Northern-blot analysis. Total RNA (20 μg) was loaded. As a control for loading calibration, the C. elegans homologue of eif was used. The
abf-1 transcripts were detected as five bands. The short SL-less and long SL-trans-spliced transcripts of
abf-1 could be the 0.3 and 0.5 kb bands. In contrast, the
abf-2 transcript was detected as a single band (0.4 kb, identical with the short SL-less form). The accumulation of both
abf-1 and
abf-2 transcripts was almost identical in adults of N2 and
glp-4(
bn2), and the eggs.