
Figure 3.
Northern blot hybridization of fetal and adult poly(A)+ mRNA with a partial Smn cDNA. Smn transcripts (∼1.4 kb) are expressed in all tissues and developmental stages analyzed. A 4.4-kb transcript is also present in liver. After hybridization withSmn, Northern blots were stripped and reprobed with β-actin to determine the relative amount of poly(A)+ mRNA in each lane.











