Contacts of the strand formed by residues 163 - 166 (chain B) in PDB entry 6E7P


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 163 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    132B  ALA      5.2     0.9    -      -       -      +
    133B  VAL*     4.0    29.8    -      -       +      -
    136B  TYR*     3.5    39.2    +      -       +      -
    157B  TRP*     4.4     0.4    -      -       -      -
    161B  SER*     4.7     0.2    -      -       -      -
    162B  GLY*     1.3    77.5    +      -       -      +
    164B  ALA*     1.3    68.1    +      -       -      +
    165B  LEU*     5.1     2.0    -      -       +      +
    194B  GLN*     4.1     2.9    -      -       -      +
    195B  VAL*     3.0    51.5    +      -       +      +
    233B  ILE*     3.7    17.9    -      -       +      -
    234B  HIS      3.4    15.0    -      -       -      +
    235B  PHE*     3.6    26.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 164 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156B  PRO      3.7    22.2    -      -       -      +
    157B  TRP*     4.3     6.7    -      -       +      +
    163B  LEU*     1.3    80.6    -      -       -      +
    165B  LEU*     1.3    61.2    +      -       -      +
    166B  CYS*     3.9    17.2    +      -       -      -
    193B  ILE      3.3    11.4    -      -       -      +
    194B  GLN*     4.3    13.2    -      -       -      +
    232B  THR      3.7     1.2    -      -       -      +
    233B  ILE*     3.6     3.2    -      -       -      -
    234B  HIS*     3.4    31.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 165 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129B  ILE*     4.2    15.7    -      -       +      -
    130B  PHE*     6.3     0.9    -      -       +      -
    133B  VAL*     3.9    28.0    -      -       +      -
    163B  LEU*     4.3     4.8    -      -       +      +
    164B  ALA*     1.3    72.3    -      -       -      +
    166B  CYS*     1.3    59.5    +      -       -      +
    167B  GLN*     5.7     4.7    -      -       +      +
    191B  ASP      3.9     0.3    -      -       -      +
    192B  CYS*     3.6     0.3    -      -       -      -
    193B  ILE*     2.9    47.4    +      -       +      +
    195B  VAL*     5.7     5.1    -      -       +      +
    218B  TYR*     4.9    18.4    -      -       +      +
    221B  LEU*     3.8    28.5    -      -       +      -
    231B  VAL*     5.1    10.8    -      -       +      -
    232B  THR      3.4     5.2    -      -       -      +
    233B  ILE*     3.8    18.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with CYS 166 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156B  PRO*     5.5     3.4    -      -       -      -
    164B  ALA*     3.9    17.7    -      -       -      -
    165B  LEU*     1.3    75.8    -      -       -      +
    167B  GLN*     1.3    63.6    +      -       -      +
    168B  ARG*     3.5    22.3    +      -       -      +
    190B  THR*     4.1     2.2    -      -       +      -
    191B  ASP      3.4     4.7    -      -       -      +
    192B  CYS*     2.0    49.8    -      -       -      -
    230B  ASN      3.9     0.3    -      -       -      +
    231B  VAL*     3.6     4.9    -      -       -      +
    232B  THR*     3.1    34.6    +      -       -      +
    234B  HIS*     5.3     6.1    -      -       +      -
----------------------------------------------------------
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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