6.3.1.6 ATP + L-glutamate + ethylamine - Camellia sinensis ADP + phosphate + N5-ethyl-L-glutamine - ? 378 6.3.1.6 ATP + L-glutamate + ethylamine - Camellia sinensis ADP + phosphate + N5-ethyl-L-glutamine i.e. theanine ? 378