Choosing a Reporter Assay that Fits Your Research

The right luciferase reporter can transform your research. Finding an assay that matches your experimental needs requires clarity on what matters most: sensitivity, throughput, signal duration. This guide will help you choose the right luciferase reporter system for your experimental goals.

Luciferase Reporters and Detection Reagents

We developed the first commercially available luciferase assay reagents in 1991. Since then, our scientists have continued engineering bioluminescent reporter technologies. Today this work spans genetic reporter assays, protein interaction studies, target engagement and live-cell imaging. We offer three distinct luciferase reporters (NanoLuc, firefly, Renilla) that are each engineered with different size, brightness and substrate properties to match specific experimental designs.

What's Your Bottleneck?

Before comparing reporters, consider what matters most for your specific research. Once you've identified your primary need, use the comparison tables below to narrow down your options.

  • Need the brightest signal for sensitive detection?
    NanoLuc® luciferase, a 19kDa enzyme, is approximately 100-fold brighter than firefly or Renilla at equivalent expression levels when maximum sensitivity is needed for low-expression targets or limited samples.

  • Running high-throughput screening and prefer speed over sensitivity?
    NanoLuc® and Firefly luciferase with homogenous "add-and-read" reagents (Nano-Glo, Bright-Glo, ONE-Glo) eliminate separate lysis steps and are designed for high-throughput, plate-based workflows.

  • Want to normalize reporter data with an internal control?
    Dual-reporter formats, such as pairing a firefly experimental reporter with Renilla or NanoLuc provide in-well options for a normalization control. These comprise the standard approach for transcriptional studies where transfection efficiency must be controlled.

  • Measuring dynamic changes over hours or days?
    Live-cell substrates (Endurazine, Vivazine, EnduRen) enable non-lytic, kinetic measurements from the same cell population over hours to days for time-course and longitudinal experiments.

How do signal strength and stability differ across luciferase assay systems? 

Dual-Luciferase® Assay Options

Firefly Luciferase Assay Options

Here we compared luminescence signals from HEK293 cells transfected with a 1:1:8 ratio of either TK-Rluc (Renilla):TK-Fluc (firefly):carrier DNA or TK-Nluc (NanoLuc):TK-Fluc:carrier DNA and assayed with NanoDLRâ„¢, DLRâ„¢ or Dual-Glo® Luciferase Assay Systems as indicated. The NanoDLRâ„¢ and Dual-Glo® reagents are homogenous assay systems with increased signal stability. The DLRâ„¢ reagent is a non-homogenous assay with a flash signal that decays rapidly.

Here we demonstrate luminescence signal over time from a dilution of QuantiLum® Recombinant Luciferase assayed with various firefly luciferase detection reagents as indicated. The Luciferase Assay System is a non-homogenous reagent that provides the brightest initial luminescence with flash kinetics that has rapid signal decay. The Bright-Glo™, ONE-Glo™, ONE-Glo™ EX and Steady-Glo® systems are homogenous reagents that show progressively decreasing levels of initial brightness with respective increases in signal half-life.

Dual-Luciferase® Assay Options

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Here, we compared luminescence signals from HEK293 cells transfected with a 1:1:8 ratio of either TK-Rluc (Renilla):TK-Fluc (firefly):carrier DNA or TK-Nluc (NanoLuc):TK-Fluc:carrier DNA and assayed with NanoDLR™, DLR™ or Dual-Glo® Luciferase Assay Systems as indicated. The NanoDLR(TM) and Dual-Glo(R) reagents are homogenous assay systems with increased signal stability. The DLR(TM) reagent is a non-homogenous assay with a flash signal that decays rapidly.

Firefly Luciferase Assay Options

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Here we demonstrate luminescence signal over time from a dilution of QuantiLum® Recombinant Luciferase assayed with various firefly luciferase detection reagents as indicated. The Luciferase Assay System is a non-homogenous reagent that provides the brightest initial luminescence with flash kinetics that has rapid signal decay. The Bright-Glo™, ONE-Glo™, ONE-Glo™ EX, and Steady-Glo® systems are homogenous reagents that show progressively decreasing levels of initial brightness with respective increases in signal half-life.

How do I choose a luciferase assay system?

