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P6855

Sigma-Aldrich

Protein A–Gold

~2.5 A520 units/mL, aqueous glycerol suspension, 17-23 nm (monodisperse), 20 nm nominal (colloidal gold)

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About This Item

MDL number:
UNSPSC Code:
12352203

conjugate

gold conjugate

form

aqueous glycerol suspension

concentration

~2.5 A520 units/mL

particle size

17-23 nm (monodisperse)

nominal

20 nm (colloidal gold)

storage temp.

2-8°C

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General description

Protein A is a 42 kD, highly stable cell surface receptor isolated from Staphylococcus aureus which binds selectively and with high affinity to the Fc portion of IgG from various species.Protein A-gold is an electron dense, non-fading marker and can be used as a probe in electron microscopy (TEM and SEM), light microscopy and blotting. Protein A - 20 nm colloidal gold reacts specifically with IgG of human.

Application

Protein A-Gold can be used in dot blot. It can also be used to detect immunoglobulins.

Other Notes

Protein A, extracellular (P 6031), adsorbed to colloidal gold.

Physical form

Suspension in 0.02 M Tris-buffered saline, containing 1% bovine serum albumin, 30% glycerol, and 15 mM sodium azide.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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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