Crystallization of a pentapeptide-repeat protein by reductive cyclic pentylation of free amines with glutaraldehyde
Abstract
A method to modify proteins with glutaraldehyde under reducing conditions is presented. Treatment with glutaraldehyde and dimethylaminoborane was found to result in cyclic pentylation of free amines and facilitated the structural determination of a protein previously recalcitrant to the formation of diffraction quality crystals.
- Publication:
-
Acta Crystallographica Section D
- Pub Date:
- April 2009
- DOI:
- 10.1107/S0907444909008324FILE: /proj/ads/abstracts/
- Bibcode:
- 2009AcCrD..65..462V
- Keywords:
-
- pentapeptide-repeat proteins;
- chemical modification;
- glutaraldehyde;
- reductive cyclic pentylation