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.
Alaska ranked first in average annual salaries for electricians, at $72,030, followed by New York at $70,680, Illinois at $70,430, Hawaii at $68,430 and New Jersey at $67,630. Nevada, Oregon and California were also high-paying states for electricians.hese workers earned an average of $79,250 a year. Most electricians worked as building equipment contractors, earning an average annual income of $52,600. Electricians employed by local governments tended to earn slightly above the national average for this occupation and made an average annual income of $57,580.