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Sequence and expression analysis of a Xenopus laevis cDNA which encodes a homologue of mammalian 14-3-3 zeta protein

Kousteni, Stavroula, Tura, Feray, Sweeney, Glen E. and Ramji, Dipak Purshottam 1997. Sequence and expression analysis of a Xenopus laevis cDNA which encodes a homologue of mammalian 14-3-3 zeta protein. Gene 190 (2) , pp. 279-285. 10.1016/S0378-1119(97)00013-9

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Abstract

We report the cloning and characterisation of a cDNA that encodes a novel member of the Xenopus laevis 14-3-3 protein family. Sequence analysis reveals that the cDNA-encoded protein shares 84% identity with the rat, human or sheep 14-3-3ζ isoform, and between 66% and 77% identity with bovine, human or rat β, bovine γ, human τ, Drosophila 14-3-3 and a previously isolated Xenopus member. The corresponding mRNA is present in all adult tissues examined with the highest levels in the brain. Although the gene is expressed throughout embryogenesis, higher levels of mRNA accumulate after gastrulation. Whole-mount in situ hybridisation on tailbud stage embryo reveals strong expression of the gene in the head, optic vesicles, spinal cord and branchial arches with weaker expression in the somites. In addition, expression along the notochord is observed at stage 45 (tadpole). This spatial and temporal expression profile along with recent studies implicating the importance of 14-3-3 proteins in the regulation of signal transduction pathways argues for a key role of this isoform in embryonic development.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Biosciences
Publisher: Elsevier
ISSN: 0378-1119
Last Modified: 02 May 2019 11:00
URI: http://orca.cf.ac.uk/id/eprint/65598

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