This entry represents the C-terminal domain of the nickel-dependent lactate racemase enzyme (LarA) [1]. LarA is part of a superfamily containing many different enzymes [4]. These include malate racemases, phenyllactate racemase, one alpha-hydroxyglutarate racemase, D-gluconate 2-epimerase, a short-chain aliphatic alpha-hydroxyacid racemase [4].

1: Lactate racemase is a nickel-dependent enzyme activated by a widespread maturation system. Desguin B, Goffin P, Viaene E, Kleerebezem M, Martin-Diaconescu V, Maroney MJ, Declercq JP, Soumillion P, Hols P; Nat Commun. 2014;5:3615. PMID:24710389

2: METALLOPROTEINS. A tethered niacin-derived pincer complex with a nickel-carbon bond in lactate racemase. Desguin B, Zhang T, Soumillion P, Hols P, Hu J, Hausinger RP; Science. 2015;349:66-69. PMID:26138974

3: Lactate Racemase Nickel-Pincer Cofactor Operates by a Proton-Coupled Hydride Transfer Mechanism. Rankin JA, Mauban RC, Fellner M, Desguin B, McCracken J, Hu J, Varganov SA, Hausinger RP; Biochemistry. 2018;57:3244-3251. PMID:29489337

4: Uncovering a superfamily of nickel-dependent hydroxyacid racemases and epimerases. Desguin B, Urdiain-Arraiza J, Da Costa M, Fellner M, Hu J, Hausinger RP, Desmet T, Hols P, Soumillion P; Sci Rep. 2020;10:18123. PMID:33093595