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Entrez. The Entrez ( IPA: [ɒnˈtreɪ]) [1] Global Query Cross-Database Search System is a federated search engine, or web portal that allows users to search many discrete health sciences databases at the National Center for Biotechnology Information (NCBI) website. [2] The NCBI is a part of the National Library of Medicine (NLM), which is ...
Sequence Read Archive. The Sequence Read Archive ( SRA, previously known as the Short Read Archive) is a bioinformatics database that provides a public repository for DNA sequencing data, especially the "short reads" generated by high-throughput sequencing, which are typically less than 1,000 base pairs in length. [1]
Conserved Domain Database. Conserved Domain Database for the functional annotation of proteins. The Conserved Domain Database ( CDD) is a database of well-annotated multiple sequence alignment models and derived database search models, for ancient domains and full-length proteins. [1]
In genetics, an expressed sequence tag ( EST) is a short sub-sequence of a cDNA sequence. [1] ESTs may be used to identify gene transcripts, and were instrumental in gene discovery and in gene-sequence determination. [2] The identification of ESTs has proceeded rapidly, with approximately 74.2 million ESTs now available in public databases (e.g ...
PubChem is a database of chemical molecules and their activities against biological assays. The system is maintained by the National Center for Biotechnology Information (NCBI), a component of the National Library of Medicine, which is part of the United States National Institutes of Health (NIH). PubChem can be accessed for free through a web ...
The genome browser is an important tool for studying the genome. In bioinformatics, a genome browser is a graphical interface for displaying information from a biological database for genomic data. [2] It is a software tool that displays genetic data in graphical form. Genome browsers enable users to visualize and browse entire genomes with ...
In bioinformatics and biochemistry, the FASTA format is a text-based format for representing either nucleotide sequences or amino acid (protein) sequences, in which nucleotides or amino acids are represented using single-letter codes. The format allows for sequence names and comments to precede the sequences.
The Epigenomics database. The Epigenomics database of the National Center for Biotechnology Information (NCBI) at the National Institutes of Health (NIH) was launched in June 2010 as a means to collect maps of epigenetic modifications and their occurrence across the human genome. [2] This database provides a publicly available resource for maps ...