apolipoprotein

American  

[ap-uh-lip-uh-proh-teen, -tee-in, -lahy-puh-] / ˌæp əˌlɪp əˈproʊ tin, -ti ɪn, -ˌlaɪ pə- /

noun

Biochemistry.

1. the lipid-free protein portion of a lipoprotein.

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apolipoprotein British  

/ -ˌlaɪ-, ˌæpəˌlɪpəʊˈprəʊtiːn /

noun

1. any of a group of glycoproteins that form part of the structure of lipoproteins, some of which have been associated with Alzheimer's disease

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apolipoprotein Scientific  

/ ăp′ə-lĭp′ō-prō′tēn′,-lī′pō- /

1. Any of various proteins that combine with a lipid to form a lipoprotein, such as high density lipoprotein (HDL) and low density lipoprotein (LDL). Apolipoproteins are important in the transport of cholesterol in the body and the regulation of the level of cholesterol in cells and blood.

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Etymology

Origin of apolipoprotein

apo- + lipoprotein

Example Sentences

Testing for another protein, apolipoprotein B, can also be performed for those with high triglycerides, diabetes or other conditions, the guidelines say.

From The Wall Street Journal • Mar. 13, 2026

Advanced age and carrying the apolipoprotein ε4 risk gene are already known risk factors.

From Science Daily • Feb. 14, 2024

APOE4 carriers have earlier and more abundant deposition of amyloid plaques because their version of apolipoprotein E decreases clearance of beta-amyloid from the brain and facilitates aggregation of the protein.

From Scientific American • Jul. 26, 2021

This was a very important drug, says Corey, because its intended effects on apolipoprotein B and cholesterol were directly observed in humans.

From Nature • Oct. 15, 2019

Scientists are also looking at the apolipoprotein E3 and ApoE4 genes to explore genetic triggers.

From Washington Times • May 2, 2018