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A3608

Sigma-Aldrich

Bovine Serum Albumin

lyophilized powder, ≥96% (agarose gel electrophoresis)

Synonym(s):
Albumin bovine serum, Bovine albumin, BSA
CAS Number:
EC Number:
MDL number:
NACRES:
NA.21

Quality Level

biological source

bovine

assay

≥96% (agarose gel electrophoresis)

form

lyophilized powder

mol wt

~66 kDa

purified by

heat shock fractionation

packaging

poly bottle of

origin

New Zealand origin

application(s)

immunoprecipitation (IP): suitable

pH

7
~7 (7 % (w/v) in H2O)

solubility

water: slightly soluble

UniProt accession no.

storage temp.

2-8°C

Gene Information

bovine ... ALB(280717)

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General description

Bovine serum albumin (BSA) is a 66 kDa protein consisting of three domains with two subdomains under each. It is a α-helical, globular and non-glycosylated protein. It belongs to the serum albumins family. It has 17-disulfide bonds. Albumin is the most abundant plasma protein in humans.

Application

Bovine Serum Albumin has been used:
  • as a component in chromatin immunoprecipitation (ChIP IP) buffer
  • in combination with electrospun polystyrene (ESPS) fiber mats for fluorescence microscopy
  • as a component of blocking solution and immobilzation studies
  • as a component in phosphate buffer saline (PBS)

Packaging

10, 50, 100, 500 g in poly bottle
1 kg in poly drum

Biochem/physiol Actions

Bovine Serum Albumin (BSA) is a transporter for drugs, hormones and fatty acids. High levels of albumin is associated with dehydration. Albumin turnover is seen in infants with iron deficiency anemia.
Certain conformational and primary-sequence epitopes of BSA are suspected allergens in human beef and milk allergies.

Preparation Note

Derived from New Zealand source serum
Prepared using heat shock 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.

Storage Class Code

13 - Non Combustible Solids

WGK Germany

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

An Interleukin-23-Interleukin-22 Axis Regulates Intestinal Microbial Homeostasis to Protect from Diet-Induced Atherosclerosis
Fatkhullina AR, et al.
Immunity, 49(5), 943-957 (2018)
Rapid multiplex microfiber-based immunoassay for anti-MERS-CoV antibody detection
Hoy CFO, et al.
Sensing and Bio-Sensing Research, 100304-100304 (2019)
Micro-chromatin Immunoprecipation (mu ChIP) Protocol for Real-time PCR Analysis of a Limited Amount of Cells
Gillotin S and Guillemot F
Bio-protocol, 6(12), 18-23 (2016)
Structural changes during the unfolding of Bovine serum albumin in the presence of urea: A small-angle neutron scattering study
Das A, et al.
Pramana, 63(2), 363-368 (2004)
Bovine serum albumin interactions with metal complexes
Topalua T, et al.
Clujul Medical (1957), 87(4), 215-215 (2014)

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