Rods isolated from the retina (IMAGE) University of Barcelona Caption Rods (type of photoreceptor) isolated from the retina of a control mouse (Atxn3 +/+) and a mouse with the silenced gene Atxn3 (Atxn3-/-). We can see the elongation of the external segment or neurosensorial cilium (OS plus CC) when there is no ATXN3 protein. Credit Credit: V. Toulis et al./ Cell Reports Usage Restrictions You may state that the image may only be used with appropriate caption or credit. 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.