Contacts of the strand formed by residues 101 - 106 (chain P) in PDB entry 4R2G


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 ALA 101 (chain P).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5P  TYR*     3.9     9.9    -      -       +      -
      6P  VAL*     3.1    32.4    -      -       -      +
      7P  SER*     3.3     5.0    +      -       -      -
     85P  ASP*     3.7    15.4    -      -       +      -
     86P  TYR      3.3     6.3    -      -       -      +
     87P  TYR*     3.0    44.2    -      -       +      +
     99P  GLY      3.6     0.6    +      -       -      -
    100P  GLY*     1.3    72.1    -      -       -      -
    102P  THR*     1.3    62.0    +      -       -      +
    103P  ARG*     3.6     0.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 102 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7P  SER*     3.3    20.5    +      -       -      +
      8P  PRO      4.9     0.2    -      -       -      -
     11P  LEU*     3.6    29.4    -      -       +      +
     21P  ILE*     3.4    42.5    -      -       +      +
     22P  SER      5.2     1.4    +      -       -      -
     84P  ALA      3.4     2.1    -      -       -      +
     85P  ASP*     3.2     1.9    -      -       -      -
     86P  TYR*     2.7    40.4    +      -       -      +
    100P  GLY      4.1     0.9    +      -       -      -
    101P  ALA*     1.3    71.5    -      -       -      +
    103P  ARG*     1.3    64.1    +      -       -      +
    104P  LEU      3.7     1.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 103 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5P  TYR*     3.7    17.8    +      -       -      -
      6P  VAL*     3.5    31.5    -      -       +      +
      7P  SER      2.9    14.2    +      -       -      +
      8P  PRO*     3.8     8.5    -      -       +      +
     11P  LEU      3.1    23.7    +      -       -      +
     40P  PRO*     5.1     6.7    -      -       -      +
     84P  ALA      3.4     5.8    -      -       -      +
     85P  ASP*     2.6    39.6    +      -       -      +
    101P  ALA      3.6     1.0    +      -       -      +
    102P  THR*     1.3    70.9    -      -       -      +
    104P  LEU*     1.3    65.4    +      -       -      +
    105P  THR*     3.7     7.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 104 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11P  LEU*     3.4    28.0    -      -       +      +
     13P  VAL*     3.5    27.8    -      -       +      -
     19P  ALA*     4.5     7.4    -      -       +      -
     21P  ILE*     4.8     3.4    -      -       +      -
     75P  ILE*     3.9    27.1    -      -       +      -
     78P  VAL*     5.0     4.9    -      -       +      -
     82P  ASP*     3.6    26.7    -      -       +      +
     83P  GLU*     3.2    22.2    -      -       -      +
     84P  ALA      2.9    11.7    +      -       -      +
     86P  TYR*     3.8    19.3    -      -       +      +
    102P  THR*     3.7     1.8    +      -       +      -
    103P  ARG*     1.3    74.8    -      -       -      +
    105P  THR*     1.3    67.1    +      -       -      +
    106P  VAL*     4.8     5.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 105 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8P  PRO*     6.1     0.5    -      -       -      +
     11P  LEU      2.9     7.8    +      -       -      -
     12P  SER*     3.4    16.5    +      -       -      +
     13P  VAL      3.1    24.6    +      -       -      -
     83P  GLU*     3.5    10.3    -      -       -      +
    103P  ARG*     4.4     7.3    +      -       -      +
    104P  LEU*     1.3    74.5    +      -       -      +
    106P  VAL*     1.3    91.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 106 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13P  VAL*     3.8     2.9    -      -       +      +
     15P  LEU*     3.8    32.1    -      -       +      +
     78P  VAL*     3.8    15.5    -      -       +      -
     79P  GLU      3.4    23.3    -      -       -      +
     80P  VAL*     4.5     9.2    -      -       +      -
     82P  ASP*     4.8     0.7    -      -       +      -
     83P  GLU*     2.7    38.5    +      -       +      +
    104P  LEU*     4.8     8.5    -      -       +      -
    105P  THR*     1.3    71.6    -      -       -      +
    106P  LEU*     1.3    76.2    +      -       -      +
    107P  SER*     3.9     0.7    -      -       -      -
    108P  GLN*     3.6    20.3    -      -       +      +
    141P  TYR*     4.3     3.1    +      -       -      -
----------------------------------------------------------
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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