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Figure 6. Conserved Residues in Activin Loop-β8 Region Confer Independence from EGF-CFC CoreceptorsSynthetic mRNAs (200 pg) encoding Sqt harboring multiple mutations from ActivinβB (shown in red) were injected into wild-type and MZoep embryos. gsc and ntl mRNA expression is shown at shield stage; animal pole views are dorsal to the right. Schematic is not drawn to scale. Note that the Sqt3 and Sqt5 constructs containing the Lys102–X–Asp104 motif and Asn99 insertion show weak expansion of ntl expression animally and dorsally in MZoep mutants. Image published in: Cheng SK et al. (2004) Copyright: ©2004 Cheng et al. This image is reproduced with permission of the journal and the copyright holder. This is an open-access article distributed under the terms of the Creative Commons Attribution license Larger Image Printer Friendly View

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