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220 protocols using irdye 800cw goat anti mouse igg

1

Quantitative Immunoblot Analysis of Cell Signaling Proteins

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Cells were lysed using Triton-X-100 sample buffer, and proteins were separated by SDS-PAGE. Detection occurred by using specific antibodies against β-actin (1:5000 dilution, Biovision through BioCat GmbH, Heidelberg Germany; secondary antibody: IRDye® 800CW Goat anti-Mouse IgG, dilution 1:25,000, Li-Cor Biosciences, Lincoln, NE, USA), SLC35F2 (1:200, Santa Cruz Biotechnology, Dallas, TX, USA; secondary antibody: IRDye® 800CW Goat anti-Mouse IgG, dilution 1:25,000, Li-Cor Biosciences, Lincoln, NE, USA), GAPDH (1:4000, Trevigen via Bio-Techne GmbH, Wiesbaden, Germany; secondary antibody: IRDye® 800CW Goat anti-Rabbit IgG, dilution 1:25,000, Li-Cor Biosciences), ABCB1 (1:1,000, Cell Signaling via New England Biolabs, Frankfurt, Germany; secondary antibody: IRDye® 800CW Goat anti-Rabbit IgG, dilution 1:25,000, Li-Cor Biosciences), p53 (1:1000, Enzo Life Sciences, Lörrach, Germany; secondary antibody: IRDye® 800CW Goat anti-Mouse IgG, dilution 1:25,000, Li-Cor Biosciences), and survivin (1:500, R&D Systems, Minneapolis, MN, USA; secondary antibody: IRDye® 800CW Goat anti-Rabbit IgG, dilution 1:25,000, Li-Cor Biosciences). Protein bands were visualized by laser-induced fluorescence using infrared scanner for protein quantification (Odyssey, Li-Cor Biosciences) and Image Studio Ver. 5.2 software (Li-Cor Biosciences) for densitometric analyses.
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2

Tricine-SDS-PAGE and Western Blot Analysis

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LPS samples were separated on 14% (w/v) Tricine-SDS-PAGE and the gels stained with silver nitrate (Marolda et al., 2006a) . For Western blot to detect b-O-linked N-acetylglucosamine, samples in the polyacrylamide gel were transferred to nitrocellulose membranes and reacted with O-GlcNAc Monoclonal Antibody (IgM) (Covance) at a 1:1000 dilution. For O-antigen detection anti-O5 antigen monoclonal antibody MF15-4 (Antibodies-online) was used at a 1:10,000 dilution. Alexa Fluor® 680 Goat Anti-Mouse IgM (Invitrogen) or IRDye® 800CW Goat anti-Mouse IgG (LI-COR) were used as secondary antibodies. For protein analysis, polyacrylamide gels were transferred onto nitrocellulose membranes, which were blocked with 10% Western Blocking Solution (Roche Diagnostics). Membranes were incubated overnight at 4 o C with anti-FLAG M2 monoclonal Antibody (Sigma) at a 1:5000 dilution or anti-His (Sigma) at a 1:10,000 dilution. IRDye® 800CW Goat anti-Mouse IgG (LI-COR) or Alexa Fluor® 680 Goat anti-mouse immunoglobulin G (IgG) (Invitrogen) were used as secondary antibodies. Reacting bands were detected by fluorescence with an Odyssey infrared imaging system (Li-cor Bioscience, Lincoln, NE).
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3

Western Blot Analysis of Retinol-Binding Protein

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Apo-rRBP, serum-derived RBP (Athens Research and Technology, Cat # 16–16-180216) and recombinant human albumin (Sigma, Cat # A9731) were diluted into LDS 4X Sample buffer (NuPAGE), boiled and loaded into 4–12% Bis-Tris SDS-PAGE gel (NuPage) at a total protein concentration of 75 ng per well. SDS-PAGE was run in MES Running Buffer (50 mM MES, 50 mM Tris Base, 0.1% w/v SDS, 1 mM EDTA, pH 7.3) at 200 V for 35 minutes. Samples were transferred to 0.45 micron polyvinylidene difluoride membranes at 30 V for one hour before being collected and washed 3X at 5 minutes each in TBST (20 mM Tris, 135 mM NaCl, 0.1 % v/v Tween-20, pH 7.6). Membranes were blocked for 1 hour at room temperature in blocking buffer (5% w/v non-fat dry milk (LabScientific) dissolved in TBST) before incubation at 4 °C overnight with either mouse monoclonal anti-human RBP4 (Abnova, 1:500 dilution, Cat # MAB3211) in blocking buffer or blocking buffer alone (for no-primary controls). After overnight staining, all membranes were washed 3X at 5 minutes each in TBST before secondary antibody incubation at room temperature for 1 hour in the dark with goat anti-mouse IgG IRDye 800CW (Li-Cor, 1:5000 dilution, Cat # 926–32210) antibody in blocking buffer. Probed membranes were washed 3X at 5 minutes each in TBST and subsequently imaged using a Li-Cor Odyssey Imager.
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4

