correlation %identities - %positives blastx?

Jeroen Raes jerae at gengenp.rug.ac.be
Tue Aug 22 19:32:25 EST 2000

Hi all,

I would like to know whether there is an approximate, mean (being
careful here) correlation between the percentage of positive AAs and
identical AAs in a blastx hit. 
In other words: can I have an approximate idea of the % of positive AAs
if I know the % of identical AAs?

I realise that this depends on the kind/base composition/.. of the
sequence you are working on, but its just to have a starting point.

Any ideas on whether this might be possible? Or am I talking complete
rubbish here?




Jeroen Raes
Research group of Bioinformatics
Department of Plant Genetics   Tel:32.9.264 87 20   Fax:32.9.264 50 08
University of Ghent, K.L. Ledeganckstraat 35, B-9000 GENT, Belgium
Laboratoire Associe de l'INRA
Vlaams interuniversitair Instituut voor Biotechnologie (VIB)
jerae at gengenp.rug.ac.be         http://www.plantgenetics.rug.ac.be

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