Dharmacon said this week that it has expanded its SiArray small interfering RNA library product to include nine new gene family siRNA libraries and six new library subsets.

The siRNA libraries target genes encoding protein kinases, G-protein coupled receptors, ion channels, phosphatases, cytokine receptors, nuclear receptors, or hydroxylases, and those involved in key pathways such as apoptosis, insulin signaling, and cell cycle regulation, said Dharmacon. The subsets target protein kinases covering specific families such as tyrosine and MAP kinases.