Contacts of the strand formed by residues 33 - 37 (chain B) in PDB entry 3E5X


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 LEU 33 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32B  GLY*     1.3    81.8    -      -       -      +
     34B  ILE*     1.3    66.0    +      -       -      +
     35B  ARG*     3.5    11.7    +      -       +      -
    105B  CYS*     3.3     2.9    -      -       -      -
    106B  TRP*     2.8    50.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 34 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29B  THR*     4.0    21.1    -      -       +      +
     32B  GLY      4.2     1.1    +      -       -      +
     33B  LEU*     1.3    71.3    -      -       -      +
     35B  ARG*     1.3    68.5    +      -       -      +
     36B  ASP*     3.7    20.6    -      -       -      +
     57B  VAL*     4.7     7.0    -      -       +      -
    103B  ARG*     3.8    22.7    -      -       +      +
    104B  THR      3.2    11.9    -      -       -      +
    105B  CYS*     3.9    22.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 35 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33B  LEU*     3.5    12.7    +      -       +      +
     34B  ILE*     1.3    80.0    -      -       -      +
     36B  ASP*     1.3    62.5    +      -       -      +
     37B  PHE*     3.6    25.8    -      -       +      -
     43B  VAL      5.2     1.6    +      -       -      -
     48B  GLU*     5.1     8.1    +      -       -      -
    104B  THR*     2.7    48.1    +      -       -      +
    106B  TRP*     3.4    57.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 36 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34B  ILE*     3.7     6.2    -      -       -      +
     35B  ARG*     1.3    73.2    -      -       -      +
     37B  PHE*     1.3    75.2    +      -       -      +
    102B  THR      3.3     3.4    -      -       -      -
    103B  ARG*     2.8    52.2    +      -       -      +
    505B  3C4      3.4    29.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 37 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35B  ARG*     3.6    43.7    -      -       +      -
     36B  ASP*     1.3    77.9    -      -       -      +
     38B  ALA*     1.3    63.2    +      -       -      +
     41B  SER*     3.3    15.9    -      -       -      +
     42B  ALA      3.5    26.0    -      -       -      -
     43B  VAL*     3.8    22.9    -      -       +      -
     98B  ALA*     3.8    15.0    -      -       +      +
    100B  GLU      3.7     1.4    -      -       -      +
    101B  PRO*     3.4     2.3    -      -       -      +
    102B  THR*     2.8    40.0    +      -       +      +
    104B  THR*     3.5    28.3    -      -       +      -
    106B  TRP*     4.0    16.2    -      +       -      -
    505B  3C4      3.7     3.6    -      -       -      -
----------------------------------------------------------
 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