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Phylogenetic tree of DEAH-box proteins. Neighbor joining phylogram of the conserved region of 18 DEAH-box proteins. The region used to generate this phylogram lies between the two arrows in Fig. 3. The phylogram was obtained by the clustal method in the DNAstar DNA analysis package. Similar results were obtained with an uncorrected distance matrix using the pileup algorithm (GCG, Madison, WI).
