Merck
All Photos(5)

Documents

A4503

Sigma-Aldrich

Bovine Serum Albumin

cold ethanol fraction, pH 5.2, ≥96%

Sign Into View Organizational & Contract Pricing

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

biological source

bovine

Quality Level

Assay

≥96%

form

lyophilized powder

mol wt

~66 kDa

purified by

cold ethanol fractionation

origin

USA origin

technique(s)

ELISA: suitable
blood typing: suitable
microbiological culture: suitable

loss

≤5%

pH

5.2

solubility

water: soluble (40 mg/ml)

UniProt accession no.

foreign activity

BT Virus, none detected
VSV Virus, none detected

storage temp.

2-8°C

Gene Information

bovine ... ALB(280717)

Looking for similar products? Visit Product Comparison Guide

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
A3912A8022A3803
Bovine Serum Albumin cold ethanol fraction, pH 5.2, ≥96%

A4503

Bovine Serum Albumin

Bovine Serum Albumin heat shock fraction, pH 5.2, ≥96%

A3912

Bovine Serum Albumin

Bovine Serum Albumin heat shock fraction, pH 5.2, ≥96%

A8022

Bovine Serum Albumin

Bovine Serum Albumin heat shock fraction, lyophilized powder, essentially fatty acid free, ≥98% (agarose gel electrophoresis)

A3803

Bovine Serum Albumin

origin

USA origin

origin

USA origin

origin

USA origin

origin

USA origin

technique(s)

ELISA: suitable, microbiological culture: suitable, blood typing: suitable

technique(s)

blood typing: suitable, microbiological culture: suitable

technique(s)

ELISA: suitable, blocking: suitable, electrophoresis: suitable, western blot: suitable

technique(s)

cell culture | mammalian: suitable

biological source

bovine

biological source

bovine

biological source

bovine

biological source

bovine

Quality Level

300

Quality Level

200

Quality Level

300

Quality Level

200

form

lyophilized powder

form

lyophilized powder

form

lyophilized powder

form

lyophilized powder

General description

Bovine serum albumin is a model protein in various studies and is made up of 583 amino acids. It is a water-soluble protein with a molecular weight of 66.4kDa. Six α-helices form three homologous domains of BSA. Depending on pH, it undergoes reversible conformational isomerization. The native structure of the protein becomes reactive and flexible on heating.

Application

  • Bovine Serum Albumin has been used in solution prepared for the isolation of heart mitochondria.
  • It has been used in the cytotoxicity assay buffer.
  • It has been used for the induction of protein overload nephropathy in rats.

Biochem/physiol Actions

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

Preparation Note

Often referred to as Cohn fraction V; this product is prepared by a modified method of the Cohn cold ethanol fractionation method.
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

11 - 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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Documents related to the products that you have purchased in the past have been gathered in the Document Library for your convenience.

Visit the Document Library

Difficulty Finding Your Product Or Lot/Batch Number?

Product numbers are combined with Pack Sizes/Quantity when displayed on the website (example: T1503-25G). Please make sure you enter ONLY the product number in the Product Number field (example: T1503).

Example:

T1503
Product Number
-
25G
Pack Size/Quantity

Additional examples:

705578-5MG-PW

PL860-CGA/SHF-1EA

MMYOMAG-74K-13

1000309185

enter as 1.000309185)

Having trouble? Feel free to contact Technical Service for assistance.

Lot and Batch Numbers can be found on a product's label following the words 'Lot' or 'Batch'.

Aldrich Products

  • For a lot number such as TO09019TO, enter it as 09019TO (without the first two letters 'TO').

  • For a lot number with a filling-code such as 05427ES-021, enter it as 05427ES (without the filling-code '-021').

  • For a lot number with a filling-code such as STBB0728K9, enter it as STBB0728 without the filling-code 'K9'.

Not Finding What You Are Looking For?

In some cases, a COA may not be available online. If your search was unable to find the COA you can request one.

Request COA

Customers Also Viewed

Slide 1 of 7

1 of 7

Bovine Serum Albumin Cohn Fraction V, lyophilized powder, ≥96% (agarose gel electrophoresis)

Sigma-Aldrich

A5611

Bovine Serum Albumin

Bovine Serum Albumin lyophilized powder, essentially fatty acid free, ≥96% (agarose gel electrophoresis)

Sigma-Aldrich

A6003

Bovine Serum Albumin

Bovine Serum Albumin heat shock fraction, pH 5.2, ≥96%

Sigma-Aldrich

A8022

Bovine Serum Albumin

Bovine Serum Albumin fatty acid free, low endotoxin, lyophilized powder, BioReagent, suitable for cell culture, ≥96% (agarose gel electrophoresis)

Sigma-Aldrich

A8806

Bovine Serum Albumin

Bovine Serum Albumin heat shock fraction, pH 5.2, ≥96%

Sigma-Aldrich

A3912

Bovine Serum Albumin

Bovine Serum Albumin blood typing: suitable, Endonuclease, Exonuclease, Rnases, Proteinases free

Roche

10711454001

Bovine Serum Albumin

Bovine Serum Albumin lyophilized powder, essentially IgG-free, low endotoxin, BioReagent, suitable for cell culture

Sigma-Aldrich

A2058

Bovine Serum Albumin

Isabella Marcomini et al.
Cell reports, 24(10), 2614-2628 (2018-09-06)
Multiple pathways regulate the repair of double-strand breaks (DSBs) to suppress potentially dangerous ectopic recombination. Both sequence and chromatin context are thought to influence pathway choice between non-homologous end-joining (NHEJ) and homology-driven recombination. To test the effect of repetitive sequences
Cytochrome C effect on respiration of heart mitochondria: influence of various factors.
Toleikis A et al.
Bioscience Reports, 25, 387-387 (2005)
Rapamycin worsens renal function and intratubular cast formation in protein overload nephropathy.
Coombes JD et al.
Kidney International, 68, 2599-2599 (2005)
Sensitization of tumor cells to NK cell-mediated killing by proteasome inhibition.
Hallett WH et al.
Journal of Immunology, 180, 163-163 (2008)
Simona Ranallo et al.
Nature communications, 8, 15150-15150 (2017-05-10)
A wide range of molecular devices with nanoscale dimensions have been recently designed to perform a variety of functions in response to specific molecular inputs. Only limited examples, however, utilize antibodies as regulatory inputs. In response to this, here we

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.

Protocols

Spectrophotometric assay at 260 nm measures nuclease S1 activity, vital for nucleic acid research, with defined enzyme unit criteria.

This procedure applies to all products from heart muscle that have a specification for L-Lactic Dehydrogenase activity.

Objective: To standardize a procedure for the enzymatic assay of β-Glucuronidase.

Enzymatic assay of lipase type XIII from Pseudomonas sp. using a coupled enzyme system of glycerol kinase and glycerophosphate oxidase (EC 3.1.1.3)

See All

Related Content

Learn about bovine serum albumin (BSA) structure, molecular weight, function, solubility, how BSA is made, purification methods, applications and purchasing.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service