S2014
Staphylococcus aureus
buffered aqueous suspension, Wood 46 strain
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About This Item
UNSPSC Code:
12352202
NACRES:
NA.81
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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)
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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
Synthetic modification of gedunin and comparative antibacterial activity of gedunin and 7-deacetoxy-7alpha-hydroxygedunin potassium salt
Okhale SE, et al.
African Journal of Pure and Applied Chemistry, 6(14), 183-189 (2012)
G Kronvall et al.
Infection and immunity, 3(1), 10-15 (1971-01-01)
Protein A of Staphylococcus aureus can be detected on cell walls of intact bacteria by use of radioactively labeled myeloma globulin. Of 156 strains of S. aureus, 141 (90%) contained protein A. None of 47 S. epidermidis strains was positive
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
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
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