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EC 4.2.1.3 Details
EC number
4.2.1.3
Accepted name
aconitate hydratase
Reaction
citrate = isocitrate (overall reaction);;(1a) citrate = cis-aconitate + H2O;;(1b) cis-aconitate + H2O = isocitrate
Other name(s)
cis-aconitase, aconitase, AcnB, 2-methylaconitate hydratase, citrate(isocitrate) hydro-lyase
Systematic name
citrate(isocitrate) hydro-lyase (cis-aconitate-forming)
CAS registry number
9024-25-3
Comment
Besides interconverting citrate and cis-aconitate, it also interconverts cis-aconitate with isocitrate and, hence, interconverts citrate and isocitrate. The equilibrium mixture is 91% citrate, 6% isocitrate and 3% aconitate. cis-Aconitate is used to designate the isomer (Z)-prop-1-ene-1,2,3-tricarboxylate. An iron-sulfur protein, containing a [4Fe-4S] cluster to which the substrate binds.
History
created 1961, modified 2003
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