Contacts of the helix formed by residues 182 - 194 (chain E) in PDB entry 4KYI


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 SER 182 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178E  ASN      4.7     5.4    -      -       -      -
    179E  LEU      3.3     8.3    +      -       -      +
    180E  THR      3.1     1.2    -      -       -      -
    181E  LYS*     1.3    81.5    -      -       -      +
    183E  VAL*     1.3    57.6    +      -       -      +
    184E  LYS*     3.2    19.2    -      -       -      +
    185E  ASP*     2.7    42.9    +      -       -      -
    186E  LEU*     3.2    29.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 183 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117E  ARG*     5.2    11.7    -      -       -      +
    181E  LYS      5.5     1.6    -      -       -      +
    182E  SER*     1.3    73.0    -      -       -      +
    184E  LYS*     1.3    75.1    +      -       +      +
    186E  LEU*     3.6     9.1    -      -       +      +
    187E  GLU*     3.2    44.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 184 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181E  LYS      5.3     1.0    +      -       -      -
    182E  SER*     3.2    21.0    +      -       -      +
    183E  VAL*     1.3   109.4    -      -       +      +
    185E  ASP*     1.3    64.9    +      -       -      +
    186E  LEU      3.1     1.6    -      -       -      -
    187E  GLU*     3.0    12.1    +      -       -      +
    188E  LYS*     2.9    42.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 185 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    168E  ILE*     3.8     9.5    -      -       +      +
    178E  ASN      5.5     0.7    -      -       -      +
    179E  LEU*     4.3    23.8    -      -       +      +
    182E  SER*     2.7    27.9    +      -       -      +
    184E  LYS*     1.3    81.5    -      -       -      +
    186E  LEU*     1.3    57.9    +      -       -      +
    188E  LYS*     3.3    25.3    +      -       -      +
    189E  LEU*     2.9    28.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 186 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102E  LYS      4.3    10.5    -      -       -      +
    103E  LEU*     5.1     1.1    -      -       +      -
    117E  ARG*     3.4    46.0    -      -       +      +
    121E  ILE*     4.7     6.3    -      -       +      -
    179E  LEU*     3.2    37.0    -      -       +      +
    180E  THR*     3.9    25.8    -      -       +      +
    182E  SER      3.2    20.4    +      -       -      +
    183E  VAL*     3.6    10.5    -      -       +      +
    184E  LYS      3.1     0.2    -      -       -      -
    185E  ASP*     1.3    78.5    -      -       -      +
    187E  GLU*     1.3    57.3    +      -       -      +
    189E  LEU*     3.5     5.9    +      -       +      +
    190E  ASP*     2.9    34.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 187 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117E  ARG*     4.6    12.1    -      -       -      +
    183E  VAL*     3.2    23.9    +      -       +      +
    184E  LYS*     3.0    13.8    +      -       -      +
    186E  LEU*     1.3    77.2    -      -       -      +
    188E  LYS*     1.3    62.8    +      -       +      +
    189E  LEU      3.2     0.2    -      -       -      -
    190E  ASP*     3.6     6.5    +      -       -      +
    191E  LYS*     3.2    24.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 188 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166E  ALA*     3.2    40.5    -      -       +      +
    168E  ILE*     4.0     8.5    -      -       +      -
    184E  LYS*     2.9    27.5    +      -       -      +
    185E  ASP*     3.3    31.9    +      -       -      +
    187E  GLU*     1.3    77.4    -      -       +      +
    189E  LEU*     1.3    61.8    +      -       -      +
    191E  LYS*     3.6     6.7    +      -       -      +
    192E  ALA*     3.2    24.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 189 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117E  ARG*     4.9     1.3    -      -       +      +
    120E  ASN*     4.1    20.6    -      -       +      +
    121E  ILE*     3.8    30.7    -      -       +      -
    124E  VAL*     3.8    10.1    -      -       +      -
    163E  LEU*     3.8    21.1    -      -       +      -
    168E  ILE*     3.7    11.4    -      -       +      +
    179E  LEU*     3.8    15.5    -      -       +      -
    185E  ASP      2.9    16.4    +      -       -      +
    186E  LEU*     3.6     9.0    -      -       +      +
    187E  GLU      3.2     0.2    -      -       -      -
    188E  LYS*     1.3    75.7    -      -       -      +
    190E  ASP*     1.3    70.1    +      -       -      +
    192E  ALA*     3.3     2.6    +      -       -      +
    193E  LEU*     3.1    46.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 190 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105E  ASP*     3.7    19.8    -      -       -      +
    114E  ARG*     5.6     1.0    -      -       -      -
    116E  ASP*     4.1     4.3    -      -       -      +
    117E  ARG*     3.7    30.2    +      -       -      +
    120E  ASN*     3.7    19.1    +      -       -      +
    186E  LEU      2.9    19.1    +      -       -      +
    187E  GLU*     4.0     5.8    -      -       -      +
    188E  LYS      3.4     0.2    -      -       -      -
    189E  LEU*     1.3    80.6    -      -       -      +
    191E  LYS*     1.3    63.2    +      -       -      +
    194E  ASN*     2.9    41.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 191 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    166E  ALA*     6.6     0.7    -      -       +      -
    187E  GLU      3.2    16.9    +      -       -      +
    188E  LYS*     3.8     8.1    -      -       -      +
    189E  LEU      3.3     0.2    -      -       -      -
    190E  ASP*     1.3    79.7    -      -       -      +
    192E  ALA*     1.3    63.4    +      -       -      +
    194E  ASN*     4.8     2.0    -      -       -      +
    195E  SER*     4.0    13.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 192 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    162E  LYS*     3.2    43.0    -      -       +      +
    163E  LEU*     4.9     3.8    -      -       +      -
    165E  ARG*     5.9     0.4    -      -       +      -
    166E  ALA*     4.4     6.3    -      -       +      -
    188E  LYS      3.2    18.2    +      -       -      +
    189E  LEU*     3.7     5.4    -      -       -      +
    190E  ASP      3.2     0.2    -      -       -      -
    191E  LYS*     1.3    76.5    -      -       -      +
    193E  LEU*     1.3    62.8    +      -       +      +
    195E  SER*     2.2    32.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 193 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120E  ASN*     3.3    47.8    -      -       +      +
    123E  ASP*     4.3    13.0    -      -       +      +
    124E  VAL*     4.1     8.5    -      -       +      -
    159E  TYR*     4.4    17.9    -      -       +      +
    162E  LYS*     3.9    21.8    -      -       +      -
    163E  LEU*     4.6     8.1    -      -       +      -
    189E  LEU*     3.1    28.5    +      -       +      +
    192E  ALA*     1.3    75.7    -      -       +      +
    194E  ASN*     1.3    56.1    +      -       -      +
    195E  SER      3.0     5.6    -      -       -      -
    196E  ILE*     3.0    35.7    +      -       +      +
    212E  ARG*     3.1    19.3    +      -       -      +
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Residues in contact with ASN 194 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114E  ARG*     5.7     0.6    -      -       -      +
    116E  ASP*     3.9    17.8    +      -       -      +
    119E  ARG*     3.3    31.0    +      -       -      -
    120E  ASN*     3.5     7.1    +      -       -      +
    190E  ASP*     2.9    39.3    +      -       -      +
    191E  LYS*     4.8     2.9    -      -       -      +
    193E  LEU*     1.3    76.1    -      -       -      +
    195E  SER*     1.3    60.1    +      -       -      +
    196E  ILE      3.1     8.8    +      -       -      +
    212E  ARG*     4.6     3.4    -      -       -      +
----------------------------------------------------------
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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