Imaging of xERK2-LOC in a whole living  Xenopus laevis  stage 38 tadpole. The embryo, head to the left, shows substantial nuclear accumulation of xERK2-LOC in the cells of the forebrain-midbrain boundary.
Sipieter F, Cappe B, Gonzalez Pisfil M, Spriet C, Bodart J, Cailliau-Maggio K, Vandenabeele P, Héliot L, Riquet F
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<a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4627772/bin/pone.0140924.s007.mp4">S5 Movie</a> from <cite style="font-style:normal">Sipieter F, Cappe B, Gonzalez Pisfil M, Spriet C, Bodart J, Cailliau-Maggio K, Vandenabeele P, Héliot L, Riquet F (2015). "<a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4627772">Novel Reporter for Faithful Monitoring of ERK2 Dynamics in Living Cells and Model Organisms</a>". <i>PLOS ONE</i>. <a href="https://en.wikipedia.org/wiki/Digital_object_identifier" class="extiw" title="w:Digital object identifier">DOI</a>:<a rel="nofollow" class="external text" href="https://doi.org/10.1371/journal.pone.0140924">10.1371/journal.pone.0140924</a>. <a href="https://en.wikipedia.org/wiki/PMID" class="extiw" title="w:PMID">PMID</a> <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pubmed/26517832">26517832</a>. <a href="https://en.wikipedia.org/wiki/PubMed_Central" class="extiw" title="w:PubMed Central">PMC</a>: <a rel="nofollow" class="external text" href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4627772">4627772</a>.</cite>