NCBI search options

Conducting a search in the NCBI Database from CLC Genomics Workbench corresponds to conducting the search on NCBI's website, while having the results available and ready to work with straight away.

You can choose whether you want to search for nucleotide sequences, protein sequences or EST databases.

As default, CLC Genomics Workbench offers one text field where the search parameters can be entered. Click Add search parameters to add more parameters to your search. The search is a "and" search, meaning that when adding search parameters to your search, you search for both (or all) text strings rather than "any" of the text strings.

The following parameters can be added to the search:

You can append a wildcard character by checking the checkbox at the bottom. This means that you only have to enter the first part of the search text, e.g., searching for "genom" will find both "genomic" and "genome".

A "Feature Key" option is available in GenBank when searching for nucleotide sequences: writing gene[Feature key] AND mouse will generate hits for one or more genes and where 'mouse' appears somewhere in GenBank file. For more information about how to use this syntax, see

When you are satisfied with the parameters you have entered, click Start search. When conducting a search, no files are downloaded. Instead, the program produces a list of links to the files in the NCBI database. This ensures a much faster search.