Contacts of the strand formed by residues 328 - 335 (chain A) in PDB entry 2OKC


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 PHE 328 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    278A  TYR*     3.9    11.4    -      +       -      -
    293A  MSE      3.5    56.8    -      -       +      -
    296A  LEU*     4.4     1.8    -      -       +      -
    323A  ARG*     3.9     5.8    -      -       +      -
    324A  LEU*     3.0    31.4    +      -       +      +
    325A  LEU      3.3     1.2    -      -       -      +
    326A  GLN      3.5     0.2    -      -       -      -
    327A  ASP*     1.3    92.8    -      -       +      +
    329A  ASN*     1.3    55.6    +      -       -      +
    353A  PHE*     3.7    18.4    -      +       +      -
    354A  SER      3.1    19.7    -      -       -      +
    355A  LYS*     3.5    39.0    -      -       +      -
    357A  GLN      2.8    12.8    -      -       -      +
    359A  THR*     2.8    26.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 329 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    328A  PHE*     1.3    70.5    -      -       -      +
    330A  LEU*     1.3    58.4    +      -       -      +
    331A  HIS*     3.0    39.3    +      -       -      +
    353A  PHE*     3.2     5.1    -      -       -      -
    354A  SER*     3.0    40.2    +      -       -      +
    357A  GLN*     3.1    19.3    +      -       +      +
    358A  PRO      3.9     8.5    -      -       -      +
    359A  THR*     3.4    13.9    -      -       -      +
    360A  LYS      4.5     1.6    +      -       -      -
    361A  GLU      4.2     2.9    +      -       -      +
    501A  GOL      5.2     4.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 330 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    324A  LEU*     3.9    24.7    -      -       +      -
    325A  LEU*     4.3     7.4    -      -       +      -
    328A  PHE      3.7     1.2    -      -       -      -
    329A  ASN*     1.3    69.8    -      -       -      +
    331A  HIS*     1.3    61.6    +      -       -      +
    332A  THR      3.4     1.8    -      -       -      +
    333A  ILE*     4.1    19.5    -      -       +      -
    351A  LEU*     4.0    32.5    -      -       +      -
    352A  PHE      3.7    13.5    -      -       -      +
    353A  PHE*     3.7    14.8    -      -       +      +
    359A  THR*     3.0    16.0    +      -       +      +
    361A  GLU      3.7     0.5    -      -       -      +
    362A  ILE*     3.3    34.0    -      -       +      +
    425A  LEU*     3.8    29.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 331 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    301A  ARG*     5.8     2.8    -      -       -      +
    329A  ASN*     3.0    43.7    +      -       -      +
    330A  LEU*     1.3    74.1    -      -       -      +
    332A  THR*     1.3    84.2    +      -       -      +
    352A  PHE*     3.4    20.7    +      -       +      -
    353A  PHE*     4.2     5.8    +      -       -      -
    354A  SER*     4.5     8.0    +      -       -      -
    361A  GLU      3.8     9.6    -      -       -      +
    362A  ILE*     4.3     0.2    -      -       -      -
    363A  TRP*     2.9    27.2    +      -       +      +
    392A  TYR*     3.2    29.4    +      +       -      -
    395A  ARG*     3.2    11.0    +      -       -      +
    501A  GOL      3.7    35.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 332 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    330A  LEU*     3.4     2.5    -      -       -      +
    331A  HIS*     1.3   101.2    +      -       -      +
    333A  ILE*     1.3    71.7    +      -       -      +
    351A  LEU*     3.7     0.2    -      -       -      -
    352A  PHE*     3.1    49.1    +      -       +      +
    363A  TRP      3.2     8.3    -      -       -      +
    388A  PHE*     4.1    11.9    -      -       +      -
    392A  TYR*     3.9    15.7    -      -       +      -
    395A  ARG*     2.8    21.0    +      -       -      -
    409A  TRP*     4.0    15.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 333 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    311A  LEU*     4.4     7.6    -      -       +      -
    330A  LEU*     4.1    25.8    -      -       +      -
    332A  THR*     1.3    83.3    -      -       -      +
    334A  LEU*     1.3    60.5    +      -       -      +
    335A  ARG*     4.0    20.9    +      -       -      +
    349A  ASN*     4.4    11.4    -      -       +      +
    350A  VAL      3.4     7.6    -      -       -      +
    351A  LEU*     4.1    19.7    -      -       +      -
    362A  ILE*     4.2     6.0    -      -       +      +
    363A  TRP      2.8     9.5    +      -       -      +
    364A  PHE*     3.2    34.3    -      -       +      +
    365A  TYR      2.8    31.5    +      -       -      +
    425A  LEU*     4.2    17.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 334 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158A  LEU*     4.7     4.9    -      -       +      -
    161A  ALA*     6.4     0.7    -      -       +      -
    162A  MSE      6.2     0.7    -      -       +      -
    332A  THR*     4.3     1.0    -      -       -      +
    333A  ILE*     1.3    72.6    -      -       -      +
    335A  ARG*     1.3    67.1    +      -       -      +
    336A  LEU*     3.6    26.0    +      -       +      -
    349A  ASN*     3.1     6.6    -      -       -      +
    350A  VAL*     2.8    55.7    +      -       +      +
    352A  PHE*     4.4     1.1    -      -       +      -
    365A  TYR*     3.4    37.7    -      -       +      +
    367A  TYR*     4.0     8.3    -      -       +      -
    385A  LEU*     4.5    10.3    -      -       +      -
    388A  PHE*     4.1    39.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 335 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308A  ASP*     3.1    31.3    +      -       -      -
    311A  LEU*     3.9     8.6    -      -       -      +
    333A  ILE*     4.2     7.9    -      -       -      +
    334A  LEU*     1.3    70.7    -      -       -      +
    336A  LEU*     1.3    62.1    +      -       -      +
    349A  ASN*     2.7    20.6    +      -       -      +
    364A  PHE*     3.9    28.0    -      -       +      -
    365A  TYR      2.7    21.0    +      -       -      +
    366A  ASP*     4.1    22.9    -      -       +      +
    367A  TYR*     3.0    30.5    +      -       -      +
    368A  ARG*     3.4    19.0    -      -       +      +
    426A  ASP*     2.9    29.4    +      -       -      -
    427A  ILE      3.1    25.1    +      -       -      +
    428A  THR*     3.2    20.6    -      -       +      +
    429A  TRP*     6.0     0.7    -      -       +      -
----------------------------------------------------------
 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