SREC-I, a Type F Scavenger Receptor, Is an Endocytic Receptor for Calreticulin
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منابع مشابه
The Scavenger Receptor SREC-I Cooperates with Toll-Like Receptors to Trigger Inflammatory Innate Immune Responses
Scavenger receptor expressed by endothelial cell-I (SREC-I) is a class F scavenger receptor expressed by immune cells with a significant role in CD8(+)- and CD4(+)-mediated T cell immunity. This receptor can also modulate the function of toll-like receptors (TLRs), which play essential roles in innate immunity. Earlier, it was found that human monocyte/macrophage THP1 cells and bone marrow-deri...
متن کاملScavenger receptor class B type I is a multiligand HDL receptor that influences diverse physiologic systems.
Scavenger receptors (SRs) are defined as cell surface membrane proteins that bind chemically modified lipoproteins, such as acetylated LDL (AcLDL) and oxidized LDL (OxLDL), and often many other types of ligands (1–3). Initially, scavenger receptor activity was identified as “AcLDL receptor activity” by Brown, Goldstein, and colleagues (2), who were developing an in vitro model for the depositio...
متن کاملCalreticulin Is a Receptor for Nuclear Export
In previous work, we used a permeabilized cell assay that reconstitutes nuclear export of protein kinase inhibitor (PKI) to show that cytosol contains an export activity that is distinct from Crm1 (Holaska, J.M., and B.M. Paschal. 1995. Proc. Natl. Acad. Sci. USA. 95: 14739-14744). Here, we describe the purification and characterization of the activity as calreticulin (CRT), a protein previousl...
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Scavenger receptor class B type I (SR-BI) is a multi-ligand receptor that binds a variety of lipoproteins, including high density lipoprotein (HDL) and low density lipoprotein (LDL), but lipoprotein(a) [Lp(a)] has not been investigated as a possible ligand. Stable cell lines (HEK293 and HeLa) expressing human SR-BI were incubated with protein- or lipid-labeled Lp(a) to investigate SR-BI-depende...
متن کاملScavenger receptor class B type I as a receptor for oxidized low density lipoprotein.
Scavenger receptor class B type I (SR-BI) has been established as the primary mediator of the selective transfer of lipids from HDL to mammalian cells. In addition to its role in cholesterol metabolism, SR-BI has been shown to bind apoptotic cells and thus could in theory also function as a scavenger receptor. We now show that SR-BI binds oxidized LDL (OxLDL) with high affinity (K(d) of 4.0 +/-...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 2004
ISSN: 0021-9258
DOI: 10.1074/jbc.m406202200