Entrez Gene is a searchable database of genes, from RefSeq genomes, and defined by sequence and/or located in the NCBI Map Viewer

Online text-based search and retrieval system used at NCBI for finding nucleic acids by keywords, id number, database number, etc.

UniGene: An Organized View of the Transcriptome. Each UniGene entry is a set of transcript sequences that appear to come from the same transcription locus (gene or expressed pseudogene), together with information on protein similarities, gene expression, cDNA clone reagents, and genomic location.

The EMBL Nucleotide Sequence Database (also known as EMBL-Bank) constitutes Europe's primary nucleotide sequence resource.

An online launcher for varied sequence anlaysis including homology search, alignment, structure prediction, and varied utilities such as primers or sequence conversion.

The system allows the user to search globally across all EBI databases or individually in selected resources by using an Advance search.

The Integr8 web portal provides easy access to integrated information about deciphered genomes and their corresponding proteomes. Available data includes DNA sequences (from databases including the EMBL Nucleotide Sequence Database, Genome Reviews, and Ensembl); protein sequences (from databases including the UniProt Knowledgebase and IPI); statistical genome and proteome analysis (performed using InterPro, CluSTr, and GOA); and information about orthology, paralogy, and synteny.

The Sequence Retrieval System is a search tool to do a fast full text search in different databases including the EMBL DNA database.

MRS: A fast and compact retrieval system for biological data.

DBGET is an integrated database retrieval system for handling the web of molecular biology databases