Reaction: (2S)-2,3-dihydroxypropane-1-sulfonate = hydroxyacetone + sulfite
Glossary: (2S)-2,3-dihydroxypropane-1-sulfonate = (2S)-3-sulfopropanediol
Other name(s): DHPS sulfolyase; hpsG (gene name)
Systematic name: (2S)-2,3-dihydroxypropane-1-sulfonate sulfite-lyase
Comments: The enzyme, characterized from the human gut bacterium Bilophila wadsworthia, contains a glycyl radical that is generated by a dedicated activating enzyme via chemistry involving S-adenosyl-L-methionine (AdoMet) and a [4Fe-4S] cluster.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, CAS registry number:
References:
1. Liu, J., Wei, Y., Lin, L., Teng, L., Yin, J., Lu, Q., Chen, J., Zheng, Y., Li, Y., Xu, R., Zhai, W., Liu, Y., Liu, Y., Cao, P., Ang, E.L., Zhao, H., Yuchi, Z. and Zhang, Y. Two radical-dependent mechanisms for anaerobic degradation of the globally abundant organosulfur compound dihydroxypropanesulfonate. Proc. Natl. Acad. Sci. USA 117 (2020) 15599-15608. [PMID: 32571930]