Physiological roles of mitogen-activated-protein-kinase-activated p38-regulated/activated protein kinase

• 作者: Gianina Dumitriu Kari Jenssen Lgreid Sergiy Kostenko Ugo Moens
• 来源期刊: 世界生物化学杂志：英文版（电子版）
• 学科: 生物学
• 关键词: MITOGEN-ACTIVATED PROTEIN KINASE p38- regulated/activated PROTEIN KINASE Extracellular signalregulated KINASE PROTEIN KINASE A SUBCELLULAR localization Phosphorylation PROTEIN interaction
• 年，卷（期）: 2011,（5）
• 页码范围: 73-89
• 页数: 17页
• 分类号: Q55

摘要

Mitogen-activated protein kinases(MAPKs)are a family of proteins that constitute signaling pathways involved in processes that control gene expression,cell division, cell survival,apoptosis,metabolism,differentiation and motility.The MAPK pathways can be divided into conventional and atypical MAPK pathways.The first group converts a signal into a cellular response through a relay of three consecutive phosphorylation events exerted by MAPK kinase kinases,MAPK kinase,and MAPK.Atypical MAPK pathways are not organized into this three-tiered cascade.MAPK that belongs to both conventional and atypical MAPK pathways can phosphorylate both non-protein kinase substrates and other protein kinases.The latter are referred to as MAPK-activated protein kinases.This review focuses on one such MAPK-activated protein kinase,MAPK-activated protein kinase 5(MK5)or p38-regulated/activated protein kinase(PRAK).This protein is highly conserved throughout the animal kingdom and seems to be the target of both conventional and atypical MAPK pathways.Recent findings on the regulation of the activity and subcellular localization,bona fide interaction partners and physiological roles of MK5/PRAK are discussed.