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. Author manuscript; available in PMC: 2020 Oct 7.
Published in final edited form as: Dev Cell. 2019 Aug 29;51(1):89–98.e4. doi: 10.1016/j.devcel.2019.08.002

Figure 1. Nrp1 is expressed in Tw2+ cells and is a target of Twist2.

Figure 1.

(A) Levels of Nrp1 and Nrp2 mRNA expression in freshly isolated Tw2+ cells vs Pax7+ cells, as determined by RNA-seq. (B) Western blot of NRP1 protein levels in cultured Tw2-derived myoblasts (Tw2-MB) and Pax7-derived myoblasts (Pax7-MB). GAPDH serves as a loading control. (C) Levels of Nrp1 and Nrp2 mRNA expression in Twist2-overexpressing Tw2-MB (Tw2-DM) and GFP-infected Tw2-MB (GFP-DM) after 4 days in differentiation medium, as determined by RNA-seq. (D) Genome browser shot of Twist2 binding at the Nrp1 promoter in both growth media (GM) and differentiation media (DM). (E) (Top panel) Co-immunostaining of Nrp1 (green), Twist2 (red), and Hoechst (blue) in adult mouse transverse section of quadriceps muscle. (Bottom panel) Zoomed in image of top panel. Scale: 50 µm. See also Figure S1