As an essential amino acid, leucine cannot be synthesized by animals. Consequently, it must be ingested, usually as a component of proteins. In plants and microorganisms, leucine is synthesised from pyruvic acid by a series of enzymes:
Electricians in California earned an average of $27.33 per hour and $56,840 per year as of May 2009, according to the U.S. Bureau of Labor Statistics. Average annual salaries in California were more than 11 percent above the U.S. national average of $50,850.
In 2013, the median wage for an electrician was $50,510. The highest-paid earned north of $80,000, while the lowest-paid electricians earned around $30,000 that year. An apprentice usually makes between 30 percent and 50 percent less than someone who is fully trained.est Paying Cities for Electricians. The highest paid in the electrician profession work in the metropolitan areas of Rockford, Illinois, San Francisco, and Fairbanks, Arkansas. The Oakland, California area also pays well, as does the city of New York City.