Expression of FIM and of the
fusion transcripts. (a) Northern blot analysis of the
expression of FIM. Northern blots with indicated human
adult poly(A)+ RNAs were hybridized with the
FIM 27.1a probe. β-actin was used as control.
(b) RT-PCR products obtained from SCID t(8;13) and
normal breast (Upper and Lower Right,
respectively) RNAs using FGFR1 and FIM
primers located near the translocation, without (four first lanes) or
with (five last lanes) oligonucleotide competition.
(Right) Primers used were: lane 1, FA and F9; lane 2, X1
and 1R; lane 3, FA and 1R; lane 4, X1 and F9; lane 5, FA, F9, and 1R;
lane 6, FA, F9, and X1; lane 7, X1, 1R, and FA; lane 8, F9, X1, and 1R;
and lane 9, FA, F9, X1, and 1R. The two variant products of the
wild-type FGFR1 gene of 180 and 186 bp (FA and F9
primers) are seen in lanes 1, 5, 6, and 9. β-actin primers were used
to estimate the efficiency of the PCR reactions (Left).
The respective chromosomal positions and the transcripts identified in
each reaction are indicated at the top and on the right,
respectively.