EntrezEntrez is a retrieval system produced by NCBI for searching several linked databases including:
◦PubMed
◦GenBank, a nucleotide sequence database
◦Protein, sequence database
◦Structure, 3-D macromolecular structures
◦Genome, complete sequences
◦PopSet, population study data sets
◦Taxonomy, organisms in GenBank
◦Online Mendelian Inheritance in Man (OMIM)
Pre-computed similarity searches are available for most database records producing a list of related sequences, structure neighbors, as well as related articles