Anti-Plunc/BPIFA1 Antibody Picoband® Fluoro488 Conjugated

Palate, lung, and nasal epithelium clone protein[5] (PLUNC) is a gene encoding a secretory protein. This gene is the human homolog of murine plunc, and like the mouse gene, is specifically expressed in the upper airways and nasopharyngeal regions. The encoded antimicrobial protein displays antibacterial activity against Gram-negative bacteria. It is thought to be involved in inflammatory responses to irritants in the upper airways and may also serve as a potential molecular marker for detection of micrometastasis in non-small-cell lung cancer. Multiple transcript variants resulting from alternative splicing in the 3' UTR have been detected, but the full-length nature of only three are known.

Wide tissue distribution (highest in the pancreas and very low in brain) . Closely associated with the basal layer of cells in epithelia and the endothelium of blood vessel walls.

Constitutively active protein kinase that acts as a negative regulator in the hormonal control of glucose homeostasis, Wnt signaling and regulation of transcription factors and microtubules, by phosphorylating and inactivating glycogen synthase (GYS1 or GYS2), CTNNB1/beta-catenin, APC and AXIN1. Requires primed phosphorylation of the majority of its substrates. Contributes to insulin regulation of glycogen synthesis by phosphorylating and inhibiting GYS1 activity and hence glycogen synthesis. Regulates glycogen metabolism in liver, but not in muscle. May also mediate the development of insulin resistance by regulating activation of transcription factors. In Wnt signaling, regulates the level and transcriptional activity of nuclear CTNNB1/beta-catenin. Facilitates amyloid precursor protein (APP) processing and the generation of APP-derived amyloid plaques found in Alzheimer disease. May be involved in the regulation of replication in pancreatic beta-cells. Is necessary for the establishment of neuronal polarity and axon outgrowth. Through phosphorylation of the anti-apoptotic protein MCL1, may control cell apoptosis in response to growth factors deprivation. Acts as a regulator of autophagy by mediating phosphorylation of KAT5/TIP60 under starvation conditions, leading to activate KAT5/TIP60 acetyltransferase activity and promote acetylation of key autophagy regulators, such as ULK1 and RUBCNL/Pacer.

1. Bingle, C. D., Bingle, L. Characterisation of the human plunc gene, a gene product with an upper airways and nasopharyngeal restricted expression pattern. Biochim. Biophys. Acta 1493: 363-367, 2000. 2. Bingle, C. D., Craven, C. J. PLUNC: A novel family of candidate host defence proteins expressed in the upper airways and nasopharynx. Hum. Molec. Genet. 11: 937-943, 2002. 3. Chu, H. W., Thaikoottathil, J., Rino, J. G., Zhang, G., Wu, Q., Moss, T., Refaeli, Y., Bowler, R., Wenzel, S. E., Chen, Z., Zdunek, J., Breed, R., Young, R., Allaire, E., Martin, R. J. Function and regulation of SPLUNC1 protein in mycoplasma infection and allergic inflammation. J. Immun. 179: 3995-4002, 2007.