The invention provides isolated nucleic acid molecules, designated 52908 nucleic acid molecules, which encode novel 52908-related potassium channel molecules. Such compounds have enhanced water solubility and have activity as SHIP1 modulators, and thus may be used to treat any of a variety of diseases, disorders or conditions that would benefit from SHIP1 modulation. A second inverter outputs a power up signal after receiving the low level signal from the first inverter. In a first step, the radio network node transmits the reference signal over a first CDM subgroup using an orthogonal cover code.