J Appl Physiol 94(4):15721582 Medved I, Brown MJ, Bjorksten AR, McKenna MJ (2004a) Effects of intravenous N-acetylcysteine infusion on time to fatigue and potassium regulation during prolonged cycling exercise
Store unopened vials as instructed, and after reconstitution keep refrigerated if the label directs

Table 1 Common Fusion Tags and Their Properties Tag Hexa-histidine Size (kDa) 0.84 Ligand Ni-IDA Elution Imidazole Properties Small size and easy to integrate into protein, simple purification process, mild elution condition Tag GST Size (kDa) 26 Ligand Glutathione Elution Glutathione Properties Simple purification process, mild elution condition Tag Biotin Size (kDa) 0.244 Ligand Monomeric avidin Elution Biotin Properties Small size, high specificity and affinity to avidin, simple purification process, mild elution condition Size (kDa) Ligand Elution Properties Hexa-histidine 0.84 Ni-IDA Imidazole Small size and easy to integrate into protein, simple purification process, mild elution condition GST 26 Glutathione Glutathione Simple purification process, mild elution condition Biotin 0.244 Monomeric avidin Biotin Small size, high specificity and affinity to avidin, simple purification process, mild elution condition A polyhistidine tag, also called 6xHis-tag, His-tagged, and His-tag is a versatile tool for purifying the highly purified recombinant protein from various expression systems, including bacterial, yeast, plant cell, and mammalian cells systems

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