Contacts of the strand formed by residues 29 - 36 (chain A) in PDB entry 2EWY


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 GLY 29 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  GLY*     3.4     6.1    -      -       -      -
     25A  ASP*     2.9    30.3    +      -       -      +
     26A  SER      4.3     2.3    +      -       -      -
     27A  GLY      3.6     1.4    -      -       -      -
     28A  ARG*     1.3    82.5    -      -       -      +
     30A  TYR*     1.3    63.1    +      -       -      -
     31A  TYR*     4.1     7.1    -      -       -      -
     46A  LEU*     4.0    12.6    -      -       -      -
    131A  TRP*     5.0     0.4    -      -       -      -
    242A  SER      5.7     4.3    -      -       -      -
    245A  THR*     5.0     3.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 30 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22A  LEU*     4.2    17.3    -      -       +      -
     23A  GLN      3.3     7.2    -      -       -      +
     24A  GLY      3.6    17.9    -      -       -      -
     25A  ASP*     3.5    20.6    -      -       -      -
     26A  SER*     3.6     7.1    +      -       -      -
     29A  GLY*     1.3    77.7    -      -       -      -
     31A  TYR*     1.3    62.0    +      -       -      +
     46A  LEU*     3.2     7.7    -      -       -      +
     47A  VAL*     2.9    31.9    +      -       +      +
    168A  MET*     5.7     2.2    -      -       -      -
    170A  MET*     3.2    48.2    -      -       +      +
    171A  CYS      3.3    11.6    +      -       -      -
    184A  GLY      3.5    30.5    -      -       -      -
    185A  GLY*     4.4     4.3    -      -       -      -
    242A  SER      5.8     2.8    +      -       -      -
    347A  ALA*     5.2     1.8    -      -       +      -
    351A  GLU*     2.6    29.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 31 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  ASN      4.1     0.7    -      -       -      +
     22A  LEU*     3.5     8.0    -      -       -      -
     23A  GLN*     2.7    83.4    +      -       +      +
     24A  GLY*     3.9     7.4    -      -       -      -
     29A  GLY      4.1     7.0    -      -       -      -
     30A  TYR*     1.3    76.4    -      -       -      +
     32A  LEU*     1.3    58.1    +      -       -      +
     33A  GLU      4.3     0.2    +      -       -      -
     44A  GLN*     3.7    34.5    -      -       +      -
     45A  ILE      2.9    22.2    -      -       -      +
     46A  LEU*     4.0     0.9    -      -       -      -
    130A  LYS*     3.3    49.9    +      -       +      +
    131A  TRP*     4.0    25.4    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 32 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  ASN*     3.5    42.4    -      -       +      +
     22A  LEU*     3.7    13.4    -      -       +      +
     31A  TYR*     1.3    74.5    -      -       -      +
     33A  GLU*     1.3    67.0    +      -       -      +
     34A  MET*     3.5    28.7    +      -       +      -
     44A  GLN*     3.6     2.8    -      -       -      -
     45A  ILE*     2.6    46.0    +      -       +      +
     47A  VAL*     4.1     7.4    -      -       +      +
    103A  ILE*     4.0    28.0    -      -       +      -
    105A  LYS      5.5     0.2    -      -       -      +
    135A  LEU*     4.4     4.5    -      -       +      -
    187A  LEU*     4.0    17.9    -      -       +      -
    189A  LEU*     4.9     0.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 33 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  ASN      4.5     3.2    +      -       -      +
     31A  TYR      4.3     0.8    +      -       -      -
     32A  LEU*     1.3    83.7    -      -       -      +
     34A  MET*     1.3    64.6    +      -       -      +
     35A  LEU*     4.3     4.7    -      -       -      +
     42A  LYS*     2.9    41.8    +      -       +      +
     43A  LEU      3.5    11.9    -      -       -      +
     44A  GLN*     3.6    18.8    +      -       -      +
    103A  ILE*     4.4     2.8    -      -       -      +
    104A  PRO*     3.2    39.5    -      -       +      +
    105A  LYS*     6.0     5.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 34 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  LEU*     3.5    28.5    -      -       +      +
     33A  GLU*     1.3    75.1    -      -       -      +
     35A  LEU*     1.3    65.0    -      -       -      +
     36A  ILE*     4.6     3.8    -      -       +      -
     41A  GLN      3.8     0.3    -      -       -      +
     42A  LYS*     3.9     0.5    -      -       -      -
     43A  LEU*     2.9    32.9    +      -       -      +
     45A  ILE*     3.3    26.7    -      -       +      -
     54A  PHE*     3.2    32.8    -      -       +      -
    101A  VAL*     4.0    15.0    -      -       +      -
    102A  THR      3.6    11.2    -      -       -      +
    103A  ILE*     4.0     8.7    -      -       +      -
    104A  PRO*     3.9     0.9    -      -       -      -
    135A  LEU*     4.0    13.7    -      -       +      -
    152A  PHE*     3.6    23.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 35 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  GLU*     4.3     8.5    -      -       -      +
     34A  MET*     1.3    74.1    -      -       -      +
     36A  ILE*     1.3    62.9    +      -       -      +
     37A  GLY      5.4     0.2    -      -       -      -
     40A  PRO*     4.0    26.2    -      -       +      -
     41A  GLN      3.4     1.3    -      -       -      -
     42A  LYS*     3.8    34.5    -      -       +      +
    100A  LEU      4.0     0.2    -      -       -      +
    101A  VAL*     3.5     5.2    -      -       -      +
    102A  THR*     2.8    50.1    +      -       +      +
    104A  PRO*     3.8    22.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 36 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  MET*     4.4     8.3    -      -       +      +
     35A  LEU*     1.3    79.2    -      -       -      +
     37A  GLY*     1.3    67.3    +      -       -      +
     39A  PRO      3.6     1.2    -      -       -      +
     41A  GLN*     2.8    47.4    +      -       -      +
     43A  LEU*     3.2    35.4    -      -       +      -
     54A  PHE*     4.1    17.0    -      -       +      -
     56A  VAL*     4.0    14.4    -      -       +      -
     68A  PHE*     3.5    30.6    -      -       +      -
     99A  ASP*     4.6     5.4    -      -       +      -
    100A  LEU      3.8     7.4    -      -       -      +
    101A  VAL*     4.7    11.4    -      -       +      -
    115A  ILE*     4.1    15.3    -      -       +      -
----------------------------------------------------------
 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