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Macrophage Scavenger Receptor 1 (MSR1) ELISA Kit, Colorimetric (MTS-1123-HM3)

Overview

Description
Creative Biolabs provides sandwich ELISA kit for quantitative measurement of Scavenger Receptor 1 (MSR1) in different sample types by colorimetric.
Applications
ELISA
Qualified With
Quality Certificate
Detection Method
Colorimetric
Method Type
Sandwich ELISA
Analytical Method
Quantitative
Sample Type
Cell Lysate, Tissue Homogenate
Specificity
Scavenger Receptor 1 (MSR1)

Specification

Size
96 tests
Sample Volume
100 μL
Assay Time
3 h
Plate
Pre-coated
Bioassay Target Name
Macrophage Scavenger Receptor 1 (MSR1)
Storage
4 °C, -20 °C
Storage Comment
Reference to the protocol
Expiry Date
6 months
Product Disclaimer
This product is provided for research only, not suitable for human or animal use.

Target Details

Full Name
macrophage scavenger receptor 1
Synonyms
SRA; SR-A; CD204; SR-AI; phSR1; phSR2; SCARA1; SR-AII; SR-AIII
Background
This gene encodes the class A macrophage scavenger receptors, which include three different types (1, 2, 3) generated by alternative splicing of this gene. These receptors or isoforms are macrophage-specific trimeric integral membrane glycoproteins and have been implicated in many macrophage-associated physiological and pathological processes including atherosclerosis, Alzheimer's disease, and host defense. The isoforms type 1 and type 2 are functional receptors and are able to mediate the endocytosis of modified low density lipoproteins (LDLs). The isoform type 3 does not internalize modified LDL (acetyl-LDL) despite having the domain shown to mediate this function in the types 1 and 2 isoforms. It has an altered intracellular processing and is trapped within the endoplasmic reticulum, making it unable to perform endocytosis. The isoform type 3 can inhibit the function of isoforms type 1 and type 2 when co-expressed, indicating a dominant negative effect and suggesting a mechanism for regulation of scavenger receptor activity in macrophages.
Sub Cat Reactivity Sensitivity Detection Range  
MTS-1123-HM131 Human 0.31 ng/mL-20 ng/mL Inquiry
MTS-1123-HM132 Mouse 0.156 ng/mL-10 ng/mL Inquiry
MTS-1123-HM133 Cow User optimized Inquiry
FAQs Customer Reviews Related Products

MSR1 is membrane-associated. Can I reliably measure it in whole-cell lysates, and what extraction approach do you recommend?

Yes-membrane-associated targets are commonly measured from lysates, but extraction efficiency is critical. Use a gentle lysis method that solubilizes membrane proteins without excessive denaturation, clarify the lysate to remove debris, and run a dilution series to verify linearity. Because this is a sandwich ELISA intended for quantitative measurement across different sample types, optimizing lysis conditions and verifying recovery in your matrix will produce the most dependable results.

I'm worried about non-specific binding with lipid-rich samples (e.g., foam cell models). How can I reduce background?

Lipid-rich matrices can increase background in colorimetric ELISA. We recommend additional clarification steps (higher-speed centrifugation) and, if compatible with your biology, modest sample dilution to reduce interfering components. Ensure thorough washing and avoid over-incubation with detection reagents. Including matrix blanks and spike recovery using representative samples is the fastest way to confirm that the observed signal is MSR1-specific rather than matrix-driven.

Can I compare MSR1 levels between cell lines and primary macrophages using the same standard curve?

You can, but comparisons are strongest when sample preparation is matched as closely as possible. Cell lines and primary cells often differ in protein content and matrix complexity, which can shift apparent recovery. We recommend quantifying total protein and normalizing input, then confirming parallelism for each sample type. If matrices differ substantially, consider separate dilution strategies and include a shared internal control sample to anchor plate-to-plate and model-to-model comparisons.

  • Strong ELISA for MSR1 once lysis and clarification are standardized
    We measured MSR1 in macrophage lysates from lipid-loading experiments. After optimizing lysis buffer and adding an extra clarification spin, background dropped and the standard curve behaved nicely. Replicates were consistent, and the assay was easy to run on a normal plate reader. I appreciated that the kit fit routine sandwich ELISA handling without special equipment, which made it easy to scale to many samples.
  • Helpful for comparing receptor changes under polarization and uptake conditions
    The kit captured expected MSR1 shifts between control and treated macrophages. We learned to avoid pushing samples outside the curve; dilution and re-run gave more reliable data than extrapolation. Once we implemented a pooled lysate reference on every plate, cross-plate comparisons were much cleaner. Overall, it's a practical, dependable tool for MSR1 monitoring in standard workflows.
  • Good sensitivity in our hands with careful washing and timing
    Our team ran several plates over two weeks and the colorimetric signal remained stable when we kept incubation and wash steps consistent. The assay tolerated our standard lysate prep after we reduced detergent slightly. We used spike recovery for one representative donor and it boosted confidence in the results. If you're measuring a membrane receptor, don't skip the pilot dilution series-once set, it runs smoothly.

For Research Use Only. Do Not Use in Food Manufacturing or Medical Procedures (Diagnostics or Therapeutics). Do Not Use in Humans.

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