A4161

Sigma-Aldrich

Bovine Serum Albumin

lyophilized powder, essentially globulin free, BioReagent, suitable for cell culture

Synonym(s):
Albumin bovine serum, Bovine albumin, BSA
CAS Number:
EC Number:
MDL number:
NACRES:
NA.27

Quality Level

biological source

bovine

product line

BioReagent

assay

≥99%

form

lyophilized powder

mol wt

~66 kDa

purified by

cold ethanol and heatshock fractionation

packaging

poly bottle of

origin

USA origin

application(s)

cell culture | mammalian: suitable

impurities

essentially globulin free

pH

7

solubility

water: soluble (50 mg/ml)

UniProt accession no.

storage temp.

2-8°C

Gene Information

bovine ... ALB(280717)

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Packaging

1, 5, 10, 100 g in poly bottle

Biochem/physiol Actions

Certain conformational and primary-sequence epitopes of BSA are suspected allergens in human beef and milk allergies.

Features and Benefits

  • Tested for use in cell culture
  • Essentially globulin free

Preparation Note

Purified by a combination of heat shock and ethanol fractionation
Serum albumin may be referred to as Fraction V. This naming convention is taken from the original Cohn method of fractionating serum proteins using cold ethanol precipitation. Serum albumin was found in the fifth ethanol fraction using Cohn′s method. Since then, the term "Fraction V" has been used by some to describe serum albumin regardless of the method of preparation. Others have used this term to describe serum albumin purified by ethanol fractionation methods that have been highly modified since the original Cohn method was described. Sigma-Aldrich manufactures and distributes serum albumins purified from a variety of primary methods including the true Cohn fractionation method, modified ethanol fractionation methods, heat shock and chromatography. Additional purification steps may include crystallization or charcoal filtration.

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

RIDADR

NONH for all modes of transport

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Guido Bolognesi et al.
Nature communications, 9(1), 1882-1882 (2018-05-16)
Constructing higher-order vesicle assemblies has discipline-spanning potential from responsive soft-matter materials to artificial cell networks in synthetic biology. This potential is ultimately derived from the ability to compartmentalise and order chemical species in space. To unlock such applications, spatial organisation...
Mark A Petersen et al.
Neuron, 96(5), 1003-1012 (2017-11-07)
Blood-brain barrier (BBB) disruption alters the composition of the brain microenvironment by allowing blood proteins into the CNS. However, whether blood-derived molecules serve as extrinsic inhibitors of remyelination is unknown. Here we show that the coagulation factor fibrinogen activates the...
Melisa Herrero et al.
Neuromolecular medicine, 21(3), 303-313 (2019-05-28)
Vanishing white matter (VWM) disease (OMIM#306896) is an autosomal recessive neurodegenerative leukodystrophy caused by hypomorphic mutations in any of the five genes encoding the subunits of eukaryotic translation initiation factor 2B (eIF2B). The disease is manifested by loss of cerebral...
Silvana Konermann et al.
Cell, 173(3), 665-676 (2018-03-20)
Class 2 CRISPR-Cas systems endow microbes with diverse mechanisms for adaptive immunity. Here, we analyzed prokaryotic genome and metagenome sequences to identify an uncharacterized family of RNA-guided, RNA-targeting CRISPR systems that we classify as type VI-D. Biochemical characterization and protein...
Balázs Rada et al.
Journal of immunology (Baltimore, Md. : 1950), 181(7), 4883-4893 (2008-09-20)
The dual oxidase-thiocyanate-lactoperoxidase (Duox/SCN(-)/LPO) system generates the microbicidal oxidant hypothiocyanite in the airway surface liquid by using LPO, thiocyanate, and Duox-derived hydrogen peroxide released from the apical surface of the airway epithelium. This system is effective against several microorganisms that...
Articles
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.
Read More

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