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In vitro transcription of capped mRNA with modified nucleotides and Poly(A) tail
TSA (Tyramide Signal Amplification), used for signal amplification of ISH, IHC and IC etc.
Separation of phosphorylated and non-phosphorylated proteins without phospho-specific antibody
A convenient and sensitive way for cell proliferation assay and cytotoxicity assay
Protect the integrity of proteins from multiple proteases and phosphatases for different applications.
Apoptosis is one of the biological processes that activation of calpain is implicated in. Cell membrane and Ca2+ is required for calpainactivation. The activated calpain is entered into cytosol. The Calpain Activity Assay Kit is a convenient way of measuring calpain activity with optimized buffers and reagents. The Extraction Buffer extracts cytosolic proteins with contaminations from cell membrane and lysosome proteases. It also protects the cell from atuo-activation of calpain during extraction process. Thus, the kit only detects activated calpain in cytosol following treatment of cells with chemicals or drugs inducers. The fluorometric assay is based on the detection of cleavage of calpain substrate Ac-LLY-AFC. Ac-LLY-AFC emits blue light (λmax = 400 nm); upon cleavage of the substrate by calpain, free AFC emits a yellow-green fluorescence (λmax = 505 nm), which can be quantified using a fluorometer or a fluorescence.
