| EC |
6.3.2.54 |
| Accepted name: |
L-2,3-diaminopropanoate—citrate ligase |
| Reaction: |
ATP + L-2,3-diaminopropanoate + citrate = AMP + diphosphate + 2-[(L-alanin-3-ylcarbamoyl)methyl]-2-hydroxybutanedioate |
| Glossary: |
staphyloferrin B = 5-[(2-{[(3S)-5-{[(2S)-2-amino-2-carboxyethyl]amino}-3-carboxy-3-hydroxy-5-oxopentanoyl]amino}ethyl)amino]-2,5-dioxopentanoate |
| Other name(s): |
sbnE (gene name); 2-[(L-alanin-3-ylcarbamoyl)methyl]-2-hydroxybutanedioate synthtase |
| Systematic name: |
L-2,3-diaminopropanoate:citrate ligase (2-[(L-alanin-3-ylcarbamoyl)methyl]-2-hydroxybutanedioate-forming) |
| Comments: |
Requires Mg2+. The enzyme, characterized from the bacterium Staphylococcus aureus, is involved in the biosynthesis of the siderophore staphyloferrin B. It belongs to a class of siderophore synthases known as type A nonribosomal peptide synthase-independent synthases (NIS). Type A NIS enzymes are responsible for the formation of amide or ester bonds between polyamines or amino alcohols and a prochiral carboxyl group of citrate. The enzyme forms a citrate adenylate intermediate prior to ligation. |
| Links to other databases: |
BRENDA, EXPASY, KEGG, MetaCyc |
| References: |
| 1. |
Dale, S.E., Doherty-Kirby, A., Lajoie, G. and Heinrichs, D.E. Role of siderophore biosynthesis in virulence of Staphylococcus aureus: identification and characterization of genes involved in production of a siderophore. Infect. Immun. 72 (2004) 29–37. [PMID: 14688077] |
| 2. |
Cheung, J., Beasley, F.C., Liu, S., Lajoie, G.A. and Heinrichs, D.E. Molecular characterization of staphyloferrin B biosynthesis in Staphylococcus aureus. Mol. Microbiol. 74 (2009) 594–608. [PMID: 19775248] |
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| [EC 6.3.2.54 created 2019] |
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