Ontology highlight
ABSTRACT:
PROVIDER: PRJNA808629 | ENA |
REPOSITORIES: ENA
Dataset's files
| Action | DRS | |||
|---|---|---|---|---|
| SRR18078728_1.fastq.gz | Fastqsanger.gz | |||
| SRR18078728_2.fastq.gz | Fastqsanger.gz | |||
| SRR18078729_1.fastq.gz | Fastqsanger.gz | |||
| SRR18078729_2.fastq.gz | Fastqsanger.gz | |||
| SRR18078730_1.fastq.gz | Fastqsanger.gz |
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Project description:This SuperSeries is composed of the following subset Series:; GSE4263: P18 mouse non-deprived vs. deprived visual cortex; GSE4264: P24 mouse non-deprived vs. deprived visual cortex; GSE4265: P46 mouse non-deprived vs. deprived visual cortex; GSE4266: P104 mouse non-deprived vs. deprived visual cortex; GSE4267: P46DR (dark reared) mouse non-deprived vs. deprived visual cortex Experiment Overall Design: Refer to individual Series
2008-06-13 | E-GEOD-4269 | biostudies-arrayexpress
Project description:The retina is a delicate tissue that detects light, converts photochemical energy into neural signals, and transmits the signals to the visual cortex of the brain. A detailed protein inventory of the proteome of the normal human eye may provide a foundation for new investigations into both the physiology of the retina and the pathophysiology of retinal diseases. To provide an inventory, proteins were extracted from five retinas of normal eyes and fractionated using SDS-PAGE. After in-gel digestion, peptides were analyzed in duplicate using LC-MS/MS on an Orbitrap Elite mass spectrometer. A total of 3,436 non-redundant proteins were identified in the human retina, including 20 unambiguous protein isoforms, of which 8 have not previously been demonstrated to exist at the protein level. The proteins identified in the retina included most of the enzymes involved in the visual cycle and retinoid metabolism. One hundred and fifty-eight proteins that have been associated with age-related macular degeneration were identified in the retina. The MS proteome database of the human retina may serve as a valuable resource for future investigations of retinal biology and disease.
2014-11-27 | PXD001242 | Pride
Project description:The basic plan of the retina is conserved across vertebrates, yet species differ profoundly in their visual needs (Baden et al., 2020). One might expect that retinal cell types evolved to accommodate these varied needs, but this has not been systematically studied. Here, we generated and integrated single-cell transcriptomic atlases of the retina from 17 species: humans, two non-human primates, four rodents, three ungulates, opossum, ferret, tree shrew, a teleost fish, a bird, a reptile and a lamprey. Molecular conservation of the six retinal cell classes (photoreceptors, horizontal cells, bipolar cells, amacrine cells, retinal ganglion cells [RGCs] and Müller glia) is striking, with transcriptomic differences across species correlated with evolutionary distance. Major subclasses are also conserved, whereas variation among types within classes or subclasses is more pronounced. However, an integrative analysis revealed that numerous types are shared across species based on conserved gene expression programs that likely trace back to the common ancestor of jawed vertebrates. The degree of variation among types increases from the outer retina (photoreceptors) to the inner retina (RGCs), suggesting that evolution acts preferentially to shape the retinal output. Finally, we identified mammalian orthologs of midget RGCs, which comprise >80% of RGCs in the human retina, subserve high-acuity vision, and were believed to be primate-specific (Berson, 2008); in contrast, the mouse orthologs comprise <2% of mouse RGCs. Projections both primate and mouse orthologous types are overrepresented in the thalamus, which supplies the primary visual cortex. We suggest that midget RGCs are not primate innovations, but descendants of evolutionarily ancient types that decreased in size and increased in number as primates evolved, thereby facilitating high visual acuity and increased cortical processing of visual information.
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