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Lipoproteins may be classified as five major groups, listed from larger and lower density to smaller and higher density. Lipoproteins are larger and less dense when the fat to protein ratio is increased. They are classified on the basis of electrophoresis, ultracentrifugation and nuclear magnetic resonance spectroscopy via the Vantera Analyzer ...
All plasma proteins except Gamma-globulins are synthesised in the liver. [1] Human serum albumin, osmolyte and carrier protein; α-fetoprotein, the fetal counterpart of serum albumin; Soluble plasma fibronectin, forming a blood clot that stops bleeding; C-reactive protein, opsonin on microbes, [2] acute phase protein; Various other globulins
Transferrin glycoproteins bind iron tightly, but reversibly. Although iron bound to transferrin is less than 0.1% (4 mg) of total body iron, it forms the most vital iron pool with the highest rate of turnover (25 mg/24 h). Transferrin has a molecular weight of around 80 kDa and contains two specific high-affinity Fe(III) binding sites.
Plasma proteins, sometimes referred to as blood proteins, are proteins present in blood plasma. They serve many different functions, including transport of lipids, hormones, vitamins and minerals in activity and functioning of the immune system. Other blood proteins act as enzymes, complement components, protease inhibitors or kinin precursors.
Due to the hydrophobic nature of membrane lipids, triglycerides and cholesterols, they require special transport proteins known as lipoproteins. [1] The amphipathic structure of lipoproteins allows the triglycerides and cholesterol to be transported through the blood. Chylomicrons are one sub-group of lipoproteins which carry the digested ...
1071 n/a Ensembl ENSG00000087237 n/a UniProt P11597 n/a RefSeq (mRNA) NM_000078 NM_001286085 n/a RefSeq (protein) NP_000069 NP_001273014 n/a Location (UCSC) Chr 16: 56.96 – 56.98 Mb n/a PubMed search n/a Wikidata View/Edit Human Cholesteryl ester transfer protein (CETP), also called plasma lipid transfer protein, is a plasma protein that facilitates the transport of cholesteryl esters and ...
Apolipoprotein A-I (apoA1) is the major structural protein component of high-density lipoproteins (HDL), although it is present in other lipoproteins in smaller amounts. [3] Apolipoprotein A-IV (apoA4) is present in chylomicrons, very-low-density lipoproteins (VLDL), and HDL.
Lipoproteins transfer lipids around the body in the extracellular fluid, making fats available to body cells for receptor-mediated endocytosis. [ 2 ] [ 3 ] Lipoproteins are complex particles composed of multiple proteins , typically 80–100 proteins per particle (organized by a single apolipoprotein B for LDL and the larger particles).