Kangas joined Nightly Business Report in 1979; in 2003, his Stocks in the News segment earned a Financial Writers and Editors Award from the Medill School of Journalism at Northwestern University. In 2005, he won a Suncoast Chapter Silver Circle Award.
What Is a Malpighian Tubule? Malpighian tubules are organs within insects that excrete solid waste. Larvae of certain species of beetles use Malpighian tubules to produce silk.
They are composed of Î±-tubulin and a similar protein called beta-tubulin (Î²-tubulin) that is produced from a different gene. Microtubules are necessary for cell division and movement. Most cells produce Î±-tubulin, but the protein is found in highest amounts in the developing brain.During brain development, Î±-tubulin partners with Î²-tubulin to form microtubules that move nerve cells (neurons) to their proper location (neuronal migration).he TUBA1A gene provides instructions for making a protein called alpha-tubulin (Î±-tubulin). This protein is part of the tubulin family of proteins that form and organize structures called microtubules. Microtubules are rigid, hollow fibers that make up the cell's structural framework (the cytoskeleton).