Identifizierung und Charakterisierung eines neuen PABP-interagierenden Proteins, Makorin RING-Zinkfinger Protein 1 (MKRN1) in Neuronen,Identification and Characterization of a Novel PABP-interacting Protein, Makorin Ring Zinc Finger Protein 1 (MKRN1) in Nerve Cells