Western Blot Analysis of Respiratory Syncytial Virus

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Infected Vero cells from single-cycle infections were harvested in 1X NuPage LDS sample buffer (Thermofisher) diluted in PBS containing protease inhibitor (Roche). Cell lysates were homogenized using a QIAshredder spin column (Qiagen) and protein concentrations were determined by BCA assay (Pierce BCA Protein Assay kit). Thirty μg of proteins was denatured in a final composition of 1X NuPage LDS sample buffer (ThermoFisher) and 1X NuPAGE Sample Reducing Agent (Invitrogen) by heating at 90°C for 10 min before being subjected to electrophoresis on NuPAGE 4–15% Mini-PROTEAN TGX Gels (Bio-Rad) with 1X TGS Running Buffer (Bio-Rad). Odyssey Protein Molecular Weight Marker (Li-Cor) was run in parallel. Proteins were transferred to PVDF membranes using the iBlot 2 Gel Transfer Device (ThermoFisher) and stained with a primary mouse anti-RSV F (abcam, ab43812), a mouse anti-RSV P (abcam, ab94965) or a mouse anti-RSV G (abcam, 94966) antibody. The rabbit anti-Tubulin (abcam, ab52866n) antibody was used as a loading control. The secondary antibodies used were goat anti-rabbit IgG IRDye 680RD (at 1:15,000, Li-Cor, 926–68071), and goat anti-mouse IgG IRDye 800CW (1:10,000, Li-Cor, 926–32210). Membranes were scanned using Odyssey software, version 3.0 (Li-Cor).
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5

Investigating SKOV-3 Ovarian Cancer Cells

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Human ovarian adenocarcinoma cells (SKOV-3) were purchased from American Type Culture Collection (Manassas, VA, USA). RES was purchased from MilliporeSigma (Burlington, MA, USA). MTT reagent (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) was purchased from MilliporeSigma. Guava® Cell Cycle Reagent was purchased from Luminex Corporate (Austin, TX, USA). Annexin V was purchased from ImmunoTools (Friesoythe, Niedersachsen, Germany). Propidium iodide was purchased from MilliporeSigma. Rabbit anti-phospho p38 antibody, rabbit anti p38 antibody, rabbit anti-phospho ERK1/2 antibody, mouse anti-ERK1/2 antibody, rabbit anti-phospho JNK antibody, rabbit anti-JNK antibody, rabbit anti-phospho AKT (Ser473) antibody, mouse anti-AKT antibody, rabbit anti-cyclin A2 antibody, rabbit anti-cyclin B1 antibody, rabbit anti-cyclin E1 antibody, rabbit anti-caspase-9 antibody, rabbit anti-caspase-3 antibody, rabbit anti-PARP antibody, mouse anti-β-actin antibody, and DAPI (4, 6-diamidino-2-phenylindole, dihydrochloride) were purchased from Cell Signaling Technology (Danvers, MA, USA). Goat anti-mouse IgG-IRDye®800CW and goat anti-rabbit IgG-IRDye®680RT were purchased from Li-COR Biosciences (Lincoln, NE, USA). Goat anti-rabbit conjugated with Alexa488 and Goat anti-mouse conjugated with Alexa594 were purchased from Thermo Fisher Scientific (Waltham, MA, USA).
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6

Signaling Pathway Characterization

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FACS: Anti-BrdU (1:200, BD Pharmingen). Western Blot: mTOR (1:1000, Cell Signaling), p-mTOR (1:1000, Cell signaling), AKT (1:1000, Cell signaling), p-AKT Ser473 (1:1000, Cell Signaling), ERK1/2 (1:1000, Cell Signaling), p-ERK Thr202/Tyr204 (1:1000, Cell Signaling), AXL (1:10 000, Genscript), p-AXL Tyr702 (1:1000, Cell Signaling) and Tubulin (1:10 000, Sigma).
Secondary antibodies: goat anti-rabbit IgG (IRDye 680RD, 1:10 000) and goat anti-mouse IgG (IRDye 800CW, 1:10 000) were purchased from Li-Cor.
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7

