Reaction: L-altarate = 5-dehydro-4-deoxy-D-glucarate + H2O
Glossary: L-altrarate = L-talarate = (2R,3R,4S,5R)-2,3,4,5-tetrahydroxyhexanedioate
Other name(s): L-talarate hydro-lyase
Systematic name: L-altarate hydro-lyase (5-dehydro-4-deoxy-D-glucarate-forming)
Comments: Requires Mg2+. The enzyme, isolated from the bacteria Salmonella typhimurium and Polaromonas sp. JS666, also has activity with galactarate (cf. EC 22.214.171.124, galactarate dehydratase).
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number:
1. Yew, W.S., Fedorov, A.A., Fedorov, E.V., Almo, S.C. and Gerlt, J.A. Evolution of enzymatic activities in the enolase superfamily: L-talarate/galactarate dehydratase from Salmonella typhimurium LT2. Biochemistry 46 (2007) 9564-9577. [PMID: 17649980]