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A2058

Sigma-Aldrich

Sieroalbumina

lyophilized powder, essentially IgG-free, low endotoxin, BioReagent, suitable for cell culture

Sinonimo/i:

Albumina bovina, Albumina siero bovino, BSA

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About This Item

Numero CAS:
Numero CE:
Numero MDL:
Codice UNSPSC:
12352202
NACRES:
NA.27

Origine biologica

bovine

Nome Commerciale

BioReagent

Saggio

≥95% (agarose gel electrophoresis)

Forma fisica

lyophilized powder

PM

~66 kDa

Purificato mediante

chromatography

Confezionamento

poly bottle of

Origine

New Zealand origin

tecniche

cell culture | mammalian: suitable

Impurezze

IgG free
≤0.05% IgG
≤1 EU/mg endotoxin

pH

7

Solubilità

water: soluble (40 mg/ml)

N° accesso UniProt

Temperatura di conservazione

2-8°C

Informazioni sul gene

bovine ... ALB(280717)

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Descrizione generale

Bovine serum albumin (BSA) is a non-glycosylated protein belonging to the serum albumins family. It is a globular protein with α-helix structure and 17-disulfide bonds. BSA has a molecular weight of 66 kDa consisting three domains and two subdomains under each. BSA shows structural similarity with human serum albumin.

Applicazioni

BSA is widely used as a blocking agent in immunoassays and immunodetection procedures, and also as a carrier protein for dilution of antibodies. Thus it is of concern to be aware of potential trace endogenous content of globulins / IgG in BSA, because of concerns that such trace globulins / IgG may serve as antigens for secondary antibodies in immunodetection work. This product undergoes testing for low IgG content / status as essentially immunoglobulin-free.

Select the right albumin for your application with the Albumin Selection Guide
BSA is widely used as a blocking agent in immunoassays and immunodetection procedures, and also as a carrier protein for dilution of antibodies. Thus it is of concern to be aware of potential trace endogenous content of globulins / IgG in BSA, because of concerns that such trace globulins / IgG may serve as antigens for secondary antibodies in immunodetection work. This product undergoes testing for low IgG content / status as essentially immunoglobulin-free.

Select the right albumin for your application with the Albumin Selection Guide.
Bovine Serum Albumin has been used to treat polyomavirus BK to serve as a control in testing intravenous immunoglobulins preparations.

Azioni biochim/fisiol

Si sospetta che alcuni epitopi conformazionali e di sequenza primaria di BSA siano allergeni nelle allergie umane a carne bovina e latte.
Bovine Serum Albumin (BSA) acts as a carrier protein for drugs, hormones and fatty acids. It is an essential component of cell culture medium. BSA serves as a blocking agent in enzyme linked immunosorbent assay (ELISA) and prevents non-specific binding of antigens and antibodies to the microtiter plates. Due to its high solubility, low cost and purity and interaction with surfactant, it is useful in pharmaceutical and cosmetic industry.

Caratteristiche e vantaggi

  • Tested for use in cell culture
  • Low endotoxin
  • Essentially IgG-free (immunoglobulin free)

Nota sulla preparazione

Ci si riferisce alla sieroalbumina come Frazione V. Questa designazione è presa dal metodo originale introdotto da Cohn per frazionare siero proteine usando la precipitazione in etanolo a freddo. La sieroalbumina è stata trovata da Cohn nella quinta frazione col suo metodo basato sull′etanolo. Da allora il termine “Frazione V” è stato usato da alcuni a prescindere dal metodo di preparazione. Altri hanno usato questa terminologia riferita a sieroalbumina purificata con metodi di frazionamento basati su etanolo che sono stati profondamente modificati dai tempi in cui Cohn li ha descritti. Sigma-Aldrich produce e distribuisce sieroalbumine purificate con vari metodi primari inclusi il metodo originale di frazionamento di Cohn, metodi modificati di frazionamento con etanolo, shock termico e cromatografia. Stadi successivi di purificazione possono comprendere cristallizzazione o filtrazione su carbone attivo.
Prepared by salt fractionation, ion exchange, and gel filtration chromatography.

Codice della classe di stoccaggio

11 - Combustible Solids

Classe di pericolosità dell'acqua (WGK)

WGK 3

Punto d’infiammabilità (°F)

Not applicable

Punto d’infiammabilità (°C)

Not applicable

Dispositivi di protezione individuale

Eyeshields, Gloves, type N95 (US)


Certificati d'analisi (COA)

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Articoli

This page segues to comprehensive insights on how serum albumin and other important cell culture components affect the performance of serum-free cell culture systems used for biomanufacturing heterologous proteins including monoclonal antibodies. The page introduces the in vitro chemistry and biochemistry of albumin. These insights may also be applied to ex vivo and tissue engineering applications.

rganoid culture products to generate tissue and stem cell derived 3D brain, intestinal, gut, lung and cancer tumor organoid models.

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