cellular component maintenance endoplasmic reticulum tubular network organization endoplasmic reticulum tubular network maintenance mah biological_process 2010-09-01T01:55:06Z The organization process that preserves the endoplasmic reticulum (ER) tubular network in a stable functional or structural state. The ER tubular network is the ER part that comprises the membranes with high curvature in cross-section. GO:0071788 ER tubular network maintenance