An isolated DNA sequence encoding {HEAD ~ the amino acid sequence} of {TAIL ~ SEQUENCE ID NO}. 18 
An isolated DNA sequence encoding { HEAD ~ the amino acid sequence } of { TAIL ~ SEQUENCE ID NO } . 18
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH