• National Center for Biotechnology Information (NCBI) Entrez Databases

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    Entrez, The Life Sciences Search Engine

    The new Entrez cross-database search page

    Entrez Gene

    Provides a unified query environment for genes defined by sequence and/or in NCBI's Map Viewer

    Entrez Genome

    Provides views for a variety of genomes, complete chromosomes, sequence maps with contigs, and integrated genetic and physical maps

    Entrez Nucleotide

    Contains sequence data from GenBank, EMBL, and DDBJ, the members of the tripartite, international collaboration of sequence databases

    Entrez PopSet

    Contains aligned sequences submitted as a set resulting from a population, phylogenetic, or mutation study

    These alignments describe such events as evolution and population variation. The PopSet database contains both nucleotide and protein sequence data.

    Extrez Protein

    Contains sequence data from the translated coding regions from DNA sequences in GenBank, EMBL, and DDBJ as well as protein sequences submitted to Protein Information Resource (PIR), SWISS-PROT, Protein Research Foundation (PRF), and Protein Data Bank (PDB) (sequences from solved structures)

    Entrez Structure

    Also Molecular Modeling Database (MMDB)Contains experimental data from crystallographic and NMR structure determinations

    The data for MMDB are obtained from the Protein Data Bank (PDB).

    Homologene, Discover Homologs

    A system for automated detection of homologs among the annotated genes of several completely sequenced eukaryotic genomes

    NCBI Map Viewer

    Supports search and display of genomic information by chromosomal position

    Regions of interest can be retrieved by text queries (e.g., gene or marker name) or by sequence alignment (BLAST)

    OMIM (Online Mendelian Inheritance in Man)

    A catalog of human genes and genetic disorders

    Single Nucleotide Polymorphism

    A central repository database for both single- base nucleotide substitutions and short-deletion and insertion polymorphisms.

    Taxonomy Browser

    Contains the names of all organisms that are represented in the NCBI genetic database by at least one nucleotide or protein sequence

    UniGene: An Organized View of the Transcriptone

    An experimental system for automatically partitioning GenBank sequences into a non-redundant set of gene-oriented clusters

    Each UniGene cluster contains sequences that represent a unique gene, as well as related information such as the tissue types in which the gene has been expressed and map location.