The atypical 'hippocampal' glutamate receptor coupled to phospholipase D that controls stretch-sensitivity in primary mechanosensory nerve endings is homomeric purely metabotropic GluK2. - Thompson KJ; Watson S; Zanato C; Dall'Angelo S; De Nooij JC; Pace-Bonello B; Shenton FC; Sanger HE; Heinz BA; Broad LM; Grosjean N; McQuillian JR; et al. (Experimental physiology, 2024)