... M, Teramoto T, Kumagaye KY, Nakajima K,Watanabe T, Kawai T, Kawakami Y, Niidome T,Sawada K, Nishizawa Y et al. (1994) Omega-agatoxin-TK containing D-serine at position 46, but not syn-thetic ... China Sea. Sephadex G-25 was purchased from Amersham Biosciences (Uppsala, Sweden), a ZORBAX300SB-C18 semipreparative column was from Agilent Tech-nologies (Santa Clara, CA, USA), and trifluoroacetic ... precursorsequence of conomarphin. The signal pep-tide is shadowed and the mature peptide isunderlined. The polyA signal AATAAA in the 3¢-UTR is also underlined. The cDNA of con-omarphin has been deposited...