Dystrophin is a rod-shaped cytoplasmic protein, and a vital part of a protein complex that connects the cytoskeleton of a muscle fiber to the surrounding extracellular matrix through the cell membrane. This complex is variously known as the costamere or the dystrophin-associated protein complex.he dystrophin gene is one of the longest human genes known, covering 2.5 megabases (0.08% of the human genome) at locus Xp21.
Bethesda is a census-designated place in southern Montgomery County, Maryland, just northwest of the United States capital of Washington, D.C. It takes its name from a local church, the Bethesda Meeting House (1820, rebuilt 1849), which in turn took its name from Jerusalem 's Pool of Bethesda.
As an unincorporated area, Bethesda has no official boundaries. The United States Census Bureau defines a census-designated place named Bethesda whose center is located at 38Â°59â²N 77Â°7â²Wï»¿ / ï»¿38.983Â°N 77.117Â°Wï»¿ / 38.983; -77.117.