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We are still working on this page. Tools will be added and opened gradually until the end of August, the date of the first complete version. You can find more about the schedule in "what's next ?" |
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Fitch/extended
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Kitch/89
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Kitch/extended
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PileUp/89
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PileUp/extended
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Make your own phylogenic tree of S1 serine proteases A phylogenetic tree of 89 S1 serine proteases was built by Krem et al. (1999, JBC, in press) from residues 16 to 245 according to the chymotrypsin numbering. Original sequences were culled from GenBank. 89 non-redundant sequences were selected and aligned by Clustal-W 1.7. Protein distance matrices were calculated with PROTDIST from the PHYLIP package. Unrooted trees were built using the Fitch-Margoliash method with the PHYLIP program FITCH 3.572c. Distances from PRODIST are available here. Now you can select sequences in the tree (all are selected by default) then specified the residues to take into account in the clustal multi-alignment using chymotrypsin as reference. You may submit this new subset to PROTDIST to calculate a new distance matrix then build a tree with FITCH or KITCH.
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Thierry Rose, PhD and Enrico
Di Cera, MD |
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