Lyophilized QC Organisms
Biotium Methicillin Resistant Staphylococcus Aureus (MRSA) (332/423), CF594 conjugate, 0.1mg/mL
Staphylococcal enterotoxins represent a group of proteins, which are secreted by Staphylococcus aureus and cause the intoxication staphylococcal food poisoning syndrome. The illness characterized by high fever, hypotension, diarrhea, shock, and in some cases death. Their molecular masses range between 27 and 30 kDa. At present, seven enterotoxins are known, namely A, B, C1, C2, C3, D and E. Their amino acid sequences have been determined and it was shown that all are single chain polypeptides containing one disulfide bond formed by two half cysteine located in the middle of the polypeptide chain, which form the so called cysteine loop. Enterotoxins are extremely potent activator of T cells, stimulating the production and secretion of various cytokines, which mediate many of the toxic effects of these substances. Enterotoxins are super antigens, inducing polyclonal T cell activation by binding to the TCR and to the alpha chain of the MHC II molecule simultaneously.Primary an
Alkali Scientific Mannitol Egg Yolk Polymixin Agar 20mL Plate, 10/Pk
Mannitol Egg Yolk Polymyxin (MYP) Agar is a selective and differential medium commonly used for the isolation and enumeration of Bacillus cereus in food safety testing. Each plate contains approximately 20 mL of agar formulated according to ISO and FDA BAM standards. The medium incorporates polymyxin B to inhibit competing Gram negative bacteria, increasing selectivity for Bacillus species. Mannitol fermentation provides differential identification, as B. cereus typically does not ferment mannitol and therefore produces pink colonies on the phenol red indicator background. The inclusion of egg yolk emulsion allows detection of lecithinase activity, a characteristic enzyme produced by B. cereus. Lecithin breakdown forms opaque precipitation zones around colonies, aiding identification.
Sino Biological Recombinant Listeria monocytogenes PrKA Protein (full length, GST Tag)
Recombinant full-length Listeria monocytogenes serovar 1/2a PrkA was expressed by baculovirus in Sf9 insect cells using an N-terminal GST tag.
Cayman Chemical Precelys MInIlys Grey Fro 1ea
An accessory for the Precellys Minilys Personal Tissue Homogenizer (Item No. 10435)
Microbiologics™ EZ-FPC™ Microorganism Preparations
Lyophilized microorganism preparations deliver a predetermined assay value for qualitative or quantitative daily process controls
Microbiologics™ EZ-PEC™ Staphylococcus aureus NCIMB Number 9518
EZ-PEC packaging
Gibson Bioscience QC Controls: VRE Swab
Positive and negative controls available.
