ARPP19, cAMP-regulated phosphoprotein 19, is specifically phosphorylated at Ser-62 during mitosis by MASTL, also known as the Greatwall kinase. The phos-phorylation of ARPP19 leads to inactivation of PP2A through its interaction with PR55-delta, which is essential in maintaining the activity of CDK1/cyclin B1 and promoting mitotic G2/M transition (1). Significant reduction of ARPP-19 was observed in brains of Alzheimer's disease and Down syndrome (2). ARPP-19 was also found to contribute to tumor growth in hepatocellular carcinoma and papillary carcinoma (3).
2. Kim, S. H., et al. Decreased levels of ARPP-19 and PKA in brains of Down syndrome and Alzheimer's disease. J Neural Transm Suppl. 61: 263-272, 2001.
3. Song, H., et al. Increased ARPP-19 expression is associated with hepatocellular carcinoma. Int J Mol Sci. 16(1): 178-192, 2014.
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The ARPP19 (Catalog #AAA516576) is a Recombinant Protein produced from E Coli and is intended for research purposes only. The product is available for immediate purchase. AAA Biotech's ARPP19 can be used in a range of immunoassay formats including, but not limited to, Western Blot (WB). Researchers should empirically determine the suitability of the ARPP19 for an application not listed in the data sheet. Researchers commonly develop new applications and it is an integral, important part of the investigative research process. It is sometimes possible for the material contained within the vial of "ARPP19, Recombinant Protein" to become dispersed throughout the inside of the vial, particularly around the seal of said vial, during shipment and storage. We always suggest centrifuging these vials to consolidate all of the liquid away from the lid and to the bottom of the vial prior to opening. Please be advised that certain products may require dry ice for shipping and that, if this is the case, an additional dry ice fee may also be required.Precautions
All products in the AAA Biotech catalog are strictly for research-use only, and are absolutely not suitable for use in any sort of medical, therapeutic, prophylactic, in-vivo, or diagnostic capacity. By purchasing a product from AAA Biotech, you are explicitly certifying that said products will be properly tested and used in line with industry standard. AAA Biotech and its authorized distribution partners reserve the right to refuse to fulfill any order if we have any indication that a purchaser may be intending to use a product outside of our accepted criteria.Disclaimer
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