This product is not tested for fatty acids and is not considered fatty acid free. Many BSA products are available that are essentially fatty acid free, such as product A6003.
A2153
Seroalbúmina bovina
lyophilized powder, ≥96% (agarose gel electrophoresis)
Bovine Serum Albumin
Sinónimos:
Albúmina bovina, Albúmina sérica bovina, BSA
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Número CAS:
UNSPSC Code:
12352202
EC Number:
232-936-2
NACRES:
NA.27
MDL number:
eCl@ss:
32160409
Biological source:
bovine
Assay:
≥96% (agarose gel electrophoresis)
Form:
lyophilized powder
Technique(s):
ELISA: suitable, blood typing: suitable, microbiological culture: suitable
Impurities:
≤6.0% Loss on Drying
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Servicio técnico
¿Necesita ayuda? Nuestro equipo de científicos experimentados está aquí para ayudarle.
Permítanos ayudarlebiological source
bovine
Quality Level
assay
≥96% (agarose gel electrophoresis)
form
lyophilized powder
purified by
cold ethanol fractionation
packaging
poly bottle of
origin
USA origin
technique(s)
ELISA: suitable, blood typing: suitable, microbiological culture: suitable
impurities
≤6.0% Loss on Drying
loss
≤6%
pH
6.5-7.5 (1% in 0.15 M sodium chloride), 7
solubility
water: soluble (40 mg/ml)
UniProt accession no.
foreign activity
BT Virus, none detected, VSV Virus, none detected
storage temp.
2-8°C
Gene Information
bovine ... ALB(280717)
General description
La seroalbúmina bovina (BSA) es una proteína plasmática globular, no glucosilada α-helicoidal producida en el hígado bovino. Consta de tres dominios (I, II y III), cada uno de ellos con dos sub-dominios (A y B), dispuestos en una estructura en forma de corazón.
Application
La seroalbúmina sérica se ha utilizado-
- junto con la BTS (disolución de descongelamiento Beltsville), para la extensión del esperma durante el análisis de movimiento de los espermatozoides
- como componente del tampón Krebs-Ringer modificado (dmKRBT)
- en el análisis de retardo en gel[1]
- como bloqueante en inmunocitoquímica, inmunohistoquímica,(4) protocolo de inmunofluorescencia y enzimoinmunoanálisis adsorbente (ELISA) en sandwich
- como componente de la disolución salina tamponada con fosfato (PBS) para resuspender las células con el fin de analizarlas durante la citometría de flujo
- como patrón proteico para cuantificar las proteínas en muestras de tejido mediante el método de Bradford’
- para medir la actividad enzimática de la enzima 17β HSD
Biochem/physiol Actions
Se sospecha que ciertos epítopos conformacionales y de secuencia primaria son alérgenos en las alergias humanas a la leche y a la carne.
Preparation Note
A menudo denominada fracción V de Cohn, este producto se prepara mediante un método modificado del método de Cohn de fraccionamiento del etanol en frío.
La seroalbúmina puede denominarse también Fracción V. Esta convención de nomenclatura procede del método original de fraccionamiento de las proteínas séricas de Cohn en el que se utiliza precipitación en etanol frío. Utilizando dicho método, la seroalbúmina se encontró en la fracción quinta del etanol. Desde entonces, algunos han venido utilizando la expresión «Fracción V» para describir la albúmina sérica, al margen del método de preparación. Otros han utilizado este término para describir la seroalbúmina purificada por métodos de fraccionamiento en etanol que se han modificado mucho desde que se describió el método Cohn original. Sigma-Aldrich fabrica y distribuye seroalbúminas purificadas mediante una variedad de métodos primarios, entre ellos el verdadero método de fraccionamiento de Cohn, los métodos de fraccionamiento en etanol modificados, el fraccionamiento térmico y la cromatografía. Etapas de purificación añadidas pueden ser la cristalización o la filtración en carbón activado.
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Este artículo | |||
|---|---|---|---|
| biological source bovine | biological source bovine | biological source bovine | biological source bovine |
| origin USA origin | origin New Zealand origin | origin USA origin | origin USA origin |
| technique(s) ELISA: suitable, microbiological culture: suitable, blood typing: suitable | technique(s) flow cytometry: suitable | technique(s) ELISA: suitable | technique(s) immunohistochemistry: suitable |
| assay ≥96% (agarose gel electrophoresis) | assay ≥98% (agarose gel electrophoresis) | assay ≥98% (agarose gel electrophoresis) | assay ≥96% (agarose gel electrophoresis) |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 200 |
| form lyophilized powder | form lyophilized powder | form lyophilized powder | form lyophilized powder |
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Clase de almacenamiento
11 - Combustible Solids
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Número de artículo de comercio global
| SKU | GTIN |
|---|---|
| A2153-5KG | 04061833456132 |
| A2153-1KG | 04061835551149 |
| A2153-100G | 04061835517466 |
| A2153-10KG | 04061833693117 |
| A2153-50G | 04061835517473 |
| A2153-10G | 04061835551132 |
| A2153-5G | 04061833693124 |
| A2153-500G | 04061835551156 |
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I would like to confirm one point regarding the following product: BSA A2153 Does this product contain fatty acids (lipids), or is it fatty-acid free? Thank you for your assistance.
1 answer-
Helpful?
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As mentioned on the product page, it is suitable for ELISA, so can it be used for detecting IL-6 levels in rat serum samples using ELISA? If yes, what percentage will be ideal for the assay, and how will the working concentration be prepared?
1 answer-
The suitability of this product for ELISA has not been tested in-house and is likely based on literature or customer feedback. Therefore, specific recommendations for its use in detecting IL-6 levels in rat serum samples using ELISA cannot be provided. It is advised to consult the literature or conduct empirical testing to determine the appropriate usage in this application.
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Does this BSA contain any lipids?
1 answer-
This product is not tested for lipid content. There are several fatty acid-free options, however, there is no lipid-free albumin product available.
To discuss this further, please contact the Technical Service team who can assist you further. We kindly ask you to navigate to the link https://www.sigmaaldrich.com/techservice and click on "Product Technical Inquires" under the Products Section with all the required information so that a member of our team can reach out to you to assist further. Thank you.
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Is this BSA acetylated?
1 answer-
This product is not acetylated. This product is prepared by a modified method of the Cohn cold ethanol fractionation method.
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Can this product be used as protein standards in BCA assay?
1 answer-
It can be used as a protein standard.
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Is Product A2153, Albumin from bovine serum (BSA), suitable for cell culture?
1 answer-
We do not test A2153 for cell culture use, or for any specifications such as endotoxin content. Customers will have to exercise their own judgment as to whether they wish to use A2153 in cell culture, or can search the literature for publications that cite this product number.
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Is Product A2153, Albumin from bovine serum (BSA), suitable for use in immunoblotting experiments as a blocking agent?
1 answer-
We have not tested A2153 in quality control for use in immunoblotting applications as a blocking agent. Because it contains globulins, we would generally not recommend A2153 for use as a blocking agent.
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What is the Department of Transportation shipping information for this product?
1 answer-
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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Product A2153, Albumin from bovine serum (BSA), powder looks tan in color. Is this OK?
1 answer-
The tan color is within specifications. The color can vary because of factors such as concentration of a solution at the time of lyophilization.
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Is Product A2153, Albumin from bovine serum (BSA), suitable for use in ELISA?
1 answer-
We have not tested A2153 in quality control for use in ELISA applications. Because it contains globulins, we would generally not recommend A2153 for use in ELISA.
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