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7 protocols using anti gw182

1

Characterization of Ago1x Antibody Specificity

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Polyclonal anti‐Ago1x antibody was generated in rabbit against the unique peptide sequence, RQNAVTSLDRRKLSKP, and was affinity‐purified (Pierce Biotechnology). To confirm the specificity, the anti‐Ago1x antibody was incubated with the same peptide at a final concentration of 1 μg/ml for 2 h with gentle agitation at room temperature before using it for Western blot (described below). Anti‐Ago1 antibody (Cell Signaling Technologies, 9388; Sigma, SAB4200065), anti‐Dicer (Sigma, SAB4200087), anti‐HA (Sigma, clone 3F10, 11867423001; and Cell Signaling Technology, clone 6E2, 2367), anti‐GW182 (Bethyl Laboratories, A302‐329A), anti‐puromycin (Merck Millipore, clone 12D10, MABE343), anti‐Myc (Cell Signaling Technologies, 22725), anti‐FLAG (Sigma, clone M2, F1804), anti‐Actin (Sigma, A3854), anti‐GAPDH (Sigma, G9295), and stabilized peroxidase‐conjugated secondary antibodies (Thermo Fisher Scientific) were used at the manufacturer‐recommended dilutions. Alexa Fluor‐conjugated secondary antibodies (Molecular Probes) were used for immunofluorescence.
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2

Antibody Validation for mRNA Decay Factors

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Antibodies used in this study were as follows: rabbit polyclonal anti-DDX6 (Bethyl Laboratories), rabbit polyclonal anti-Pat1b (Bethyl Laboratories), rabbit polyclonal anti-DCP2 (Bethyl Laboratories), mouse monoclonal anti-EDC3 (Abcam), rabbit polyclonal anti-GW182 (Bethyl Laboratories), mouse monoclonal anti-eIF4E (BD Transduction Laboratories), rabbit polyclonal anti-PABP (Abcam), rabbit monoclonal anti-Ago2 (Cell Signaling), mouse monoclonal anti-myc (BioShop Canada Inc.), mouse monoclonal anti-β-actin (Sigma). Rabbit polyclonal antibodies against CNOT1 and CNOT7 were kindly provided by T. Yamamoto.
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3

Characterization of DAPK and miRNA pathway

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HeLa and 293Tcells were cultured in MEDM plus 10% FBS. Both cells were determined to be free from mycoplasma contamination. The antibodies used were from different vendors: Anti-DAPK1 (Abcam, ab109382; ABclonal, A5741), Anti-DAPK2 (Abgent, AP7033A), Anti-DAPK3 (Abgent, AJ1236b; Thermal scientific, PA5–27700), Anti-ACTIN (PTGCN, 60008-I-Ig), Anti-E2F1 (Abcam, ab179445), Anti-GW182 (Bethyl, A302–329A), Anti-TNRC6B (Abnova), Anti-TNRC6C (Bethyl, A303–969A), Anti-Ago1 (Abcam, ab105104), Anti-Ago2 (Abnova, H00027161-M01), Anti-Ago3 (Proteintech, 19692-I-AP), Anti-Ago4 (CST, 6913S), Anti-CD99 (Proteintech, 60354-I-Ig; ABclonal, A2028), Anti-NDRG1 (Abcam, ab124698), Anti-SAFB (Abnova, H00006294-M04), Anti-FLAG (ABclonal, AE005), Anti-GFP (Proteintech, 66002-I-Ig), anti-Mcherry (ABclonal, AE002). Western blotting results were quantified by the ImageJ software.
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4

