To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video Video 1 Movie S1. Conformational transition in hyperpolarization-activated cyclic nucleotide-gated channel upon cAMP binding. A morph of two structural models derived from DEER data based on the elastic-network model is shown. Double electron–electron resonance reveals cAMP-induced conformational change in HCN channels Michael C. Puljung, Hannah A. DeBerg, William N. Zagotta, and Stefan Stoll PNAS. 2014. 111:9816-9821 DOI: 10.1073/pnas.1405371111 Download Original Video Browse All Videos »