Salk science image (IMAGE) Salk Institute Caption Caption: A structural snapshot of a phosphohistidine analogue (ball and stick model) nestled at the interface between different areas (green, brown) of a phosphohistidine antibody. Such structures provide insights into the molecular properties of the antibodies, which makes them useful for revealing elusive phosphohistidine-containing proteins in cells. Credit Salk Institute Usage Restrictions with credit and related coverage. 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.