Characterization of DAPK and miRNA pathway

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HeLa and 293Tcells were cultured in MEDM plus 10% FBS. Both cells were determined to be free from mycoplasma contamination. The antibodies used were from different vendors: Anti-DAPK1 (Abcam, ab109382; ABclonal, A5741), Anti-DAPK2 (Abgent, AP7033A), Anti-DAPK3 (Abgent, AJ1236b; Thermal scientific, PA5–27700), Anti-ACTIN (PTGCN, 60008-I-Ig), Anti-E2F1 (Abcam, ab179445), Anti-GW182 (Bethyl, A302–329A), Anti-TNRC6B (Abnova), Anti-TNRC6C (Bethyl, A303–969A), Anti-Ago1 (Abcam, ab105104), Anti-Ago2 (Abnova, H00027161-M01), Anti-Ago3 (Proteintech, 19692-I-AP), Anti-Ago4 (CST, 6913S), Anti-CD99 (Proteintech, 60354-I-Ig; ABclonal, A2028), Anti-NDRG1 (Abcam, ab124698), Anti-SAFB (Abnova, H00006294-M04), Anti-FLAG (ABclonal, AE005), Anti-GFP (Proteintech, 66002-I-Ig), anti-Mcherry (ABclonal, AE002). Western blotting results were quantified by the ImageJ software.
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5

Characterization of Anti-Ago1x Antibody

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Polyclonal anti-Ago1x antibody was generated in rabbit against the unique peptide sequence, RQNAVTSLDRRKLSKP, and was affinity-purified (Pierce Biotechnology). To confirm the specificity, the anti-Ago1x antibody was incubated with the same peptide at a final concentration of 1 μg/ml for 2 h with gentle agitation at room temperature before using it for Western blot (described below). Anti-Ago1 antibody (Cell Signaling Technologies, 9388; Sigma, SAB4200065), anti-Dicer (Sigma, SAB4200087), anti-HA (Sigma, clone 3F10, 11867423001; and Cell Signaling Technology, clone 6E2, 2367), anti-GW182 (Bethyl Laboratories, A302-329A), anti-puromycin (Merck Millipore, clone 12D10, MABE343), anti-Myc (Cell Signaling Technologies, 22725), anti-FLAG (Sigma, clone M2, F1804), anti-Actin (Sigma, A3854), anti-GAPDH (Sigma, G9295), and stabilized peroxidase-conjugated secondary antibodies (Thermo Fisher Scientific) were used at the manufacturer-recommended dilutions. Alexa Fluor-conjugated secondary antibodies (Molecular Probes) were used for immunofluorescence.
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6

Protein Detection and Quantification

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Western blotting was performed using the Novex NuPAGE SDS/PAGE gel system (Invitrogen). Total cell lysates were run either on 3–8% Tris-acetate or 4–12% Bis-Tris precast gels, transferred to nitrocellulose membranes, and probed with antibodies specific to proteins of interest. Detection and quantification of blots were performed on Amersham hyperfilm ECL (Cytiva #28906839) and developed on film processor SRX-101A (Konica). Antibodies used for western blots were obtained from commercial sources as follows: anti-GW182 (Bethyl #A302-239A), anti-Ago2 (Cell Signaling #2897), anti-PABP1 (Cell Signaling #4992), anti-RPL26 (Bethyl #A300-686A), anti-GAPDH (Sigma #G8795), anti-β-actin (Sigma #A2228), anti-GFP (Roche #11814460001), anti-tubulin (Sigma-Aldrich #T9026), anti-HA (Cell Signaling #C29F4), anti-rabbit IgG, HRP-conjugated (GE Healthcare #NA934), and anti-mouse IgG, HRP-conjugated (GE Healthcare #NA931).
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7

Antibody Validation for CNOT Complex

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Antibodies against CNOT1 and CNOT3 have been previously described (Chen et al., 2011) .
Commercially available antibodies used in this study were: anti-a-tubulin (Sigma, T9026), anti-PARP (CST, 9542S), anti-CNOT9 (Proteintech, 22503-1-AP), anti-Flag (MBL, PM020), anti-Xrn-1(Bethyl A300-443A), anti-HistoneH3 (CST, 4499S), anti-GW182 (Bethyl, A302-329A), anti-CNOT2 (CST, 34214S), anti-4EBP1 (CST, 9644S), anti-b-actin (CST, 4970L), anti-GAPDH (CST, 2118L), anti-CNOT10 (Bethyl A304-899A), and anti-Ago2 (CST, 2897S). small colonies were picked and seeded into individual wells of a 48 well plate and propagated further. Knockout clones were confirmed by DNA sequencing and Western blotting.
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