Range: ±5 nm
||Budding yeast Saccharomyces cerevisiae
||Bernales S, McDonald KL, Walter P. Autophagy counterbalances endoplasmic reticulum expansion during the unfolded protein response. PLoS Biol. 2006 Nov4(12):e423. p.2313 left columnPubMed ID17132049
||Thin section electron microscopy
||"The spacing between ER membranes was significantly increased in the expanded unfolded protein response (UPR)-induced ER (ER membrane distance=31±5nm in control cells versus 48±6nm in UPR-induced cells)."