ID 4.4.1.11 DE methionine gamma-lyase. AN L-methioninase. AN methionine lyase. CA L-methionine + H2O = methanethiol + 2-oxobutanoate + NH4(+). CC -!- The enzyme cleaves a carbon-sulfur bond, releasing methanethiol and CC an unstable enamine product that tautomerizes to an imine form, which CC undergoes a hydrolytic deamination to form 2-oxobutanoate and CC ammonia. CC -!- The latter reaction, which can occur spontaneously, can also be CC catalyzed by EC 3.5.99.10. CC -!- The enzyme is involved in L-methionine catabolism. DR A0A2H1K3G9, MEGL_BREAU ; A0A1H1YBL2, MEGL_BRESA ; Q8RDT4, MEGL_FUSNN ; DR Q8L0X4, MEGL_FUSNP ; Q7MX71, MEGL_PORGI ; A0A0J6G7P5, MEGL_PSEDM ; DR P13254, MEGL_PSEPU ; Q826W3, MEGL_STRAW ; Q73KL7, MEGL_TREDE ; DR Q9SGU9, MGL_ARATH ; //