- Neuronal microtubule-associated protein 2D is a dual a-kinase anchoring protein expressed in rat ovarian granulosa cells. Salvador, L.M., Flynn, M.P., Avila, J., Reierstad, S., Maizels, E.T., Alam, H., Park, Y., Scott, J.D., Carr, D.W., Hunzicker-Dunn, M. J. Biol. Chem. (2004)