Contacts of the helix formed by residues 182 - 194 (chain P) in PDB entry 5IJO


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 182 (chain P).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50P  PHE      5.2    10.1    -      -       -      +
     51P  ILE*     6.4     0.7    -      -       -      +
    170P  THR*     4.8    15.8    +      -       -      +
    171P  THR*     5.3     4.3    -      -       -      -
    174P  THR*     3.8     6.6    -      -       -      +
    181P  GLY*     1.3    68.7    -      -       -      -
    183P  THR*     1.3    67.4    +      -       -      +
    185P  LYS*     3.0     9.1    +      -       -      +
    186P  VAL*     2.9    23.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 183 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174P  THR*     3.8    18.5    -      -       -      -
    181P  GLY      3.3     1.0    -      -       -      -
    182P  LEU*     1.3    79.8    -      -       -      +
    184P  TYR*     1.3    65.2    +      -       -      +
    185P  LYS      3.3     0.2    +      -       -      -
    186P  VAL*     3.4    14.8    +      -       -      +
    187P  LEU*     4.5     2.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 184 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174P  THR*     5.2     1.4    -      -       -      +
    181P  GLY*     3.4    15.4    +      -       -      +
    182P  LEU      3.2     0.6    -      -       -      -
    183P  THR*     1.3    80.0    -      -       -      +
    185P  LYS*     1.3    60.3    +      -       -      +
    186P  VAL      3.6     0.3    +      -       -      -
    187P  LEU*     4.1     9.7    +      -       -      +
    188P  THR*     4.3     5.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 185 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51P  ILE*     3.8    24.9    -      -       +      +
     52P  SER*     5.6     0.7    -      -       -      -
     53P  LEU*     6.3     1.3    -      -       +      -
    181P  GLY      3.4     9.6    +      -       -      +
    182P  LEU*     3.0    11.8    +      -       -      +
    184P  TYR*     1.3    77.5    -      -       +      +
    186P  VAL*     1.3    64.7    +      -       -      +
    187P  LEU      3.2     2.5    -      -       -      -
    188P  THR*     2.9    10.8    +      -       -      +
    189P  LEU*     2.9    22.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 186 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182P  LEU      2.9    14.6    +      -       -      +
    183P  THR*     3.4    11.0    +      -       -      +
    185P  LYS*     1.3    74.4    -      -       -      +
    187P  LEU*     1.3    63.2    +      -       -      +
    189P  LEU*     3.1    16.3    +      -       -      +
    190P  VAL*     3.2    12.1    +      -       -      +
    231P  SER*     6.2     3.8    -      -       -      -
    232P  LEU*     6.1     6.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 187 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    183P  THR      4.5     2.3    +      -       -      +
    184P  TYR      4.1     8.2    +      -       -      +
    185P  LYS      3.2     0.6    -      -       -      -
    186P  VAL*     1.3    78.3    -      -       -      +
    188P  THR*     1.3    64.3    +      -       -      +
    190P  VAL*     3.2     8.5    +      -       -      +
    191P  SER*     3.1    18.5    +      -       -      -
    248P  LEU*     6.5     1.1    -      -       +      -
    252P  HIS*     5.5    11.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 188 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184P  TYR      4.3     3.7    +      -       -      -
    185P  LYS*     2.9    15.5    +      -       -      -
    187P  LEU*     1.3    79.5    -      -       -      +
    189P  LEU*     1.3    52.9    +      -       -      +
    191P  SER*     2.5    40.6    -      -       -      +
    192P  GLN*     3.9     5.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 189 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51P  ILE      5.5     0.2    -      -       -      +
     52P  SER*     4.4    27.1    -      -       -      +
     53P  LEU*     5.9     6.1    -      -       +      -
    185P  LYS*     2.9    11.7    +      -       +      +
    186P  VAL*     3.1    13.4    +      -       -      +
    188P  THR*     1.3    71.8    -      -       -      +
    190P  VAL*     1.4    55.3    +      -       -      +
    191P  SER      2.5    18.9    -      -       -      +
    192P  GLN*     4.5     3.6    -      -       -      +
    193P  ILE*     3.8    11.6    +      -       -      +
    228P  LEU*     6.0     5.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 190 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    186P  VAL      3.2     7.5    +      -       -      +
    187P  LEU*     3.2    10.3    +      -       -      +
    189P  LEU*     1.4    73.9    -      -       -      +
    191P  SER*     1.3    66.8    +      -       -      +
    193P  ILE*     3.6     5.6    +      -       -      +
    194P  ASP*     3.5    16.6    +      -       -      +
    228P  LEU*     5.7    11.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 191 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187P  LEU      3.1    12.0    +      -       -      -
    188P  THR*     2.5    23.7    +      -       -      +
    189P  LEU      2.5    21.7    -      -       -      +
    190P  VAL*     1.3    78.2    -      -       -      +
    192P  GLN*     1.3    59.0    +      -       -      +
    193P  ILE      2.7     1.4    +      -       -      -
    194P  ASP*     4.1    10.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 192 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53P  LEU*     6.3     3.4    -      -       +      -
    188P  THR      3.9     6.3    -      -       -      +
    189P  LEU*     4.5     3.4    -      -       -      +
    191P  SER*     1.3    77.5    -      -       -      +
    193P  ILE*     1.4    64.0    +      -       -      +
    194P  ASP*     2.9     6.2    -      -       -      +
    195P  VAL*     3.1    24.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 193 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    189P  LEU      3.8     9.1    +      -       -      +
    190P  VAL*     3.9    10.3    -      -       -      +
    191P  SER      2.7     9.7    +      -       -      -
    192P  GLN*     1.4    73.9    -      -       -      +
    194P  ASP*     1.3    61.9    +      -       -      +
    195P  VAL      3.4     5.5    +      -       -      +
    221P  ILE*     5.1    22.8    -      -       +      +
    224P  CYS*     5.6     6.5    -      -       +      -
    225P  ARG*     5.9     7.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 194 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190P  VAL      3.5    13.5    +      -       -      +
    191P  SER*     4.1     5.8    -      -       -      -
    192P  GLN      4.1     6.7    -      -       -      +
    193P  ILE*     1.3    78.3    -      -       -      +
    195P  VAL*     1.4    66.8    +      -       -      +
    196P  ASN*     3.1     6.8    +      -       -      +
----------------------------------------------------------
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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