[Biodevelopers] Large protein strings when doing BLAST?

Paul Mooney pjm at sanger.ac.uk
Mon Nov 27 04:29:16 EST 2006

On 24 Nov 2006, at 19:18, Theodore H. Smith wrote:

> How large is a "large" protein string normally when doing BLAST?
> Will do searches for protein strings say consisting of 32KB of letters?

Can you point me at a protein that has ~32k bases?
10,000 codons sounds a lot.

> Is there an upper limit? I suppose there is no real upper limit, but 
> there might be a tendency for proteins to rarely go above a certain 
> length... I am trying to design some hobbyist software in biology and 
> these sort of answers would really help my design. Excuse my lack of 
> biology background!

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