NRLB to Identify Low-Affinity Binding Sites (image) The Zuckerman Institute at Columbia University Share Print E-Mail Caption Gradually eliminating low-affinity binding sites identified by NRLB (from left to right) results in a gradual reduction of gene expression (white). Credit Credit: Mann Lab/Columbia's Zuckerman Institute Usage Restrictions Please contact Zuckerman Institute Press Office for reprint permissions. Share Print E-Mail 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.