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・ MSPA
・ MSPB
・ MSPCA-Angell
・ MSPE
・ MSPL Limited
・ MSpot
・ MSPP
・ MSPs' salaries, expenses and allowances
・ MSPVL Polytechnic College
・ MSpy
・ MSQL
・ MSQL-JDBC
・ MSR
・ MSR Houston
・ MSR Studios
MSR1
・ MSRA
・ MSRA (gene)
・ MSRAM
・ MSRB
・ MSRB2
・ MSrE M-19
・ MSrE M-21
・ MSrE M-24
・ MSRP (disambiguation)
・ MSRT
・ MSS
・ MSS-1.2
・ MSSA
・ MSSI


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MSR1 : ウィキペディア英語版
MSR1

Macrophage scavenger receptor 1, also known as MSR1, is a protein which in humans is encoded by the ''MSR1'' gene.〔(【引用サイトリンク】 url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=4481 )
MSR1 has also recently been designated CD204 (cluster of differentiation 204).
== Function ==

This gene encodes the class A macrophage scavenger receptors, which include three different types (1, 2, 3) generated by alternative splicing of this gene. These receptors or isoforms are trimeric integral membrane glycoproteins and have been implicated in many macrophage-associated physiological and pathological processes including atherosclerosis, Alzheimer's disease, and host defense. They were thought to be expressed macrophage-specific, but recently shown to be present on different dendritic cells classes, too.
The isoforms type 1 and type 2 are functional receptors and are able to mediate the endocytosis of modified low density lipoproteins (LDLs). The isoform type 3 does not internalize modified LDL (acetyl-LDL) despite having the domain shown to mediate this function in the types 1 and 2 isoforms. It has an altered intracellular processing and is trapped within the endoplasmic reticulum, making it unable to perform endocytosis. The isoform type 3 can inhibit the function of isoforms type 1 and type 2 when co-expressed, indicating a dominant negative effect and suggesting a mechanism for regulation of scavenger receptor activity in macrophages.〔(【引用サイトリンク】 url = http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=4481 )

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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