Contacts of the strand formed by residues 188 - 196 (chain B) in PDB entry 4Y2H


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 SER 188 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    186B  PRO*     3.7     2.2    -      -       -      +
    187B  ALA*     1.3    81.2    -      -       -      +
    189B  ALA*     1.3    62.6    +      -       -      +
    190B  GLU*     5.2     2.4    +      -       -      -
    255B  GLN*     3.6    14.5    +      -       -      -
    256B  LEU      3.2    13.7    -      -       -      -
    257B  GLU*     3.6    15.0    -      -       -      -
    258B  LEU*     4.3     7.1    -      -       -      +
    294B  VAL*     3.2     9.0    -      -       -      +
    295B  THR*     3.1    42.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 189 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156B  TRP*     4.4    11.0    -      -       +      -
    161B  LEU*     4.0    27.1    -      -       +      -
    188B  SER*     1.3    77.3    -      -       -      +
    190B  GLU*     1.3    63.4    +      -       -      +
    254B  ALA      4.3     0.2    -      -       -      +
    255B  GLN*     3.2     5.4    +      -       -      -
    256B  LEU*     2.7    46.0    +      -       +      +
    258B  LEU*     5.0     0.4    -      -       +      -
    293B  GLN      3.2    11.7    -      -       -      +
    294B  VAL*     4.0    12.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 190 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    188B  SER*     5.2     2.6    +      -       -      -
    189B  ALA*     1.3    80.1    -      -       -      +
    191B  LEU*     1.3    63.7    +      -       -      +
    192B  PHE*     3.7    20.7    -      -       +      -
    252B  ARG*     2.6    40.8    +      -       -      -
    254B  ALA      3.4     3.6    -      -       -      -
    255B  GLN*     3.9    16.6    +      -       +      +
    292B  PHE*     3.0    10.2    -      -       -      +
    293B  GLN*     2.7    63.2    +      -       +      +
    295B  THR*     4.3    10.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 191 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160B  GLY      3.9    11.0    -      -       -      +
    161B  LEU*     3.9    38.6    -      -       +      -
    162B  LEU*     4.9     0.7    -      -       +      -
    190B  GLU*     1.3    76.3    -      -       -      +
    192B  PHE*     1.3    60.5    -      -       -      +
    252B  ARG*     3.3     8.8    -      -       -      +
    253B  PHE*     2.9    50.0    +      -       +      -
    254B  ALA*     2.9    16.5    +      -       +      +
    256B  LEU*     5.2     2.2    -      -       +      -
    271B  VAL*     3.7    30.3    -      -       +      -
    290B  ILE*     5.0     4.5    -      -       +      -
    291B  TRP      3.5    14.4    -      -       -      +
    292B  PHE*     4.1     3.1    -      -       +      -
    343B  LEU*     3.8    19.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 192 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    190B  GLU*     3.7    40.4    -      -       +      -
    191B  LEU*     1.3    73.4    -      -       -      +
    193B  ILE*     1.3    60.3    +      -       -      +
    250B  PRO*     4.9    10.3    -      -       +      -
    251B  GLN      3.3     7.9    -      -       -      +
    252B  ARG*     3.6    33.9    -      -       +      -
    253B  PHE*     3.4     8.7    -      -       -      -
    289B  ALA      4.5     0.2    -      -       -      -
    290B  ILE*     3.2    24.4    -      -       -      -
    291B  TRP*     2.9    52.7    +      +       +      +
    292B  PHE*     4.5     0.4    -      -       -      -
    293B  GLN*     3.8    30.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 193 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192B  PHE*     1.3    75.8    -      -       -      +
    194B  ALA*     1.3    64.1    +      -       -      +
    250B  PRO*     3.5     1.1    -      -       -      +
    251B  GLN*     2.8    44.5    +      -       +      +
    253B  PHE*     3.8    16.8    -      -       +      -
    275B  PHE*     3.8    48.2    -      -       +      -
    288B  PHE*     3.7    36.6    -      -       +      -
    289B  ALA      3.3    12.6    -      -       -      +
    290B  ILE*     3.9     3.6    -      -       +      -
    291B  TRP*     4.8     1.6    -      -       -      -
    323B  LEU*     5.0     0.4    -      -       +      -
    341B  ILE*     4.2    20.9    -      -       +      -
    357B  LEU*     4.4     4.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 194 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    193B  ILE*     1.3    77.7    -      -       -      +
    195B  PRO*     1.3    75.0    -      -       +      +
    196B  ILE*     3.8     2.5    -      -       +      +
    246B  VAL*     3.8    28.5    -      -       +      -
    248B  ALA      4.1     1.1    -      -       -      +
    249B  ARG      5.2     0.4    -      -       -      -
    250B  PRO*     3.9    13.9    -      -       +      -
    288B  PHE*     3.3     8.7    -      -       -      -
    289B  ALA      3.0    28.5    +      -       -      -
    291B  TRP*     3.9    13.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 195 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194B  ALA*     1.3    87.6    -      -       +      +
    196B  ILE*     1.3    62.2    +      -       -      +
    246B  VAL*     3.8     1.2    -      -       -      -
    247B  LEU*     2.9    33.8    +      -       +      -
    248B  ALA*     3.8    24.9    -      -       +      +
    275B  PHE*     6.1     0.7    -      -       +      -
    277B  CYS*     3.7    24.9    -      -       -      -
    279B  CYS*     4.5     8.1    -      -       -      -
    285B  MET*     3.8    28.7    -      -       +      -
    287B  GLY      3.4     8.1    -      -       -      +
    288B  PHE*     3.9    11.9    -      -       +      -
    337B  VAL*     4.5     4.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 196 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194B  ALA*     3.8     4.7    -      -       +      +
    195B  PRO*     1.3    79.5    -      -       -      +
    197B  SER*     1.3    63.0    +      -       -      +
    198B  ASP*     4.0    20.6    -      -       +      +
    241B  LEU*     3.7    23.8    -      -       +      -
    245B  ASP      3.1    12.1    -      -       -      +
    246B  VAL*     4.2    15.7    -      -       +      -
    247B  LEU*     3.4    11.4    -      -       -      +
    285B  MET*     3.6     0.3    -      -       -      -
    286B  HIS*     3.0    27.5    +      -       +      -
    287B  GLY      2.9    25.0    +      -       -      +
    288B  PHE      3.7     3.1    -      -       -      +
    289B  ALA*     3.6    38.6    -      -       +      +
    322B  LEU*     4.5     9.9    -      -       +      -
    324B  TYR*     4.9     3.4    -      -       +      -
----------------------------------------------------------
 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