Ribonucleic acid blotting

Blot overlays include the probing of membrane with various molecules to detect the presence of specific binding domains, for example, with guanine triphosphate (25,26) or proteoglycans (27). In the Southern or North Western blotting, the membrane is probed with deoxyribonucleic acid or ribonucleic acid molecules to detect nucleic-acid binding proteins (28). 

Northern blot The technique by which molecules of ribonucleic acid (RNA) are separated by gel electrophoresis, transferred to a membrane support, and incubated with labeled oligonucleotide probes. Specificity is obtained by using ohgonucleotide probes that have sequences complementary to the target RNA. 

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