Contacts of the helix formed by residues 757 - 771 (chain A) in PDB entry 1WKB


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 PHE 757 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    675A  LEU*     4.1    12.6    -      -       +      -
    697A  LEU*     3.7    20.2    -      -       +      -
    700A  GLN*     3.9    34.1    -      -       +      -
    701A  ILE*     4.1     6.7    -      -       +      -
    704A  PHE*     3.9    23.8    -      +       +      -
    753A  VAL*     2.9    22.9    +      -       +      +
    756A  ALA*     1.3    80.8    -      -       -      +
    758A  TYR*     1.3    91.8    +      +       -      +
    759A  SER      3.5     1.1    +      -       -      -
    760A  ILE      3.6     1.6    +      -       -      -
    761A  MET*     3.1    33.2    +      -       +      +
    790A  TRP*     3.9    14.4    -      +       -      +
    794A  MET*     3.5    32.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 758 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    676A  TYR*     6.0     0.5    -      -       -      -
    679A  SER*     4.4    10.8    +      -       -      -
    697A  LEU*     3.7    22.0    -      -       +      +
    700A  GLN*     4.0    27.1    +      -       -      -
    753A  VAL*     3.2    31.1    +      -       +      -
    754A  GLN*     3.6    41.1    -      -       -      +
    757A  PHE*     1.3    96.8    -      +       -      +
    759A  SER*     1.3    57.3    +      -       -      +
    761A  MET*     3.3     5.8    +      -       +      +
    762A  ASN*     2.8    32.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 759 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    732A  ARG*     3.8     5.2    +      -       -      -
    736A  ALA*     5.1     2.8    -      -       -      +
    754A  GLN      2.8    20.5    +      -       -      -
    755A  TRP*     3.5    39.0    +      -       -      -
    757A  PHE      3.5     0.2    -      -       -      -
    758A  TYR*     1.3    73.0    -      -       -      +
    760A  ILE*     1.3    59.1    +      -       -      +
    762A  ASN*     3.3     5.1    +      -       -      +
    763A  ASP*     2.8    43.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 760 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    729A  MET*     5.6     1.3    -      -       +      -
    732A  ARG      6.2     0.4    -      -       -      -
    733A  LEU*     4.4    14.8    -      -       +      -
    736A  ALA*     3.9    15.9    -      -       +      -
    755A  TRP      3.7    10.0    +      -       -      +
    756A  ALA      3.6    16.6    -      -       -      +
    757A  PHE      3.6     2.8    +      -       -      +
    758A  TYR      3.4     0.2    -      -       -      -
    759A  SER*     1.3    74.6    -      -       -      +
    761A  MET*     1.3    60.8    +      -       -      +
    763A  ASP*     3.9     5.7    -      -       -      +
    764A  LEU*     2.8    32.7    +      -       -      +
    786A  LEU*     4.3    19.9    -      -       +      +
    789A  VAL*     4.8     1.1    -      -       +      -
    790A  TRP*     3.5    48.9    -      -       +      +
    793A  LEU*     3.8    26.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 761 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    700A  GLN*     3.5    35.9    -      -       +      +
    703A  ARG*     4.2     9.0    -      -       +      -
    704A  PHE*     3.9    15.7    -      -       +      +
    707A  LEU*     4.2    13.9    -      -       +      -
    757A  PHE*     3.1    32.5    +      -       +      +
    758A  TYR*     3.7     7.6    -      -       +      +
    760A  ILE*     1.3    77.5    -      -       -      +
    762A  ASN*     1.3    58.0    +      -       -      +
    764A  LEU*     3.7     4.1    -      -       -      +
    765A  ARG*     3.0    64.2    +      -       -      +
    790A  TRP*     3.8    27.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 762 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    758A  TYR      2.8    18.6    +      -       -      +
    759A  SER*     3.7     5.6    -      -       -      +
    761A  MET*     1.3    74.9    -      -       -      +
    763A  ASP*     1.3    73.4    +      -       -      +
    765A  ARG*     3.2    10.9    +      -       -      +
    766A  TRP*     3.2    22.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 763 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    728A  TRP*     3.4    31.5    -      -       +      -
    729A  MET*     3.9    15.0    -      -       +      -
    732A  ARG*     2.9    44.2    +      -       -      +
    759A  SER*     2.8    27.9    +      -       -      +
    760A  ILE*     3.9     3.4    -      -       -      +
    762A  ASN*     1.3    78.9    -      -       -      +
    764A  LEU*     1.3    58.1    +      -       -      +
    766A  TRP*     3.3     2.4    +      -       -      +
    767A  TYR*     2.9    28.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 764 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    707A  LEU*     3.9    21.3    -      -       +      -
