Detection of an increase in fluorescent signal indicates the presence of {HEAD ~ the enzyme} in {TAIL ~ the sample} 
in
Detection of an increase in fluorescent signal indicates the presence of { HEAD ~ the enzyme } in { TAIL ~ the sample }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL