Description Translation efficiency (TE) of mRNAs dervied from ribosome footprints was monitored in the presence or absence of 25 nM Silvestrol, an inhibitor of eukaryotic translation initiation factor 4A (eIF4A). Transcripts with reduced TE in the presence of Silvestrol were compare to transcripts with reduced TE in the presence of INK128, a catalytic mTOR inhbitor. MethodsRaw sequence data were obtained from NCBI FTP directory(SRP047065). Data from the following samples were processed:
FP_silvestrol_1hr | Ribosome profiling data from Homo sapiens(Rubio, et al. 2014) |
FP_ink128 | Ribosome profiling data from Homo sapiens(Rubio, et al. 2014) |
FP_silvestrol_2hr_br | Ribosome profiling data from Homo sapiens(Rubio, et al. 2014) |
FP_silvestrol_2hr | Ribosome profiling data from Homo sapiens(Rubio, et al. 2014) |
FP_untreated | Ribosome profiling data from Homo sapiens(Rubio, et al. 2014) |
FP_dmso_1hr | Ribosome profiling data from Homo sapiens(Rubio, et al. 2014) |
FP_dmso_2hr_br | Ribosome profiling data from Homo sapiens(Rubio, et al. 2014) |
FP_dmso | Ribosome profiling data from Homo sapiens(Rubio, et al. 2014) |
FP_dmso_2hr | Ribosome profiling data from Homo sapiens(Rubio, et al. 2014) |
Adapter sequence CTGTAGGCACCATCAAT was removed from reads using Cutadapt An alignment to ribosomal RNA was performed using Bowtie, and aligning reads were discarded. An alignment to the hg38 genome assembly was performed using Bowtie, and these tracks contains the uniquely mapping reads.An offset of 15 nucleotides was then used to get the corresponding A-site of each read.
References
Rubio CA, Weisburd B, Holderfield M, Arias C, Fang E, DeRisi JL, Fanidi A (2014) Transcriptome-wide characterization of the eIF4A signature highlights plasticity in translation regulation. . Genome Biol. 2014;15(10):476. Research Support, Non-U.S. Gov't
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