Tag Archives: near-infrared fluorescent reagents

NEW! IRDye® Goat Anti-Mouse IgM Secondary Antibodies from LI-COR®!

Our IRDye secondary antibody line is growing! We have recently added IRDye Goat anti-Mouse IgM (μ chain specific) secondaries labeled with: IRDye 800CW (PN 926-32280) IRDye 680RD (PN 926-68180) or IRDye 680LT (PN 926-68080). Just like all of the LI-COR … Continue reading

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New! Optical Probe for Tumor Imaging – IRDye® 800CW YC-27

IRDye 800CW YC-27 (P/N 926-27000) is a near-infrared dye-labeled imaging agent specifically designed to target prostate specific membrane antigen (PSMA), also known as folate hydrolase I or glutamate carboxypeptidase II. This small molecule can be used as an optical imaging … Continue reading

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Monitor Protein Levels and Phosphorylation with Quantitative Multiplexed Western Blots

Molecular profiling reveals diversity of stress signal transduction cascades in highly penetrant Alzheimer’s disease human skin fibroblasts. Mendonsa, G., et al. PLoS ONE 4(2): e4655. doi:10.1371/journal.pone.0004655 Aberrant signal transduction is associated with Alzheimer’s disease (AD). In skin fibroblasts of AD … Continue reading

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Normalize Protein Concentrations with Nucleic Acid Stains in In-Cell Western™ Assays

When performing the In-Cell Western assay, one fluorescence channel is often used for normalization. This allows quantification data for the protein of interest to be corrected for well-to-well variation in cell number, thereby increasing the overall accuracy of the assay. … Continue reading

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In-Cell Western™ Assay Application: Response of COS-7 Cells to Hydroxyurea

Application: Detecting phospho-p53 in COS cells in response to Hydroxyurea The response of COS-7 cells to increasing doses of hydroxyurea was measured by a specific antibody (Anti-phospho-p53 from Cell Signaling Technology, P/N 9286) that detects phosphorylated-p53 (Ser16). Total ERK1 was … Continue reading

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Suspension Cells for Quantitative Cell Signaling Analysis using In-Cell Western™ Assays

So I’ve talked about how to ensure that suspension cells attach to plates, when to know you have a monolayer, and why round bottom plates are the best when doing In-Cell Western Assays with suspension cells in the 23-May-12 blog … Continue reading

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Washing Gently and Round Bottom Plates are Essential for Successful In-Cell ELISAs Using Non-Adherent Cells

I mentioned in my post on 23-May, that the next few entries would be on more hints and tips of how to use non-adherent cells for In-Cell Western Assays – so here goes! During my washing steps, cells are coming … Continue reading

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Using Non-adherent Cells for Fluorescent Immunoassays – Tips for Successful In-Cell Western™ Assays

You might be wondering if this powerful technique called In-Cell Western Assay can be used for your cell line because your cell line is non-adherent. Well, you are in luck! You CAN use suspension cells for ICW Assays – with … Continue reading

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Receptor-based Binding and Competition Assays with Infrared Fluorescence

What is an On-Cell Western Assay? It’s a cell-based assay that enables quantitative monitoring of cell surface protein expression. The On-Cell Western assay offers the ability to: Detect and quantify target proteins localized to the cell surface Quantify ligand binding … Continue reading

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Fast, Cost-Effective Cell-Based Assays for Quantitative Cell Signaling Analysis

The In-Cell Western™ Assay is an immunocytochemical assay that uses near-infrared fluorescence to detect and quantify proteins in fixed cells. Detecting proteins in their cellular context increases quantification precision. Proteins in fixed, cultured cells are detected directly in microplates, which … Continue reading

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