Amino-PEG4-(CH2)3CO2H is a PEG-based linker for PROTACs which joins two essential ligands, crucial for forming PROTAC molecules. This linker enables selective protein degradation by leveraging the ubiquitin-proteasome system within cells.
Boc-Aminooxy-PEG4-CH2CO2H is a polyethylene glycol (PEG) derivative serving as a PROTAC linker for the synthesis of proteolysis targeting chimeras (PROTACs)[1].
Propargyl-PEG4-CH2CO2-NHS is a PEG derivative containing a propargyl group and an NHS group. The hydrophilic PEG spacer increases solubility in aqueous media.
α-Galactosylceramide analog 8 (α-GalCer analog 8) is a triazole derivative of α-galactosylceramide. [1] It increases IL-2 secretion by DN32.D3 NKT hybridoma cells when co-cultured with CD1d-transfected RBL cells pre-loaded with α-GalCer analog 8 at a concentration of 32 ng ml. α-GalCer analog 8 (32 ng ml) induces IL-4 secretion to a greater extent than the synthetic α-GalCer KRN 7000 in mouse splenocytes in vitro and in mouse serum following administration of a 1 µg per animal dose, indicating a Th2 response.
BODIPY-aminoacetaldehyde diethyl acetal (BAAA-DA) is a stable precursor to BODIPY-aminoacetaldehyde, a cell-permeable fluorescent substrate for aldehyde dehydrogenase (ALDH).1,2BODIPY-aminoacetaldehyde diethyl acetal is converted under acidic conditions to BODIPY-aminoacetaldehyde (BAAA).2BAAA is cell-permeant and is converted intracellularly by ALDH to BODIPY aminoacetate (BAA), which is retained by cells and can be used to identify cells with high ALDH activity.1BAA is a substrate for the efflux pump P-glycoprotein (P-gp) but co-application of BAAA with a P-gp inhibitor, such as verapamil , inhibits BAA efflux.2BAAA-DA has been used to isolate human hematopoietic progenitor cells, which have high ALDH activity, andviaflow cytometry to sort cancer stem cells that contain high levels of ALDH.1,3BAA used in cells can be excited at 488 nm and displays an emission maximum of 512 nm.4 1.Storms, R.W., Trujillo, A.P., Springer, J.B., et al.Isolation of primitive human hematopoietic progenitors on the basis of aldehyde dehydrogenase activityProceedings of the National Academy of Sciences of the United States of America96(16)9118-9123(1999) 2.Smith, C.A., Colvin, M., Storms, R.W., et al.BODIPY aminoacetaldehyde diethyl acetal08010501.81-15(2010) 3.Leng, Z., Yang, Z., Li, L., et al.A reliable method for the sorting and identification of ALDHhigh cancer stem cells by flow cytometryExp. Ther. Med.(2017) 4.Pomper, M.G., Wang, H., Minn, I., et al.Red fluorescent aldehyde dehydrogenase (ALDH) substrate(2015)