Publications by authors named "Keerthi B Jayasundera"

Article Synopsis
  • Natural products, particularly isoprenoids, are used in various industries such as medicine, cosmetics, and biofuels, leading to a growing interest in microbial production methods.
  • Advances in metabolic engineering through synthetic and systems biology have facilitated the modification of microorganisms to enhance isoprenoid yield by targeting biosynthetic pathways like the MEP and MVA.
  • New combinations of the MVA pathway have shown improved carotenoid and lycopene production, making them promising for efficient industrial isoprenoid production while complying with safety regulations.
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Engagement of the B cell receptor for antigen (BCR) leads to immune responses through a cascade of intracellular signaling events. Most studies to date have focused on the BCR and protein tyrosine phosphorylation. Because spleen tyrosine kinase, Syk, is an upstream kinase in multiple BCR-regulated signaling pathways, it also affects many downstream events that are modulated through the phosphorylation of proteins on serine and threonine residues.

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The Syk protein-tyrosine kinase can have multiple effects on cancer cells, acting in some as a tumor suppressor by inhibiting motility and in others as a tumor promoter by enhancing survival. Phosphoproteomic analyses identified PKA as a Syk-specific substrate. Syk catalyzes the phosphorylation of the catalytic subunit of PKA (PKAc) both in vitro and in cells on Tyr-330.

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