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. 2020 Jan 27;219(2):e201904048. doi: 10.1083/jcb.201904048

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© 2020 Grey et al.

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Figure S4. — IRE1β interacts with IRE1α. Supports Fig. 5. IRE1α and IRE1β protein detected by immunoblot of anti-FLAG immunoprecipitated (IP) samples or total lysates from HEK293 or HEK293/IRE1α^KO cells transfected with IRE1β-FLAG expression construct. Endogenous IRE1α was detected with anti-IRE1α antibody and IRE1β was detected with anti-FLAG antibody. Blots are representative of three independent experiments.