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QPBCA

Sigma-Aldrich

QuantiPro BCA Assay Kit

for 0.5-30 μg/ml protein

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Synonym(s):
BCA Assay, Protein determination by BCA, bicinchoninic acid reagent
NACRES:
NA.84

shipped in

wet ice

storage temp.

2-8°C

Application

In addition to protein determination and quantification in solution, the QuantiPro BCA Assay Kit has other applications, including determination of protein covalently bound to agarose supports and protein adsorbed to multiwell plates. It has also been applied to the determination of functional groups such as sulfhydryl, N-hydroxysuccinimido carboxylate, aldehyde and hydrazide on a variety of solid supports.
The kit can be used to measure very dilute protein concentrations in very small sample volumes. Accurately measures protein concentrations from 0.5 to 30 μg/mL in tube assays and 1 to 20 μg/mL in 96- or 384-well plate assays.

Features and Benefits

  • Accurate across a broad range of protein concentrations
  • High sensitivity; linear response form 0.5 to 30 μg/ml of protein
  • Stable color complex
  • Reduced susceptibility to detergents

Principle

Based on the alkaline reduction of Cu2+ to Cu1+ by proteins, and the formation of a bicinchoninic acid:Cu1+ complex having an absorbance maximum at 562 nm.

Storage and Stability

Store Reagents QA, QB, and QC at room temperature. Reagents QA and QB can be mixed together without Reagent QC (4% Copper(II) Sulfate Pentahydrate Solution 12 mL) and stored in a closed container at room temperature for a week. If this kit is received or stored cold, a precipitate may form in Reagent QA or Reagent QB. To dissolve the precipitate, warm the solution slowly to room temperature while mixing. The solutions are now suitable for use.

Legal Information

QuantiPro is a trademark of Sigma-Aldrich Co. LLC

Kit Components Only

Product No.
Description

  • Copper(II) sulfate solution, 4 % (w/v) (prepared from copper (II) sulfate pentahydrate) 12 mL

Kit Components Also Available Separately

Product No.
Description
SDS

  • P0914Protein Standard Solution: 1.0 mg/ml bovine serum albumin in 0.15 M NaCl with 0.05% sodium azide (flame-sealed glass ampules) 10 x 1SDS

Application

Product No.
Description
Pricing

related product

Product No.
Description
Pricing

Pictograms

CorrosionEnvironment

Signal Word

Danger

Hazard Statements

Hazard Classifications

Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Met. Corr. 1 - Skin Irrit. 2

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK

WGK 3

Regulatory Information

含少量动物源组分生物产品

Certificates of Analysis (COA)

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Sook Hyun Chung et al.
Scientific reports, 6, 28993-28993 (2016-07-05)
Vascular changes and photoreceptor degeneration are features of age-related macular degeneration, diabetic retinopathy and macular telangiectasis. We have profiled the differential expression of microRNAs and analysed their target genes in transgenic mice in which induced Müller cell disruption results in
Eneida V Reis et al.
Parasitology international, 63(1), 120-126 (2013-10-24)
Vaults are ribonucleoproteins (13 MDa) highly conserved among lower and higher eukaryotes. Their association produces a complex composed of three proteins named Major Vault Protein (MVP), vault (PolyADP-ribose) polymerase (VPARP) and Telomerase-associated protein (TEP1), plus a small untranslated RNA. The
Jingwei Zhang et al.
Acta biomaterialia, 10(7), 3254-3263 (2014-04-01)
The microporosity of calcium phosphate (CaP) ceramics has been shown to have an essential role in osteoinduction by CaP ceramics after ectopic implantation. Here we show that it is not the microporosity but the size of surface microstructural features that
PPAR-? agonist GL516 reduces oxidative stress and apoptosis occurrence in a rat astrocyte cell line
Neurochemistry International (2019)
A new strategy for battling bacterial resistance: Turning potent, non-selective and potentially non-resistance-inducing biocides into selective ones
Ghanbar S, et al.
Nanomedicine: Nanotechnology, Biology, and Medicine (2018)

Articles

This page describes common challenges encountered when lysing cells and extracting proteins prior to Western blotting. Total protein concentration must be determined for these cell lysates. Variables affecting each of these steps are outlined below, as each could affect the sensitivity and reproducibility of the Western blot.

The era of high-throughput proteomics has recently blossomed due in large part to advances in the methods by which proteins and proteomes are analyzed. Improved fractionation techniques, combined with advances in mass spectrometry, have decreased concerns of sample complexity, and directed more focus towards high-throughput techniques.

The possible causes and potential remedies for challenges encountered in the immunoprecipitation-Western blot technique, which consists of cell lysis, formation of the antibody-antigen (immune) complex, precipitation of the immune complexes, and analysis by Western blotting.

Related Content

Protein quantification methods, reagents, and immunoassay technology for accurately measuring the protein concentrations in a variety of samples.

A wide variety of products for traditional protein quantitation techniques such as BCA and Bradford. Also, products for alternative assays such as Lowry, Micro Pyrogallol and FluoroProfile are also available for total protein determination.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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