Three letter code: Ala
One letter code: A
It is a non-polar amino acid. It has a side chain of -CH3 making it the second simplest amino acid (Gylcine is the simplest amino acid with a single hydrogen atom as its side chain.) It has four codons: GCA, GCC, GCG and GCU.
Berg, J. M., Tymoczko, J. L., & Stryer, L. (2002). Biochemistry (5th ed.). New York: W.H. Freeman.
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