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08062

Sigma-Aldrich

Protein G′ from Streptococcus sp.

recombinant, expressed in E. coli

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Synonym(s):
IgG F(c)-Receptor
MDL number:
NACRES:
NA.26

biological source

bacterial (Streptococcus sp.)

Quality Level

recombinant

expressed in E. coli

form

lyophilized solid

mol wt

~30 kDa

capacity

~5 mg/mg, solid binding capacity (IgG)

storage temp.

−20°C

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M1421A9042A2074
IgA, Kappa from murine myeloma clone TEPC 15, purified immunoglobulin, buffered aqueous solution

M1421

IgA, Kappa from murine myeloma

form

lyophilized solid

form

buffered aqueous solution

form

buffered aqueous solution

form

lyophilized powder

mol wt

~30 kDa

mol wt

-

mol wt

-

mol wt

-

storage temp.

−20°C

storage temp.

−20°C

storage temp.

−20°C

storage temp.

2-8°C

recombinant

expressed in E. coli

recombinant

-

recombinant

-

recombinant

-

capacity

~5 mg/mg, solid binding capacity (IgG)

capacity

-

capacity

-

capacity

-

General description

Protein G, a cell wall protein, is obtained from group G streptococci. The extracellular part of this protein is made of two/three small domains or serum albumin binding (GA domains) and two/three immunoglobulin (IgG) binding domains (B domains).
Genetically engineered truncated protein G; retains affinity for IgG, but lacks albumin and Fab binding sites and membrane-binding regions.

Application

Protein G′ from Streptococcus sp. has been used in in vitro actin labeling assay.

Biochem/physiol Actions

Protein G can bind all the human and mouse IgG subclasses. It can bind to both the fragment crystallizable (Fc) and antigen-binding fragment (Fab) components of the antibody.

Physical form

lyophilized powder in a Tris-HCl buffer, pH 7.5

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


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