In on embodiment, the invention provides {HEAD ~ nucleic acid sequences} which regulate expression of {TAIL ~ a nucleotide sequence} of interest in an age related manner 
In on embodiment , the invention provides { HEAD ~ nucleic acid sequences } which regulate expression of { TAIL ~ a nucleotide sequence } of interest in an age related manner
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH