The invention provides isolated nucleic acids molecules, designated 38692 or 21117 nucleic acid molecules, which encode novel dual specificity phosphatase family members. The leg-holes are surrounding by leg-surrounding flaps extending in a leg-surrounding direction outside transversely opposite side edges of the first panel. Next, a silicon-germanium layer is deposited on the substrate and the portion of the silicon-germanium layer adjacent the mesa is removed to form the silicon-germanium base.