ID 4.1.99.2 DE tyrosine phenol-lyase. AN beta-tyrosinase. CA H2O + L-tyrosine = NH4(+) + phenol + pyruvate. CC -!- The enzyme cleaves a carbon-carbon bond, releasing phenol and an CC unstable enamine product that tautomerizes to an imine form, which CC undergoes a hydrolytic deamination to form pyruvate and ammonia. CC -!- The latter reaction, which can occur spontaneously, can also be CC catalyzed by EC 3.5.99.10. CC -!- The enzyme also slowly catalyzes similar reactions with D-tyrosine, CC S-methyl-L-cysteine, L-cysteine, L-serine and D-serine. DR P31013, TPL_CITFR ; P31012, TPL_CITIN ; Q897C2, TPL_CLOTE ; DR P31011, TPL_ENTAG ; Q8RHM6, TPL_FUSNN ; E6SFG5, TPL_INTC7 ; DR D9R201, TPL_LACSW ; B2J908, TPL_NOSP7 ; Q9CMK9, TPL_PASMU ; DR O08501, TPL_SYMS1 ; Q08897, TPL_SYMTH ; //