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Procurable · sourced on request

Sigma-Aldrich A5441

UsedSigma-AldrichImmunoassay reagents / antibodiesNetherlands
Procurable

Not in stock, available to order through our sourcing team

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Molecular Weight of Antigen
42 kDa
Antibody Isotype
IgG1
Preservative
15 mM sodium azide
Storage Temperature
-20°C
Shipping Conditions
Dry ice
Availability
Procurable
Lead time
Confirmed with your quote
All 9 specifications
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Specifications 9

Brands
Sigma-Aldrich
New/Used
Used
Molecular Weight of Antigen
42 kDa
Antibody Isotype
IgG1
Preservative
15 mM sodium azide
Storage Temperature
-20°C
Shipping Conditions
Dry ice
Availability
Procurable
Lead time
Confirmed with your quote

Product description

Mouse monoclonal antibody targeting β-actin for use in western blot, IHC, IF, and ELISA applications.

Monoclonal Anti-β-Actin antibody (Sigma A5441) is a highly specific mouse-derived antibody targeting the β-actin protein, a crucial component of the cytoskeleton involved in various cellular processes. This antibody is widely utilised as a loading control in western blot analyses, ensuring accurate quantification of target proteins across diverse samples.

Key features include:

  • High specificity: Recognises an epitope on the N-terminal end of β-actin, ensuring precise detection.
  • Versatile applications: Suitable for western blotting, immunohistochemistry, immunofluorescence, and ELISA techniques.
  • Broad species reactivity: Effective across multiple species, including human, mouse, rat, and bovine.
  • Consistent performance: Provides reliable results, making it a standard in protein expression studies.

This antibody is extensively applied in:

  • Molecular biology: Assessing protein expression levels in various cell types.
  • Biotechnology: Validating protein production in recombinant systems.
  • Clinical diagnostics: Serving as a control in diagnostic assays.
  • Pharmaceutical research: Evaluating drug effects on protein expression.

Commonly utilised in:

  • University laboratories: For fundamental research and teaching purposes.
  • Biotechnology companies: In product development and quality control.
  • Clinical research facilities: For diagnostic assay development and validation.
  • Pharmaceutical firms: In drug discovery and development pipelines.

First introduced in the late 20th century, this antibody remains a cornerstone in protein analysis, reflecting its enduring relevance in scientific research.

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Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Often, yes. Verified suppliers frequently work with service partners converting the instrument. If applicable, we can list servicing options alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 27 October 2026