Contacts of the helix formed by residues 548 - 563 (chain F) in PDB entry 5KHU


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 LYS 548 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    547F  GLN*     3.8    28.9    -      -       -      +
    549F  ASP*     3.8    25.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 549 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    548F  LYS*     3.8    26.7    -      -       -      +
    550F  VAL*     3.8    29.4    -      -       -      +
    552F  LEU*     4.5    18.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 550 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    549F  ASP*     3.8    29.4    -      -       -      +
    551F  ALA*     3.8    26.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 551 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    550F  VAL*     3.8    24.7    -      -       -      +
    552F  LEU*     3.8    30.1    -      -       -      +
    554F  VAL*     4.3    17.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 552 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    549F  ASP*     4.5    16.8    -      -       -      +
    551F  ALA*     3.8    25.8    -      -       -      +
    553F  SER*     3.7    29.4    -      -       -      +
    555F  LEU*     4.5    15.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 553 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    552F  LEU*     3.7    29.4    -      -       -      +
    554F  VAL*     3.8    23.8    -      -       -      +
    556F  SER*     4.5    15.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 554 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    551F  ALA*     4.3    19.1    -      -       -      +
    553F  SER*     3.8    25.4    -      -       -      +
    555F  LEU*     3.8    29.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 555 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    552F  LEU*     4.5    13.5    -      -       -      +
    554F  VAL*     3.8    29.4    -      -       -      +
    556F  SER*     3.8    26.0    -      -       -      +
    558F  ASP*     4.4    17.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 556 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    553F  SER*     4.5    17.7    -      -       -      +
    555F  LEU*     3.8    29.6    -      -       -      +
    557F  LYS*     3.8    27.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 557 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    556F  SER*     3.8    28.9    -      -       -      +
    558F  ASP*     3.8    26.2    -      -       -      +
    560F  THR*     4.7    16.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 558 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    555F  LEU*     4.4    19.3    -      -       -      +
    557F  LYS*     3.8    24.2    -      -       -      +
    559F  LEU*     3.8    29.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 559 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    558F  ASP*     3.8    29.6    -      -       -      +
    560F  THR*     3.8    26.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 560 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    557F  LYS*     4.7    15.3    -      -       -      +
    559F  LEU*     3.8    29.2    -      -       -      +
    561F  ASP*     3.8    27.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 561 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    560F  THR*     3.8    28.7    -      -       -      +
    562F  MET*     3.7    29.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 562 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    561F  ASP*     3.7    29.4    -      -       -      +
    563F  ASP*     3.8    27.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 563 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    562F  MET*     3.8    28.9    -      -       -      +
    564F  LYS*     3.8    29.2    -      -       -      +
----------------------------------------------------------
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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