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Biological Sciences Websites
Entrez
Entrez is NCBI’s primary text search and retrieval system that integrates the PubMed database of biomedical literature with 38 other literature and molecular databases including DNA and protein sequence, structure, gene, genome, genetic variation and gene expression.
Entrez Help Page
This document is an overview of the Entrez databases, with general information on searching and displaying data. More detailed help is available for the individual Entrez databases in the NCBI Help Manual sections on the NCBI bookshelf.
National Center for Biotechnology Information (NCBI)
The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information.
