UNIT 1.3 Searching the NCBI Databases Using Entrez
Published Online: 1 NOV 2002
Copyright © 2003 by John Wiley and Sons, Inc.
Lab Protocol Title
Current Protocols in Bioinformatics
How to Cite
Murphy, J. and Baxevanis, A. D. 2002. Searching the NCBI Databases Using Entrez. Current Protocols in Bioinformatics. 1:1.3.
- Published Online: 1 NOV 2002
- Published Print: JAN 2003
This is not the most recent version of the article. View current version (1 JUN 2011)
One of the most widely-used interfaces for the retrieval of information from biological databases is the NCBI Entrez system. Entrez capitalizes on the fact that there are pre-existing, logical relationships between the individual entries found in numerous public databases. The existence of such natural connections, mostly biological in nature, argued for the development of a method through which all the information about a particular biological entity could be found without having to sequentially visit and query disparate databases. Two Basic Protocols describe simple, text-based searches, illustrating the types of information that can be retrieved through the Entrez system. An Alternate Protocol builds upon the first Basic Protocol, using additional, built-in features of the Entrez system, as well as providing alternative ways to issue the initial query. The Support Protocol reviews how to save frequently-issued queries.