[biological_process] brown fat cell differentiation <sep> cell redox homeostasis <sep> cellular response to hypoxia <sep> chaperone cofactor-dependent protein refolding <sep> collagen fibril organization <sep> endoplasmic reticulum unfolded protein response <sep> extracellular matrix organization <sep> intrinsic apoptotic signaling pathway in response to endoplasmic reticulum stress <sep> L-ascorbic acid metabolic process <sep> protein folding <sep> protein folding in endoplasmic reticulum <sep> protein maturation by protein folding <sep> release of sequestered calcium ion into cytosol <sep> response to endoplasmic reticulum stress <sep> response to oxidative stress <sep> skeletal muscle tissue development <sep> transforming growth factor beta receptor signaling pathway