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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Histone gene expression in early development of Xenopus laevis. Analysis of histone mRNA in oocytes and embryos by blot-hybridization and cell-free translation.

This study comprises the hybridization analysis of electrophoretically separated histone mRNAs from oocytes and embryos of Xenopus laevis, and analysis of in vitro translation products of these mRNAs on polyacrylamide gels containing sodium dodecyl sulfate (SDS) or Triton X-100. In oocytes and embryos up to the tailbud stage, four types of mRNAs complementary to histone H2B DNA and two complementary to histone H4 DNA can be discriminated by their different electrophoretic mobilities on polyacrylamide gels. Electrophoretic heterogeneity was not detected for messengers for histones H2A and H3. Histone mRNA, purified by hybridization under stringent conditions with a cloned histone gene cluster, was used to direct histone protein synthesis in a wheat-germ cell free system. The proteins synthesized comigrate with purified marker histones when electrophoresed on SDS-gels or acid-urea gels containing Triton X-100. When hybrid-selected histone mRNAs from oocytes and embryos in different developmental stages are translated, the proteins made by the mRNA from one stage can not be discriminated from those made by the mRNA from another stage after electrophoresis on SDS-gels or acid urea Triton X-100 gels.[1]


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