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NR-31384  Mycobacterium tuberculosis, HspX, Recombinant Protein Reference Standard
Price: All BEI Resources products are provided
at no cost to registered researchers.
Description: HspX, Recombinant Protein Reference Standard
Organism: Mycobacterium tuberculosis
Biosafety Level: 1
Availability Status: Discontinued (Please See Comments)
Store at: -80°C or colder
Contributor: BEI Resources or NIH - TB Vaccine Testing and Research Materials Contract
NR-31384 is no longer available.  HspX, Recombinant Protein Reference Standard from Mycobacterium tuberculosis, is now available as NR-49428.

NR-31384 is a recombinant form of the heat shock protein HspX (also referred to as a-crystalline) from Mycobacterium tuberculosis. The recombinant protein consists of the native protein sequence in addition to a hexa-histidine tag. HspX was expressed in Escherichia coli and purified using standard chromatographic techniques followed by endotoxin removal procedures.

Note: This protein is provided as a reference standard and should be ordered with the corresponding plasmid (pMRLB.15; NR-13274).

Each vial contains approximately 1 mg of lyophilized NR-31384 in 10 mM ammonium bicarbonate.

Note: NR-31384 is soluble in 100 mM to 500 mM aqueous buffered salt solutions, such as phosphate buffered saline. A 10 mM ammonium bicarbonate solution can also be used.
Citations: Acknowledgment for publications should read "The following reagent was obtained through BEI Resources, NIAID, NIH: HspX, Recombinant Protein Reference Standard, NR-31384."
Publications Citing
this Reagent:
Venkataswamy, M. M., et al. "In Vitro Culture Medium Influences the Vaccine Efficacy of Mycobacterium bovis BCG ." Vaccine 30 (2012): 1038-1049. PubMed: 22189700.
For a list of permits that may be required for shipping this product and to set the permit information preferences; please select a country from the drop down below.

  • 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.

Plasmid pMRLB.15 Containing Gene Rv2031c (Protein HspX) from Mycobacterium tuberculosis
Mycobacterium tuberculosis HspX, Recombinant Protein Reference Standard
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