Nuclear Pores (IMAGE) University of Zurich Caption The nuclear pore complex is comprised of several layered rings: the cytoplasmic ring (gold), the spoke ring within the pore (blue) and the nucleoplasmic ring (green). Credit UZH Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.