EC 2.5.1.140     
Accepted name: N-(2-amino-2-carboxyethyl)-L-glutamate synthase
Reaction: O-phospho-L-serine + L-glutamate = N-[(2S)-2-amino-2-carboxyethyl]-L-glutamate + phosphate
Other name(s): SbnA; ACEGA synthase
Systematic name: O-phospho-L-serine:L-glutamate N-(2S)-2-amino-2-carboxyethyltransferase
Comments: The enzyme, characterized from the bacterium Staphylococcus aureus, is involved in the biosynthesis of the siderophore staphyloferrin B.
References:
1.  Beasley, F.C., Cheung, J. and Heinrichs, D.E. Mutation of L-2,3-diaminopropionic acid synthase genes blocks staphyloferrin B synthesis in Staphylococcus aureus. BMC Microbiol. 11:199 (2011). [PMID: 21906287]
2.  Kobylarz, M.J., Grigg, J.C., Takayama, S.J., Rai, D.K., Heinrichs, D.E. and Murphy, M.E. Synthesis of L-2,3-diaminopropionic acid, a siderophore and antibiotic precursor. Chem. Biol. 21 (2014) 379–388. [PMID: 24485762]
[EC 2.5.1.140 created 2017]