The cDNA fragment was inserted at the XhoI-SacI site of the attBpBC vector. The attBpBC vector is the pBC SK+ vector (Cm resistance; http://www.stratagene. com/vectors/selection/plasmid1.htm) with sequences including attB1 and attB2 sites (CTCGAGCAGCTGAAGCTTTCACAAGTTTGTACAAAAAAGCAGGCTCTTC-5' end of cDNA, GAGCTCTCACCACTTTGTACAAGAAAGCTGGGCGGCCGCTTTTTTTTTTTTTTTTTT-3' end of cDNA).