The resulting labeled biomolecules retain {HEAD ~ their solubility} in {TAIL ~ water} and are well accepted by enzymes 
in
The resulting labeled biomolecules retain { HEAD ~ their solubility } in { TAIL ~ water } and are well accepted by enzymes
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH