Figure 3.
Mapping of the CaVβ1a nuclear localization domain. (A) Diagram of constructed CaVβ1a-YFP truncation mutants and respective cytoplasmic and nuclear intensity in untreated and LMB-treated cells. Conserved SH3 and GK domains are noted in dark blue, putative NLS highlighted in purple, and YFP sequence in green. Construct names indicate amino acids remaining after truncation, with CaVβ1a-1-524 as full-length CaVβ1a. Table reflects relative intensity of cytoplasmic (Cyto) and nuclear Cavβ1a. (B) Enlarged image of CaVβ1a-161-524, which is absent from the nucleus after LMB treatment. (C) Enlarged image of CaVβ1a-101-274, which is present in the nucleus without LMB treatment. Nuclei (DNA) in all images were stained blue with Hoechst dye. Bars: (B and C) 50 µm.