December Birthstone Most people think of a bright sky blue when they hear Zircon, but it is also available in beautiful earth tones of green, dark red, yellow, brown, and orange. Today, the most popular colors of Zircon are the vivid blue and bright Caribbean Sea colors.
IFNs belong to the large class of proteins known as cytokines, molecules used for communication between cells to trigger the protective defenses of the immune system that help eradicate pathogens. Interferons are named for their ability to interfere with viral replication by protecting cells from virus infections.
Biochemistry. any of various proteins, produced by virus-infected cells, that inhibit reproduction of the invading virus and induce resistance to further infection. Pharmacology.. Also called alpha-interferon. an interferon produced by genetically engineered bacteria and harvested for use against hairy cell leukemia.