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Anti β actin

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Anti-β-actin is a laboratory reagent used for the detection and quantification of the β-actin protein, a ubiquitous cytoskeletal protein found in eukaryotic cells. It is commonly used as a loading control or reference standard in various cell biology and molecular biology techniques, such as Western blotting and immunocytochemistry, to normalize the expression of target proteins.

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32 protocols using anti β actin

1

Western Blot Analysis of Signaling Proteins

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Cultured cells were lysed in RIPA buffer containing protease inhibitors. Protein concentration was determined by Bradford Protein Assay (Bioworld, 20830000-1). Equal protein per well was loaded and resolved by SDS-PAGE. Gels were transferred onto PVDF membranes (Thermo Scientific, 88518) and immunoblotted using the following antibodies: anti-PIM1 (Cell Signaling Technology-CST, 2907), anti-PIM2 (CST, 4730), anti-PIM3 (CST, 4165), anti-phospho IRS-1 (Ser1101-CST, 2385), anti-phospho GSK3β (Ser9-CST, 9323), anti- GSK3β (CST, 12456), anti-GAPDH (CST, 2118), anti-vinculin (CST, 13901), anti-HA-TAG (CST, 3924), anti-cyclin D1 (CST, 2922), anti-β-catenin (Santa Cruz Technology, SC-7963), anti-Tip47 (Santa Cruz Technology, SC-390981), anti-PPARα (LifeSpan BioSciences, LS-B46), anti-βactin (BD Transduction Laboratories, 612656). Anti-rabbit (CST, 7074) and Sheep a-mouse (Prometheus, 84–843) HRP secondary antibodies were used for detection. Blots were imaged on a ChemiDoc (SynGene) using chemiluminescence detection with ECL western blotting substrate (Thermo Scientific, 34095).
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2

SARS-CoV-2 Antibodies and Antiviral Compounds

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Antibodies. The following antibodies were used for western blotting: ACE2 Polyclonal Goat IgG (cat n° AF933, R&D systems), Cathepsin B Monoclonal Mouse IgG1 (cat n° MA5-32651, Thermo Fisher Scientific), Cathepsin L Monoclonal Mouse IgG1 (cat n° BMS166, Thermo Fisher Scientific), anti-clathrin (cat. n° 610500, BD transduction laboratories), anti-β-actin (cat. n° MA1-140, Invitrogen), HRP-labeled goat anti-mouse immunoglobulin (cat. n° P0447, Dako). The following antibodies were used for flow cytometry: rabbit monoclonal SARS-CoV-2 spike-specific antibody (Cat. n° 40592-R001, Sino Biological), rabbit polyclonal SARS-CoV-2 nucleocapsid-specific antibody (Cat. n° GTX135357, GeneTex), fluorescent-labeled Alexa Fluor 647 (AF647) goat anti-Rabbit IgG monoclonal antibody (Cat. n° 4414, Cell Signaling Technologies).
Compounds. Monophosphoramidate prodrug Remdesivir GS-5734 (Cat. n° 469411000, Acros Organics); Molnupiravir (MK-4482 or EIDD-2801), a nucleoside analogue prodrug (Cat. n° S8969, Bio-Connect); Nirmatrelvir (PF-07321332), an irreversible inhibitor of SARS-CoV-2 viral main protease Mpro (Cat. n° S9866, Bio-Connect); purified SARS-CoV-2 spike-specific monoclonal rabbit primary antibody R001 (Cat. n° 40592-R001, Sino Biological).
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3

Western Blotting Protocol for Protein Analysis

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Western blotting was performed as previously described [31 (link), 32 (link)]. Briefly, tissues were homogenized and lyzed in protein lysis buffer on ice for 30 minutes. The collected protein samples were separated by SDS-PAGE, transferred to PVDF membrane and then blotted with indicated antibodies (anti-NF-κB p65 antibody: Cell Signaling Technology #8242; anti-β-actin: BD Transduction Laboratories 612656).
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4

