Contacts of the helix formed by residues 2409 - 2417 (chain C) in PDB entry 1KY5


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 THR2409 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2407C  LYS      4.6     3.4    -      -       -      +
   2408C  LEU*     1.3    75.3    -      -       -      +
   2410C  GLU*     1.3    69.1    +      -       -      +
   2411C  LYS*     3.6    11.2    +      -       -      +
   2412C  GLN*     2.8    44.5    +      -       -      +
   2413C  ALA      2.8    13.3    +      -       -      -
   2420C  ILE*     2.6    14.1    -      -       -      +
   3279D  ASP*     5.0     1.2    +      -       -      -
   3284D  ARG*     6.3     0.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU2410 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2409C  THR*     1.3    71.4    -      -       -      +
   2411C  LYS*     1.3    63.1    +      -       -      +
   2413C  ALA*     3.8    11.8    -      -       -      +
   2414C  GLN*     2.5    52.3    +      -       -      +
   2420C  ILE*     3.2    15.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS2411 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2409C  THR*     2.9    10.2    +      -       -      +
   2410C  GLU*     1.3    80.1    -      -       -      +
   2412C  GLN*     1.3    57.1    +      -       -      +
   2414C  GLN*     3.2    13.3    -      -       -      +
   2415C  TYR*     3.0    24.3    +      -       -      +
   3278D  VAL*     5.0     7.9    -      -       +      -
   3279D  ASP*     3.2    35.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN2412 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2406C  THR*     5.8     0.8    -      -       -      +
   2407C  LYS      3.7     5.3    +      -       -      -
   2408C  LEU*     3.0    30.3    -      -       +      +
   2409C  THR*     2.8    55.0    +      -       -      +
   2411C  LYS*     1.3    68.7    -      -       -      +
   2413C  ALA*     1.3    64.8    +      -       -      +
   2414C  GLN      2.7     5.8    +      -       -      -
   2415C  TYR*     2.7    20.9    +      -       -      +
   2416C  LEU*     3.0    15.6    +      -       -      +
   3277D  CYS*     3.8    15.9    -      -       -      -
   3278D  VAL*     2.7    30.9    -      -       +      +
   3279D  ASP*     3.5    19.8    -      -       -      +
   3432D  NAI      4.0     8.8    +      -       -      -
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Residues in contact with ALA2413 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2408C  LEU*     4.1    11.7    -      -       -      +
   2409C  THR      2.8     9.5    +      -       -      +
   2410C  GLU*     3.7    11.0    -      -       -      +
   2412C  GLN*     1.3    72.9    -      -       -      +
   2414C  GLN*     1.3    57.2    +      -       -      +
   2416C  LEU*     5.2     1.3    -      -       -      -
   2417C  GLY*     2.9    19.2    +      -       -      -
   2418C  MET      2.8    22.7    +      -       -      +
   2420C  ILE*     3.3    51.8    -      -       +      +
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Residues in contact with GLN2414 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2410C  GLU*     2.5    49.7    +      -       -      +
   2411C  LYS*     3.2    14.8    -      -       -      +
   2412C  GLN      2.7     1.0    +      -       -      -
   2413C  ALA*     1.3    74.0    -      -       -      +
   2415C  TYR*     1.3    69.7    +      -       -      +
   2417C  GLY*     2.7    18.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR2415 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2411C  LYS      3.0     6.4    +      -       -      +
   2412C  GLN      2.7    12.2    +      -       -      +
   2414C  GLN*     1.3    76.9    -      -       -      +
   2416C  LEU*     1.3    66.6    +      -       +      +
   3165D  LYS*     3.9    13.5    +      -       -      -
   3276D  GLY      4.2    13.7    -      -       -      -
   3277D  CYS*     4.1     6.7    -      -       -      -
   3278D  VAL*     3.4    57.9    -      -       +      -
   3301D  PHE*     4.9    12.3    -      -       -      +
   3303D  VAL*     3.5    17.4    -      -       +      +
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Residues in contact with LEU2416 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2408C  LEU*     3.9    24.7    -      -       +      -
   2412C  GLN      3.0     8.7    +      -       -      +
   2413C  ALA      4.4     0.2    -      -       -      +
   2414C  GLN      2.9     0.4    +      -       -      -
   2415C  TYR*     1.3    83.8    -      -       +      +
   2417C  GLY*     1.3    60.5    +      -       -      +
   2418C  MET*     3.3    31.9    -      -       +      +
   2424C  PHE*     5.5     0.9    -      -       +      -
   3161D  HIS*     2.9    39.8    +      -       +      +
   3165D  LYS*     3.4    10.7    -      -       -      +
   3243D  ILE*     5.3     2.5    -      -       +      -
   3276D  GLY      3.9    13.9    -      -       -      +
   3277D  CYS*     3.3    37.9    -      -       +      -
   3432D  NAI      4.8    10.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY2417 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2413C  ALA      2.9     4.0    +      -       -      -
   2414C  GLN*     2.7    19.8    +      -       -      -
   2416C  LEU*     1.3    75.1    -      -       -      +
   2418C  MET*     1.3    70.1    +      -       -      +
   3165D  LYS*     4.8     6.7    -      -       -      -
----------------------------------------------------------
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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