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The Reference Sequence (RefSeq) database [1] is an open access, annotated and curated collection of publicly available nucleotide sequences (DNA, RNA) and their protein products. RefSeq was introduced in 2000.
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The first printout of the human reference genome presented as a series of books, displayed at the Wellcome Collection, London. A reference genome (also known as a reference assembly) is a digital nucleic acid sequence database, assembled by scientists as a representative example of the set of genes in one idealized individual organism of a species.
NCBI provides the Gene database, Online Mendelian Inheritance in Man, the Molecular Modeling Database (3D protein structures), dbSNP (a database of single-nucleotide polymorphisms), the Reference Sequence Collection, a map of the human genome, and a taxonomy browser, and coordinates with the National Cancer Institute to provide the Cancer ...
Checks for a start or stop codon in the reference genome sequence Internal stop: Checks for the presence of an internal stop codon in the genomic sequence NCBI:Ensembl protein length different: Checks if the protein encoded by the NCBI RefSeq is the same length as the EBI/WTSI protein NCBI:Ensembl low percent identity
the NIH protein database, a collection of sequences from several sources, including translations from annotated coding regions in GenBank, RefSeq and Third Party Annotation, as well as records from SwissProt, PIR, PRF, and PDB Proteopedia the collaborative, 3D encyclopedia of proteins and other molecules.
Having a reference genome around is convenient because then instead of storing the nucleotide sequences themselves, one can just align the reads to the reference genome and store the positions (pointers) and mismatches; the pointers can then be sorted according to their order in the reference sequence and encoded, e.g., with run-length encoding.
Locus Reference Genomic (LRG) records have unique accession numbers starting with LRG_ followed by a number. They are recommended in the Human Genome Variation Society Nomenclature guidelines as stable genomic reference sequences to report sequence variants in LSDBs and the literature.