In certain embodiments, P X is an introduced heterologous molecule, meaning that the cell or {HEAD ~ its ancestors} was genetically altered with {TAIL ~ a vector} comprising P X 
genetically altered with
In certain embodiments , P X is an introduced heterologous molecule , meaning that the cell or { HEAD ~ its ancestors } was genetically altered with { TAIL ~ a vector } comprising P X
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH