run_metadata: 49543

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rowid	run.accession	experiment.accession	sample.accession	study.accession	bioproject	study.title	study.alias	study.type	study.abstract	study.attributes	study.PMIDs	sample.description	sample.title	sample.alias	sample.centername	sample.attributes	GEOsample.title	GEOsample.dataprocessing	GEOsample.source	GEOsample.treatmentprotocol	GEOsample.extractprotocol	GEOsample.growthprotocol	GEOsample.characteristics	GEOsample.accession	experiment.title	experiment.alias	experiment.library_name	experiment.design_description	experiment.library_construction_protocol	experiment.attributes	experiment.library_strategy	experiment.library_source	experiment.library_selection	experiment.library_layout	experiment.platform	experiment.instrument_model	experiment.spot_descriptor	experiment.study_ref	run.title	run.attributes	run.filename	run.semantic_name	run.total_bases	run.total_spots	run.alias	run.read_lengths	run.base_counts	run.r1_length	run.r2_length	run.r3_length	run.r4_length	run.Acount	run.Ccount	run.Gcount	run.Tcount	run.Ncount	run.experiment	run.pool_member	submission.accession	submission.srasource	submission.bioprojectsource	seqdetective.n_mates	seqdetective.mapping_rate.mate1	seqdetective.mapping_rate.mate2	seqdetective.nofeature_rate.mate1	seqdetective.nofeature_rate.mate2	seqdetective.sparsity.mate1	seqdetective.sparsity.mate2	seqdetective.pos_strand_rate.mate1	seqdetective.pos_strand_rate.mate2	seqdetective.readlen.mate1	seqdetective.readlen.mate2	seqdetective.judgement.mate1	seqdetective.judgement.mate2	seqdetective.judgement.reason	platform_family	instrument_generation	read_bias	selection_class	prep_kit	sc_or_bulk	tech_class	technology	tech_variant	submission.bioprojectsource.country	earliest_date	devstage_curation	devstage_curation_coarse	tissue_curation	tissue_curation_coarse
49543	SRR8937001	SRX5717514	SRS4655934	SRP162876	PRJNA493828	Ybx1 binding sites and Ybx1 binding m5C sites in zebrafish embryo sample.	GSE120646	Other	The maternal to zygotic transition MZT is a conserved and fundamental process during which the embryo undergoes dramatic reprogramming to convert maternal environment to embryonic driven programing. However how the maternally supplied transcripts are dynamically regulated during MZT remains largely unknown. Herein through genome wide profiling of RNA 5 methylcytosine m5C in zebrafish early embryos we show that m5C methylated maternal mRNAs display higher stability during MZT. We identify that the Y box binding protein 1 Ybx1 prefers to recognizing m5C modified mRNAs through p p interaction with a key residue Trp45 in its cold shock domain CSD which plays essential roles in maternal mRNA stability and early embryogenesis of zebrafish. Cooperated with an mRNA stabilizer Pabpc1a Ybx1 promotes the stability of its target mRNAs in an m5C dependent manner. Our study demonstrates a novel mechanism of RNA m5C methylation regulated maternal mRNA stability during zebrafish MZT highlighting the critical role of m5C mRNA methylation in early development. Overall design: Examination of Ybx1 binding sites and Ybx1 binding m5C sites in zebrafish embryo. RIP seq: Briefly 500 zebrafish embryos at shield stage 4 hpf were resuspended with 2 ml lysis buffer 150 mM KCl 10 mM HEPES pH 7.6 2 mM EDTA 0.5% NP 40 0.5 mM DTT 1:100 protease inhibitor cocktail 0.4 U/Î¼l RNasin by rotating at 4Â°C for 30 min and centrifuged at 15 000 g for 15 min. The supernatant was collected and pre cleared with protein A Dynabeads by rotation at 4Â°C for 1 h. 50 Î¼l pre cleared embryo lysate was saved as Input and the left were incubated with affinity purified rabbit polyclonal anti Ybx1 antibody prepared by AbMax China and 30 Î¼l Protein A Dynabeads for 4 h at 4Â°C or overnight. post washing with1 ml ice cold NT2 buffer 200 mM NaCl 50 mM HEPES pH 7.6 2 mM EDTA 0.05% NP 40 0.5 mM DTT 0.4U/Âµl RNasin for eight times and once with 1ml ice cold 1Ã— PK buffer 100 mM Tris HCl pH 7.4 50 mM NaCl 10 mM EDTA 0.2% SDS the beads was treated in 200 ul PK buffer containing 20 ul proteinase K Roche 0311582001 for 1 h at 55Â°C. The solution was collected and subjected to RNA extraction with Acid Phenol: ChCl3 pH4.34.7 and ethanol precipitation. The Input RNA was extracted by using TRIzol reagent. Both the Input and IP RNA were treated by TURBOâ„¢ DNase Invitrogen AM2238. iCLIP seq: 1000 zebrafish embryos at 4 hpf were irradiated twice with 0.8 J/cm2 Stratalinker 2400 Stratagene lysed and subjected to mild fragmentation. Crosslinked RNA protein complexes were immunoprecipated using polyclonal Ybx1 antibody Abmax and protein A dynabeads. RNA was extracted and subjected to library construction using Smarter smRNA Seq kit Takara. All the libraries were sequenced using HiSeq2500 Illumina in paired read mode creating reads with a length of 150 bp. RNA RIP BisSeq: Briefly 500 zebrafish