Contacts of the strand formed by residues 159 - 164 (chain B) in PDB entry 3OX4


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 VAL 159 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121B  GLU*     5.1     3.1    -      -       -      +
    153B  THR*     4.4     3.2    -      -       -      +
    154B  ASP*     2.7    38.8    +      -       -      +
    157B  ARG*     3.1    49.8    -      -       +      +
    158B  HIS*     1.3    73.5    -      -       -      +
    160B  LYS*     1.3    73.3    +      -       -      +
    161B  MET*     3.5    12.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 160 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71B  ASN*     3.5    29.5    -      -       -      +
     72B  PRO*     5.8     0.6    -      -       -      +
    121B  GLU*     3.9     4.7    -      -       -      +
    151B  ILE*     4.0    23.5    +      -       +      +
    152B  ILE      3.7     3.1    -      -       -      -
    153B  THR*     3.6    23.6    +      -       +      +
    159B  VAL*     1.3    81.9    -      -       -      +
    161B  MET*     1.3    60.0    +      -       -      +
    162B  ALA      4.2     0.2    +      -       -      -
    267B  HIS*     3.4    47.8    -      -       +      +
    268B  GLN*     5.7     2.0    -      -       -      +
    270B  GLY*     5.1     0.7    -      -       -      -
    271B  GLY*     4.2    15.0    -      -       -      +
    277B  HIS*     6.3     0.2    -      -       -      -
    360B  ASP*     5.6     2.7    -      -       -      +
   1385B  NAD      3.7    15.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 161 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74B  VAL*     5.1     5.2    -      -       -      -
    117B  VAL*     4.8    10.8    -      -       +      +
    118B  LYS*     3.2    39.3    -      -       +      +
    121B  GLU*     3.0    39.9    -      -       +      +
    150B  CYS      3.5     2.1    -      -       -      +
    151B  ILE*     3.3     5.3    -      -       -      -
    152B  ILE*     2.7    43.0    +      -       +      +
    154B  ASP*     4.5    13.2    -      -       -      +
    157B  ARG*     3.1    29.4    -      -       -      +
    159B  VAL*     3.7    16.4    -      -       +      +
    160B  LYS*     1.3    77.9    -      -       -      +
    162B  ALA*     1.3    60.6    +      -       -      +
    163B  ILE*     4.0     3.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 162 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121B  GLU*     3.7     9.1    +      -       -      +
    122B  GLY*     3.1    23.0    +      -       -      +
    151B  ILE*     3.4    24.7    -      -       +      -
    160B  LYS      4.2     1.0    +      -       -      -
    161B  MET*     1.3    72.3    -      -       -      +
    163B  ILE*     1.3    62.0    -      -       -      +
    164B  VAL*     3.8    11.3    +      -       +      +
    361B  ALA*     4.8    19.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 163 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106B  ALA*     5.3     2.9    -      -       +      -
    109B  LEU*     4.3    13.0    -      -       +      -
    117B  VAL*     3.9    35.0    -      -       +      +
    120B  TYR*     3.5    35.0    -      -       +      +
    121B  GLU*     4.1     3.6    -      -       +      +
    148B  ARG      3.5     1.6    -      -       -      +
    149B  PHE*     3.4     5.2    -      -       -      +
    150B  CYS*     2.8    66.8    +      -       +      +
    151B  ILE*     5.3     0.2    -      -       -      +
    152B  ILE*     4.4     2.2    -      -       +      -
    161B  MET*     4.9     4.0    -      -       +      +
    162B  ALA*     1.3    75.6    -      -       -      +
    164B  VAL*     1.3    58.9    +      -       -      +
    165B  ASP*     4.0    19.7    -      -       +      -
    168B  VAL*     4.3     8.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 164 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122B  GLY*     2.9    17.0    +      -       -      +
    123B  ILE*     3.3    23.2    -      -       +      +
    124B  ASP*     2.8    25.7    +      -       -      +
    148B  ARG*     3.4    36.6    -      -       -      +
    149B  PHE*     4.1    20.9    -      -       +      -
    162B  ALA*     4.5    14.8    -      -       +      +
    163B  ILE*     1.3    73.7    -      -       -      +
    165B  ASP*     1.3    60.0    +      -       -      +
    361B  ALA*     5.6     7.6    -      -       +      -
----------------------------------------------------------
 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