The one or more purified polypeptides can be linked to a heterologous protein, an indicator reagent, {HEAD ~ an amino acid spacer}, an amino acid linker, a signal sequence, a stop transfer sequence, a transmembrane domain, {TAIL ~ a protein purification ligand}, or a combination thereof 
The one or more purified polypeptides can be linked to a heterologous protein , an indicator reagent , { HEAD ~ an amino acid spacer } , an amino acid linker , a signal sequence , a stop transfer sequence , a transmembrane domain , { TAIL ~ a protein purification ligand } , or a combination thereof
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH