Contacts of the helix formed by residues 605 - 612 (chain A) in PDB entry 3BK0


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 LEU 605 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    465A  ILE*     5.3     0.7    -      -       +      -
    466A  PRO*     3.7    26.2    -      -       +      -
    469A  GLU*     3.7    40.2    -      -       +      +
    601A  LYS      4.8     0.2    +      -       -      -
    602A  ALA      4.8     1.8    +      -       -      -
    603A  LYS      3.3     0.8    -      -       -      -
    604A  PHE*     1.3    80.7    -      -       +      +
    606A  GLN*     1.3    64.1    +      -       -      +
    607A  GLU      3.3     0.7    -      -       -      -
    608A  ALA*     3.1     7.1    +      -       +      +
    609A  ARG*     3.0    23.8    +      -       -      +
    625A  VAL*     3.7    27.8    -      -       +      -
    627A  THR*     4.0    13.0    -      -       +      -
    632A  ILE*     4.0    18.6    -      -       +      -
    634A  ILE*     4.1    14.4    -      -       +      -
    823A  EDO      4.1    13.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 606 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    603A  LYS*     3.0    21.3    +      -       +      +
    604A  PHE      3.2     0.2    -      -       -      -
    605A  LEU*     1.3    75.8    -      -       -      +
    607A  GLU*     1.3    64.7    +      -       -      +
    609A  ARG*     3.0    40.8    +      -       -      +
    610A  ILE*     3.0    43.5    +      -       +      +
    702A  PHE      4.4     1.8    -      -       -      +
    703A  GLY      3.9     9.6    -      -       -      +
    705A  SER      2.9    29.3    +      -       -      +
    706A  ARG*     3.7    25.4    -      -       -      +
    707A  GLU      4.8     0.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 607 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    590A  LYS*     2.6    41.1    +      -       +      +
    604A  PHE      4.0     2.4    +      -       -      -
    605A  LEU      3.3     0.8    -      -       -      -
    606A  GLN*     1.3    77.7    -      -       -      +
    608A  ALA*     1.3    58.5    +      -       -      +
    610A  ILE*     3.6     1.3    +      -       -      +
    611A  LEU*     3.0    46.9    +      -       +      +
    620A  VAL*     6.1     0.2    -      -       -      +
    634A  ILE*     4.3    11.9    -      -       +      -
    636A  MET*     4.0    13.4    -      -       -      +
    700A  SER*     4.7     0.9    +      -       -      -
    701A  ASP*     3.7     8.0    +      -       -      -
    702A  PHE*     2.8    51.0    +      -       +      +
    703A  GLY*     3.7     2.3    +      -       -      -
    826A  STU      3.3    19.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 608 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    605A  LEU*     3.1    10.8    +      -       +      +
    607A  GLU*     1.3    76.9    -      -       -      +
    609A  ARG*     1.3    65.1    +      -       -      +
    612A  LYS*     2.9    32.5    +      -       -      +
    622A  LEU*     3.8    11.4    -      -       +      +
    625A  VAL*     3.6    32.8    -      -       +      -
    634A  ILE*     4.2    19.0    -      -       +      +
    823A  EDO      4.0     8.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 609 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    469A  GLU*     3.1    32.5    +      -       -      +
    472A  GLU*     4.5    19.6    -      -       -      +
    602A  ALA      4.8     7.1    +      -       -      -
    603A  LYS*     5.6     0.6    -      -       -      +
    605A  LEU      3.0     7.4    +      -       -      +
    606A  GLN*     3.0    48.5    +      -       -      +
    608A  ALA*     1.3    76.0    -      -       -      +
    610A  ILE*     1.3    63.3    +      -       +      +
    612A  LYS*     3.9     7.7    -      -       -      +
    613A  GLN*     3.4    20.3    +      -       -      +
    823A  EDO      3.6    34.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 610 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    606A  GLN*     3.0    40.9    +      -       -      +
    607A  GLU*     3.8     4.0    -      -       -      +
    609A  ARG*     1.3    79.0    -      -       +      +
    611A  LEU*     1.3    64.7    +      -       +      +
    613A  GLN*     3.2    26.9    +      -       -      +
    614A  TYR*     3.3    37.0    -      -       +      +
    679A  CYS*     4.3     3.6    -      -       -      -
    702A  PHE*     3.9    13.2    -      -       +      -
    705A  SER*     3.5    26.2    -      -       -      +
    706A  ARG      4.5     2.2    -      -       -      -
    707A  GLU*     4.0    35.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 611 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    554A  TRP*     5.4     1.2    -      -       -      -
    607A  GLU*     3.0    46.5    +      -       +      +
    608A  ALA      4.4     0.2    -      -       -      +
    610A  ILE*     1.3    70.6    -      -       -      +
    612A  LYS*     1.3    65.2    +      -       -      +
    613A  GLN      3.0     3.7    +      -       -      -
    614A  TYR*     3.1    33.0    +      -       +      +
    619A  ILE*     3.8    29.2    -      -       +      -
    620A  VAL*     3.8    17.7    -      -       +      +
    622A  LEU*     4.0    28.0    +      -       +      +
    636A  MET*     4.3    14.8    -      -       +      -
    702A  PHE*     3.8    24.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 612 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    552A  ASP*     2.8    28.3    +      -       -      +
    554A  TRP*     3.5    53.9    +      -       +      +
    555A  VAL*     6.2     0.2    -      -       -      +
    608A  ALA      2.9    24.3    +      -       -      +
    609A  ARG*     3.9     8.5    -      -       -      +
    610A  ILE      3.3     0.2    -      -       -      -
    611A  LEU*     1.3    76.0    -      -       -      +
    613A  GLN*     1.3    62.0    +      -       +      +
    614A  TYR      3.6     1.9    +      -       -      +
    622A  LEU*     3.4    18.0    -      -       +      +
    625A  VAL*     4.3     6.5    -      -       -      -
    823A  EDO      2.8    46.1    +      -       -      +
----------------------------------------------------------
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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