Contacts of the strand formed by residues 179 - 187 (chain A) in PDB entry 2BS3


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 179 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  LEU*     3.9    16.6    -      -       +      +
     35A  SER      3.0    21.1    +      -       -      +
     36A  LEU*     3.6     2.3    +      -       -      +
    176A  GLN*     3.6    33.6    +      -       -      +
    177A  ASP      3.0    13.6    +      -       -      -
    178A  ARG*     1.3    77.9    -      -       -      +
    180A  GLU*     1.3    60.1    +      -       -      +
    196A  VAL*     3.1    27.4    -      -       +      -
    197A  ARG      3.7     1.8    -      -       -      -
    198A  ASP*     3.0    39.7    +      -       +      +
    199A  LEU*     4.3     0.2    -      -       -      +
    205A  ILE*     4.8     6.2    -      -       +      +
    207A  TYR*     4.0    16.0    +      -       -      +
   1656A  FAD      3.6     7.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 180 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  LEU*     3.5    20.2    -      -       +      +
    178A  ARG      4.3     0.2    -      -       -      -
    179A  LYS*     1.3    73.3    -      -       -      +
    181A  ALA*     1.3    72.4    +      -       -      +
    182A  ILE*     3.3     9.9    +      -       +      +
    196A  VAL*     3.4     4.3    -      -       -      +
    197A  ARG*     2.8    38.3    +      -       +      +
    199A  LEU*     3.4    11.2    -      -       +      +
    235A  THR*     4.2    12.6    +      -       -      +
    521A  TYR*     2.7    33.6    +      -       -      +
    522A  ARG*     2.9    48.1    +      -       -      +
    525A  MET*     5.7     1.0    -      -       -      +
   1656A  FAD      3.7     6.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 181 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  ILE*     3.8    41.3    -      -       +      -
     34A  LEU*     5.0     1.9    -      -       +      +
    179A  LYS      4.3     0.2    +      -       -      -
    180A  GLU*     1.3    73.9    -      -       -      +
    182A  ILE*     1.3    59.7    +      -       -      +
    183A  ALA      3.6     0.2    -      -       -      -
    194A  ALA*     4.3     9.4    -      -       +      -
    195A  VAL      3.6     6.7    -      -       -      -
    196A  VAL*     4.2     8.4    -      -       +      +
    235A  THR*     5.2     1.2    -      -       -      -
    239A  ILE*     3.9    19.9    -      -       +      +
    525A  MET*     5.5     0.5    -      -       -      +
   1656A  FAD      3.1    26.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 182 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180A  GLU*     3.7    16.4    -      -       +      +
    181A  ALA*     1.3    77.5    -      -       -      +
    183A  ALA*     1.3    64.4    +      -       -      +
    195A  VAL*     3.0    21.5    +      -       +      +
    197A  ARG*     4.1    19.7    -      -       +      +
    204A  ILE*     4.2     9.9    -      -       +      -
    239A  ILE*     3.5    15.0    -      -       -      +
    242A  GLU*     4.7     5.5    -      -       -      +
    447A  GLN*     3.5    40.1    +      -       +      +
    451A  MET*     4.3    11.7    -      -       +      -
    521A  TYR*     3.7    33.9    -      -       +      -
    525A  MET*     3.9    16.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 183 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181A  ALA      3.6     1.2    -      -       -      -
    182A  ILE*     1.3    84.4    -      -       -      +
    184A  LEU*     1.3    67.1    +      -       -      +
    194A  ALA*     3.2     7.8    -      -       -      +
    195A  VAL*     2.8    39.9    +      -       +      -
    239A  ILE*     3.8    10.4    -      -       -      +
    242A  GLU*     6.0     0.4    -      -       -      +
    443A  PHE*     5.1     6.1    -      -       +      -
    447A  GLN*     4.0    24.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 184 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11A  ILE*     4.2     9.6    -      -       +      -
    183A  ALA*     1.3    76.0    -      -       -      +
    185A  ILE*     1.3    63.4    +      -       -      +
    186A  HIS*     3.6     7.9    -      -       +      -
    191A  CYS*     4.5     7.2    -      -       -      -
    193A  GLY      3.5    13.5    -      -       -      +
    194A  ALA*     4.1    10.8    -      -       +      -
    212A  THR*     4.5     8.1    -      -       +      -
    214A  ILE*     4.0    10.5    -      -       +      -
    239A  ILE*     4.0    28.5    +      -       +      +
    240A  ALA*     3.8    18.6    -      -       -      -
    243A  THR*     3.7    29.4    -      -       +      +
    385A  LEU*     4.5     3.1    -      -       +      -
    388A  LEU*     4.0    22.7    -      -       +      -
    443A  PHE*     3.3    20.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 185 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184A  LEU*     1.3    70.3    -      -       -      +
    186A  HIS*     1.3    63.5    +      -       -      +
    191A  CYS*     3.5     3.6    -      -       -      -
    192A  TYR*     2.8    37.2    +      -       +      -
    193A  GLY      2.8    18.2    +      -       -      +
    194A  ALA      3.8    27.8    -      -       -      +
    195A  VAL*     3.8    21.8    -      -       +      -
    206A  ALA*     4.0    21.3    -      -       +      -
    207A  TYR      4.4     4.5    -      -       -      +
    208A  VAL*     4.4     3.1    -      -       +      -
    439A  THR*     4.3     8.7    -      -       +      -
    440A  LEU*     4.1    28.3    -      -       +      +
    443A  PHE*     4.1    24.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 186 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184A  LEU      3.6    16.4    -      -       -      -
    185A  ILE*     1.3    77.4    -      -       -      +
    187A  GLN*     1.3    65.2    +      -       -      +
    189A  GLY      5.4     0.4    +      -       -      -
    190A  LYS      3.0    17.3    -      -       -      +
    192A  TYR*     4.5     4.3    -      -       -      +
    242A  GLU      5.1     0.4    +      -       -      -
    243A  THR*     3.5    47.2    +      -       +      -
    245A  ILE*     4.0    19.7    -      -       +      +
    385A  LEU*     4.0    18.6    -      -       +      -
    439A  THR*     4.3     1.0    -      -       -      +
    442A  LYS*     5.4     1.9    +      -       -      -
    443A  PHE*     3.5    31.9    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 187 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    186A  HIS*     1.3    79.5    -      -       -      +
    188A  ASP*     1.3    95.6    +      -       -      +
    189A  GLY      3.1     1.8    -      -       -      -
    190A  LYS*     2.9    22.8    +      -       -      +
    192A  TYR*     3.6    24.3    +      -       +      -
    434A  ASP      5.1     0.9    -      -       -      +
    436A  GLU*     2.7    33.6    +      -       -      +
    438A  LYS*     6.4     0.2    -      -       -      -
    439A  THR*     2.6    34.2    +      -       +      +
    442A  LYS*     6.2     2.5    -      -       -      +
----------------------------------------------------------
 Back to top of page


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