Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8942625 | Analytical Biochemistry | 2018 | 11 Pages |
Abstract
Polyubiquitylation is one of the most versatile post-translational modifications involved in the regulation of numerous intracellular signaling processes. An assembly procedure that is simple, robust, and efficient to synthesize and purify linkage-specific polyubiquitin chains of defined length at a preparative scale is required in biophysical and structural studies. Here, we have optimized known enzymatic procedures in the form of a protocol to obtain multi-milligrams of Lys48-and Lys63-linked polyubiquitin chain types with more than 99% purity. Mass spectrometry (ESI/MS) analysis of K48- and K63-linked diubiquitin confirmed that the enzymes used in the preparation generated homogeneous linkages with no promiscuity.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Anshumali Mittal, Binita Shakya,