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.
Electricians reported wide variances in average pay from state to state. According to the BLS, electricians in Alaska had the highest average salary, $72,030 per year as of May 2011.Those in New York averaged $70,680 per year, and those working in Illinois earned an average of $70,430 per year, still almost $20,000 above the national average.ay by Industry. Electricians working as building equipment contractors made up the bulk of those employed, and they reported an average salary of $52,600 per year. Those working in non-residential building construction had a comparable average, $52,910 per year.