Description_x000D_ Packaging_x000D_ 100, 500 mg in poly bottle_x000D_ 50 mg in glass bottle_x000D_ Biochem/physiol Actions_x000D_ β-Glutamic acid (β-Glu) is used as an osmolyte in many archaea. β-Glutamic acid may be used as a substrate to study the specificity and kinetics of archaeal and bacterial glutamine synthetase (GS) enzymes. β-Glutamic acid is used to study primitive mechanisms of polypeptide formation.