Ras Pathway. Ras is a membrane-associated guanine nucleotide-binding protein that is normally activated in response to the binding of extracellular signals, such as growth factors, RTKs (Receptor Tyrosine Kinases), TCR (T-Cell Receptors) and PMA (Phorbol-12 Myristate-13 Acetate).
Sicily Description. Sicily is Italy's largest island and the largest island in theMediterranean Sea. It's also a geographical and political region of Italy, famed for its beautiful beaches, cuisine, and fascinating history.
Italy is located at a meeting point of African and Eurasian plate, in fact, island of Sicily is located northeast of Tunisia in Africa. Italy covers a total area of 301,340 sq. km. and is the seventy second largest country of the world. Italy is situated between 42Â° 50' N latitudes and 12Â° 50' E longitudes. Italyâs capital city Rome has been the home of Roman Empire and Christianity in the past.