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M1778

Sigma-Aldrich

Mucin from porcine stomach

Type III, bound sialic acid 0.5-1.5 %, partially purified powder

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Synonym(s):
MUC
CAS Number:
84082-64-4
EC Number:
282-010-7
MDL number:
MFCD00131629
NACRES:
NA.61

biological source

Porcine stomach

type

Type III

form

partially purified powder

composition

bound sialic acid, 0.5-1.5%

technique(s)

microbiological culture: suitable

solubility

NaOH: soluble 20 mg/mL

storage temp.

2-8°C

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General description

Mucins or mucus glycoproteins are the main macromolecular components of mammalian mucus. It was also used in a study to evaluate the sputum smears concentrated by cyto-centrifugation for detection of acid-fast bacilli.

Application

Mucin from porcine stomach was used in studies on the binding site of the galactose-specific agglutinin PA-IL from Pseudomonas aeruginosa.

Biochem/physiol Actions

Mucus forms the protective cover for all epithelial surfaces. The major structural component of mucus is gel-forming mucins. The mucus layer covering the intestinal epithelium has the MUC2 mucin as its central molecule. MUC2 is produced by goblet cells.

Preparation Note

Prepared according to the method of Glenister, et al., for use in complex growth media for dental plaque bacteria.

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

Regulatory Information

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  1. 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.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. 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.

  4. 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. 

  5. What does the "Type" designation in Mucin from porcine stomach mean?

    The type designation does not have any particular biological significance.  It is used to emphasize differences in the listings of this product.

  6. Is Product M1778, Mucin from porcine stomach, a purified preparation of mucin?

    This product is a partially purified preparation of mucin based on the method of Glenister cited on the product's webpage.

  7. How can I solubilize Product M1778, Mucin from porcine stomach?

    Mucin is not readily soluble in aqueous solutions. Turbid "solutions" will form at about 5 mg/mL in 0.1 M acetate buffer, pH 5.0. To try to increase the solubility, one might try further dilution and sonication, but we have not tried this in our labs.

  8. What is the molecular weight of Product M1778, Mucin from porcine stomach?

    This product is partially purified from crude mucin, M2378.  Sigma has not determined the molecular weight of this product. Neither has the sugar and amino acid composition been determined.

  9. What are the differences between Mucin from porcine stomach Products M2378 and M1778?

    Product No. M2378 is a crude mucin preparation. Product No. M1778 is a partially purified powder prepared according to the method described in Glenister, D.A. and Salmon. K. Microbial Ecol. in Health & Disease 1, 31, (1988). The amount of bound sialic acids are also different. Please refer to the specification sheets on our website.

  10. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

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Helen Rose et al.
The Journal of antimicrobial chemotherapy, 63(3), 502-510 (2009-01-21)
The Burkholderia cepacia complex (Bcc) species are important opportunistic pathogens with intrinsic antibiotic resistance. They are also well known as contaminants of disinfectants, yet their biocide susceptibility has not been studied in detail. We investigated Bcc biocide susceptibility and correlated
Kenny C Mok et al.
mBio, 11(6) (2020-12-10)
The beneficial human gut bacterium Akkermansia muciniphila provides metabolites to other members of the gut microbiota by breaking down host mucin, but most of its other metabolic functions have not been investigated. A. muciniphila strain MucT is known to use
Leyuan Li et al.
Microbiome, 8(1), 33-33 (2020-03-13)
Human-targeted drugs may exert off-target effects or can be repurposed to modulate the gut microbiota. However, our understanding of such effects is limited due to a lack of rapid and scalable assay to comprehensively assess microbiome responses to drugs. Drugs
Jonathan E Phillips et al.
Journal of pharmacological and toxicological methods, 53(2), 160-167 (2006-03-02)
A method to measure the mucin concentration in bronchoalveolar lavage (BAL) fluid was developed to aid efforts to identify pharmacologically the mechanisms that modulate pathophysiological mucin secretion. Mucins are the major macromolecular components of mucus. In the airways, mucus is
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