Active Lecithin Cholesterol Acyltransferase (LCAT)

phosphatidylcholine-sterol O-acyltransferase; Phospholipid-cholesterol acyltransferase

ACTIVITY TEST

LCAT (Phosphatidylcholine-sterol acyltransferase) is an enzyme in the extracellular metabolism of plasma lipoproteins, which converts cholesterol and phosphatidylcholines (lecithins) to cholesteryl esters and lysophosphatidylcholines. It is reported that APOA1 (Apolipoprotein A-I) acts as a cofactor for the LCAT. Thus, a binding ELISA assay was conducted to detect the association of LCAT with APOA1. Briefly, recombinant rat LCAT were diluted serially in PBS with 0.01% BSA (pH 7.4). Duplicate samples of 100uL were then transferred to APOA1-coated microtiter wells and incubated for 2h at 37°C. Wells were washed with PBST and incubated for 1h with anti-LCAT pAb, then aspirated and washed 3 times. After incubation with HRP labelled secondary antibody, wells were aspirated and washed 3 times. With the addition of substrate solution, wells were incubated 15-25 minutes at 37°C. Finally, add 50µL stop solution to the wells and read at 450nm immediately. The binding activity of LCAT with APOA1 was shown in Figure 1 and this effect was in a dose dependent manner.

USAGE

Reconstitute in 20mM Tris, 150mM NaCl (pH8.0) to a concentration of 0.1-1.0 mg/mL. Do not vortex.

STORAGE

Avoid repeated freeze/thaw cycles. Store at 2-8°C for one month. Aliquot and store at -80°C for 12 months.

STABILITY

The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37°C for 48h, and no obvious degradation and precipitation were observed. The loss rate is less than 5% within the expiration date under appropriate storage condition.

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Magazine Citations
Int J Rheum Dis Plasma phospholipase, γ‐CEHC and antioxidant capacity in fibromyalgia PubMed: 26585319
Inflammation. Alteration of Lysophosphatidylcholine-Related Metabolic Parameters in the Plasma of Mice withExperimental Sepsis. pubmed:28028754
British journal of cancer A combined biomarker panel shows improved sensitivity for the early detection of ovarian cancer allowing the identification of the most aggressive type II tumours. pubmed:28664912
Journal of Agricultural and Food Chemistry Lipid-lowering effects of medium-chain triglyceride-enriched coconut oil in combination with licorice extracts in experimental hyperlipidemic mice Pubmed: 30244576
Experimental and Therapeutic Medicine Identification and validation of differentially expressed proteins in serum of CSU patients with different duration of wheals using an iTRAQ labeling, 2D‑LC‑MS/MS Doi: 10.3892/etm.2018.6818
British Journal of Cancer Diagnosis of epithelial ovarian cancer using a combined protein biomarker panel. Pubmed: 31388184
BIOMEDICINE & PHARMACOTHERAPY The synergistic mechanism of total saponins and flavonoids in Notoginseng− Safflower pair against myocardial ischemia uncovered by an integrated … Pubmed: 32739736
Biomedicine & Pharmacotherapy Pharmacokinetics/pharmacometabolomics-pharmacodynamics reveals the synergistic mechanism of a multicomponent herbal formula, Baoyuan decoction?¡­
Cell Metab Defects in a liver-bone axis contribute to hepatic osteodystrophy disease progression Pubmed:35235775
Catalog No. Related products for research use of Mus musculus (Mouse) Organism species Applications (RESEARCH USE ONLY!)
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