hydro-lyase activity methylthioribulose 1-phosphate dehydratase activity https://github.com/geneontology/go-ontology/issues/30193 RHEA:15549 methylthioribulose-1-phosphate dehydratase activity GO:0043809 KEGG_REACTION:R07392 MetaCyc:R145-RXN 1-PMT-ribulose dehydratase activity Reactome:R-HSA-1237140 S-methyl-5-thio-D-ribulose-1-phosphate hydro-lyase activity S-methyl-5-thio-D-ribulose-1-phosphate hydro-lyase [5-(methylthio)-2,3-dioxopentyl-phosphate-forming] molecular_function EC:4.2.1.109 S-methyl-5-thio-D-ribulose-1-phosphate hydro-lyase[5-(methylthio)-2,3-dioxopentyl-phosphate-forming] Catalysis of the reaction: S-methyl-5-thio-D-ribulose 1-phosphate = 5-(methylthio)-2,3-dioxopentyl phosphate + H2O. 5-methylthioribulose-1-phosphate 4-dehydratase activity GO:0046570