Fig. 4. Tissue distribution of Atlantic cod GLUT1. (A) Northern blot analysis of
total RNA from various cod tissues hybridized with a 664 bp antisense RNA
probe specific for Atlantic cod GLUT1. Top panel shows the 4560 bp GLUT1 mRNA
transcript; bottom panel the 18S rRNA bands, as detected by ethidium bromide
staining. MW, RNA marker (kb). (B) RT-PCR analysis. Top panel shows a 642
bpfragment amplified using primers located within the Atlantic cod GLUT1 ORF;
bottom panel a 617 bp fragment amplified using cod ß-actin-specific
primers. MW, DNA marker (bp).