GO:0006777

The chemical reactions and pathways resulting in the formation of the Mo-molybdopterin cofactor, essential for the catalytic activity of some enzymes. The cofactor consists of a mononuclear molybdenum (Mo) ion coordinated by one or two molybdopterin ligands. [http://www.sunysb.edu/biochem/BIOCHEM/facultypages/schindelin/, ISSN:09498257]