Transaminase genes derived from Streptomyces hydroscopicus, transaminases encoded by the transminase genes, plasmids having the transaminase genes inserted therein, actinomycetes trasformed with the plasmids and a method of producing L-phosphinothricin by amination of (3-carboxy-3-oxo-propyl)methylphosphinate using the transformants which enables enhanced productivity of L-phosphinothricin.
