The PolyATtract® mRNA Isolation Systems use the MagneSphere® technology to isolate mRNA rapidly and effectively from total RNA. The systems use a biotinylated oligo(dT) primer to hybridize, at high efficiency in solution, to the 3´ poly(A)+ region present in most mature eukaryotic mRNAs. The hybrids are bound to streptavidin coupled to paramagnetic particles, captured using a magnetic separation stand and washed at high stringency. The highly pure mRNA is eluted from the solid phase by the simple addition of ribonuclease-free, deionized water. With total RNA as the starting material, poly(A)+ mRNA is isolated in approximately 45 minutes. The isolated mRNA is suitable for all molecular biology applications, including in vitro translation and cDNA synthesis.