This product is prepared by heat-shock fractionation which tends to yield a higher purity of Fraction V Albumin. The product is not tested for the presence of globulins or fatty acids on a lot-to-lot basis. However, historical information indicates the presence of fatty acids with low to no IgG detected. Alpha-globulin has been detected in the past.
A3294
Bovine Serum Albumin
heat shock fraction, protease free, pH 7, ≥98%
Bovine Serum Albumin
Synonym(s):
Albumin bovine serum, BSA, Bovine albumin
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50 G
$445.00
100 G
$705.00
500 G
$2,710.00
1 KG
$4,030.00
About This Item
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Product Name
Bovine Serum Albumin, heat shock fraction, protease free, pH 7, ≥98%
biological source
bovine
assay
≥98%
form
lyophilized powder
mol wt
~66 kDa
purified by
heat shock fractionation
packaging
poly bottle of
origin
USA origin
technique(s)
ELISA: suitable
blood typing: suitable
microbiological culture: suitable
impurities
protease, none detected
loss
≤5%
pH
7
solubility
water: soluble (40 mg/ml)
UniProt accession no.
foreign activity
BT Virus, none detected
VSV Virus, none detected
storage temp.
2-8°C
Quality Level
Gene Information
bovine ... ALB(280717)
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This Item | A7030 | A8022 | A9647 |
|---|---|---|---|
| origin USA origin | origin USA origin | origin USA origin | origin USA origin |
| assay ≥98% | assay ≥98% | assay ≥96% | assay ≥98% |
| biological source bovine | biological source bovine | biological source bovine | biological source bovine |
| technique(s) ELISA: suitable, microbiological culture: suitable, blood typing: suitable | technique(s) ELISA: suitable, blood typing: suitable, ligand binding assay: suitable | technique(s) ELISA: suitable, blocking: suitable, electrophoresis: suitable, western blot: suitable | technique(s) immunocytochemistry: suitable |
| Quality Level 300 | Quality Level 300 | Quality Level 300 | Quality Level 300 |
| form lyophilized powder | form lyophilized powder | form lyophilized powder | form lyophilized powder |
Biochem/physiol Actions
Certain conformational and primary-sequence epitopes of BSA are suspected allergens in human beef and milk allergies.
Features and Benefits
- Heat shock fractionated
- Protease-free
Application
General description
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.
Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Related Content
Learn about bovine serum albumin (BSA) structure, molecular weight, function, solubility, how BSA is made, purification methods, applications and purchasing.
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Does BSA 3294 Contain Fatty acid and globulin?
1 answer-
Helpful?
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こちらのBSAはシグナル配列(N末端からの18AA)が切断されているものと考えてよいでしょうか。
1 answer-
The signal sequence is not determined for Bovine Serum Albumin products. The signal/target sequence for BSA is most often associated with the preproalbumin in vivo. See the link below, section 3.1, for further information.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3401331/Helpful?
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