Quantitative Protein Tag Detection

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A serial dilution of MBP fused to FLAG®-, HA-, myc- and ALFA-tags was prepared in PBS pH7.4, 0.1 µg mL−1 BSA. In total 1 µL of each dilution was spotted on nitrocellulose membranes. Membranes were blocked and washed with 5% milk powder in TBS-T. Established monoclonal antibodies (anti-FLAG® M2, Sigma #F1804; anti-myc 9E10 Synaptic Systems #343 011; anti-HA F-7, SantaCruz #sc-7392) were used in combination with a secondary goat anti-Mouse IgG IRDye800CW (Li-COR #925–32210, dilution 1:500) to detect FLAG®-, myc- and HA-tag, respectively. The ALFA-tag was detected using a FluoTag®-X2 anti-ALFA nanobody (NanoTag Biotechnologies #N1502) directly coupled to IRDye800CW. All primary antibodies and the nanobody were used at 2.7 nM final concentration. Detection of MBP by a rabbit polyclonal serum recognizing MBP (Synaptic Systems, dilution 1:500) and an anti-rabbit IgG IRDye680RD (Li-COR #925–68071, dilution 1:5000) served as an internal loading control. Membranes were scanned using Odyssey CLx (Li-COR). Quantifications were performed using ImageStudioLight (Li-COR).
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8

Quantitative Immunoblot Analysis of NF-κB

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Blood was separated into neutrophils and PBMCs. Neutrophils (5 × 106) were used for protein lysates, separated by means of SDS-PAGE, and transferred onto a nitrocellulose membrane. Individual proteins were detected with antibodies against NF-κB p50 (mouse mAb E-10; Santa Cruz Biotechnology, Dallas, Tex), against IκBα (rabbit polyclonal antiserum C-21; Santa Cruz Biotechnology), and against human glyceraldehyde-3-phosphate dehydrogenase (mouse mAb; Merck Millipore, Darmstadt, Germany).
Secondary antibodies were either goat anti-mouse-IgG IRDye 800CW, goat anti-rabbit IgG IRDye 680CW or goat anti-mouse IgG IRDye 680LT (LI-COR Biosciences, Lincoln, Neb). Relative fluorescence quantification of bound secondary antibodies was performed on an Odyssey Infrared Imaging system (LI-COR Biosciences) and normalized to glyceraldehyde-3-phosphate dehydrogenase.
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9

Oxyresveratrol Regulates Cell Cycle and Apoptosis in HaCaT Keratinocytes

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Human immortalized keratinocytes (HaCaT) were purchased from Cell Lines Service GmbH (Eppelheim, Germany). Recombinant human TNF-α was purchased from PeproTech (Rocky Hill, NJ, USA). Oxyresveratrol (OXY) was purchased from Sigma-Aldrich (Saint Louis, MO, USA). MTT reagent (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) was purchased from Sigma-Aldrich (Saint Louis, MO, USA). Guava® Cell Cycle Reagent was purchased from Luminex Corporate (Austin, TX, USA). Rabbit anti-phospho-AKT (Ser473) antibody, mouse anti-AKT antibody, rabbit anti-phospho-GSK3-β (Ser9), mouse anti-GSK3-β antibody, rabbit anti-Ki-67 antibody, rabbit anti-MCL-1 antibody, DAPI (4′, 6-diamidino-2-phenylindole, dihydrochloride), and LY294002 (a specific inhibitor of the PI3K/AKT) were purchased from Cell Signaling Technology (Boston, MA, USA). Goat anti-mouse IgG-IRDye®800CW and goat anti-rabbit IgG-IRDye®680RT were purchased from Li-COR Biosciences (Lincoln, NE, USA). Goat anti-rabbit conjugated with Alexa488 was purchased from Thermo Fisher Scientific (Waltham (HQ), MA, USA).
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10

Western Blot Analysis of Alzheimer's Proteins

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N2a/APP695 cells (1 × 105 cells/mL) were cultured in a 6-well plate for 24 hours and were then treated with RJPs for 24 hours. Cells were washed with cold PBS and lysed with 1 × loading buffer (10 mM Tris, pH 6.8; 1%SDS; 5% glycerin; 0.1 M DTT; bromophenol blue; 1 mM AEBSF (Sigma, USA)). The lysate was collected and boiled at 100 °C for 10 min. Subsequently, an equal volume of sample was electrophoretically separated using 10% SDS-PAGE and then transferred to an NC membrane (Millipore, USA). Membranes were incubated overnight at 4 °C with various primary antibodies. The primary antibodies used in this study: mouseanti-APP (6E10, 1:250, Covance, USA), rabbit-anti-BACE1 (1:500, Abcam, USA), rabbit-anti-HDAC1 (1:5000, AB clonal, Wuhan, China), rabbit-anti-β-actin and rabbit-anti-GAPDH (1:2000, Cell Signaling Technology, USA). The secondary antibodies used were goat-anti-mouse IgG IRDye 800CW (1:10000, Li-COR, USA) and goat-anti-rabbit IgG IRDye 800CW (1:10000, Li-COR, USA). After incubation with the secondary antibody, the membranes were washed 4 times for 5 min each time. Finally, we used the LI-COR Odyssey Infrared Fluorescence Scanning System (Li-COR, USA) to quantify the fluorescence intensity. The intensity of the bands was analyzed using the system software.
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