Contacts of the helix formed by residues 185 - 190 (chain C) in PDB entry 5ZR1


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 185 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143C  LEU*     3.7    14.5    -      -       +      +
    147C  MET*     3.9    16.4    -      -       +      -
    184C  ASP*     1.3    75.5    -      -       -      +
    186C  SER*     1.3    58.8    +      -       -      +
    187C  LEU      3.2     1.1    -      -       -      -
    188C  VAL*     3.4    36.8    +      -       +      +
    189C  GLU      3.9     2.6    +      -       -      -
    201C  MET*     5.7     0.7    -      -       +      -
    222C  LEU*     3.3    33.9    -      -       +      +
    223C  LEU*     4.4    14.4    -      -       +      -
    225C  SER*     4.5     2.0    -      -       -      -
    226C  ALA*     4.4    18.4    -      -       +      -
    229C  TYR*     4.2     3.9    -      -       +      -
     66E  GLU*     3.5    51.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with SER 186 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181C  VAL*     6.0     0.3    -      -       -      +
    182C  SER*     4.6     1.6    +      -       -      -
    184C  ASP*     2.7    29.5    +      -       -      -
    185C  LEU*     1.3    75.8    -      -       -      +
    187C  LEU*     1.3    61.8    +      -       -      +
    188C  VAL      3.2     1.1    -      -       -      -
    189C  GLU*     3.3    23.9    -      -       -      +
    190C  ASN*     2.9    26.7    +      -       -      +
    229C  TYR*     5.4     0.2    -      -       -      -
     66E  GLU*     4.9     4.0    +      -       -      +
     67E  LEU*     4.6     9.3    -      -       -      +
     79E  ARG*     3.7    33.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 187 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147C  MET*     3.4    35.2    -      -       +      +
    150C  LEU*     3.7    26.5    -      -       +      -
    151C  TYR*     3.8    25.8    -      -       +      -
    181C  VAL*     3.8    34.3    -      -       +      +
    182C  SER      4.6     1.8    +      -       -      +
    183C  TYR*     4.8     2.5    -      -       +      -
    184C  ASP      3.0    14.2    +      -       -      +
    186C  SER*     1.3    79.3    +      -       -      +
    188C  VAL*     1.3    62.0    +      -       -      +
    190C  ASN*     3.6     4.6    +      -       +      +
    191C  PHE*     3.4    28.1    +      -       +      +
    194C  LEU*     5.4     7.6    -      -       +      -
    195C  PHE*     5.4     2.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 188 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147C  MET*     4.0    18.4    -      -       +      -
    150C  LEU*     4.6     6.1    -      -       +      -
    185C  LEU*     3.4    33.4    +      -       +      +
    186C  SER      3.2     0.6    -      -       -      -
    187C  LEU*     1.3    78.9    -      -       -      +
    189C  GLU*     1.3    58.3    +      -       -      +
    191C  PHE*     3.5     9.3    -      -       -      +
    199C  LEU*     5.1     4.0    -      -       +      -
    201C  MET*     4.4    17.7    -      -       -      -
    226C  ALA*     4.2     9.9    -      -       +      -
    229C  TYR*     3.8    16.8    -      -       +      -
    231C  HIS*     3.1    22.2    +      -       -      -
    232C  VAL*     3.7    28.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 189 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    185C  LEU      3.9     1.8    +      -       -      -
    186C  SER*     3.3    32.5    -      -       -      +
    188C  VAL*     1.3    81.7    -      -       -      +
    190C  ASN*     1.3    65.4    +      -       -      +
    191C  PHE      3.2     4.0    +      -       -      -
    192C  LYS*     4.6     1.4    +      -       -      +
    193C  ARG*     3.9    24.9    +      -       -      +
    229C  TYR*     3.2    50.7    +      -       +      +
    231C  HIS*     3.8    13.5    -      -       +      -
     63E  GLU*     5.4     2.1    -      -       -      +
     66E  GLU*     4.9     1.9    -      -       -      +
     79E  ARG*     4.5     6.8    +      -       -      -
     80E  THR*     5.9     1.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 190 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    186C  SER*     2.9    23.0    +      -       -      +
    187C  LEU*     3.6     8.8    +      -       +      +
    188C  VAL      3.4     0.6    -      -       -      -
    189C  GLU*     1.3    82.9    -      -       -      +
    191C  PHE*     1.3    62.2    +      -       -      +
    192C  LYS      3.5     1.6    -      -       -      -
    193C  ARG*     3.0    41.9    -      -       +      +
    194C  LEU*     3.2    36.7    +      -       +      +
     79E  ARG*     4.5    17.4    +      -       -      +
----------------------------------------------------------
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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