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EC 4.2.1.166 Details
EC number
4.2.1.166
Accepted name
phosphinomethylmalate isomerase
Reaction
2-(hydroxyphosphonoylmethyl)malate = 3-(hydroxyphosphonoylmethyl)malate (overall reaction);;(1a) 2-(hydroxyphosphonoylmethyl)malate = 2-(phosphinatomethylidene)butanedioate + H2O;;(1b) 2-(phosphinatomethylidene)butanedioate + H2O = 3-(hydroxyphosphonoylmethyl)malate
Other name(s)
pmi (gene name)
Systematic name
2-(phosphinomethyl)malate hydro-lyase [3-(phosphinomethyl)malate-forming]
Comment
The enzyme, characterized from the bacterium Streptomyces viridochromogenes, is involved in bialaphos biosynthesis. The enzyme from the bacterium Kitasatospora phosalacinea participates in the biosynthesis of the related compound phosalacine. Both compounds contain the nonproteinogenic amino acid L-phosphinothricin that acts as a potent inhibitor of EC 6.3.1.2, glutamine synthetase. The similar enzyme EC 4.2.1.3, aconitate hydratase, cannot catalyse this reaction.
History
created 2016
EC Tree
4.2.1.13 created 1961, deleted 2001
4.2.1.14 created 1961, deleted 2001
4.2.1.15 created 1961, deleted 1972
4.2.1.16 created 1961, deleted 2001
4.2.1.21 created 1961, deleted 1964
4.2.1.23 created 1961, deleted 1972
4.2.1.26 created 1965, deleted 2002
4.2.1.29 created 1965, deleted 2004
4.2.1.37 created 1972, deleted 1992
4.2.1.38 created 1972, deleted 2001
4.2.1.63 created 1972, deleted 1978
4.2.1.64 created 1972, deleted 1978
4.2.1.71 created 1978, modified 1989, modified 2000, deleted 2004
4.2.1.72 created 1978, deleted 2000
4.2.1.86 created 1989, deleted 2004
4.2.1.102 created 2001, deleted 2001