A Ponceau S Staining-Based Dot Blot Assay for Rapid Protein Quantification of Biological Samples

Despite the availability of a wide range of commercial kits, protein quantification is often unreliable, especially for tissue-derived samples, leading to uneven loading in subsequent experiments. Here we show that the widely used Bicinchoninic Acid (BCA) assay tends to underestimate protein concent...

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Main Authors: Dario Lucas Helbing, Leopold Böhm, Nova Oraha, Leonie Karoline Stabenow, Yan Cui
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:Gels
Subjects:
Online Access:https://www.mdpi.com/2310-2861/8/1/43
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author Dario Lucas Helbing
Leopold Böhm
Nova Oraha
Leonie Karoline Stabenow
Yan Cui
author_facet Dario Lucas Helbing
Leopold Böhm
Nova Oraha
Leonie Karoline Stabenow
Yan Cui
author_sort Dario Lucas Helbing
collection DOAJ
description Despite the availability of a wide range of commercial kits, protein quantification is often unreliable, especially for tissue-derived samples, leading to uneven loading in subsequent experiments. Here we show that the widely used Bicinchoninic Acid (BCA) assay tends to underestimate protein concentrations of tissue samples. We present a Ponceau S staining-based dot-blot assay as an alternative for protein quantification. This method is simple, rapid, more reliable than the BCA assay, compatible with biological samples lysed in RIPA or 2x SDS gel-loading buffer, and also inexpensive.
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spelling doaj.art-f998c2f9228e44f5acd5a6518d34fa692023-11-23T13:50:22ZengMDPI AGGels2310-28612022-01-01814310.3390/gels8010043A Ponceau S Staining-Based Dot Blot Assay for Rapid Protein Quantification of Biological SamplesDario Lucas Helbing0Leopold Böhm1Nova Oraha2Leonie Karoline Stabenow3Yan Cui4Leibniz Institute on Aging—Fritz Lipmann Institute, 07745 Jena, GermanyLeibniz Institute on Aging—Fritz Lipmann Institute, 07745 Jena, GermanyLeibniz Institute on Aging—Fritz Lipmann Institute, 07745 Jena, GermanyFaculty of Medicine, Friedrich-Schiller-University Jena, 07743 Jena, GermanyLeibniz Institute on Aging—Fritz Lipmann Institute, 07745 Jena, GermanyDespite the availability of a wide range of commercial kits, protein quantification is often unreliable, especially for tissue-derived samples, leading to uneven loading in subsequent experiments. Here we show that the widely used Bicinchoninic Acid (BCA) assay tends to underestimate protein concentrations of tissue samples. We present a Ponceau S staining-based dot-blot assay as an alternative for protein quantification. This method is simple, rapid, more reliable than the BCA assay, compatible with biological samples lysed in RIPA or 2x SDS gel-loading buffer, and also inexpensive.https://www.mdpi.com/2310-2861/8/1/43protein quantificationgel electrophoresisWestern blotdot blot
spellingShingle Dario Lucas Helbing
Leopold Böhm
Nova Oraha
Leonie Karoline Stabenow
Yan Cui
A Ponceau S Staining-Based Dot Blot Assay for Rapid Protein Quantification of Biological Samples
Gels
protein quantification
gel electrophoresis
Western blot
dot blot
title A Ponceau S Staining-Based Dot Blot Assay for Rapid Protein Quantification of Biological Samples
title_full A Ponceau S Staining-Based Dot Blot Assay for Rapid Protein Quantification of Biological Samples
title_fullStr A Ponceau S Staining-Based Dot Blot Assay for Rapid Protein Quantification of Biological Samples
title_full_unstemmed A Ponceau S Staining-Based Dot Blot Assay for Rapid Protein Quantification of Biological Samples
title_short A Ponceau S Staining-Based Dot Blot Assay for Rapid Protein Quantification of Biological Samples
title_sort ponceau s staining based dot blot assay for rapid protein quantification of biological samples
topic protein quantification
gel electrophoresis
Western blot
dot blot
url https://www.mdpi.com/2310-2861/8/1/43
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