Substitution matrix: Difference between revisions

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It turns out that the BLOSUM62 matrix does an excellent job detecting similarities in distant sequences, and this is the matrix used by default in most recent alignment applications such as [[BLAST (biotechnology)|BLAST]].
 
It also turns out the BLOSUM computer code written by Henikoff and Henikoff does not exactly match the description in their paper. Surprisingly, this commonly- used "wrong" version has better search performance.<ref name=article>{{cite journal |last1=Styczynski |first1=Mark P |last2=Jensen |first2=Kyle L |last3=Rigoutsos |first3=Isidore |last4=Stephanopoulos |first4=Gregory |title=BLOSUM62 miscalculations improve search performance |journal=Nature Biotechnology |date=March 2008 |volume=26 |issue=3 |pages=274–275 |doi=10.1038/nbt0308-274 | pmid=18327232 |s2cid=205266180 }}</ref>
 
=== Differences between PAM and BLOSUM ===