Contacts of the strand formed by residues 138 - 145 (chain B) in PDB entry 4WGK


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 TYR 138 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108B  ARG*     3.7    26.7    -      -       +      -
    109B  ALA      3.3    14.1    -      -       -      +
    110B  ASP*     4.1    12.8    -      -       +      -
    111B  CYS*     3.5     5.2    -      -       -      -
    135B  THR*     5.1     2.7    -      -       -      -
    136B  ARG*     3.5    29.8    -      -       +      +
    137B  LEU*     1.3    77.4    -      -       -      +
    139B  SER*     1.3    61.8    +      -       -      +
    140B  ARG*     3.6    27.9    +      -       -      +
    157B  SER      3.9     1.7    -      -       -      +
    158B  ILE*     3.7     1.0    -      -       -      -
    159B  ASP*     2.7    46.9    +      -       -      +
    316B  SER*     6.1     0.2    -      -       -      -
    324B  TYR*     6.3     3.1    -      +       -      -
    327B  GLU*     5.4     0.9    -      -       -      -
    336B  PRO*     4.1     0.3    +      -       -      +
    337B  GLY*     3.2    37.2    +      -       -      -
    713B  ALA*     3.3    26.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 139 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108B  ARG*     3.3     2.3    -      -       -      -
    109B  ALA      2.8    32.9    +      -       -      -
    111B  CYS*     3.6     8.3    -      -       -      -
    138B  TYR*     1.3    73.0    -      -       -      +
    140B  ARG*     1.3    58.3    +      -       -      +
    156B  VAL*     3.3    19.8    -      -       -      +
    157B  SER      3.8     3.1    -      -       -      -
    158B  ILE*     4.3     4.0    -      -       -      +
    226B  GLY      3.7     8.3    -      -       -      -
    227B  ILE*     3.3    29.9    -      -       -      +
    230B  SER*     3.0    23.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 140 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107B  GLY      3.3     3.4    -      -       -      -
    108B  ARG*     3.8    10.6    -      -       +      +
    138B  TYR*     3.6    27.8    +      -       +      +
    139B  SER*     1.3    79.7    +      -       -      +
    141B  ALA*     1.3    58.3    +      -       -      +
    142B  PHE*     3.7     8.0    -      -       +      -
    156B  VAL*     3.3     3.2    -      -       -      -
    157B  SER      2.9    43.9    +      -       -      +
    159B  ASP*     3.4    29.5    +      -       -      -
    320B  GLY*     5.5     1.8    +      -       -      -
    323B  SER*     4.1    20.5    +      -       -      -
    324B  TYR*     5.0     2.2    -      -       -      +
    327B  GLU*     2.8    39.6    +      -       -      -
    342B  VAL*     3.6    20.9    -      -       +      -
    343B  ALA      3.3    19.8    +      -       -      -
    344B  ALA*     3.6    21.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 141 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106B  VAL*     3.4     4.3    -      -       -      -
    107B  GLY      2.9    31.2    +      -       -      +
    139B  SER      4.1     0.4    -      -       -      -
    140B  ARG*     1.3    72.1    -      -       -      +
    142B  PHE*     1.3    68.8    +      -       -      +
    143B  ILE*     4.3     0.7    -      -       +      -
    154B  VAL*     4.7     2.9    -      -       +      -
    155B  PHE      3.5     4.3    -      -       -      -
    156B  VAL*     3.9     9.6    -      -       +      -
    230B  SER*     3.8    34.1    -      -       -      +
    231B  ILE*     3.8    18.8    -      -       +      +
    234B  ALA*     4.5     4.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 142 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105B  GLY      3.5     3.4    -      -       -      +
    106B  VAL*     3.6    20.6    -      -       +      -
    140B  ARG      3.7    14.6    -      -       -      -
    141B  ALA*     1.3    73.3    -      -       -      +
    143B  ILE*     1.3    63.5    +      -       -      +
    144B  MET*     3.6    16.4    -      -       +      +
    153B  THR      3.5     1.7    -      -       -      +
    154B  VAL*     3.4     4.8    -      -       -      +
    155B  PHE*     2.8    46.9    +      +       +      +
    286B  MET*     3.5    30.7    -      -       +      -
    296B  LEU      3.5    20.0    -      -       -      -
    297B  ILE*     3.8    24.9    -      -       +      -
    342B  VAL*     3.8    27.1    -      -       +      -
    344B  ALA*     3.6    25.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 143 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103B  HIS      3.5     0.9    -      -       -      +
    104B  ILE*     3.3     5.4    -      -       -      -
    105B  GLY*     2.8    42.5    +      -       -      +
    141B  ALA*     5.2     0.9    -      -       +      -
    142B  PHE*     1.3    77.1    -      -       -      +
    144B  MET*     1.3    71.6    +      -       -      +
    152B  ARG*     4.5     3.6    -      -       +      -
    153B  THR      3.4     8.1    -      -       -      +
    154B  VAL*     4.1    12.6    -      -       +      -
    183B  TYR*     3.6    42.2    -      -       +      +
    231B  ILE*     3.8    19.5    -      -       +      +
    234B  ALA*     3.8     9.9    -      -       +      -
    235B  HIS*     3.7    24.0    -      -       -      +
    238B  MET*     3.9    18.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 144 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102B  TYR*     5.0     3.8    -      -       +      -
    103B  HIS      3.4     3.6    -      -       -      -
    104B  ILE*     4.5     9.6    -      -       +      -
    142B  PHE*     3.6    26.7    -      -       +      +
    143B  ILE*     1.3    86.3    -      -       -      +
    145B  ALA*     1.3    60.9    +      -       -      +
    152B  ARG*     3.2     5.4    -      -       -      +
    153B  THR*     2.9    49.9    +      -       -      +
    155B  PHE*     5.0     8.1    -      -       +      +
    243B  ILE*     3.7    27.6    -      -       +      -
    284B  LEU*     6.0     0.7    -      -       -      -
    286B  MET*     4.5    15.9    -      -       -      +
    297B  ILE*     5.8     2.7    -      -       +      -
    423B  LEU*     3.6    13.9    -      -       +      +
    529B  LEU*     3.6    27.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 145 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102B  TYR*     3.4    10.2    -      -       -      +
    103B  HIS*     2.9    32.0    +      -       +      +
    144B  MET*     1.3    76.2    -      -       -      +
    146B  GLU*     1.3    66.6    +      -       -      +
    149B  GLY*     4.2     6.3    -      -       -      +
    150B  SER      4.0     3.6    -      -       -      +
    152B  ARG*     3.8    27.1    -      -       +      +
    238B  MET*     3.8    19.3    -      -       +      -
    423B  LEU*     3.6     9.6    -      -       -      -
----------------------------------------------------------
 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