Akt Signaling. Akt (v-Akt Murine Thymoma Viral Oncogene)/ PKB (Protein Kinase-B) is a Serine/threonine Kinase that is involved in mediating various biological responses, such as inhibition of Apoptosis and stimulation of cell proliferation. Three mammalian isoforms are currently known: Akt1/PKB- Alpha, Akt2/PKB-Beta and Akt3/PKB-Gamma.
Vascular: Relating to blood vessels. For example, the vascular system in the body includes all of the veins and arteries. And, a vascular surgeon is an expert at evaluating and treating problems of the veins and arteries.
vascular system-the vessels and tissue that carry or circulate fluids such as blood or lymph or sap through the body of an animal or plant. nonflowering plant, pteridophyte-plants having vascular tissue and reproducing by spores.phanerogam, seed plant, spermatophyte-plant that reproduces by means of seeds not spores.ny of numerous plants, including the seed plants and the ferns, having well-developed vascular tissues consisting of phloem to transport sucrose and other organic nutrients and xylem to transport water and minerals.