S. aureus PncB Assay Kit Plus

SKU:BHT16300100
Overview
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Colorimetric S. aureus PncB Assay Kit Plus for measuring nicotinate phosphoribosyltransferase activity and screening inhibitors of this Gram-positive drug target. Phosphate from the reaction is read at 650 nm in 384-well or 96-well plates or a cuvette. Enzyme included; 100 or 500 assays.
Assay Target S. aureus PncB activity
Detection Method Colorimetric
Detection Wavelength Absorbance 650 nm
Plate Format 384/96-well plate or cuvette
Assay Time About 65 min
Options selector
Catalog no. Size
PNCB100KS 100 assays
PNCB500KS 500 assays
Available Options

Select the variant that best fits your experiment. Availability and lead time may vary by option.

  • Options: Size: 100 assays, 500 assays
  • Lead time: options listed in "Availability Content"; other statuses may take longer.
  • Storage: Please contact us to confirm storage conditions.
  • Shipping: Shipped frozen.
  • Upon receipt: store at recommended temperature as soon as possible.
  • Sales terms and conditions: Please review prior to ordering.
Field Specification
Organism S. aureus
Applications
  • Enzyme Activity
  • Compound Profiling
Assay type
  • Enzyme Activity Assay
  • Inhibitor Screening Assay
Assay target S. aureus PncB activity
Assay area Antibacterial Drug Discovery
Target type Phosphoribosyltransferase
Detection method
  • Colorimetric
Detection wavelength Absorbance 650 nm
Instrument required Plate reader or spectrophotometer
Plate format 384/96-well plate or cuvette
Assay time
  • About 65 min
Storage Please contact us to confirm storage conditions.
Shipping Shipped frozen.
Catalog no. (Mfr.) PNCB100KS | PNCB500KS
Main SKU BHT16300100
Drug Target Assay Kit

Nicotinate phosphoribosyltransferase (NAPRTase, PncB) is part of the NAD salvage pathway. It makes nicotinic acid mononucleotide (NAMN) by transferring the phosphoribosyl group of phosphoribosyl pyrophosphate (PRPP) to nicotinate (NA), releasing pyrophosphate. PncB is a drug target in Gram-positive bacteria.

Pack Sizes

Both sizes include S. aureus PncB and pyrophosphatase. The only difference is the number of assays: PNCB100KS provides reagents for 100 assays and PNCB500KS for 500 assays (384-well format), with component volumes scaled accordingly.

100 assays (PNCB100KS) 100 assays; enzyme included
500 assays (PNCB500KS) 500 assays; enzyme included

Kit Components

Component 100 assays (PNCB100KS) 500 assays (PNCB500KS)
10 x Buffer 400 µl 2 ml
100 x NA (nicotinate) 35 µl 170 µl
100 x PRPP 35 µl 170 µl
100 x ATP 35 µl 170 µl
100 x S. aureus PncB (5000 nM) 35 µl 170 µl
100 x Pyrophosphatase (PPase, 10 U/ml) 35 µl 170 µl
Phosphate detection dye (also sold separately as MicroMolar Phosphate Assay Reagent, BHT16300173) 5 ml 25 ml

Assay Principle

Pyrophosphate released by PncB is converted into inorganic phosphate by the included pyrophosphatase, and the phosphate is detected with a dye by absorbance at 650 nm. Reactions can run in 384-well or 96-well plates, or in tubes with a cuvette readout.

Specifications

Assay Target S. aureus PncB activity
Target Type Phosphoribosyltransferase
Organism S. aureus
Assay Type Enzyme Activity Assay; Inhibitor Screening Assay
Detection Method Colorimetric
Detection Wavelength Absorbance 650 nm
Plate Format 384/96-well plate or cuvette
Instrument Required Plate reader or spectrophotometer
Assay Time About 65 min (60 min reaction + 5 min detection)
Linearity Test Start reactions at different time points and plot signal vs. time to define the linear range
Sizes 100 assays, 500 assays
Storage Please contact us to confirm storage conditions.
Shipping Shipped frozen.

Protocol

The manufacturer's protocol describes the procedure and reaction volumes.

  • S. aureus PncB Assay (PDF, see Documents): Covers catalog # PNCB100KS, PNCB500KS.

Safety & Handling

For Research Use Only (RUO). Not for use in diagnostic or therapeutic procedures. The S. aureus PncB Assay Kit Plus is shipped frozen. Follow standard laboratory safety practices when handling the reagents. Please contact us to confirm storage conditions.
Q.What does this kit measure?
A.It measures the activity of S. aureus nicotinate phosphoribosyltransferase (PncB), which joins nicotinate and PRPP and releases pyrophosphate. The pyrophosphate is converted to phosphate and read at 650 nm for activity tests and inhibitor screening.
Q.What is the difference between the options?
A.Both sizes include S. aureus PncB and pyrophosphatase. The only difference is the number of assays: PNCB100KS provides reagents for 100 assays and PNCB500KS for 500 assays (384-well format), with component volumes scaled accordingly.
Q.Is a protocol available?
A.Yes. The manufacturer's protocol (S. aureus PncB Assay, linked under Documents) covers catalog # PNCB100KS, PNCB500KS.
Q.How long does the assay take?
A.About 65 min (60 min reaction + 5 min detection). See the protocol for the exact steps.
Q.How should the kit be stored?
A.The S. aureus PncB Assay Kit Plus is shipped frozen. Please contact us for long-term storage conditions.

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