Alpha-tubulin (b-alpha-1) mRNA is expressed at a molecular weight of about 50-55,000D. The 3-prime UTR of the protein is more than 80% homologous to the UTR of the rat brain alpha-tubulin gene IL-alpha-T1. Alpha tubulin is a predicted 451-amino acid protein that is 100% identical to the rat homolog and differs by only 2 and 3 amino acids from the pig and chicken homologs, respectively.
