the amino acid composition and amino-terminal sequence have been determined for the alanine-rich , acidic ribosomal ' a ' protein ( equivalent to escherichia coli l7/l12 ) from three procaryotic cell types that live under extreme environmental conditions ( arthrobacter glacialis , clostridium pasteurianum , and bacillus stearothermophilus ) as well as from wheat germ , a eucaryote source .
C0002520
amino acid
C0001898
alanine