Bovine Serum Albumin (5g)

SKU:
B4287-5G
  • $82.60

    • Description

    Bovine Serum Albumin

    heat shock fraction, protease free, suitable for hybridization, pH 7, ≥98%

    Synonym: Albumin bovine serum, BSA, Bovine albumin

    • CAS Number 9048-46-8

    •  EC Number 232-936-2

    •  MDL number MFCD00130384

    Description

    Packaging

    1, 5, 25 g in poly bottle

    Preparation Note

    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.

    Biochem/physiol Actions

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

    Properties

    grade for molecular biology
    product line BioReagent
    assay ≥98%
    form lyophilized powder
    mol wt mol wt ~66 kDa
    purified by heat shock fractionation
    packaging poly bottle of
    origin USA origin
    pH 7
    solubility water: soluble (40 mg/ml)
    foreign activity Protease free
    storage temp. 2-8°C