Alanine

Alanine is a hydrophobic amino acid often abbreviated to Ala or A. It is a non-polar amino acid. It has a side chain of  -CH₃ making it the second simplest amino acid and it's RNA codons are GCA, GCC, GCG and GCU.

See single letter amino acid codes

References

1. Berg J., Tymoczko J. and Stryer L (2012) Biochemistry, seventh edition, Basinstoke: W.H.Freeman and Company.