{HEAD ~ Computer analysis} of the predicted amino acid sequence of the envelope protein of the HTLVIII B and ARV 2 isolates of HIV established the secondary structure and {TAIL ~ location} of hydrophilic regions 
{ HEAD ~ Computer analysis } of the predicted amino acid sequence of the envelope protein of the HTLVIII B and ARV 2 isolates of HIV established the secondary structure and { TAIL ~ location } of hydrophilic regions
HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH