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We have previously identified two Xenopus homologues of mammalian IQGAP, XIQGAP1 and XIQGAP2, which show high homology with human IQGAP1 and IQGAP2, respectively. In order to clarify function of the IQGAPs during development, we performed knock-down experiments on the XIQGAPs in Xenopus laevis embryos by microinjecting morpholino antisense oligonucleotides into blastomeres at the two-cell stage. Suppression...
LIM kinases (LIMK), including LIMK1 and LIMK2, are unique LIM-family proteins containing a catalytic (kinase) domain. These kinases phosphorylate an actin-depolymerizing factor, cofilin, involved in the regulation of actin-filament dynamics. An unanswered question is the in vivo function of LIMK and how they contribute to development. When we cloned Xenopus homologues of mammalian LIMK, Xlimk1 and...
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