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3 protocols using anti phospho ulk1ser555

1

Comprehensive Protein Analysis Protocol

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Primary antibodies used for Western blotting are listed as follows, the dilutions are indicated in the list. Anti-PGC1 alpha (ab191838, dilution 1:1000), Anti-NOX2/gp91phox (ab129068, 1:500), Anti-GCLC (ab190685, 1/500), Anti-PRDX3 (ab73349, 1:1000), Anti-p62 (ab91526, 1:1000), Anti-Citrate synthase (ab129095, 1:1000), Anti-GAPDH (ab8245, 1:2000) from Abcam (Cambridge, UK); Anti-AMPKα (#2532, 1:400), Anti- Phospho-AMPKαThr172 (#2535, 1:400), Anti-MFN2 (#9482, 1:500), Anti-ULK1 (#8054, 1:200), Anti-Phospho-ULK1Ser555 (#5869, 1:250), Anti-LC3B (#43566, 1:250), from Cell Signalling (Cell Signalling Technology, Danvers, MA, USA); Anti-SOD2 (ADI-SOD-111, 1:2000) from Enzo Life Sciences (Farmingdale, New York, USA). Primary antibodies Anti-MYH I (BA-D5, 1:200), Anti-MYH IIb (BF–F3, 1:250), and Anti-MYH IIa (SC-71, 1:250) from Developmental Studies Hybridoma Bank (Iowa, USA) and Wheat Germ Agglutinin (WGA), CF®405S Conjugate (29,027–1, 1:200, Generon, Slough, UK) for membrane staining were used for immunohistochemistry.
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2

Plasmid Transfection and Antibody Analysis

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The following plasmids were used for transfection: pcDNA3.1(-)-GFP-LC3 [47 (link)], mRFP-GFP-LC3 construct [48 (link)]. hPC1-expressing plasmid WT (REP10) was a gift from Gregory Germino (Addgene plasmid #21368) [49 (link)] as was hPC2-expressing plasmid (M-PKD2 (OF2-3); Addgene plasmid #21370) [21 (link)].
The following siRNAs were used: siRNA against mouse Pkd2 (AM16708, assay ID 150154, Thermo Fischer Scientific), siRNA against mouse BECN1 (4390771, Ambion, Woolston, UK) and negative control DsiRNA (51-01-14-04, IDT).
The following antibodies were purchased from Cell Signaling Technology (Danvers, MA, USA): anti-β-Actin (4970), anti-FoxO1 (14952), anti-ULK1 (8054), anti-phospho-ULK1 (Ser555) (5869), anti-phospho-ULK1 (Ser757) (14202), anti-phospho-ULK1 (Ser317) (3776), anti-AMPK (5832), anti-phospho AMPK (Thr172) (50081), anti-S6 (2217) and anti-p-S6 (4858). Anti-PC1 (sc-130554), anti-PC2 (sc-28331) and anti-SV40 LT were from Santa Cruz Biotechnology (Dallas, TX, USA), anti-Sqstm1 (P0067) and anti-EpCam (HPA026761) from Sigma-Aldrich (Saint-Louis, MO, USA, anti-LC3 from Nanotools (clone 5F10; München, Germany), anti-PgP from Abcam (ab170904; Cambridge, UK) and anti-AQP1 from Novus Biologicals (84488; Abingdon, UK). Secondary anti-rabbit and anti-mouse antibodies were from Bio-Rad Laboratories (Hercules, CA, USA).
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3

AMPK Activation in HEK293 Cells

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HEK293 cells were grown in DMEM media until they reached confluency. Then, cells were washed with KHR/Glu media (125 mM NaCl, 3 mM KCl, 1.5 mM CaCl2, 0.5 mM MgSO4, 0.5 mM KH2PO4, 2.5 mM NaHCO3, 10 mM HEPES, pH: 7.4/ 25 mM Glucose) and maintained in this media supplemented or not with the appropriated concentration of different compounds for 1 h. Phenformin 5 mM and different doses of A-769662 (25 to 100 μM) were used as a positive control of AMPK activation. Then, cell lysis and protein extracts were obtained and analyzed as in Garcia-Haro et al., 201033 (link). In brief, cell extracts (30 μg) were boiled in electrophoresis sample buffer and analyzed by SDS/PAGE and immunoblotting using appropriate antibodies: anti-phospho-AMPKα-Thr172 (#2535), anti-AMPKβ1 (#4182), anti-phospho-ACC-Ser79 (#3661), anti-ACC (#3662), anti-phospho-Raptor-Ser792 (#2083), anti-phospho-ULK1-Ser555 (#5869), anti-phospho-p38-Thr180/Tyr182 (#9211), and anti-phospho-JNK-Thr183/Tyr185 (#4668), were from Cell Signaling Technology (Hertfordshire, UK). Anti-αTubulin (T6199) was from Sigma. Secondary antibodies were from Santa Cruz Biotechnology (Santa Cruz, USA). Immunoblots were analyzed with the ECL+ reagent (GE Healthcare, Barcelona, Spain) and chemiluminescence was detected using a FUJIFILM LAS-3000 lite imager. Quantification of the bands was performed using the Image Studio lite v4.0 software.
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