Subcellular modulation of protein VlsE stability and folding kinetics. Issue 10 (17th May 2016)

• Record Type: Journal Article
• Authors: Tai, Jonathan; Dave, Kapil; Hahn, Vincent; Guzman, Irisbel; Gruebele, Martin
• Is Part Of: FEBS letters. Volume 590:Issue 10(2016)
• Page Start: 1409
• Page End: 1416
• Publication Date: 2016-05-17
• Subjects: cellular compartments -- folding kinetics -- protein stability -- quinary interaction; Biochemistry -- Periodicals; Biophysics -- Periodicals; Molecular biology -- Periodicals; Biochimie -- Périodiques; Biochemistry; Biophysics; Molecular biology; Periodicals; 572.05
• DOI: 10.1002/1873-3468.12193
• Languages: English
• ISSNs: 0014-5793

Abstract

Abstract : The interior of a cell interacts differently with proteins than a dilute buffer because of a wide variety of macromolecules, chaperones, and osmolytes that crowd and interact with polypeptide chains. We compare folding of fluorescent constructs of protein VlsE among three environments inside cells. The nucleus increases the stability of VlsE relative to the cytoplasm, but slows down folding kinetics. VlsE is also more stable in the endoplasmic reticulum, but unlike PGK, tends to aggregate there. Although fluorescent‐tagged VlsE and PGK show opposite stability trends from in vitro to the cytoplasm, their trends from cytoplasm to nucleus are similar. Abstract :