Fig. 4From: Identification and in silico analysis of cattle DExH/D box RNA helicasesPhylogenetic analysis of RNA helicases from cattle, pig, horse and sheep. a and b represent DEAD box and DEAH box helicases from four species respectively. DEAD and DEAH amino acid sequences were aligned with ClustalW, and phylogenetic tree was constructed using the neighbour joining method in MEGA 5.0 softwareBack to article page