Mutation within the transmembrane domain of oxidized low-density lipoprotein receptor 1 influences oxidized low-density lipoprotein-induced signal transduction.

ABSTRACT: ObjectiveTo investigate the important active sites within the NTFs to affect the in vitro interaction of oxidized low-density lipoprotein (ox-LDL) with its receptor, OLR1.MethodsSimulation analysis online was performed to generate various OLR1 chimeras, truncation mutants, and site-specific mutations. They were transfected in COS-7 cells and subjected to ox-LDL stimulations to observe the different reactions. Immunoprecipitation-mass spectrometry (IP-MS) was performed to show what proteins combined with OLR1 mutants in reaction to ox-LDL. Lipid uptake in human monocytes (THP-1) originated foam cells overexpressing somatic mutant of OLR1 were also determined. Further studies focusing on these regions were conducted using truncation mutants and site-specific mutants such as G43A, V44A

SUBMITTER: Ma Z 

PROVIDER: S-EPMC12174723 | biostudies-literature | 2025 Jan-Dec

REPOSITORIES: biostudies-literature