Description
BAPTA free acid (85233-19-8) is a selective extracellular Ca2+ chelator. It is a widely used calcium sponge for chelating Ca2+?outside of intact cells.1 It’s a useful tool to probe the involvement of extracellular Ca2+ in cellular signaling.2,3 Non-cell-permeable.
Chemical Properties
White Solid
Uses
As calcium chelator; 19F labelled forms for measurement of intracellular calcium.
Uses
BAPTA is a highly selective calcium chelating reagent. Lipophilic diesters of the chelating agent 1,2-Bis(2 aminophenoxy)ethane-N,N,N',N'-tetraacetic acid (BAPTA) are used for inhibition of proteolytic activities of certain metalloproteinases, calpain and TACE.
Uses
Highly selective calcium chelating reagent. Suitable for the spectrophotometric monitoring of Ca2+ levels.
Definition
ChEBI: A polyamino carboxylic acid in which bis(carboxymethyl)nitrilo groups are bonded to C-2 and C-2' of 1,1'-[ethane-1,2-diylbis(oxy)]dibenzene.
General Description
In nature 1,2-Bis(2-Aminophenoxy)ethane-N,N,N′,N′-tetra acetic acid (BAPTA) is a main metabolic product of BAPTA -AM (BAPTA-tetra(actoxymethyl ester), a neuro protective agent in cerebral ischemia, in rats.BAPTA is an intercellular Ca2+ chelator.
Biological Activity
Selective calcium chelator.
References
1) Munoz et al. (2015), Different Stress-Induced Calcium Signatures Are Reported by Aequorin-Mediated Calcium Measurements in Living Cells of Aspergillus fumigatus; PLoS One, 10(9) e0138008
2) Wozniak et al. (2017), Extracellular Ca2+ is Required for Fertilization in the African Clawed Frog, Xenopus laevis; PLoS One, 12(1) e0170405
3) Didiasova et al. (2015), STIM1/ORAI1-mediated Ca2+ Influx Regulates Enolase-1 Exteriorization; J. Biol. Chem., 290 11983
