Contacts of the strand formed by residues 181 - 185 (chain I) in PDB entry 6RAR


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 181 (chain I).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    176I  ILE      3.5     1.6    -      -       -      +
    177I  ILE*     3.5     1.0    -      -       -      -
    178I  ARG*     2.9    35.9    +      -       -      +
    179I  GLN*     4.2     5.8    -      -       +      +
    180I  ASN*     1.3    95.3    -      -       -      +
    182I  VAL*     1.3    65.1    +      -       -      +
    183I  GLU*     4.2     2.9    +      -       +      +
    203I  GLU*     3.4    33.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 182 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175I  THR*     3.4    30.7    -      -       +      -
    176I  ILE      3.3     6.3    -      -       -      +
    177I  ILE*     4.2     5.4    -      -       +      -
    181I  LYS*     1.3    78.4    -      -       -      +
    183I  GLU*     1.3    73.6    +      -       -      +
    199I  ILE*     4.1    32.1    -      -       +      +
    202I  ILE*     3.4    37.7    -      -       +      -
    203I  GLU*     3.8    18.7    +      -       +      +
    206I  LEU*     3.5    17.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 183 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174I  LEU      4.0     0.2    -      -       -      +
    175I  THR*     3.4     2.9    -      -       -      +
    176I  ILE*     2.7    41.7    +      -       +      +
    181I  LYS*     5.4     2.2    -      -       +      +
    182I  VAL*     1.3    80.5    -      -       -      +
    184I  MET*     1.3    64.0    +      -       -      +
    185I  PHE*     3.8    26.7    -      -       +      -
    191I  GLN*     3.2    29.5    +      -       -      +
    199I  ILE*     5.0     3.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET 184 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    173I  VAL*     3.8    20.0    -      -       +      -
    174I  LEU      3.4     4.7    -      -       -      +
    175I  THR*     3.9    23.1    -      -       +      +
    183I  GLU*     1.3    78.8    -      -       -      +
    185I  PHE*     1.3    68.9    +      -       -      +
    191I  GLN*     3.5     5.6    -      -       -      +
    192I  PHE*     2.8    38.2    +      -       +      +
    195I  PHE*     3.4    37.9    -      -       +      -
    198I  ILE*     3.7    35.9    -      -       +      -
    199I  ILE*     3.7    28.8    -      -       +      +
    202I  ILE*     5.3     0.4    -      -       +      -
    221I  VAL*     6.5     0.4    -      -       +      -
    246I  LEU*     4.6     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 185 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143I  PHE*     4.3    14.8    -      +       +      -
    173I  VAL*     3.5     6.8    -      -       -      -
    174I  LEU      2.9    32.5    +      -       -      +
    176I  ILE*     3.5    38.1    -      -       +      -
    183I  GLU*     3.8    39.0    -      -       +      -
    184I  MET*     1.3    78.5    -      -       -      +
    186I  SER*     1.3    69.0    +      -       -      +
    189I  GLY*     3.4    25.6    -      -       -      -
    190I  LYS      3.3     4.7    -      -       -      +
    191I  GLN*     3.7    28.5    -      -       +      -
    192I  PHE*     3.7     6.5    -      -       -      -
----------------------------------------------------------
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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