DNA FRAGMENT WHICH CODES FOR TUMOR CELL PROLIFERATION INHIBITING FACTOR.
摘要
<p>A DNA fragment having the base sequence represented by formula (1) and coding for a tumor cell proliferation inhibiting factor can be obtained by preparing a cDNA library from the mRNA of an established cell line derived from 3T3 cells, amplifying various DNA fragments which supposedly code for a tumor cell proliferation inhibiting factor by the PCR technique, and analyzing the base sequences of the amplified DNA fragments to determine the base sequence of the DNA which codes for the inhibiting factor. In said formula (1) X represents TTC TTT CTA or TTC. <IMAGE> <IMAGE></p>
