Biomaterial Database

Protein content and composition of human high density lipoprotein subfractions. 1979

B Rubenstein

High density lipoprotein (HDL) was fractionated by ion exchange column chromatography using a continuous NaCl gradient of 0.06--0.13 M. It was found that, on the basic C apoprotein content, HDL is comprised of 3 subfractions. All 3 subfractions contain apo A-I and apo A-II but the apo A-I/apo A-II ratio is different in each subfraction and in the case of subfraction c, that fraction which eluted at highest NaCl concentrations, the A-I/A-II ratio varied even within this subfraction. Subfraction a contained no C apoprotein, subfraction b contained apo C-II and apo C-III-1 but no apo C-III-2 while subfraction c contained apo C-III-2 and trace amounts of apo C-II and C-III-1. Analysis of HDL2 and HDL3 shows that both contain all 3 lipoprotein subfractions, but in differing quantities.

UI	MeSH Term	Description	Entries
D008075	Lipoproteins, HDL	A class of lipoproteins of small size (4-13 nm) and dense (greater than 1.063 g/ml) particles. HDL lipoproteins, synthesized in the liver without a lipid core, accumulate cholesterol esters from peripheral tissues and transport them to the liver for re-utilization or elimination from the body (the reverse cholesterol transport). Their major protein component is APOLIPOPROTEIN A-I. HDL also shuttle APOLIPOPROTEINS C and APOLIPOPROTEINS E to and from triglyceride-rich lipoproteins during their catabolism. HDL plasma level has been inversely correlated with the risk of cardiovascular diseases.	High Density Lipoprotein,High-Density Lipoprotein,High-Density Lipoproteins,alpha-Lipoprotein,alpha-Lipoproteins,Heavy Lipoproteins,alpha-1 Lipoprotein,Density Lipoprotein, High,HDL Lipoproteins,High Density Lipoproteins,Lipoprotein, High Density,Lipoprotein, High-Density,Lipoproteins, Heavy,Lipoproteins, High-Density,alpha Lipoprotein,alpha Lipoproteins
D002847	Chromatography, Agarose	A method of gel filtration chromatography using agarose, the non-ionic component of agar, for the separation of compounds with molecular weights up to several million.	Chromatography, Sepharose,Agarose Chromatography,Sepharose Chromatography,Agarose Chromatographies,Chromatographies, Agarose,Chromatographies, Sepharose,Sepharose Chromatographies
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001059	Apoproteins	The protein components of a number of complexes, such as enzymes (APOENZYMES), ferritin (APOFERRITINS), or lipoproteins (APOLIPOPROTEINS).	Apoprotein
D001161	Arteriosclerosis	Thickening and loss of elasticity of the walls of ARTERIES of all sizes. There are many forms classified by the types of lesions and arteries involved, such as ATHEROSCLEROSIS with fatty lesions in the ARTERIAL INTIMA of medium and large muscular arteries.	Arterioscleroses