The following stocks contain transgenes that express tagged proteins that bind specific RNA sequences. They may be used to localize mRNA transcripts intracellularly.
The most common protein is the bacteriophage coat protein MCP. It binds the MS2 stem–loop sequence, which can be introduced into the transcribed sequences of genes.
Similarly, transgenes expressing the the PCP RNA-binding protein may be used to detect mRNA transcripts incorporating the PP7 hairpin loop.