Skip to Content
Merck
All Photos(1)

Documents

S2014

Sigma-Aldrich

Staphylococcus aureus

buffered aqueous suspension, Wood 46 strain

Sign Into View Organizational & Contract Pricing


About This Item

UNSPSC Code:
12352202
NACRES:
NA.81

biological source

Staphylococcus aureus

sterility

Not processed or packaged aseptically

form

buffered aqueous suspension

composition

Cell suspension, ~10% wet weight/volume

storage temp.

2-8°C

General description

Staphylococcus aureus Wood 46 is protein A deficient and spa negative. It shares 98% to 99% genome identity with S.aureus and shows a lower surface expression of cell wall-associated protein A.

Application

(Not intended for use as a starter culture.)
Staphylococcus aureus has been used:
  • to mimic infection and induce fever in Pekin duck
  • to test its effect on hemocyte morphology in hemolymph samples from beetle Tenebrio molitor larva
  • in the antibacterial activity and minimum inhibitory concentration (MIC) assay with gedunin and 7-deacetoxy-7αhydroxygedunin potassium salt

Wood 46, a non-protein A producing S. aureus strain, prepared by the same method as P7155 (Protein A, crude cell suspension-Cowan strain), may be used as a control in protein A-immunoglobulin binding studies.

Biochem/physiol Actions

Staphylococcus aureus Wood 46 displays reduced virulence compared to the S. aureus. This isolate is useful in understanding protein A role in pathogenesis and virulence.

Physical form

Formalin-fixed crude cell suspension of essentially non-viable S. aureus (Wood 46 strain) in 0.05 M potassium phosphate buffer, pH 7.5, containing 0.2% sodium azide

Preparation Note

Produced in pure culture.

Analysis Note

This strain binds less than 10% of the rabbit IgG bound by P 7155 as assayed by a modification of the method of Kessler.

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’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Manasi Balachandran et al.
PloS one, 12(8), e0183913-e0183913 (2017-09-01)
Protein A in Staphylococcus aureus is encoded by the spa (staphylococcal protein A) gene and binds to immunoglobulin (Ig). The S. aureus strain Wood 46 has been variously reported as protein A-deficient and/or spa negative and used as a control
Manasi Balachandran et al.
Genome announcements, 5(13) (2017-04-01)
Here, we report the first complete genome sequence of the Staphylococcus aureus strain Wood 46. Wood 46 has played an important role in understanding the virulence and pathogenesis of S. aureus infections. This report will assist efforts in vaccine development against
Arkadiusz Urbański et al.
Scientific reports, 12(1), 17277-17277 (2022-10-15)
Tachykinins (TKs) are a group of conserved neuropeptides. In insects, tachykinin-related peptides (TRPs) are important modulators of several functions such as nociception and lipid metabolism. Recently, it has become clear that TRPs also play a role in regulating the insect
M Marais et al.
Poultry science, 90(6), 1234-1238 (2011-05-21)
Poultry, like mammals and other birds, develop fever when exposed to compounds from gram-negative bacteria. Mammals also develop fever when exposed to the constituents of viruses or gram-positive bacteria, and the fevers stimulated by these different pathogenic classes have discrete
S W Kessler
Journal of immunology (Baltimore, Md. : 1950), 117(5 Pt 1), 1482-1490 (1976-11-01)
Procedures are detailed for the rapid isolation of representative cell membrane antigens with protein A-bearing staphylococci as an adsorbent for IgG antibodies complexed with the antigens. Cell surface membrane proteins were radioiodinated and solubilized in nonionic detergent. Specific antisera were

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service