Unrestricted Access
Description
The Nucleotide database is a collection of sequences from several sources, including GenBank, RefSeq, TPA and PDB. Genome, gene and transcript sequence data provide the foundation for biomedical research and discovery.
Help
All NCBI databases and databanks, as wells as items on the NCBI Bookshelf, are covered in the NCBI Helf Manual. A link is located in the footer at the bottom of each page or directly at http://www.ncbi.nlm.nih.gov/books/NBK3831/
User tools and features
Nucleotide is accessed like any other Entrez database, namely by
- querying on any word,
- restricting the query term to a certain field, or
- applying filters or properties
A Quick Start Guide for searching the database is available on the home page. It is written in an FAQ style and provides users will illustrated answers to common questions. A direct link to the guide is found at http://www.ncbi.nlm.nih.gov/books/NBK44863/ .
Dates covered
Most current information available.
Updating frequency
As new information is discovered.
Sources
PubMed, published journal literature, genetics/genomics databanks.
Type of coverage
Information from published journal literature, drug information monographs, and published reports.
Producer/content provider
National Center for Biotechnology Information (NCBI)
Vendor/electronic presentation provider
National Center for Biotechnology Information (NCBI)
Supplementary Subject(s)