2.5.1.51 beta-pyrazolylalanine synthase; beta-(1-pyrazolyl)alanine synthase; beta-pyrazolealanine synthase; beta-pyrazolylalanine synthase (acetylserine); O3-acetyl-L-serine acetate-lyase (adding pyrazole); BPA-synthase; pyrazolealanine synthase; pyrazolylal • • •