These proteins consist of two independent polypeptides, which correspond to the A/B subunit moieties. Flavoproteins utilize the unique and versatile structure of flavin moieties to catalyze difficult redox reactions. Crosslinking of peptidyl moieties of adjacent glycan strands is a two-step reaction. Class IV bacteriocins are defined as complex bacteriocins containing lipid or carbohydrate moieties. Acetylcholine moieties were inserted to increase receptor affinity. Together, these proteins enable LS to produce lactose by transferring galactose moieties to glucose. Chemically, folates consist of three distinct chemical moieties linked together. Lectins are sugar-binding proteins which are highly specific for their sugar moieties. Nitro blue tetrazolium is a chemical compound composed of two tetrazole moieties. The dissolution rate of the strained or partially disconnected silicate moieties is strongly enhanced. Alkylidene carbenes are alluring in that they offer formation of cyclopentene moieties. In some instances moieties may be composed of yet smaller moieties and functional groups. The sugar moieties are nonreactive and the DNA backbone is not broken. An iminium can serve as one of the pi-bonded moieties in the rearrangement. When used to refer to moieties, multiple single bonds differ from a single multiple bond.