Ribosomal protein mRNAs increase dramatically during Xenopus development☆
[摘要] TheamountofmessengerRNApermicrogramofrRNAincreasesthree-tofourfoldduringXenopusearlydevelopment.Thisincreaseisthesamewhenmeasuredbystimulationofinvitroproteinsynthesisorbypoly(U)hybridization.TheincreaseinmRNAperembryothereforeisapproximatelysix-toeightfoldsincetheribosomecontentdoublesbetweenfertilizationandthestage41tadpole.TheamountofribosomalproteinmRNA,asassayedbyinvitroproteinsynthesis,alsoincreasesdramaticallyduringearlydevelopment.ThisincreaseismuchmorepronouncedthanthegeneralincreaseinmRNAcontent,i.e.,thereisadramaticincreaseintheabundanceaswellastheamountoftheribosomalproteinmRNA.SinceribosomalproteinmRNAsarepredominantlysmallmRNAs,theincreaseinribosomalproteinmRNAabundancecontributestothegeneraldecreaseintheaveragesizeofpA+RNAthatoccursduringearlydevelopmentinXenopus.
[发布日期] [发布机构]
[效力级别] [学科分类] 生物科学（综合）
[关键词] [时效性]
