Updated project metadata. To address how Mbd5 binding to m5C RNAs mediates transcriptional activation of its target genes. Using the Tg[zhsp70l:FLAGmbd5iso2-E2AGFP] zebrafish, we performed heat shock at multiple developmental stages and carried out co-immunoprecipitation (co-IP) at 4 dpf using the FLAG antibody, followed by mass spectrometry