Fig. 5
- ID
- ZDB-FIG-140117-41
- Publication
- Yogev et al., 2013 - eIF4EBP3L acts as a gatekeeper of TORC1 in activity-dependent muscle growth by specifically regulating Mef2ca translational initiation
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Overexpression of eIF4EBP3L reduces and knockdown rescues Mef2c. Zebrafish embryos injected with RNA encoding eIF4EBP3L (A–C, F) or control MO or BP3L MO1 (D, E) were grown to 48–54 hpf and some exposed to MS222 for the last 17 h (A, B, E) or to 5 μM rapamycin for 6 h (Rap; A, C, F) or remained as untreated controls. (A–C) Mef2c immunostaining intensity quantified by confocal microscopy in 54 hpf embryos shows that overexpression of eIF4EBP3L reduced Mef2c protein in inactive (B) or rapamycin-treated (C) muscle. n = 60 (B) and n = 20 (C) embryos/sample. Scale bar = 90 μm. (D) Level of indicated mRNAs assayed by qPCR shows that BP3L morphants have reduced eif4ebp3l mRNA. (E) Western analysis shows that BP3L MO1 prevented decrease in Mef2c caused by inactivity compared to actin loading control. Bars represent SEM. Samples were compared by t test. All experiments were repeated at least twice. (F) Polysomal fractionation followed by triplicate qPCR for mef2ca and dmd mRNAs on polysomal and subpolysomal fractions. |
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Stage: | Long-pec |