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.
Sicily's temperature is moderated by the warm Mediterranean sea and its location in proximity to the equators. Sea temperatures around Sicily range from around 60 degrees Fahrenheit in the winter to approximately 80 degrees in the summer. The coastal regions of Sicily have pleasant spring daytime highs from March through May that begin around 60 degrees and warm to the mid-80s in May.