How can I see low-similarity matches whe...
To see other biotech frequently asked questions,
please visit http://biotech.fyicenter.com/faq/
How can I see low-similarity matches when there are many strong hits to my query sequence?
Often, when the query is a member of a large sequence family, the summary hit list and the alignments returned only contain very high scoring hits. To look at low-similarity matches, you must increase the maximum number of results returned. On the BLAST Web pages, often it is sufficient to increase the size of the summary hit list and the number of alignments shown using the menus on the Advanced pages. However, it is possible to increase the lists even further using the Other Advanced Options box on the Advanced BLAST pages. For BLAST 2.0, "-v 2000", for example, will increase the number of descriptions returned in the summary hit list to 2000. The option "-b 2000" will similarly increase the number of alignments returned.
Other Frequently Asked Questions