EC 2.5.1.43     
Accepted name: nicotianamine synthase
Reaction: 3 S-adenosyl-L-methionine = 3 S-methyl-5′-thioadenosine + nicotianamine
Systematic name: S-adenosyl-L-methionine:S-adenosyl-L-methionine:S-adenosyl-L-methionine 3-amino-3-carboxypropyltransferase
References:
1.  Higuchi, K., Kanazawa, K., Nishizawa, N.-K., Chino, M., Mori, S. Purification and characterization of nicotianamine synthase from Fe-deficient barley root. Plant Soil 165 (1994) 173–179.
[EC 2.5.1.43 created 1999]