From Wikipedia,
the free encyclopedia.
The Entrez Global Query
Cross-Database Search System
allows access to databases at the
National Center for Biotechnology
Information (NCBI) website.
NCBI is part of the
National Library of Medicine (NLM),
itself a department of the
National Institutes of Health
(NIH).
Searching
Entrez is a powerful
search engine that can be
applied to any of the large
databases maintained by the NCBI.
These include:
The Entrez system can provide
views of
gene and
protein sequences and
chromosome maps. Entrez can
efficiently retrieve related
sequences, structures, and
references. Some textbooks are
also available online through the
Entrez system. Entrez Global Query
is an integrated search and
retrieval system that provides
access to all databases
simultaneously.
Genbank
Main article:
GenBank
The NCBI has had responsibility
for making available the GenBank
DNA
sequence database since 1992.
GenBank coordinates with
individual laboratories and other
sequence databases such as those
of the European Molecular Biology
Laboratory and the DNA Database of
Japan.
Since
1992, NCBI has grown to
provide other databases in
addition to GenBank. NCBI provides
Online Mendelian Inheritance in
Man, the Molecular Modeling
Database (3D protein structures),
the Unique Human Gene Sequence
Collection, a Gene Map of the
Human genome, a Taxonomy
Browser, and coordinates with the
National Cancer Institute to
provide the Cancer Genome Anatomy
Project.
The NCBI has software tools
that are available by
WWW browsing or by FTP. For
example,
BLAST is a sequence similarity
searching program. BLAST can do
sequence comparisons against the
GenBank DNA database in less than
15 seconds.
NLM Catalog
The NLM Catalog provides access
to NLM bibliographic data for over
1.2 million journals, books,
audiovisuals, computer software,
electronic resources, and other
materials via the NCBI Entrez
retrieval system. Updated every
weekday, the NLM Catalog is an
alternative search interface to
the bibliographic records resident
in LocatorPlus.
