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4 protocols using anti ero1 lα

1

ER Stress-Induced Apoptosis and Autophagy

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TBT and dimethyl sulfoxide (DMSO) were obtained from Sigma-Aldrich (St. Louis, MO, USA). Cell lysis buffer, fetal bovine serum (FBS), RPMI 1640 medium, and Western Bright Enhanced Chemiluminescence (ECL) detection reagents were obtained from Thermo Fisher Scientific (Suwanee, GA, USA). An Annexin V/PI apoptosis detection kit was purchased from Multi-Sciences (Hangzhou, China). Anti-Bip (Cat#3177), anti-Calnexin (Cat#2679), anti-Ero1-Lα (Cat#3264), anti-IRE1α (Cat#3294), anti-PDI (Cat#3501), anti-CHOP (Cat#2895), anti-PERK (Cat#5683), anti-eIF2α (Cat#5324), anti-P-eIF2α (Cat#3398), anti-Atg12 (Cat#4180), anti-Beclin-1 (Cat#3495), anti-JNK (Cat#3708), anti-P-JNK (Cat#4668), anti-LC3A/B (Cat#12741), anti-Atg5 (Cat#12994), anti-Atg16L1 (Cat#8089), anti-Atg7 (Cat#8558), anti-Atg3 (Cat#3415), anti-rabbit IgG (Cat#7074), and anti-mouse IgG (Cat#7076) were obtained from Cell Signaling Technology (Beverly, MA, USA). Anti-ATF6 (Cat#ab227830) was purchased from Abcam (Cambridge, UK) and anti-GAPDH was obtained from KangChen Biotech (Shanghai, China).
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2

Western Blot Analysis of Cellular Proteins

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Total cellular protein (10-20 μg) from each sample was separated by SDS-PAGE, transferred to PVDF membranes and subjected to Western blot analysis. Antibodies for Western blot analysis were obtained by the following commercial sources: anti-ubiquitin (Santa Cruz Biotechnology and Millipore), anti-PCNA (Abcam), anti-PARP (BD Pharmingen), anti-GRP78, anti-GCN2, anti-phospho-eIF2oc, anti-IRE1-α, anti-Ero1L-α, anti-caspase-3 (Cell Signaling), anti-β-actin (Sigma). Peroxidase-linked anti-mouse Immunoglobulin G and peroxidase-linked anti-rabbit Immunoglobulin G were from Amersham.
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3

Comprehensive Antibody Validation Protocol

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Anti-Reelin (G10; Millipore; AB_565117), anti-Flag (Sigma-Aldrich; AB_262044), anti-phosphotyrosine (4G10; Millipore; AB_916370), anti-β-actin (Sigma-Aldrich; AB_476744), anti-PA tag (AB_10920577; WAKO), anti-BIP (AB_732737; Abcam), anti-PERK (AB_10831515), anti-PDI (AB_2156433; against PDIA1), anti-Ero1-Lα (AB_823684), anti-phospho-eIF2α (AB_10692650), anti-total-eIF2α (AB_330951; Cell Signaling), and anti-V5 (AB_2556564; Invitrogen). Anti-Dab H1 antibody was a generous gift from Dr. Andre Goffinet (University of Louvain, Belgium).
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4

Protein Quantification and Western Blotting

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Protein quantification was performed using a BCA Kit. Protein lysates was subjected to SDS-PAGE and subsequently electro-transferred to a polyvinylidene fluoride membrane (Millipore). Western blotting was performed as previously described57 (link), 58 (link). The primary antibodies used were as follows (company, catalog number): anti-ATF6 (Santa Cruz, sc-22799), anti-BIP (Cell Signaling Technology, 3177), anti-P16 (BD Bioscience, 550834), anti-P21 (Cell Signaling Technology, 2947), anti-Lamin B, anti-LAP2 (BD Bioscience, 611000), anti-FOS (Cell Signaling Technology, 2250), anti-Calreticulin (Abcam, ab2907), anti-Calnexin (Cell Signaling Technology, 2679), anti-Ero1Lα (Cell Signaling Technology, 3264), anti-IRE1 (Cell Signaling Technology, 3294), anti-PDI (Cell Signaling Technology, 3501), anti-PERK (Cell Signaling Technology, 5683), anti-EMDM (Santa Cruz, sc-377394), anti-β-Actin (Santa Cruz, sc69879), anti-GAPDH (Santa Cruz, sc-25778), and anti-Flag (Sigma, F1804).
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