    711A  PHE*     4.0    15.5    -      -       +      -
    729A  MET*     4.1     4.2    -      -       -      -
    760A  ILE      2.8    23.2    +      -       -      +
    761A  MET*     3.7     4.9    -      -       -      +
    763A  ASP*     1.3    74.2    -      -       -      +
    765A  ARG*     1.3    60.0    +      -       +      +
    767A  TYR*     3.2     8.7    +      -       +      +
    768A  LEU*     2.8    43.3    +      -       +      +
    783A  LEU*     3.7    30.1    -      -       +      -
    786A  LEU*     4.0    17.0    -      -       +      -
    790A  TRP*     3.7    27.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 765 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    700A  GLN*     5.3    11.9    -      -       -      +
    703A  ARG*     3.6    42.5    -      -       -      +
    707A  LEU*     6.2     0.7    -      -       +      -
    761A  MET*     3.0    53.2    +      -       -      +
    762A  ASN*     3.2     9.2    +      -       -      +
    764A  LEU*     1.3    78.8    -      -       +      +
    766A  TRP*     1.3    63.8    +      -       -      +
    768A  LEU*     3.4     8.9    +      -       +      +
    769A  ARG*     3.0    31.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with TRP 766 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    725A  ILE*     3.7    25.6    -      -       +      -
    728A  TRP*     3.3    46.2    -      +       +      -
    762A  ASN*     3.2    10.8    +      -       -      +
    763A  ASP*     3.7     6.3    -      -       -      +
    765A  ARG*     1.3    77.0    -      -       -      +
    767A  TYR*     1.3    64.9    +      -       -      +
    769A  ARG*     3.0    17.6    +      -       +      +
    770A  ARG*     2.8    56.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 767 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    725A  ILE*     3.6    28.9    -      -       +      -
    726A  ASP*     2.6    29.5    +      -       -      -
    728A  TRP*     4.0     6.7    -      +       +      -
    729A  MET*     3.7    34.1    -      -       +      -
    763A  ASP      2.9    15.3    +      -       -      +
    764A  LEU*     3.2     9.6    +      -       +      +
    766A  TRP*     1.3    77.6    -      -       -      +
    768A  LEU*     1.3    62.2    +      -       +      +
    770A  ARG*     3.4     4.9    +      -       -      +
    771A  THR*     2.8    48.2    +      -       +      +
    774A  ARG*     4.2     0.7    +      -       -      -
    779A  LYS*     3.6    18.9    -      -       +      +
    782A  VAL*     3.6    18.1    -      -       +      +
    783A  LEU*     3.7    34.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 768 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    703A  ARG*     4.9     9.2    -      -       -      +
    707A  LEU*     4.4    21.1    -      -       +      -
    711A  PHE*     4.7     4.7    -      -       +      -
    764A  LEU*     2.8    49.7    +      -       +      +
    765A  ARG*     3.8     8.1    -      -       +      +
    766A  TRP      3.2     0.2    -      -       -      -
    767A  TYR*     1.3    80.2    -      -       +      +
    769A  ARG*     1.3    62.1    +      -       +      +
    771A  THR*     3.4     3.1    +      -       -      -
    772A  GLU*     3.0    28.9    +      -       -      +
    779A  LYS*     4.4    11.6    +      -       -      +
    783A  LEU*     4.1    19.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 769 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    765A  ARG*     3.0    21.4    +      -       +      +
    766A  TRP*     3.0    19.1    +      -       +      +
    768A  LEU*     1.3    75.5    -      -       +      +
    770A  ARG*     1.3    66.5    +      -       +      +
    771A  THR      3.2     1.2    +      -       -      -
    772A  GLU*     3.2    21.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 770 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    725A  ILE*     4.1    24.3    -      -       +      +
    766A  TRP*     2.8    61.3    +      -       +      +
    767A  TYR      3.8     4.7    -      -       -      +
    769A  ARG*     1.3    77.4    -      -       -      +
    771A  THR*     1.3    60.0    +      -       -      +
    772A  GLU      3.5     1.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 771 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    725A  ILE*     3.9    17.5    -      -       +      -
    767A  TYR*     2.8    34.6    +      -       +      +
    768A  LEU*     3.6     5.8    -      -       -      -
    769A  ARG      3.1     0.2    -      -       -      -
    770A  ARG*     1.3    79.3    -      -       -      +
    772A  GLU*     1.3    68.0    +      -       -      +
    774A  ARG*     3.0    47.0    +      -       -      +
    779A  LYS*     3.0    37.7    +      -       -      -
----------------------------------------------------------
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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