Contacts of the strand formed by residues 842 - 848 (chain A) in PDB entry 1HXK


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 842 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    706A  VAL*     5.1    10.2    -      -       +      +
    798A  ILE*     3.8    21.7    -      -       +      +
    838A  GLU*     3.1     3.6    -      -       -      +
    839A  ASP*     2.7    42.6    +      -       -      +
    841A  ASN*     1.3    76.1    -      -       -      +
    843A  ARG*     1.3    63.9    +      -       -      +
    896A  LEU*     3.5    29.4    -      -       +      -
    897A  GLU      3.5     7.2    -      -       -      +
    898A  LYS*     2.9    24.1    +      -       +      +
    899A  VAL*     3.9     2.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 843 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    798A  ILE*     4.1     3.4    -      -       -      -
    836A  PHE*     3.5    29.8    -      -       +      -
    837A  ILE      3.3    13.5    -      -       -      +
    838A  GLU*     2.9    35.4    +      -       +      -
    842A  THR*     1.3    76.0    -      -       -      +
    844A  LEU*     1.3    63.4    +      -       -      +
    845A  THR*     3.4    22.0    +      -       -      +
    895A  VAL      3.7     0.5    -      -       -      +
    896A  LEU*     3.5     5.4    -      -       -      +
    897A  GLU*     2.9    43.1    +      -       +      +
    899A  VAL*     3.7    20.2    -      -       +      +
    904A  ARG*     4.2     1.6    -      -       -      +
    905A  PRO*     6.2     0.4    -      -       -      +
    912A  GLY*     5.7     0.2    -      -       -      -
    913A  TYR      2.7    29.1    +      -       -      +
    914A  LEU*     3.9     9.1    -      -       -      +
    915A  THR*     4.2     5.6    -      -       -      +
    918A  ALA*     6.0     0.2    -      -       -      +
    985A  MET*     3.1    33.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 844 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    697A  ILE*     5.1     0.2    -      -       +      -
    708A  VAL*     4.1    13.9    -      -       +      -
    794A  LEU*     4.0    24.9    -      -       +      -
    796A  THR*     3.7    27.6    -      -       +      -
    798A  ILE*     3.7    15.6    -      -       +      +
    836A  PHE*     3.1     4.0    -      -       -      +
    837A  ILE*     3.0    33.5    +      -       +      -
    843A  ARG*     1.3    73.9    -      -       -      +
    845A  THR*     1.3    62.0    +      -       -      +
    862A  LEU*     3.7    12.8    -      -       +      +
    894A  LEU*     3.7    24.7    -      -       +      -
    895A  VAL      3.4    15.0    -      -       -      +
    896A  LEU*     3.8    22.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 845 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    835A  MET      3.4    13.9    -      -       -      +
    836A  PHE*     3.3    15.7    -      -       +      +
    843A  ARG*     3.4    19.2    +      -       -      +
    844A  LEU*     1.3    73.8    -      -       -      +
    846A  LEU*     1.3    62.2    +      -       -      +
    847A  LEU*     3.7    31.5    -      -       +      +
    893A  ARG      3.7     1.4    -      -       -      +
    894A  LEU*     3.6     6.3    -      -       -      +
    895A  VAL*     2.8    48.3    +      -       -      +
    897A  GLU*     4.6     2.1    +      -       -      -
    914A  LEU*     4.0    15.9    -      -       +      -
    918A  ALA*     4.3     8.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 846 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    710A  PHE*     4.9     3.8    -      -       +      -
    776A  ILE*     5.3     0.2    -      -       +      -
    792A  MET*     4.4     9.9    -      -       +      -
    794A  LEU*     4.5    12.8    -      -       +      -
    834A  GLY*     3.3     2.6    -      -       -      -
    835A  MET*     2.8    54.0    +      -       +      +
    844A  LEU      4.2     0.4    -      -       -      -
    845A  THR*     1.3    73.7    -      -       -      +
    847A  LEU*     1.3    60.4    +      -       -      +
    848A  THR*     4.4     2.1    -      -       +      +
    862A  LEU*     4.4    11.2    -      -       +      +
    863A  GLU      5.9     0.9    -      -       -      +
    864A  ILE*     3.9    29.8    -      -       +      -
    892A  TYR*     3.8    29.8    -      -       +      -
    893A  ARG      3.5    14.4    -      -       -      +
    894A  LEU*     4.0    20.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 847 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    813A  PHE*     4.8     2.0    -      -       +      -
    833A  SER*     3.5    11.7    -      -       -      +
    834A  GLY*     4.3     4.7    -      -       -      -
    845A  THR*     3.7    31.0    -      -       +      +
    846A  LEU*     1.3    75.9    -      -       -      +
    848A  THR*     1.3    60.7    +      -       -      +
    892A  TYR*     3.1    28.9    -      -       -      +
    893A  ARG*     2.9    20.1    +      -       +      +
    895A  VAL*     3.8    22.0    -      -       +      -
    914A  LEU*     4.3    12.3    -      -       +      -
    918A  ALA*     3.6    24.0    -      -       -      +
    921A  ALA*     4.1     4.0    -      -       +      -
    922A  SER*     3.9    19.5    -      -       -      +
    925A  LEU*     3.7    15.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 848 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    831A  ILE*     3.8    14.8    +      -       +      +
    832A  PRO      3.6     0.5    +      -       -      +
    833A  SER*     2.9    33.7    +      -       -      +
    846A  LEU*     4.4     5.2    -      -       +      +
    847A  LEU*     1.3    78.5    -      -       -      +
    849A  GLY*     1.3    60.5    +      -       -      +
    850A  GLN*     2.8    30.1    +      -       -      +
    864A  ILE*     3.6    30.3    -      -       +      -
    891A  ILE      3.7     3.4    -      -       -      -
    892A  TYR*     3.8     8.5    -      -       +      -
    922A  SER*     5.3     1.4    +      -       -      -
    925A  LEU*     3.7     9.7    -      -       -      +
    926A  LEU*     4.1    12.8    -      -       -      +
----------------------------------------------------------
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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