Phosphorylation of signal transduction molecules is a major activating event that leads to dramatic changes in tumor growth. Some TKs, such as epidermal growth factor receptor (EGFR)-TK, can autophosphorylate when activated, as well as phosphorylating other signaling molecules [2].
Risk indexes Definition: Categories of risk used to calculate fundamental beta, including (1) market variability, (2) earnings variability, (3) low valuation, (4) immaturity and smallness, (5) growth orientation, and (6) financial risk.
CBOE Volatility Index. A mathematical measure of the implied volatility of options trading on the S&P 500 index. That is, the CBOE Volatility Index attempts to measure the likelihood of option prices to vary unpredictably in the context of a particular pricing model in this case, the Black-Scholes model. A higher number on the index represents greater volatility, while a lower number represents lower volatility.