The cDNA fragment was originally inserted at SalI-NotI site
of the pBluescript II SK(+) vector (GenBank Accession No.
X52328, AmpR) and a synthetic oligonucleotide (1-52) was subcloned 
upstream of the cDNA (53- 4602). The adjacent sequence to the 5' end of 
the cDNA is as follows:
GGGCCCCCCCTCGAGGTCGACCCACGCGT-5' end of cDNA.