2.4.2.35 2-mercaptoethanol slight stimulation 2.4.2.35 dithioerythritol slight stimulation 2.4.2.35 glutathione slight stimulation 2.4.2.35 additional information no stimulation by bovine serum albumin, not affected by anions like chloride and sulfate 2.4.2.35 NH4+ high activation 2.4.2.35 sucrose slight stimulation