ArticleFEBS letters2023
Proteolysis of the low-density lipoprotein receptor in hepatocytes is mediated by BMP1 but not by other astacin proteases.
Article in FEBS letters, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
1 citing paper in PubMed, 4 citations in OpenAlex.
- Post-translational regulation of the low-density lipoprotein receptor provides new targets for cholesterol regulation.Biochemical Society transactions · 2024Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Bone morphogenetic protein 1 (BMP1), a member of the astacin family of zinc-metalloproteases, proteolytically cleaves the low-density lipoprotein receptor (LDLR) within its ligand-binding domain, reducing the binding and cellular uptake of LDL-cholesterol. Here, we aimed to determine whether astacin proteases other than BMP1 may also cleave LDLR. Although human hepatocytes express all six astacin proteases, including the meprins and mammalian tolloid, we found through pharmacological inhibition and genetic knockdown that only BMP1 contributed to the cleavage of LDLR in its ligand-binding domain. We also found that the minimum amino acid change required to render mouse LDLR susceptible to cleavage by BMP1 is mutation at the P1' and P2 positions of the cleavage site. When expressed in cells, the resulting humanised-mouse LDLR internalised LDL-cholesterol. This work provides insight into the biological mechanisms regulating LDLR function.
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