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Safety Information

B7542

Sigma-Aldrich

Maleimide Activated BSA

Synonym(s):

Maleimide Activated Bovine Serum Albumin

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About This Item

UNSPSC Code:
12352111
NACRES:
NA.32

biological source

bovine

Quality Level

sterility

non-sterile

form

lyophilized powder

technique(s)

ELISA: suitable
bioconjugation: suitable

UniProt accession no.

storage temp.

−20°C

Gene Information

bovine ... ALB(280717)

General description

Maleimide Activated BSA is provided in lyophilized, ready to-use form, eliminating the need for time-consuming activation and purification steps of the carrier protein. Maleimide Activated BSA contains approximately 5-15 maleimide groups for each BSA molecule.. The conjugation reaction with a cysteine containing peptide is performed at pH 6.6-7.0. The extent of conjugation can then be determined by a colorimetric assay with Ellman′s reagent) to detect unreacted thiol groups in the cysteine-containing peptide.

Application

Maleimide Activated BSA has been used in peptide conjugation.
Maleimide-activated BSA (mBSA) has reactive maleimide groups on its surface available for conjugation with a cysteine-containing peptide or a thiol-containing hapten. The reaction of the maleimide group and the thiol group proceeds rapidly and selectively under mild coupling conditions (pH 6.5-7.5) to yield a stable, covalently linked peptide-protein conjugate that may be used in immunization protocols or in antibody screening methods.

Physical form

Each vial contains 5 mg of Maleimide Activated BSA lyophilized from 10 mM sodium phosphate buffer, pH 6.6, with 0.115 mM NaCl, 1 mM EDTA, and 40 mM sucrose as stabilizer.

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

B7542-VAR:
B7542-BULK:
B7542-5MG-PW:
B7542-5MG:


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’.

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