Journal article

Dynamic Structural Changes Accompany the Production of 2-Dihydroxypropanesulfonate by Sulfolactaldehyde Reductase

Mahima Sharma, Palika Abayakoon, James Lingford, Yi Jin, Ruwan Epa, Ethan D Goddard-Borger, Gideon Davies, Spencer Williams

American Chemical Society (ACS) | Published : 2019

Abstract

2,3-Dihydroxypropanesulfonate (DHPS) is a major sulfur species in the biosphere. One important route for the production of DHPS includes sulfoglycolytic catabolism of sulfoquinovose (SQ) through the Embden-Meyerhof-Parnas (sulfo-EMP) pathway. SQ is a sulfonated carbohydrate present in plant and cyanobacterial sulfolipids (sulfoquinovosyl diacylglyceride and its metabolites) and is biosynthesised globally at a rate of around 10 billion tonnes per annum. The final step in the bacterial sulfo-EMP pathway involves reduction of sulfolactaldehyde (SLA) to DHPS, catalysed by an NADH-dependent SLA reductase. On the basis of conserved sequence motifs, we assign SLA reductase to the β-hydroxyacid dehy..

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