Biologically Active Substance
apolipoproteins B
Subclass of:
Apolipoproteins
Definitions related to apolipoproteins b:
  • Structural proteins of chylomicrons, VLDL, and LDL; important in secretion and transport of lipoproteins; binding proteins for LDL receptor pathway.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • Major structural proteins of triacylglycerol-rich LIPOPROTEINS. There are two forms, apolipoprotein B-100 and apolipoprotein B-48, both derived from a single gene. ApoB-100 expressed in the liver is found in low-density lipoproteins (LIPOPROTEINS, LDL; LIPOPROTEINS, VLDL). ApoB-48 expressed in the intestine is found in CHYLOMICRONS. They are important in the biosynthesis, transport, and metabolism of triacylglycerol-rich lipoproteins. Plasma Apo-B levels are high in atherosclerotic patients but non-detectable in ABETALIPOPROTEINEMIA.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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