Up next in Data Management & Storage (25 videos)
Organize your online information with the data management and storage tips in this Howcast video series.
You Will Need
- Internet access
Go to the NCBI website
Go to the National Center for Biotechnology Information website to find out what NCBI is. The NCBI databases are a division of the National Library of Medicine -- part of the U.S. Government’s National Institutes of Health.
Go to the Entrez tutorial
Go to the Entrez tutorial. Entrez is NCBI’s cross-database search tool. The tutorial offers an overview of doing a global search of NCBI’s multiple databases.
Go to the Entrez search system
Go to the Entrez search system website to search major databases, including PubMed, Protein and Nucleotide Sequences, Protein Structures, and Complete Genomes.
Enter a term in Entrez’s search slot
Enter a term, such as "bacteria" into the search slot, and click the Go button to do a text-based search of all NCBI databases. Explore the search results.
Focus your Entrez search
Focus your search. For example, use Entrez’s Nucleotide database: Click the Limits tab; select a specific search field, such as "Author," "Journal," or "Protein Name," or select a molecule type or gene location. Then click Go.
Explore articles in the search results
Explore articles in the search results. Read an article by clicking on its link. Article details can include authors, definitions, and sequence numbers.
Analyze the database info using BLAST
Analyze the database information using BLAST, another NCBI search tool. BLAST compares similarities between gene sequences and helps identify gene family members.