Search by luciferase or assay type to compare options
Search Filter By
Luciferase Detected Assay Reagent Ideal For Signal Half-Life Sensitivity Number of Steps Live Cell Assay? Injectors Needed?
HiBiT, Firefly Nano-Glo® HiBiT Dual-Luciferase® Assay System (HiBiT NanoDLR) Homogenous Fluc/HiBiT dual-reporter detection. Provides high sensitivity for both direct protein quantification via HiBiT tagging and an internal control or downstream transcriptional readout via firefly. Compatible with low to high-throughput processing. 2 hours each ++++ (HiBiT)
++ (Fluc)
2 (lysate optional) No No
NanoLuc, Firefly Nano-Glo® Dual-Luciferase® Reporter Assay System (NanoDLR) Homogenous Fluc/Nluc dual-reporter detection with flexibility in choice of primary reporter. Provides highest sensitivity for both reporters when a stable signal is required and highest sensitivity option when Nluc is used as the primary reporter. Ideal for low to high-throughput processing when 2 primary reporters or internal control is needed. 2 hours each +++++ (Nluc)
++ (Fluc)
2
(lysate optional)
No Optional
Firefly,
Renilla
Dual-Luciferase® Reporter Assay System (DLR) Non-homogenous Fluc/Rluc dual-reporter detection. Requires lysate creation and 2 injectors for delivery. Ideal for small sample numbers when maximum Fluc sensitivity and internal control are needed. 10 minutes, 2 minutes ++++ (Fluc)
++++ (Rluc)
3 No Yes
2 injectors
Firefly,
Renilla
Dual-Glo® Luciferase Assay System Homogenous Fluc/Rluc dual-reporter detection with reduced sensitivity and stable signal. Ideal for high-throughput processing of Fluc reporter when Rluc is used as the internal control. 2 hours each +
(Fluc/Rluc)
2 No No
NanoLuc Nano-Glo® Luciferase Assay System Homogenous Nluc detection with bright, stable signal. Ideal for low to high-throughput processing when maximum sensitivity is required. 2 hours +++++ 1 No, unless used with secNluc No
NanoLuc Nano-Glo® Live Cell Assay System Live cell Nluc detection with brightest signal. Ideal for single timepoint analysis when high sensitivity is needed in a non-lytic assay. Up to 2 hours ++++ 1 Yes No
NanoLuc Nano-Glo® Vivazine™ Live Cell Substrate Live cell Nluc detection with intermediate signal and stability. Ideal for kinetic analysis lasting multiple hours. Up to 24 hours +++ 1 Yes No
NanoLuc Nano-Glo® Endurazine™ Live Cell Substrate Live cell Nluc detection with most stable signal. Ideal for multi-day kinetic analysis. Up to 72 hours ++ 1 Yes No
Firefly Luciferase Assay System Non-homogenous Fluc detection requiring lysate creation and injector delivery. Ideal for small sample numbers when maximum Fluc sensitivity is needed. 10 minutes ++++ 2 No Yes
Firefly Bright-Glo® Luciferase Assay System Homogenous Fluc detection offering the brightest signal and shortest half-life. Ideal for high-throughput processing when high sensitivity is required. 30 minutes +++ 1 No No
Firefly ONE-Glo™ Luciferase Assay System Homogenous Fluc detection with moderate signal and half-life. Ideal for high- or ultrahigh-throughput processing. 45 minutes ++ 1 No No
Firefly ONE-Glo™ EX Luciferase Assay System Homogenous Fluc detection with moderate signal and half-life and improved storage stability. Ideal for high- or ultrahigh-throughput processing and repeat use. Also used to detect Fluc in NanoDLR allowing consistent use between single and dual assays. 2 hours ++ 1 No No
Firefly Steady-Glo® Luciferase Assay System Homogenous Fluc detection with maximum signal stability and reduced signal. Ideal for high-throughput applications when extended luminescence is required. 5 hours + 1 No No
Renilla Renilla Luciferase Assay System Non-homogenous Rluc detection requiring lysate creation and injector delivery. Ideal for small sample numbers when maximum Rluc sensitivity is needed. 2 minutes ++++ 2 No Yes
Renilla Renilla-Glo Luciferase Assay System Homogenous Rluc detection with increased signal stability. Ideal for high-throughput processing. 40+ minutes ++ 1 No No
Renilla ViviRen™ Live Cell Substrate Live cell Rluc detection with highest signal. Ideal for single time point or short non-lytic analysis when highest sensitivity is required. 10 minutes +++ 1 Yes No
Renilla EnduRen™ Live Cell Substrate Live cell Rluc detection with greatest stability. Ideal for extended kinetic analysis. Up to 24 hours + 1 Yes No

What should I consider when designing a bioluminescent reporter assay? 

Interested in learning more about reporter assay design? Our two-part "Designing a Bioluminescent Reporter Assay" guide will walk you through basic considerations for choosing the optimal experimental reporter, experimental design and data analysis methods.