Structural relationship of human apolipoprotein B48 to apolipoprotein B100.
نویسندگان
چکیده
منابع مشابه
Susceptibility to atherosclerosis in mice expressing exclusively apolipoprotein B48 or apolipoprotein B100.
All classes of lipoproteins considered to be atherogenic contain apo-B100 or apo-B48. However, there is a distinct paucity of data regarding whether lipoproteins containing apo-B48 or apo-B100 differ in their intrinsic ability to promote the development of atherosclerosis. To address this issue, we compared the extent of atherosclerosis in three groups of animals: apo-E-deficient mice (apo-B+/+...
متن کاملWhy does the gut choose apolipoprotein B48 but not B100 for chylomicron formation?
Chylomicrons produced by the human gut contain apolipoprotein (apo) B48, whereas very-low-density lipoproteins made by the liver contain apo B100. To study how these molecules function during lipid absorption, we examined the process as it occurs in apobec-1 knockout mice (able to produce only apo B100; KO) and in wild-type mice (of which the normally functioning intestine makes apo B48, WT). U...
متن کاملIsolation and characterization of apolipoprotein B48-containing lipoproteins with a monoclonal antibody against apolipoprotein B48.
AIM Remnant lipoproteins are well known to play a pivotal role in atherosclerosis. In patients with postprandial dyslipidemia, metabolic pathways for exogenous lipoproteins are generally disturbed, resulting in accumulation of chylomicron remnants. Although it has been difficult to make a specific antibody against apolipoprotein B48 (apoB48) , a constituent of exogenous lipoproteins, we succeed...
متن کاملApolipoprotein B48, the Structural Component of Chylomicrons, Is Sufficient to Antagonize Staphylococcus aureus Quorum-Sensing
Serum lipoproteins (LP) are increasingly being recognized as dual purpose molecules that contribute to both cholesterol homeostasis and host innate defense. In fact, very low LP levels are associated with increased risk of bacterial infection in critically ill patients. In this respect, we reported that apolipoprotein B100 (apoB100), the 4536 amino acid structural protein of very low density li...
متن کاملSuperior role of apolipoprotein B48 over apolipoprotein B100 in chylomicron assembly and fat absorption: an investigation of apobec-1 knock-out and wild-type mice.
Editing of apolipoprotein (apo)-B100 mRNA to yield apo-B48 is a specific and developmentally regulated step in enterocytes of mammals. However, the functional significance of this step is not known. Since mice containing only apo-B100 have not been documented to exhibit any difference in intestinal fat absorption from wild-type mice, the evolutionary advantage of apoB mRNA editing has been ques...
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ژورنال
عنوان ژورنال: Journal of Clinical Investigation
سال: 1987
ISSN: 0021-9738
DOI: 10.1172/jci113273