Anti-PFKFB4 Antibody Picoband® Fluoro550 Conjugated

6-phosphofructo-2-kinase/fructose-2, 6-biphosphatase 4 also known as PFKFB4 is an enzyme which in humans is encoded by the PFKFB4 gene. The protein encoded by this gene is one of four bifunctional kinase/phosphatases that regulate the concentration of the glycolytic byproduct fructose-2, 6-bisphosphate (F2, 6BP) . The encoded protein is highly expressed in cancer cells and is induced by hypoxia. This protein is essential to the survival of cancer cells under conditions of hypoxia, because it increases the amount of F2, 6BP and ATP at a time when the cell cannot produce much of them. This finding suggests that this protein may be a good target for disruption in cancer cells, hopefully imperiling their survival. Several transcript variants encoding different isoforms have been found for this gene.

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E.coli-derived human PFKFB4 recombinant protein (Position: M1-K298) . Human PFKFB4 shares 97.3% and 97% amino acid (aa) sequence identity with mouse and rat PFKFB4, respectively.

Downstream effector of TOR signaling pathway involved in osmotic stress response. Could be involved in the control of plant growth and development. Phosphorylates the ribosomal proteins P14, P16 and S6. Functions as a repressor of cell proliferation and required for maintenance of chromosome stability and ploidy levels through the RBR1-E2F pathway.

1. Dasgupta, S., Rajapakshe, K., Zhu, B., Nikolai, B. C., Yi, P., Putluri, N., Choi, J. M., Jung, S. Y., Coarfa, C., Westbrook, T. F., Zhang, X. H.-F., Foulds, C. E., Tsai, S. Y., Tsai, M.-J., O'Malley, B. W. Metabolic enzyme PFKFB4 activates transcriptional coactivator SRC-3 to drive breast cancer. Nature 556: 249-254, 2018. 2. Manzano, A., Perez, J. X., Nadal, M., Estivill, X., Lange, A., Bartrons, R. Cloning, expression and chromosomal localization of a human testis 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase gene. Gene 229: 83-89, 1999. 3. Sakai, A., Kato, M., Fukasawa, M., Ishiguro, M., Furuya, E., Sakakibara, R. Cloning of cDNA encoding for a novel isozyme of fructose 6-phosphate,2-kinase/fructose 2,6-bisphosphatase from human placenta. J. Biochem. 119: 506-511, 1996.