Contacts of the strand formed by residues 140 - 148 (chain B) in PDB entry 2OPL


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 GLU 140 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177A  VAL*     4.3     1.8    -      -       -      -
    178A  PRO*     3.4    26.5    -      -       +      +
    180A  ALA*     5.2     8.0    -      -       -      +
    120B  GLY*     3.2    19.9    -      -       -      -
    121B  ASP*     3.3     7.8    +      -       -      +
    138B  TYR*     3.4     2.2    -      -       -      -
    139B  ARG*     1.3   102.9    +      -       -      +
    141B  ILE*     1.3    76.0    +      -       -      +
    142B  ARG*     2.9    43.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 141 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172A  THR*     4.9     1.1    -      -       +      -
    177A  VAL*     4.7     0.9    -      -       +      -
    178A  PRO      3.0     7.0    +      -       -      +
    179A  VAL*     3.2    12.3    -      -       +      -
    180A  ALA      2.9    24.4    +      -       -      +
     88B  LEU*     4.9     5.6    -      -       +      -
     89B  LEU*     4.0    20.9    -      -       +      -
     92B  LEU*     3.8    27.6    -      -       +      -
    118B  TYR*     5.0     0.7    -      -       +      -
    119B  GLU      3.4    10.5    -      -       -      +
    120B  GLY*     4.2     2.7    -      -       -      -
    138B  TYR*     3.8    36.8    -      -       +      -
    140B  GLU*     1.3    79.5    -      -       -      +
    142B  ARG*     1.3    66.9    +      -       -      +
    143B  VAL*     4.2     9.2    -      -       +      -
    173B  VAL*     4.1    26.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 142 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  LYS*     5.2     1.2    -      -       -      +
    180A  ALA*     3.4    14.4    -      -       +      +
    182A  LEU*     5.8     1.8    -      -       +      -
    117B  ARG      3.9     0.5    -      -       -      +
    118B  TYR*     3.4     3.6    -      -       -      -
    119B  GLU*     2.8    78.6    +      -       +      +
    121B  ASP*     2.9    37.8    +      -       -      +
    139B  ARG*     3.5     8.2    -      -       -      +
    140B  GLU*     2.9    44.0    +      -       -      +
    141B  ILE*     1.3    75.6    -      -       -      +
    143B  VAL*     1.3    61.9    +      -       -      +
    144B  PHE*     4.7    16.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 143 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    179A  VAL*     4.2    19.5    -      -       +      -
    180A  ALA      2.7    15.8    +      -       -      +
    181A  VAL*     3.4    11.1    -      -       +      -
    182A  LEU*     2.8    30.3    +      -       -      +
     92B  LEU*     4.2     2.9    -      -       +      -
     96B  LEU*     4.3     2.7    -      -       +      -
    117B  ARG      3.3     4.5    -      -       -      +
    118B  TYR*     3.3    47.6    -      -       +      -
    141B  ILE*     4.2     5.8    -      -       +      -
    142B  ARG*     1.3    79.6    -      -       -      +
    144B  PHE*     1.3    68.7    +      -       -      +
    145B  PHE*     3.7    25.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 144 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    182A  LEU*     3.3    49.4    -      -       +      -
    183A  LEU      4.2    10.8    -      -       -      -
    184A  ASP*     4.3     7.6    -      -       +      -
    116B  SER*     3.2     4.4    -      -       -      -
    117B  ARG*     2.9    79.4    +      -       +      +
    142B  ARG*     4.7    16.6    -      -       +      -
    143B  VAL*     1.3    79.9    -      -       -      +
    145B  PHE*     1.3    62.5    +      -       -      +
    146B  SER*     5.2     0.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 145 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    181A  VAL*     3.8    23.8    -      -       +      -
    182A  LEU      2.9     6.9    +      -       -      -
    183A  LEU*     3.5     8.0    -      -       -      +
    184A  ASP      2.8    28.6    +      -       -      -
     96B  LEU*     3.9    23.3    -      -       +      -
     97B  THR*     3.7    20.0    -      -       -      -
    100B  LEU*     3.9    19.7    -      -       +      -
    114B  VAL*     3.7    23.6    -      -       +      -
    115B  LYS      3.5    11.9    -      -       -      -
    116B  SER*     3.7    10.5    -      -       -      -
    118B  TYR*     3.6    15.3    -      -       -      -
    143B  VAL*     3.7    21.1    -      -       +      -
    144B  PHE*     1.3    73.2    -      -       -      +
    146B  SER*     1.3    58.9    +      -       -      +
    147B  ILE*     4.1     4.7    -      -       +      -
    160B  ILE*     3.9    21.3    -      -       +      -
    163B  ALA*     5.8     1.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 146 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    184A  ASP*     3.5    33.7    +      -       -      +
    113B  GLY      4.2     0.5    -      -       -      +
    114B  VAL*     3.5     3.5    -      -       -      +
    115B  LYS*     2.9    60.5    +      -       -      +
    116B  SER*     6.0     0.2    -      -       -      -
    117B  ARG*     4.8     3.5    +      -       -      -
    144B  PHE      4.2     0.5    +      -       -      -
    145B  PHE*     1.3    71.7    -      -       -      +
    147B  ILE*     1.3    62.4    +      -       -      +
    148B  ASP      4.3     0.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 147 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    183A  LEU*     4.7     5.1    -      -       +      +
    184A  ASP      5.3     0.4    +      -       -      -
    100B  LEU*     4.0    29.6    -      -       +      -
    111B  LEU*     3.9    16.2    -      -       +      -
    113B  GLY      3.6     7.6    -      -       -      +
    114B  VAL*     4.6    10.8    -      -       +      -
    145B  PHE*     4.3     8.7    +      -       +      -
    146B  SER*     1.3    78.8    -      -       -      +
    148B  ASP*     1.3    59.3    +      -       -      +
    149B  ALA*     3.9    20.9    -      -       +      -
    156B  LYS*     2.8    64.9    +      -       +      +
    159B  LEU*     4.6     4.9    -      -       +      -
    160B  ILE*     4.1    19.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 148 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111B  LEU*     4.1     0.3    -      -       -      -
    112B  ARG*     2.8    67.3    +      -       -      +
    113B  GLY*     2.9    25.0    +      -       -      +
    146B  SER      4.2     0.8    -      -       -      -
    147B  ILE*     1.3    68.0    -      -       -      +
    149B  ALA*     1.3    60.7    +      -       -      +
    156B  LYS*     5.0     0.4    -      -       -      +
----------------------------------------------------------
 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