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. Author manuscript; available in PMC: 2009 Aug 1.
Published in final edited form as: Dev Biol. 2008 May 8;320(1):131–139. doi: 10.1016/j.ydbio.2008.04.037

Figure 4. Defects of mesenchymal cell maturation in Twist1−/− mutant embryos.

Figure 4

Immunohistochemical staining on transverse sections of E11.5 Twist1−/− embryos show an absence of SM-α-actin (A) and periostin (B) protein within the abnormal OFT mesenchymal nodules.