2. • ENTREZ – is a molecular biology database and retrieval system
developed by the National Center for Biotechnology Information
(NCBI).
• It is an entry point for exploring distinct but integrated databases.
• Retrieval of huge and ever increasing database is one of the
important task for users in bioinformatics.
3. Background of Entrez
• In 1991, Entrez was introduced in CD form.
• In 1993, a client-server version of the software provided connectivity
with the internet.
• In 1994, NCBI established a website, and Entrez was part of this initial
release.
• In 2001, Entrez bookshelf was release and in 2003, the Entrez Gene
database was developed.
4. Features of Entrez
• It is a molecular biology database and retrieval system
• Entrez also allows Batch downloads of large search results.
• Also known as an integrated database and its cross-referenced
• It is an entry point for exploring distinct but integrated data bases.
• Easy to use and is highly convenient
• User don’t have to visit multiple database as it displays all the links of
information on single web page
• It allows text based search for a wide variety of data , such as
annotated genetic sequence information , citations , abstract full
papers
• It uses Boolean operator
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7. How to use Entrez
• Open Google /chrome
• Type -Entrez
• Select Entrez from upper panel
• Type any biological gene or protein
• Click search
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18. References
• Entrez: Molecular Biology Database and Retrieval System, Schuler GD,
Epstein JA, Ohkawa H, Kans JA, Methods Enzymol. 266, 141-62, 1996.
(http:/www.ncbi.nlm.nih.gov/Entrez/).
• vlab.amrita.edu,. (2012). Retrieving sequence data from Entrez.
Retrieved 9th March 2024, from
vlab.amrita.edu/?sub=3&brch=273&sim=1437&cnt=2.
