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NR-14832  Mycobacterium tuberculosis, CDC1551, Cell Membrane Fraction
(Antigen Preparations)
Price: All BEI Resources products are provided
at no cost to registered researchers.
Organism: Mycobacterium tuberculosis
Description: CDC1551, Cell Membrane Fraction
Biosafety Level: 1
Availability Status: In Stock
Store at: -80°C or colder
Contributor: BEI Resources or NIH - TB Vaccine Testing and Research Materials Contract
Quantity limit per order for this item is 1. This item can be ordered twice a year. Orders over this limit will be sent to NIAID for approval before shipment.

NR-14832 is a preparation of the cell membrane fraction of Mycobacterium tuberculosis, strain CDC1551, and contains the cytoplasmic membrane and components of the outer lipid layer.

The culture was grown to late log phase in glycerol-alanine-salts medium, washed with PBS and inactivated by gamma irradiation. The bacilli were broken in a French Press pressure cell and unbroken cells were removed by low speed centrifugation. The cell wall was isolated by centrifugation at 27,000 × g. The supernatant was subjected to a 100,000 × g centrifugation for four hours and the resulting membrane pellet was washed with PBS, then suspended and dialyzed in 10 mM ammonium bicarbonate. Protein content was determined using the BCA protein assay.

Each vial contains approximately 1 mg of cell membrane fraction from M. tuberculosis, strain CDC1551 provided in 10 mM ammonium bicarbonate.
Citations: Acknowledgment for publications should read "The following reagent was obtained through BEI Resources, NIAID, NIH: Mycobacterium tuberculosis, Strain CDC1551, Cell Membrane Fraction, NR-14832."
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  • Customers located in the state of Hawaii will need to contact the Hawaii Department of Agriculture to determine if an Import Permit is required. A copy of the permit or documentation that a permit is not required must be sent to ATCC in advance of shipment.

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