embryos at shield stage 4 hpf were resuspended with 2 ml lysis buffer 150 mM KCl 10 mM HEPES pH 7.6 2 mM EDTA 0.5% NP 40 0.5 mM DTT 1:100 protease inhibitor cocktail 0.4 U/Î¼l RNasin by rotating at 4Â°C for 30 min and centrifuged at 15 000 g for 15 min. The supernatant was collected and pre cleared with protein A Dynabeads by rotation at 4Â°C for 1 h. 50 Î¼l pre cleared embryo lysate was saved as Input and the left were incubated with affinity purified rabbit polyclonal anti Ybx1 antibody prepared by AbMax China and 30 Î¼l Protein A Dynabeads for 4 h at 4Â°C or overnight. post washing with1 ml ice cold NT2 buffer 200 mM NaCl 50 mM HEPES pH 7.6 2 mM EDTA 0.05% NP 40 0.5 mM DTT 0.4U/Âµl RNasin for eight times and once with 1ml ice cold 1Ã— PK buffer 100 mM Tris HCl pH 7.4 50 mM NaCl 10 mM EDTA 0.2% SDS the beads was treated in 200 ul PK buffer containing 20 ul proteinase K Roche 0311582001 for 1 h at 55Â°C. The solution was collected and subjected to RNA extraction with Acid Phenol: ChCl3 pH4.34.7 and ethanol precipitation. The purified mRNA was used for RNA BisSeq library construction. Around 200 ng mRNA premixed with the in vitro transcribed Dhfr mRNA at a ratio of 300:1 Dhfr mRNA serves as methylation conversion control was fragmented to 100 nt fragments for 1 min at 90°C in 10× RNA Fragmentation Reagent Ambion then stopped by 10× RNA stop solution Ambion and precipitated with 100% ethanol. The RNA pellet was resuspended in 100 µl bisulfite solution pH 5.1 which is a 100:1 mixture of 40% sodium bisulfite Sigma and 600 µM hydroquinone Sigma and subjected to heat incubation at 75°C for 4.5 h. The reaction mixture was desalted by passing through Nanosep with 3K Omega 500/pk columns PALL Corporation with centrifugation. post washed with nuclease free water and centrifuged for five times the RNA was finally disolved in 75 ?l nuclease free water and then desulfonated by incubation with an equal volume of 1 M Tris HCl pH 9.0 at 75 °C for 1 h. post ethanol precipitation the RNA was resuspended in 11 µl of RNase free water and subjected to library construction. Reverse transcription was carried out with superscript II Reverse Transcriptase Invitrogen and ACT random hexamers. The following procedures were performed with the KAPA Stranded mRNA Seq Kit KAPA according to the manufacturer?s instructions.Libraries were sequenced using HiSeq2500 Illumina in paired read mode creating reads with a length of 125 bp.	parent bioproject:PRJNA534030			RIP 2hpf rep2	GSM3732421		source name:RIP 2hpf\|strain:AB strain\|age:2 hpf\|tissue:whole embryo\|rip antibody:rabbit polyclonal anti Ybx1 antibody	RIP 2hpf rep2	Reads were aligned to the zv9 genome assembly using TopHat v2.1.1. MACS2 v2.1.1 were used for the peak calling and peaks were annotated by applying BEDTools’ intersectBed. Genome build: zv9 Supplementary files format and content: Ybx1 binding sites in two biological replicates.	RIP 2hpf		Total RNA was isolated from zebrafish embryos harvested at different stages using TRIzol® Reagent Ambion. mRNA was extracted with using Dynabeads® mRNA Purification Kit Ambion and subjected to TURBO™ DNase Invitrogen treatment at 37°C for 30 min and ethanol precipitation. Thus purified mRNA was used for RNA BisSeq library construction. RNA was extracted and subjected to library construction using Smarter smRNA Seq kit Takara. All the libraries were sequenced using HiSeq2500 Illumina in paired read mode creating reads with a length of 150 bp.		strain:AB strain\|age:2 hpf\|tissue:whole embryo\|rip antibody:rabbit polyclonal anti Ybx1 antibody	GSM3732421	GSM3732421: RIP 2hpf rep2; Danio rerio; RIP Seq	GSM3732421		1	Total RNA was isolated from zebrafish embryos harvested at different stages using TRIzol® Reagent Ambion. mRNA was extracted with using Dynabeads® mRNA Purification Kit Ambion and subjected to TURBO™ DNase Invitrogen treatment at 37°C for 30 min and ethanol precipitation. Thus purified mRNA was used for RNA BisSeq library construction. RNA was extracted and subjected to library construction using Smarter smRNA Seq kit Takara. All the libraries were sequenced using HiSeq2500 Illumina in paired read mode creating reads with a length of 150 bp.	GEO Accession:GSM3732421	RIP-Seq	TRANSCRIPTOMIC	other	PAIRED	ILLUMINA	Illumina HiSeq 2500		SRP162876			RIP_2hpf_rep2_R1.fastq.gz RIP_2hpf_rep2_R2.fastq.gz	fastq fastq	17557024800.0	58523416.0	GSM3732421 r1	0:150 1:150	A:4454737772;C:4407385601;G:4364085079;T:4328962997;N:1853351	150	150			4454737772	4407385601	4364085079	4328962997	1853351	SRX5717514	SRS4655934	SRA786939	GEO	Beijing Institute of Genomics (BIG) of Chinese Academy of Sciences (CAS)	2	0.96216	0.96226	0.08174	0.08009	0.76907	0.77693	0.68824	0.65939	150	150	B	B	biological fallback assumption	illumina	hiseq_era	full_length	random_priming	smarter	bulk	clip	iclip		China	2019-04-22	Cleavage	Embryo	Whole Organism	All anatomical structures