PikA (IMAGE) University of California - San Diego Caption A graphic image of PicA, a key component of jumbo phage that coordinates protein trafficking across the protective shell of the phage nucleus. Credit Pogliano Labs, UC San Diego Usage Restrictions Must be used in conjunction with PicA paper in PNAS. License Original 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.