A9306
Bovine Serum Albumin
lyophilized powder, low endotoxin, ≥95% (agarose gel electrophoresis)
Synonym(s):
Albumin bovine serum, BSA, Bovine albumin
biological source
bovine
Assay
≥95% (agarose gel electrophoresis)
form
lyophilized powder
mol wt
~66 kDa
purified by
chromatography
origin
New Zealand origin
technique(s)
cell culture | mammalian: suitable
impurities
≤1 EU/mg endotoxin
pH
7
solubility
water: soluble (40 mg/ml)
UniProt accession no.
storage temp.
2-8°C
Gene Information
bovine ... ALB(280717)
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Biochem/physiol Actions
Certain conformational and primary-sequence epitopes of BSA are suspected allergens in human beef and milk allergies.
Preparation Note
Purified by chromatography
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
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Regulatory Information
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A Nadal et al.
The Journal of physiology, 509 ( Pt 3), 711-716 (1998-05-23)
1. Albumin causes calcium signals and mitosis in cultured astrocytes, but it has not been established whether astrocytes in intact brain also respond to albumin. The effect of albumin on intracellular calcium concentration ([Ca2+]i) in single cells was therefore studied
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