Extended Data Fig. 5: The ratio of AMP to ATP decreased in PN cells.

a, HPLC analysis of total AMP and ATP concentrations from PH and PN cell perchlorate extracts. b, The ratio of AMP to ATP in PH and PN cells (n = 3 biologically independent experiments). Data are represented as means ± s.e.m., analysed by unpaired two-sided Student’s t-test, **P = 0.0073.