mannosyltransferase complex dolichol-phosphate-mannose synthase complex A protein complex that possesses dolichyl-phosphate beta-D-mannosyltransferase activity; contains a catalytic subunit, a regulatory subunit, and a third subunit that stabilizes the complex. In human and several other metazoa, the subunits are named DPM1, DPM2 and DPM3, respectively. DPM synthase complex GO:0033185 cellular_component dolichyl-phosphate beta-D-mannosyltransferase complex go.owl pro.owl