structure of human hcn1 channel in a hyperpolarized conformation

activated background biochemistry biology biomolecule breast cartoon cation chain channel chemistry coil color computer conformation control dimensional gated gaussian generated graphic green hcn1 health heart helix hippocampus human hyperpolarized illustration ion isolated medicine model molecule neocortex nucleotide potassium protein quaternary ribbon science secondary shape sheet sodium strand structure surface template tertiary tetramer three white