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Annotation projects often rely on previous annotations of an organism's genome; however, these older annotations may contain errors that can propagate to new annotations. As new genome analysis technologies are developed and richer databases become available, the annotation of some older genomes may be updated.
The journal Nucleic Acids Research regularly publishes special issues on biological databases and has a list of such databases. The 2018 issue has a list of about 180 such databases and updates to previously described databases. [2] Omics Discovery Index can be used to browse and search several biological databases.
View all genes annotated a term, for example cytokinesis; View all annotations created from a specific reference, for example 26776736 Chica et al. 2016; Genome-wide datasets (including protein datasets, all annotations, manually curated ortholog lists etc) can be accessed from the datasets page. Datasets suitable for display in a genome ...
Genome sequence annotations Location of genes and regulatory regions in the genome; Functional curation of gene products Discern functions fulfilled by the gene product by looking at a variety of data including Gene Ontology (GO) annotations, phenotypes, gene expression, pathway information; Protein/RNA sequence annotations; Anatomical information
Karyotype visualisation in Ensembl Genomes. The key feature of Ensembl Genomes is its graphical interface, which allows users to scroll through a genome and observe the relative location of features such as conceptual annotation (e.g. genes, SNP loci), sequence patterns (e.g. repeats) and experimental data (e.g. sequences and external sequence features mapped onto the genome). [1]
However the genome alone is of little use, unless the locations and relationships of individual genes can be identified. One option is manual annotation, whereby a team of scientists tries to locate genes using experimental data from scientific journals and public databases. However this is a slow, painstaking task.
MANE (Matched Annotation from the NCBI and EMBL-EBI): It is a collaborative project between NCBI and EMBL-EBI whose main goal is to define a set of transcripts and their proteins for all the protein-coding genes in the human genome. By doing that, the differences in transcripts annotation between RefSeq and Ensembl/GENCODE annotation systems ...
The Gene Ontology (GO) is a major bioinformatics initiative to unify the representation of gene and gene product attributes across all species. [1] More specifically, the project aims to: 1) maintain and develop its controlled vocabulary of gene and gene product attributes; 2) annotate genes and gene products, and assimilate and disseminate annotation data; and 3) provide tools for easy access ...