期刊
ARCHIVES OF BIOCHEMISTRY AND BIOPHYSICS
卷 568, 期 -, 页码 8-15出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.abb.2014.12.031
关键词
TUDCA; PERK; UPR; BSA; Protein aggregation; LC-MS/MS; COX1; EcoR1
资金
- CSIR - India
- UGC - India
- DST - India, New-Delhi
Tauroursodeoxycholic acid (TUDCA) a bile salt and chemical chaperone reduces stress-induced 'aggregation of proteins; activates PERK [PKR (RNA-dependent protein kinase)-like ER (endoplasmic reticulum) kinasel or ElF2AK3, one of the hallmarks of ER stress induced unfolded protein response (UPR) in human hepatoblastoma HepG2 cells; prevents heat and dithiothreitol (DTT) induced aggregation of BSA (bovine serum albumin), and reduces ANS (1-anilino-naphthalene-8-sulfonate) bound BSA fluorescence in vitro. TUDCA inactivates heat treated, but not the native EcoR1 enzyme, and reduces heat-induced aggregation and activity of COX-1 (cyclooxygenase enzyme-1) in vitro. These findings suggest that TUDCA binds to the hydrophobic regions of proteins and prevents their subsequent aggregation. This may stabilize unfolded proteins that can mount UPR or facilitate their degradation through cellular degradation pathways. (C) 2015 Elsevier Inc. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据