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The miRNA/mRNA regulation by Translin associated factor X (TRAX) in WT and R6/2 HD mice

ABSTRACT: The miRNA/mRNA regulation by Translin associated factor X (TRAX) in WT and R6/2 HD mice

PROVIDER: PRJNA777614 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR16764836_1.fastq.gz	Fastqsanger.gz
	SRR16764836_2.fastq.gz	Fastqsanger.gz
	SRR16764837_1.fastq.gz	Fastqsanger.gz
	SRR16764837_2.fastq.gz	Fastqsanger.gz
	SRR16764838_1.fastq.gz	Fastqsanger.gz

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Project description:For the bilateral intrastriatal delivery of AAV expressing control or TRAX shRNA, mice were anesthetized with ketamine/xylazine HCl (87.56 and 7.5 ug/kg, respectively, via an intraperitoneal injection) and injected with the indicated AAV (2 µl per injection spot, 2.5*10^9 vector genome/µl) with a 10 ml syringe (Hamilton, Reno, NV, USA) at a rate of 0.5 ul/min. The AAV was injected at the desired position: AP+0.5, L±2, DV-2.5 and -3.5 mm relative to bregma and the dura surface. Then the mouse brains were removed from the mice directly for dissection of striatum. RNA was extracted by TRIzol reagent or miRNeasy mini kit (Qiagen). DNase digestion was performed by the DNA-free™ Kit (Life Technologies, Carlsbad, CA, USA) or the RNase-free DNase set (Qiagen) following the manufacturer’s instructions. The concentration and purity of RNA were measured at 260, 280 and 230 nm by a NanoDrop (Thermo Fisher Scientific, Waltham, MA, USA). Sample libraries were prepared using the QIAseq miRNA Library Kit (QIAGEN) according to the manufacturer's protocols. Adaptors are ligated sequentially to the 3' and 5' ends of miRNAs. Subsequently, universal cDNA synthesis with UMI assignment, cDNA cleanup, library amplification and library cleanup are performed. Libraries were sequenced on an Illumina instrument (75-cycle single-end read, 75SE). Sequencing data was processed using the Illumina software BCL2FASTQ v2.20. Initially, the sequences generated went through a filtering process to obtain qualified reads. Trimmomatic (1) was implemented to clip the 3′ adaptor sequence, trim or remove the reads according to the quality score and discard trimmed reads shorter than 18 nucleotides. Qualified reads after filtering low-quality data were analyzed using miRDeep2 (2) for aligning reads to the reference genome downloaded from UCSC. Only reads that mapped perfectly to the genome five or less times were used for miRNA detection, since miRNAs usually map to few genomic locations. MiRDeep2 estimates expression levels of known miRNAs, and also identifies novel miRNAs. The small RNA library construction, NGS deep sequencing and bioinformatic analysis were accomplished by Welgene Biotech. Co., Ltd. (Taipei, ROC).

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The miRNA/mRNA regulation by Translin associated factor X (TRAX) in WT and R6/2 HD mice

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