Ribonucleoprotein particles of quiescent maize embryonic axes.
作者： Alma Rincón-Guzmán , Elda Beltrán-Peña , Adriana Ortíz-López , Estela Sánchez de Jiménez
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摘要: Certain RNA molecules are known to be sequestered and stored as ribonucleoprotein particles (RNPs) in many different tissues, particularly at some stages of metabolic quiescence. In this research RNPs from embryonic axes mature maize seeds were isolated by sucrose CsCl gradient centrifugation characterized based on their protein contents. Two types RNP non-ribosomal nature identified northern blot analysis with specific probes: the 7S signal recognition particle (SRP) which contain 5S rRNA respectively. The proteins associated these transcription factor TFIIIA-homologous RNP, p72, p68 p54-GTPase SRP.
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