S. aureus Topoisomerase IV ATPase Assay Kit Plus

SKU:BHT16300089
Overview
Click light‑blue chips for details
S. aureus Topoisomerase IV ATPase Assay Kit Plus for high-throughput inhibitor screening against Staphylococcus topoisomerase IV. Phosphate from ATP hydrolysis is read by absorbance at 650 nm in 384-well plates. Enzyme, DNA, ATP and dye are included for 100 assays.
Assay Target S. aureus Topo IV ATPase activity
Detection Method Colorimetric
Detection Wavelength Absorbance 650 nm
Plate Format 384-well plate
Assay Time About 60 min
Options selector
Catalog no. Size
T4A-100KS 100 assays
Available Options

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

  • Options: Size: 100 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 Topo IV ATPase activity
Assay area Antibacterial Drug Discovery
Target type Topoisomerase
Detection method
  • Colorimetric
Detection wavelength Absorbance 650 nm
Instrument required Absorbance microplate reader
Plate format 384-well plate
Assay time
  • About 60 min
Storage Please contact us to confirm storage conditions.
Shipping Shipped frozen.
Catalog no. (Mfr.) T4A-100KS
Main SKU BHT16300089
Drug Target Assay Kit

Type II DNA topoisomerases use ATP hydrolysis to drive DNA supercoiling (gyrase) and decatenation (topoisomerase IV). Blocking that ATPase activity with compounds such as novobiocin also blocks the enzyme's biological role, so the ATPase reaction of S. aureus Topo IV is a practical readout when screening for topoisomerase inhibitors.

Kit Components

Component T4A-100KS
10 x Buffer 400 µl
100 x DNA 35 µl
100 x S. aureus Topo IV 33 µl
100 x ATP 35 µl
Phosphate detection dye 5 ml

The 100 x DNA stock is 1 mg/ml. Final reaction conditions: 20 mM Tris-HCl pH 8, 35 mM NH4OAc, 4.6% glycerol, 1 mM DTT, 0.005% Brij35, 8 mM MgCl2, 10 µg/ml DNA, 0.2 mM ATP and 50 nM topoisomerase.

Assay Principle

The kit detects the inorganic phosphate released when topoisomerase IV hydrolyzes ATP in the presence of DNA. A phosphate detection dye is added after the reaction and absorbance is read at 650 nm; inhibitors lower the signal.

Specifications

Assay Target S. aureus Topo IV ATPase activity
Target Type Topoisomerase
Organism S. aureus
Assay Type Enzyme Activity Assay; Inhibitor Screening Assay
Detection Method Colorimetric
Detection Wavelength Absorbance 650 nm
Plate Format 384-well plate
Instrument Required Absorbance microplate reader
Assay Time About 60 min
Size 100 assays
Storage Please contact us to confirm storage conditions.
Shipping Shipped frozen.

Protocol

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

  • DNA Topoisomerase ATPase Assays (PDF, see Documents): Covers catalog # T4A-100KS.

Safety & Handling

For Research Use Only (RUO). Not for use in diagnostic or therapeutic procedures. The S. aureus Topoisomerase IV ATPase 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 ATPase activity of S. aureus DNA topoisomerase IV by detecting the phosphate released from ATP hydrolysis in the presence of DNA. It is suited to high-throughput screening of topoisomerase inhibitors.
Q.What is included in the kit?
A.The S. aureus Topoisomerase IV ATPase Assay Kit Plus (100 assays) includes 10 x buffer (400 µl), 100 x DNA (35 µl), 100 x S. aureus Topo IV (33 µl), 100 x ATP (35 µl) and phosphate detection dye (5 ml).
Q.Is a protocol available?
A.Yes. The manufacturer's protocol (DNA Topoisomerase ATPase Assays, linked under Documents) covers catalog # T4A-100KS.
Q.How long does the assay take?
A.About 60 min. See the protocol for the exact steps.
Q.How should the kit be stored?
A.The S. aureus Topoisomerase IV ATPase Assay Kit Plus is shipped frozen. Please contact us for long-term storage conditions.

Can’t find the exact format you need? We can help you source or customize this S. aureus Topo IV ATPase activity assay — including larger pack sizes, bulk reagents, bulk enzyme, or a protocol adapted to your samples. Click Talk to a Scientist, email support@biohippo.com, or explore our Research Services. Our team will be in touch shortly.

Get a Quote

Please use this form for bulk quantity requests or customized products.

Contact Information

Product Information

Try Celltrypse Free – Request Your Sample Today

Experience the power of Celltrypse™, c-LEcta's innovative enzyme solution for gentle and efficient cell dissociation. Request your free sample and discover a superior alternative for your cell culture workflows.

Try Celltrypse Free – Request Your Sample Today

Try Celltrypse Free – Request Your Sample Today

Experience the power of Celltrypse™, c-LEcta's innovative enzyme solution for gentle and efficient cell dissociation. Request your free sample and discover a superior alternative for your cell culture workflows.

Try Celltrypse Free – Request Your Sample Today