Immunoblotting and Immunofluorescence Protocols for COMMD4 and Cell Markers

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The following primary antibodies were used; anti-COMMD4 (Abcam, ab115169), anti-COMMD4 (Abcam, ab219115), CK7 (Abcam, ab9021), anti-β-actin (BD Biosciences, 612656), PARP1 (Cell Signaling, 9532), α-tubulin (Sigma-Aldrich, T5168) and lamin A/C (Cell Signaling, 4777). The following secondary antibodies were used for immunoblotting; IRDye® 800CW Donkey anti-mouse, IRDye® 800CW Donkey anti-goat and IRDye® 680CW Donkey anti-rabbit (LI-COR, Inc.). The following secondary antibodies were used for immunofluorescence; Alexa Fluor® 488 donkey anti-rabbit (Life Technologies, A21206), Alexa Fluor® 488 donkey anti-mouse (Life Technologies, A21202), Alexa Fluor® 594 donkey anti-mouse (Life Technologies, A21203) and Alexa Fluor® 594 donkey anti-rabbit (Life Technologies, A21207).
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5

Western Blot Analysis of Key Signaling Proteins

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Western blots were carried out as previously described (35 (link)), using the following antibodies: anti-Rac1 clone 23A8 (catalog # 05-389, Upstate Biotechnology, Lake Placid, NY), anti-phospho-Erk1/2 (catalog # 9101S), anti-PKCδ (catalog # 2058S), anti-PKCε (catalog # 2683S), anti-phosphoSmad2/3 (catalog # 8828S), anti-phospho-MYPT1 (catalog # 5163S), anti-vimentin (catalog # 3390S), anti-Cdc42 (catalog # 2466S), anti-RhoA (catalog # 2117S, Cell Signaling Technology, Beverly, MA), anti-PKCε (catalog # sc-208, Santa Cruz Biotechnology, Dallas, TX), anti-vinculin (catalog # V9131, Sigma-Aldrich, St. Louis, MO), anti-β-actin (catalog # A5441, BD Biosciences, Franklin Lakes, NJ), and anti E-cadherin (catalog # MAB1838, RD Systems, Minneapolis, MN).
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6

Western Blot Analysis of Key Signaling Proteins

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Western blots were carried out as previously described (35 (link)), using the following antibodies: anti-Rac1 clone 23A8 (catalog # 05-389, Upstate Biotechnology, Lake Placid, NY), anti-phospho-Erk1/2 (catalog # 9101S), anti-PKCδ (catalog # 2058S), anti-PKCε (catalog # 2683S), anti-phosphoSmad2/3 (catalog # 8828S), anti-phospho-MYPT1 (catalog # 5163S), anti-vimentin (catalog # 3390S), anti-Cdc42 (catalog # 2466S), anti-RhoA (catalog # 2117S, Cell Signaling Technology, Beverly, MA), anti-PKCε (catalog # sc-208, Santa Cruz Biotechnology, Dallas, TX), anti-vinculin (catalog # V9131, Sigma-Aldrich, St. Louis, MO), anti-β-actin (catalog # A5441, BD Biosciences, Franklin Lakes, NJ), and anti E-cadherin (catalog # MAB1838, RD Systems, Minneapolis, MN).
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7

Western Blot Analysis of Stem Cell Markers

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Cell lysates were separated by 10% sodium dodecyl sulfate (SDS) polyacrylamide gel electrophoresis and transferred onto polyvinylidene fluoride (PVDF) membranes. After blocking with 5% fat-free milk in Tris-buffered saline, the following antibodies were used for western blotting: anti-Sox2 (1∶500), anti-ALDH1 (BD Biosciences, 1∶500), anti-Bmi1 (1∶500), anti-Oct4 (1∶500), anti-Nanog (1∶500), anti-vimentin (1∶500), anti-snail (1∶500), anti-β-catenin (1∶500), anti-E-cadherin (1∶500), and anti-β-actin (1∶1000) overnight at 4°C. All antibodies were obtained from Santa Cruz Biotechnology unless otherwise specified. After washing, the bound antibodies were visualized using horseradish peroxidase-conjugated anti-goat, ant-rabbit, or anti-mouse IgG (Thermo Fisher Scientific Inc., New York, NY) and the Immobilon Western Chemiluminescent HRP Substrate (Millipore, Billerica, MA) and subsequently visualized on X-ray films [21] (link).
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8

