3    64.8    +      -       -      +
    8351  ASP*     3.2     3.3    +      -       -      +
    8361  THR*     2.9    16.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 833 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8291  ASN      2.9    15.0    +      -       -      -
    8301  TYR      3.5     3.6    -      -       -      -
    8311  ARG      2.7     0.6    +      -       -      -
    8321  GLN*     1.3    74.9    -      -       -      +
    8341  VAL*     1.3    65.5    +      -       -      +
    8361  THR*     2.6    15.7    +      -       -      +
    8371  THR*     3.0     9.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 834 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8301  TYR      3.0     7.9    +      -       -      -
    8311  ARG*     2.6    12.6    +      -       -      +
    8331  LEU*     1.3    69.9    -      -       -      +
    8351  ASP*     1.3    66.8    +      -       -      +
    8371  THR*     3.3     1.7    +      -       -      +
    8381  VAL*     2.9    17.3    +      -       -      -
    8711  THR*     5.6    11.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 835 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8311  ARG      3.0    11.2    +      -       -      -
    8321  GLN*     3.6     3.6    -      -       -      +
    8341  VAL*     1.3    74.1    -      -       -      +
    8361  THR*     1.3    66.2    +      -       -      +
    8381  VAL*     2.7    13.9    +      -       -      +
    8391  GLU*     3.0     8.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 836 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7891  LEU      5.8     2.7    -      -       -      -
    7931  LYS*     5.1    17.6    -      -       -      +
    8321  GLN      2.9    10.0    +      -       -      -
    8331  LEU*     2.6    13.2    +      -       -      +
    8351  ASP*     1.3    70.2    -      -       -      +
    8371  THR*     1.3    63.1    +      -       -      +
    8391  GLU*     2.8    12.9    +      -       -      +
    8401  LEU*     3.0    10.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 837 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8331  LEU      3.0    11.0    +      -       -      -
    8341  VAL*     3.8     2.2    -      -       -      +
    8361  THR*     1.3    75.5    -      -       -      +
    8381  VAL*     1.3    64.1    +      -       -      +
    8401  LEU*     3.1     4.2    +      -       -      +
    8411  ALA*     3.0    17.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 838 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8341  VAL      2.9     9.4    +      -       -      -
    8351  ASP*     2.7    15.9    +      -       -      +
    8371  THR*     1.3    71.8    -      -       -      +
    8391  GLU*     1.3    56.6    +      -       -      +
    8411  ALA*     2.8    18.6    +      -       -      +
    8421  ASN*     2.9    10.0    +      -       -      -
    8751  ILE*     6.0     6.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 839 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7931  LYS*     6.4     1.6    -      -       -      +
    7961  CYS      5.2     5.4    -      -       -      +
    7971  GLY*     5.8     4.4    -      -       -      -
    8351  ASP      3.0     7.6    +      -       -      -
    8361  THR      2.8     8.0    +      -       -      -
    8381  VAL*     1.3    76.1    -      -       -      +
    8401  LEU*     1.3    63.0    +      -       -      +
    8421  ASN*     3.1    12.8    +      -       -      +
    8431  LYS*     3.5     7.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 840 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    7961  CYS      5.7     3.1    -      -       -      -
    8361  THR      3.0    12.4    +      -       -      -
    8371  THR*     3.1     4.5    +      -       -      +
    8391  GLU*     1.3    75.4    -      -       -      +
    8411  ALA*     1.3    62.2    +      -       -      +
    8431  LYS*     3.4     1.3    +      -       -      +
    8441  VAL*     3.0    22.2    +      -       -      -
    8451  GLY      4.5     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 841 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8371  THR      3.0     8.4    +      -       -      -
    8381  VAL*     2.8    10.8    +      -       -      +
    8401  LEU*     1.3    72.3    -      -       -      +
    8421  ASN*     1.3    51.4    +      -       -      +
    8431  LYS      2.4    19.2    +      -       -      -
    8451  GLY*     2.9    40.2    +      -       -      +
    8461  ALA*     5.4     0.9    -      -       -      +
    8491  ILE*     6.1     3.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 842 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8381  VAL      2.9    12.2    +      -       -      -
    8391  GLU*     3.1     8.0    +      -       -      +
    8411  ALA*     1.3    72.1    -      -       -      +
    8431  LYS*     1.3    56.6    +      -       -      +
    8791  LEU*     6.6     0.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 843 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8031  ALA*     6.3     0.9    -      -       -      -
    8391  GLU      3.5     6.1    +      -       -      -
    8401  LEU      3.4     3.1    +      -       -      -
    8411  ALA      2.4     9.5    +      -       -      +
    8421  ASN*     1.3    76.3    -      -       -      +
    8441  VAL*     1.3    53.6    +      -       -      +
    8451  GLY*     2.7    17.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 844 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8031  ALA*     5.8     9.4    -      -       -      +
    8401  LEU      3.0    16.0    +      -       -      -
    8431  LYS*     1.3    68.9    -      -       -      +
    8451  GLY*     1.3    59.2    +      -       -      +
    8481  GLU*     5.5     4.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 845 (chain 1). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    8411  ALA*     2.9    28.1    +      -       -      +
    8431  LYS      2.7     8.3    +      -       -      -
    8441  VAL*     1.3    82.5    -      -       -      +
    8461  ALA*     1.3    60.2    +      -       -      +
    8481  GLU*     4.6     3.4    -      -       -      -
    8491  ILE      4.7     4.0    +      -       -      -
----------------------------------------------------------
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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