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SRX2567306: GSM2493754: P42_Retina_Ribo_rep2; Mus musculus; RNA-Seq
1 ILLUMINA (Illumina HiSeq 2500) run: 53.4M spots, 2.7G bases, 752.1Mb downloads

Submitted by: NCBI (GEO)
Study: A spatio-temporal translatome of mouse tissue development
show Abstracthide Abstract
Functional specification of mammalian tissues is a result of precise regulation of gene expression during development. Although previous transcriptomic and proteomic analyses have provided great biological insight into tissue specific gene expression and their physiological relevance in development, our understanding of translational regulation in developing tissues is lacking. Here, we report a spatio-temporally resolved translatome analysis of six mouse tissues at embryonic and adult stages to quantify the effects of translational regulation and identify new translational components. We quantified the spatial and temporal divergence of gene expression and showed specific changes in gene expression and pathways underlying the divergence. We further showed dynamic translational control by modulating translational efficiency, enhancing tissue specificity during development. We discovered thousands of actively translated upstream open read frames (ORFs) that exhibited spatio-temporal patterns and demonstrated their regulatory roles in translational regulation. Finally, we identified known and novel micropeptides encoded by small ORFs from long non-coding RNAs with functional relevance to tissue development. Our data and analyses facilitate a better understanding of complex translational regulation across tissue and developmental spectra and serve as a useful resource of mouse translatome. Overall design: Ribosome profiling (Ribo-seq) and RNA sequencing (RNA-seq) were performed for six embryo tissues and six adult tissues separately from wild-type C57BL/6 mice at embryonic day (E) 15.5 and postnatal day (P) 42, including ectoderm-derived brain and retina, mesoderm-derived heart and kidney, as well as endoderm-derived liver and lung. For each tissue, two biological replicates were performed.
Sample: P42_Retina_Ribo_rep2
SAMN06342333 • SRS1983680 • All experiments • All runs
Organism: Mus musculus
Library:
Instrument: Illumina HiSeq 2500
Strategy: RNA-Seq
Source: TRANSCRIPTOMIC
Selection: cDNA
Layout: SINGLE
Construction protocol: Frozen tissue samples were lysed separately using 1 ml of mammalian lysis buffer (200 µl 5x Mammalian Polysome Buffer, 100 µl 10% Triton X-100, 10 µl DTT(100 mM), 10 µl DNase I (1U/µl), 2 µl Cycloheximide (50 mg/ml), 10 µl 10% NP-40 and 668 µl Nuclease-Free Water). After incubation for 20 min on ice, lysates were cleared by centrifugation at 10000 x g for 3 min at 4°C. Ribosomal RNA was depleted using the Ribo-Zero magnetic kit (Epicentre). Sequencing libraries of ribosome protected fragments were generated using ARTseqTM Ribosome Profiling Kit according to the manufacturer's instructions. Sequencing libraries of poly(A)+ RNA were generated using VAHTSTM mRNA-seq v2 Library Prep Kit for Illumina according to the manufacturer's instructions. Sequencing libraries of ribosome protected fragments were generated using ARTseqTM Ribosome Profiling Kit (Epicentre, RPHMR12126) according to the manufacturer's instructions. And, sequencing libraries of poly(A)+ RNA were generated using VAHTSTM mRNA-seq v2 Library Prep Kit for Illumina (Vazyme Biotech, NR601-01) according to the manufacturer's instructions.
Experiment attributes:
GEO Accession: GSM2493754
Links:
Runs: 1 run, 53.4M spots, 2.7G bases, 752.1Mb
Run# of Spots# of BasesSizePublished
SRR526289553,428,8142.7G752.1Mb2018-10-01

ID:
3709698

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