Immunoblotting for Cell Cycle Regulators

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Western blotting was performed using anti-Cdc25C (1:500, Santa Cruz Biotechnology Inc), anti-FoxM1 (1:500, Santa Cruz Biotechnology Inc), and anti-β-actin (1:3000, BD Biosciences).
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9

Antibody Characterization for DNA Damage Response

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The antibodies used were as follows: anti-Banf1 N-terminus (SAB1409950, Sigma-Aldrich, 1:1000 for WB and 1:500 for IF), anti-Banf1 C-terminus (PRS40170604, Sigma-Aldrich, 1:1000 for WB and 1:500 for IF), anti-Emerin (5430, Cell Signalling Technology, 1:500 for IF), anti-Flag M2 Antibody (F3165, Sigma-Aldrich, 1:1000 for WB and 1:300 for IF), anti-γ-Tubulin (T6557, Sigma-Aldrich, 1:2000 for WB), anti-H3 (4499, Cell Signaling Technology, 1:2000 for WB), anti-β-actin (612656, BD Biosciences, 1:2000 for WB), anti-P-ATM S1981 (5883, Cell Signaling Technology 1:1000), anti-Mre11 (HPA002691, Sigma-Aldrich, 1:1000 for WB), anti-MDC1 (PLA0016, Sigma-Aldrich, 1:1000 for IF), anti-γ-H2AX (ab26350, abcam, 1:1000 for WB; 9718, Cell Signalling Technology, 1:1000 for IF, ab81299, abcam for ChIP), anti-p-DNA-PK S2056 (Abcam, ab124918, 1:1000 wb), anti-DNA-PKcs (12311, Cell Signaling Technology 1:1000 for western blot and ab70205 1:200 for IF), anti-Ligase IV (ab193353, Abcam, 1:1000), anti-Ku70 (ab92450, Abcam, 1:1000) and anti-nucleolin (14574, Abcam, 1:1000). Fluorescent secondary antibodies used were: Donkey anti-Mouse 800 nm (LiCor; IRDye 800CW 926–32212, 1:5000 for WB), Donkey anti-Rabbit (LiCor; IRDye 680LT 926–28023, 1:5000 for WB) and Alexa Fluor 488 (Cat# A32766, Molecular Probes, 1:200 for IF) and 594 (Cat# A32754, Molecular Probes, 1:200 for IF).
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10

Immunoblotting and Immunofluorescence Protocols

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The following primary antibodies were used: anti-COMMD1 (Abcam, ab224727), (Invitrogen, MA5-26010), anti-β-actin (BD Biosciences, 612656), anti-gamma H2AX (Abcam, ab26350), anti-p53 Serine 15 (Cell Signaling, 9284), anti-p53 clone D0–7 (Sigma-Aldrich, p8999), anti-Chk2 Threonine 68 (Cell Signaling, 2661), anti-Chk2 (Cell Signaling, 2662), anti-ATM Serine 1981 (Cell Signaling, 13050), anti-ATM (Cell Signaling, 2873), anti-H2AX (Cell Signaling, 7631) anti-MDC1 (Abcam, 11169). The following secondary antibodies from LI-COR, Inc, were used for immunoblotting; IRDye® 800CW Donkey anti-mouse (926-32212) and IRDye® 680CW Donkey anti-rabbit (926-68073). The following secondary antibodies from Life Technologies were used for immunofluorescence; Alexa Fluor® 594 donkey anti-rabbit (A21207), Alexa Fluor® 594 donkey anti-mouse (A21203), Alexa Fluor® 488 donkey anti-rabbit (A21206) and Alexa Fluor® 488 donkey anti-mouse (A21202).
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