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77140 Sigma

Peptidoglycan from Staphylococcus aureus

cell wall component



Other Notes

Major component of the cell wall in gram positive organisms. Consists of a glycan backbone with alternating β 1-4 linked residues of N-acetyl-D-glucosamine and muramic acid. The immunological activities of bacterial peptidoglycans; Peptidoglycan types of bacterial cell walls and their taxonomic implications; Antibody response to peptidoglycan during staphylococcal infections


Bottomless glass bottle. Contents are inside inserted fused cone.

Price and Availability

Amplified Detection

Biomedical Applications
Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 

Frequently Asked Questions

Which document(s) contains shelf-life or expiration date information for a given product?
If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis. These documents are located on the product detail page under Useful Links & Tools. Click on the following link to search for a Certificate of Analysis. Please click the following link to see the details on our Product Dating Information.
How do I get lot-specific information or a Certificate of Analysis?
A Certificate of Analysis is available by lot number and can be obtained through our Advanced Search Option: http://www.sigmaaldrich.com/catalog/AdvancedSearchPage.do
How do I find price and availability?
There are several ways to find pricing and availability for our products.  Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers. 
What is the Department of Transportation shipping information for this product?
Transportation information can be found in Section 14 of the product's (M)SDS. To access the shipping information for this material, use the link on the product detail page for the product, or search here. 
Can Product 77140, Peptidoglycan, be solubilized in water?
No, the product is not soluble in water, or in other solvents for that matter. It forms a suspension in water.   http://www.sigmaaldrich.com/etc/medialib/docs/Sigma/Datasheet/6/77140dat.Par.0001.File.tmp/77140dat.pdf
Does Product 77140, Peptidoglycan, have a recommended retest date?
If a product has a recommended retest date this would be on the Certificate of Analysis found at our website. If no recommended retest date is found on the Certificate of Analysis, then the guarantee of quality is one year from the time of delivery for unopened bottles stored at the recommended temperature. See general information on product dating in the following link to our website: http://www.sigmaaldrich.com/sigma-aldrich/general_information/ProductDatingandShipping.pdf
How can solutions of Product 77140, Peptidoglycan, be stored?
Sigma has not evaluated the solution stability of solutions.  It is therefore recommended that fresh solutions be prepared.
What is a suggested working concentration for Product 77140, Peptidoglycan?
Suggested concentrations for use and cited references can be found on the data sheet at our website. http://www.sigmaaldrich.com/fluka/product%20information%20sheet/77140dat.pdf
My question is not addressed here, how can I contact Technical Service for assistance?
Use the option to the right to "Ask a Question" by email of a Technical Service Scientist.
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Protocols & Articles



The basic structure of peptidoglycan (PGN) contains a carbohydrate backbone of alternating units of N-acetylglucosamine (GlcNAc) and Nacetylmuramic acid, with the N-acetylmuramic acid residues cross-...
Glycobiology Analysis Manual, 2nd Edition
Keywords: Antibiotics, Antimicrobials, Biochemistry, Catalysis, Degradations, Diseases, Glycosylations, Infectious Diseases, Microbiology, Radioimmunoassay

Peer-Reviewed Papers


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