confused on megablast

[gigigou]

I'm using mirTools which requests megablast. I serched on the internet, but can not find megablast anywhere.
I'm confusing that is megablast a tool or anything else?
Could anyone tell me where can I get megablast.
Many thanks!

[rhinoceros]

Megablast is a part of ncbi blast..

[mastal]

confused on megablast

megablast is one of the options in blast.

if you want a commandline version, you can download blast+ from ncbi.

ttp://blast.ncbi.nlm.nih.gov/Blast.cgi?CMD=Web&PAGE_TYPE=BlastDocs&DOC_TYPE=Download

manuals for commandline blast+ are here:

http://www.ncbi.nlm.nih.gov/books/NBK1762/

[A.N.Other]

As above, megablast is a search algorithm implemented by in the NCBI BLAST+ tools. It's the default algorithm used in BLASTn, in fact, rather than 'blastn' itself.

[gigigou]

Many thanks to rhinoceros, mastal and A.N.Other!