| Run | Spots | Bases | Size | GC content | Published | Access Type |
|---|---|---|---|---|---|---|
SRR5867218 |
17.7M | 2.7Gbp | 1.4G | 48.1% | 2018-07-26 | public |
This run has 2 reads per spot:
| L=76, 100% | L=76, 100% |
- Legend
Technical read Application Read L=4, 100% Length is 4, 100% spots contain this read ̅L=165, σ=92.8, 66% Average length is 165, standard deviation is 92.8, 66% spots contain this read
| Experiment | Library Name | Platform | Strategy | Source | Selection | Layout | Action |
|---|---|---|---|---|---|---|---|
| SRX3034946 | Illumina | RNA-Seq | TRANSCRIPTOMIC | cDNA | PAIRED |
| Biosample | Sample Description | Organism | Links |
|---|---|---|---|
| SAMN07414643 (SRS2383480) | Solea senegalensis | PRJNA395771 |
| Bioproject | SRA Study | Title |
|---|---|---|
| PRJNA395771 | SRP113561 | Transcriptomic profiles of Senegalese sole in response to infection with different reassortant strains of betanodavirus |
Betanodaviruses (VNNV) are the causative agents of the viral nervous necrosis, a disease that affects cultured Senegalese sole (Solea senegalensis). VNNV reassortant strains, combining genomic segments from the RGNNV and SJNNV genotypes, have previously been isolated from wild and farmed several fish species. The wild reassortant wSs160.03 isolated from sole has been proved to be more virulent for sole than the parental genotypes (RGNNV and SJNNV), causing 100% mortality. Mutations of wSs160.03 strain performed by reverse genetic, have allow to obtain a mutant reassortant strain (rSs160.03247+270) with mutations at amino acids 247 (serine to alanine) and 270 (serine to asparagine), which provoke a 40% decreased mortality. In the current study, the RNA-Seq technology has been used to compare the Senegalese sole transcriptomes in two organs (head-kidney and eye/brain) after infection with the wild reassortant strain and the mutant reassortant strain. A total of 633 genes were differentially expressed (DEGs) in animals infected with the wSs160.03 strain, whereas only 393 genes were differentially expressed in animals infected with the rSs160.03247+270 strain, indicating a 37.9% decrease in the number of DEGs after infection with the mutated reassortant strain. An inversion in the proportion of genes up/down-regulated in nervous tissue of these animals was also obtained for both reassortants. To understand the biological functions of identified DEGs involved in VNNV infection, a gene ontology (GO) enrichment analysis was performed with fold change > 1.5 (up- or down-regulated) and p-value < 0.05. Different profiles of GO were obtained in the subclasses biological process, cellular component, and molecular function for each reassortant strains. Regarding the immune response, genes coding for proteins acting as mediators of IFN type I expression (DHX58, IRF3, IRF7) and IFN-stimulated genes (ISG15, Mx, PKR, Gig1, ISG12, IFI44, IFIT-1, to name a few) were up-regulated in animals infected with the wild type reassortant, whereas no-differential expression of these genes was observed in animals infected with the mutant reassortant. The different transcriptomic profiles obtained could help to better understand VNNV pathogenesis in Senegalese sole, setting up the importance as virulence determinants of amino acids at positions 247 and 270 within the RNA2 segment. Overall design: Evaluation of amino acid positions 247 and 270 of the capsid protein as virulence determinants of VNNV.
SRA archive data
SRA archive data is normalized by the SRA load process and used by the SRA Toolkit to read and produce formats like FASTQ, SAM, etc. The default toolkit configuration enables it to find and retrieve SRA runs by accession.
Public SRA files are now available from GCP and AWS cloud platforms as well as from NCBI. Access to most data in the cloud requires a user account with the cloud service provider. The user’s account will incur costs for cloud compute or to copy data outside of the specified cloud service region.
| Type | Size | Location | Name | Free Egress | Access Type |
|---|---|---|---|---|---|
| SRA Lite | 696,946 Kb | NCBI | https://sra-downloadb.be-md.ncbi.nlm.nih.gov/sos5/sra-pub-zq-14/SRR005/867/SRR5867218.sralite.1 | worldwide | anonymous |
| AWS | s3://sra-pub-zq-5/SRR5867218/SRR5867218.sralite.1 | s3.us-east-1 | aws identity | ||
| GCP | gs://sra-pub-zq-107/SRR5867218/SRR5867218.zq.1 | gs.us-east1 | gcp identity | ||
| SRA Normalized | 1,333,141 Kb | AWS | https://sra-pub-run-odp.s3.amazonaws.com/sra/SRR5867218/SRR5867218 | worldwide | anonymous |
Original format
The original files submitted to SRA. These files may require specific software to open, read and interpret data.
