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EC 2.5.1.104 Details
EC number
2.5.1.104
Accepted name
N1-aminopropylagmatine synthase
Reaction
S-adenosyl 3-(methylsulfanyl)propylamine + agmatine = S-methyl-5′-thioadenosine + N1-(3-aminopropyl)agmatine
Other name(s)
agmatine/cadaverine aminopropyl transferase, ACAPT, PF0127 (gene name), triamine/agmatine aminopropyltransferase, SpeE (ambiguous), agmatine aminopropyltransferase, S-adenosyl 3-(methylthio)propylamine:agmatine 3-aminopropyltransferase
Systematic name
S-adenosyl 3-(methylsulfanyl)propylamine:agmatine 3-aminopropyltransferase
Comment
The enzyme is involved in the biosynthesis of spermidine from agmatine in some archaea and bacteria. The enzyme from the Gram-negative bacterium Thermus thermophilus accepts agmatine, spermidine and norspermidine with similar catalytic efficiency. The enzymes from the archaea Pyrococcus furiosus and Thermococcus kodakarensis prefer agmatine, but can utilize cadaverine, putrescine and propane-1,3-diamine with much lower catalytic efficiency. cf. EC 2.5.1.16, spermidine synthase, and EC 2.5.1.23, sym-norspermidine synthase.
History
created 2013
EC Tree
2.5.1.12 created 1972, deleted 1976
2.5.1.13 created 1972, deleted 1976
2.5.1.14 created 1972, deleted 1976
2.5.1.37 created 1989, deleted 2004
2.5.1.40 created 1992, deleted 1999