Fig. 1From: Insights into the underlying pathogenesis and therapeutic potential of endoplasmic reticulum stress in degenerative musculoskeletal diseasesMechanisms of the UPR (a) and ERAD (b) pathways. ATF4 activating transcription factor 4, ATF6 activating transcription factor 6, BiP binding immunoglobulin protein, CHOP C/EBP homologous protein, eIF2α α-subunit of eukaryotic translation initiation factor 2, ER endoplasmic reticulum, ERAD ER-associated degradation, GADD34 growth arrest and DNA damage-inducible protein 34, IRE1 inositol-requiring enzyme 1, P phosphorylated, PERK protein kinase R-like ER kinase, S1P site-1 membrane proteases, S2P site-2 membrane proteases, XBP-1 X-binding protein 1, XBP-1s spliced XBP-1, Ub ubiquitinBack to article page