| Type | Size | Location | Name | Free Egress | Access Type |
|---|---|---|---|---|---|
| fastq | 888,920 Kb | AWS | s3://sra-pub-src-4/SRR5867218/C9JGHANXX_2_20_2.fastq.gz | - | Use Cloud Data Delivery |
| fastq | 852,352 Kb | AWS | s3://sra-pub-src-5/SRR5867218/C9JGHANXX_2_20_1.fastq.gz | - | Use Cloud Data Delivery |
- Egress and Access: what does it mean?
-
Egress
term used by cloud providers to describe cost (charged to the user) of moving data outside of the storage region Free Egresscolumn indicates where the data can be accessed without an egress charge: - worldwide can be downloaded from anywhere for free
- s3.us-east-1 is free to access from machines running in Amazon's us-east-1 region, access from other regions or transport outside of AWS will require paying egress charges
- gs.US is free to access from machines running in Google’s gs.US region, access from other regions or transport outside of GCP will require paying egress charges
Access Typedescribes whether a cloud service user account is necessary for data access. "anonymous" access means general public access Namecolumn provides either a link to free download location at NCBI or a URL for the cloud provider storage location. Either s3:// for Amazon or gs:// for Google storage
- Why is SRA data in the cloud?
-
In order to support large scale (hyper parallel) data analyses SRA data is now available at GCP and AWS with few caveats:
- SRA data is copied to the cloud from NCBI. There may be a lag between availability from NCBI and from CSP (cloud service providers)
- To access public data user account with the cloud service provider is required. Your account will incur costs for cloud compute and/or to copy data (either archival or results of your comute) outside of the specified cloud service region
- Distribution of protected data is signed by NIH account and requires user to operate in the same region as the data
SRA has also begun to provide access to originally submitted source files:
- not all files have been validated by SRA
- not all files have been copied to cloud locations (recovering it from NCBI tape system takes time ).
- the volume of this type of data a much larger and it is not used as often so we will keep most of it on tape or "cold" storage in cloud. As a result the data may not be available instantly and restore requests will be served on first-come first-served basis and cost of resore may be charged to your user account.
- What is "Cloud Data Delivery"?
-
Please visit SRA Data Delivery service to request Sequence Read Archive (SRA) data to be delivered to an Amazon Web Services (AWS) or Google Cloud Platform (GCP) bucket of your choice.
Taxonomy Analysis
- Unidentified reads: 67.63%
- Identified reads: 32.37%
Strong signals
| SuperKingdom | Organism | Rank | %% | Kbp | Coverage |
|---|---|---|---|---|---|
| Eukaryota | Cyprinodontiformes | order | 8.5 | 228,865 | |
| Eukaryota | Pseudocrenilabrinae | subfamily | 7.5 | 201,703 | |
| Eukaryota | Larimichthys crocea | species | 6.6 | 177,814 | |
| Eukaryota | Lates calcarifer | species | 2.9 | 77,436 | |
| Eukaryota | Stegastes partitus | species | 2.4 | 65,803 | |
| Eukaryota | Notothenia coriiceps | species | 1.4 | 36,905 | |
| Eukaryota | Cynoglossus semilaevis | species | 0.9 | 22,999 | |
| Eukaryota | Esox lucius | species | 0.6 | 17,464 | |
| Eukaryota | Salmo salar | species | 0.6 | 16,914 |
- How to read results?
Results show distribution of reads mapping to specific taxonomy nodes as a percentage of total reads within the analyzed run. In cases where a read maps to more than one related taxonomy node, the read is reported as originating from the lowest shared taxonomic node. So when a read maps to two species belonging to the same genus, it is assigned at the genus level. Sequence reads from a single organism will map to several taxonomy nodes spanning the organism’s lineage. The number of reads mapping to higher level nodes will typically be greater than those that map to terminal nodes.
STAT results are proportional to the size of sequenced genomes. Given a mixed sample containing several organisms at equal copy number, proportionally more reads originate from the larger genomes. This means that the percentages reported by STAT will reflect genome size and must be considered against the genomic complexity of the sequenced sample.
- How can I query this analysis data?
Please take a look at NCBI SRA Cloud-based Taxonomy Analysis Table