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Databases and Systems

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the user can visualize all the annotations associated to these sequences. Similarly, one<br />

can select from the tree the genes to be displayed in the multiple alignment.<br />

Alignments between selected genes are not computed ab initio, but reconstructed<br />

from the whole family multiple alignment (which is almost instantaneous).<br />

WWW server<br />

We have developed a WWW interface that allows one to query HOVERGEN <strong>and</strong> to<br />

download multiple alignments <strong>and</strong> phylogenetic trees through INTERNET<br />

(http://acnuc.univ-lyonl.fr/start.html) [24]. We also provide dedicated helper<br />

applications to directly visualize alignments <strong>and</strong> phylogenetic trees from the Web<br />

browser application. Although this server does not provide all the facilities of the<br />

graphical interface, it is useful for those who cannot install HOVERGEN on their<br />

local computer.<br />

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