[EN] ARTIFICIALLY SYNTHESIZED SPHINGOSINE DERIVATIVE LIPOID MONOMER AND USE OF SAME FOR DELIVERING NUCLEIC ACID<br/>[FR] MONOMÈRE LIPOÏDE DÉRIVÉ DE SPHINGOSINE SYNTHÉTISÉ ARTIFICIELLEMENT ET SON UTILISATION POUR L'ADMINISTRATION D'ACIDE NUCLÉIQUE<br/>[ZH] 人工合成的鞘氨醇衍生物类脂质单体及其递送核酸的用途
The Synthesis and Biological Characterization of a Ceramide Library
作者:Young-Tae Chang、Jaehwa Choi、Sheng Ding、Eva E. Prieschl、Thomas Baumruker、Jae-Mok Lee、Sung-Kee Chung、Peter G. Schultz
DOI:10.1021/ja017576o
日期:2002.3.1
A facile synthesis of a combinatorial ceramide library and their activities in the NF-kappaB pathway and in apoptosis induction/prevention were demonstrated. A novel NF-kappaB activating molecule was discovered among ceramide containing beta-galactose, and the structural requirements of ceramides for apoptosis induction was elucidated.
WO2019200293A5
申请人:——
公开号:WO2019200293A5
公开(公告)日:2022-04-19
Cloning of an Alkaline Ceramidase from Saccharomyces cerevisiae
作者:Cungui Mao、Ruijuan Xu、Alicja Bielawska、Lina M. Obeid
DOI:10.1074/jbc.275.10.6876
日期:2000.3
Ceramide is not only a core intermediate of sphingolipids but also an important modulator of many cellular events including apoptosis, cell cycle arrest, senescence, differentiation, and stress responses. Its turnover may be tightly regulated. However, little is known about the regulation of its metabolism because most enzymes responsible for its synthesis and breakdown have yet to be cloned. Here we report the cloning and characterization of the yeast gene YPC1 (YBR183w) by screening Saccharomyces cerevisiae genes whose overexpression bestows resistance to fumonisin B1. We demonstrate that the yeast gene YPC1 encodes an alkaline ceramidase activity responsible for the breakdown of dihydroceramide and phytoceramide but not unsaturated ceramide. YPC1 ceramidase activity was confirmed by in vitro studies using an Escherichia coli expression system. Importantly, YPC1p also has reverse activity, catalyzing synthesis of phytoceramide from palmitic acid and phytosphingosine. This ceramide synthase activity is CoA-independent and is resistant to fumonisin B1, thus explaining why YPC1 was cloned as a fumonisin B1-resistant gene.
Keratin fiber strengthening agent and method for strengthening keratin fiber