Phosphoglucose Isomerase (PGI, GPI, or AMF) Assay Kit Price
Product Description: Phosphoglucose isomerase (PGI), or glucose-6-phosphate isomerase (GPI), mediates the interconversion between
glucose-6-phosphate (G6P) and fructose-6-phosphate (F6P) in glycolysis and gluconeogenesis. Since the enzymatic step is reversible, the direction
of the reaction is determined in part by G6P and F6P concentrations. In addition to its role in glucose metabolism, PGI also functions extracellularly.
PGI secreted by cancer cells is known as autocrine motility factor (AMF), which through AMF receptor promotes cancer metastasis. PGI has also
been described as a neurotrophic factor and maturation factor in its diverse extracellular function. Clinically, PGI deficiency can lead to hemolytic
anemia due to impaired glycolysis in red blood cells, and elevated serum levels of PGI can be a prognostic biomarker for several types of cancers.
The PGI activity assay kit is based on the measurement of G6P formed from F6P, and the measurement is coupled to the reduction of the
tetrazolium salt INT in a NADPH-coupled enzymatic reaction. Since the INT reaction product exhibits an absorption maximum at 492 nm, the intensity
of the red color formed is increased in response to increased PGI activity. The PGI Assay Solution should be stored at -80ºC, and will remain stable
for many years at -80ºC..
PGI Assay Solution: 5 ml, store at -80°C
10x PGI Substrate: 0.5 ml, store at -80ºC
10x Cell Lysis Solution: 25 ml, store at 4ºC
MSDS: TX-100, INT, Hepes, DMSO
Related kits: HK/GK Enzyme Assay, GAPDH Enzyme Assay, LDH Enzyme Assay
Glucose Assay, D-Lactate Assay, PDH Enzyme Assay, G6PD Enzyme Assay
Pyruvate Assay, L-Lactate Assay
Zhu et al
Upregulation of non-canonical Wnt ligands and oxidative glucose metabolism in NASH induced by methionine-choline deficient diet.
Trends in Cell and Molecular Biology 13:47-56, 2018
Lin et al
Secreted phosphoglucose isomerase is a novel biomarker of nonalcoholic fatty liver in mice and humans
BBRC 529:1101, 2020
Biomedical Research Service
& Clinical Application
Mice were fed methionine-choline deficient diet
(MCDD) for 6 weeks. Serum (left) and liver (right) PGI
enzyme activities were assayed by the PGI Assay kit.
The results show that PGI enzyme can be a blood
marker for non-alcoholic steatohepatitis (NASH).