Contacts of the strand formed by residues 322 - 331 (chain A) in PDB entry 2WXL


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 PRO 322 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320A  GLU      3.6     4.0    -      -       -      +
    321A  GLN*     1.3    96.0    -      -       +      +
    323A  PHE*     1.3    64.3    +      -       -      +
    324A  SER*     3.6     9.0    +      -       -      -
    376A  GLU*     3.6    32.3    -      -       -      +
    377A  PHE      3.4    16.8    -      -       -      +
    378A  ASP*     5.5     0.4    -      -       -      -
    379A  ILE      3.2    12.6    -      -       -      +
    380A  SER*     4.3     0.7    -      -       -      -
    381A  VAL*     4.1     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 323 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    321A  GLN      3.6     2.0    +      -       -      -
    322A  PRO*     1.3    73.0    -      -       -      +
    324A  SER*     1.3    61.4    +      -       -      +
    325A  ILE*     3.7    23.3    -      -       +      -
    347A  LEU*     3.7    21.5    -      -       +      -
    376A  GLU*     3.5     0.9    -      -       -      +
    377A  PHE*     2.6    74.7    +      +       +      -
    379A  ILE*     2.7    24.4    +      -       +      +
    381A  VAL*     3.8    18.6    -      -       +      +
    384A  LEU*     3.7    24.0    -      -       +      -
    390A  LEU*     4.3     1.8    -      -       +      -
    425A  LEU*     3.5    32.5    -      -       +      -
    432A  LEU*     5.6     7.2    -      -       +      -
    475A  LEU*     4.4     8.5    -      -       +      -
    476A  PRO*     5.5     3.4    -      -       +      -
    478A  VAL*     6.3     1.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 324 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322A  PRO      3.9     6.1    +      -       -      -
    323A  PHE*     1.3    84.5    -      -       -      +
    325A  ILE*     1.3    67.7    +      -       -      +
    374A  ARG*     4.5    17.6    +      -       -      -
    375A  LEU      3.1    15.3    -      -       -      -
    376A  GLU*     3.8    19.3    +      -       -      -
    377A  PHE*     4.0     2.2    -      -       -      -
    476A  PRO*     3.2    33.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 325 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    323A  PHE*     3.7    18.4    -      -       +      -
    324A  SER*     1.3    79.5    -      -       -      +
    326A  GLU*     1.3    63.6    +      -       -      +
    327A  LEU*     4.5     3.8    -      -       +      +
    374A  ARG*     3.5    10.3    -      -       -      +
    375A  LEU*     2.7    56.7    +      -       +      +
    377A  PHE*     4.0     8.7    -      -       +      -
    390A  LEU*     3.8     7.4    -      -       +      -
    392A  PHE*     3.6    35.7    -      -       +      -
    473A  ILE*     4.1    14.8    -      -       +      -
    474A  TYR      3.6     8.7    -      -       -      +
    475A  LEU*     3.5    27.8    -      -       +      -
    476A  PRO*     4.5     0.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 326 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325A  ILE*     1.3    76.6    -      -       -      +
    327A  LEU*     1.3    65.8    +      -       -      +
    328A  ILE*     3.7    15.1    +      -       +      +
    372A  LYS*     3.8    25.1    -      -       -      +
    373A  GLN      3.5    18.2    -      -       -      +
    374A  ARG*     3.6    23.7    +      -       -      +
    473A  ILE*     3.3    10.0    -      -       -      +
    474A  TYR*     3.0    50.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 327 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325A  ILE*     4.0     4.5    +      -       +      +
    326A  GLU*     1.3    70.5    -      -       -      +
    328A  ILE*     1.3    61.5    +      -       -      +
    329A  GLU      5.0     0.4    -      -       -      +
    343A  VAL*     3.8    21.3    -      -       +      -
    360A  SER*     3.0    31.2    -      -       -      +
    371A  TRP*     3.4    35.7    -      -       +      +
    372A  LYS*     3.3     7.3    +      -       -      -
    373A  GLN*     2.9    37.8    +      -       +      +
    375A  LEU*     4.7    16.6    -      -       +      +
    392A  PHE*     5.4     2.0    -      -       +      -
    471A  LEU*     4.0    26.0    -      -       +      -
    472A  VAL      4.3     2.0    -      -       -      +
    473A  ILE*     4.5    13.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 328 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    326A  GLU*     4.2    20.9    -      -       -      +
    327A  LEU*     1.3    73.7    -      -       -      +
    329A  GLU*     1.3    72.0    +      -       +      +
    370A  VAL*     4.2     0.3    -      -       -      +
    371A  TRP*     1.9    35.6    +      -       -      +
    372A  LYS*     3.7    27.7    -      -       +      +
    436A  GLU*     4.4    12.3    -      -       +      -
    472A  VAL*     3.1    25.5    +      -       +      +
    473A  ILE      3.6    31.6    -      -       -      +
    474A  TYR*     3.7    15.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 329 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    327A  LEU*     5.0     0.4    -      -       -      +
    328A  ILE*     1.3    88.8    -      -       +      +
    330A  GLY*     1.3    59.5    +      -       -      +
    331A  ARG*     4.1    22.5    +      -       -      +
    368A  GLU*     4.7     7.5    -      -       -      +
    369A  PRO      2.9    18.8    -      -       -      +
    370A  VAL*     3.5    23.5    -      -       +      +
    371A  TRP*     3.8    13.8    -      -       -      -
    372A  LYS*     5.3     3.0    +      -       -      -
    470A  ALA      3.9     0.3    -      -       -      +
    471A  LEU*     3.6     5.2    -      -       -      +
    472A  VAL*     3.0    44.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 330 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    329A  GLU*     1.3    75.2    -      -       -      +
    331A  ARG*     1.3    68.9    +      -       -      +
    332A  LYS*     5.2     1.1    -      -       -      -
    368A  GLU*     3.2    23.2    -      -       -      +
    369A  PRO*     2.8    24.2    +      -       -      +
    371A  TRP*     3.5     8.1    -      -       -      -
    394A  LEU*     6.2     0.9    -      -       -      -
    470A  ALA      3.2    10.5    -      -       -      -
    471A  LEU*     4.1     4.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 331 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    329A  GLU*     4.1    18.4    +      -       -      +
    330A  GLY*     1.3    76.2    -      -       -      +
    332A  LYS*     1.3    61.0    -      -       -      +
    368A  GLU*     3.0    31.2    -      -       -      +
    369A  PRO*     4.0     0.4    -      -       -      +
    438A  CYS*     3.5    26.9    -      -       -      -
    440A  TYR*     4.3     8.5    +      -       -      -
    468A  ALA      4.3     1.7    -      -       -      +
    469A  ALA*     3.0    24.1    -      -       -      -
    470A  ALA*     3.1    24.5    +      -       +      +
    472A  VAL*     3.9    20.6    -      -       -      +
----------------------------------------------------------
 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