| 摘要 |
The invention is a protein having the amino acid sequence of Seq. I.D. No. 1 or an allelic variation retaining the biological activity of the protein having the amino acid sequence of Seq. I.D. No. 1, a DNA segment coding for a protein according to claim 1, preferably DNA segment according to claim 2 having the sequence of Seq. I.D. No. 2, or a substitution analog or allelic variation of Seq. I.D. No. 2, a chimeric cell comprising the DNA segment coding for a protein of Seq. I.D. No. 1, preferably a chimeric cell comprising the DNA segment of Seq. I.D. No. 2, a vector comprising a DNA segment coding for a protein having Seq. I.D. No. 1 operably linked to a promoter. The invention provides a preferred vector comprising the following components operably linked from 5' to 3': (a) a promoter; (b) a signal sequence; (c) 5' portion of a highly expressed gene endogenous to a selected host cell; (d) a linker sequence; all preceding the nucleotide sequence coding for TADG7 protein. The invention provides a protein production method which comprises expressing a DNA segment coding for a protein with the amino acid sequence of Seq. I.D. No. 1 in a chimeric host cell, preferably one which comprises expressing the DNA segment having the sequence of Seq. I.D. No. 2 or a substitution analog. The protein may play a role in signal transduction. The invention provides a means for early detection of ovarian cancer.
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