Observation of RNA polymerase clusters in a live zebrafish embryo

Data showing the distribution of RNA polymerase II with serine 5 phosphorylation in the C-terminal domain (CTD) of the subunit 1 (Pol II Ser5P) in a live zebrafish embryo. Images were acquired by instant-SIM microscopy, Pol II Ser5P was marked by fluorescently labeled antibody fragments (Fab) provided by the laboratory of Hiroshi Kimura, Tokyo Institute of Technology. Data were processed using FIJI.