The enzyme protein phosphatase methylesterase-1 (EC 3.1.1.89, PME-1, PPME1 ; systematic name (phosphatase 2A protein)-leucine ester acylhydrolase [ 1] [ 2] catalyses the reaction
[phosphatase 2A protein]-leucine methyl ester + H2 O
⇌
{\displaystyle \rightleftharpoons }
[phosphatase 2A protein]-leucine + methanol
A key regulator of protein phosphatase 2A.
^ Ogris E, Du X, Nelson KC, Mak EK, Yu XX, Lane WS, Pallas DC (May 1999). "A protein phosphatase methylesterase (PME-1) is one of several novel proteins stably associating with two inactive mutants of protein phosphatase 2A" . The Journal of Biological Chemistry . 274 (20): 14382–91. doi :10.1074/jbc.274.20.14382 . PMC 3503312 . PMID 10318862 .
^ Xing Y, Li Z, Chen Y, Stock JB, Jeffrey PD, Shi Y (April 2008). "Structural mechanism of demethylation and inactivation of protein phosphatase 2A" . Cell . 133 (1): 154–63. doi :10.1016/j.cell.2008.02.041 . PMID 18394995 .