Name: GFP Purified Protein
SKU: 000033P
Price: 111.17 USD
Availability: InStock

<h2>What are Bioluminescence Assays?</h2>
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Bioluminescence assays use luciferase enzymes to convert specific substrates into light, producing a highly sensitive readout for gene expression studies or cell viability measurements. In ATP-based systems, light output correlates with cellular ATP levels and therefore cell viability.
Firefly luciferase uses luciferin along with ATP, magnesium, and oxygen to generate a green/yellow signal with a decay time of roughly 12 minutes. Renilla luciferase uses coelenterazine and oxygen, producing a faster-decaying blue signal and not requiring ATP.
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<h2 dir="ltr">What you will find:</h2>
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Luciferase Assay Systems: High-performance kits like the Luciferase Assay Kit (G287), designed for rapid, flash-type bioluminescence detection that provides a direct and sensitive measure of gene induction.
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Fluorescent Control Proteins: Premium GFP Purified Protein (000033P) available as a reliable internal standard or calibration marker to validate transfection efficiency and protein localization across diverse imaging platforms.
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<h2>How to Choose a Bioluminescence Assay System</h2>
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Decide Between Single and Dual-Reporter Designs
Dual-reporter systems combine a test luciferase with a constitutively expressed control luciferase, allowing normalization for variability in transfection efficiency, cell number, and viability.
Choose NanoLuc for Maximum Sensitivity
NanoLuc is an engineered 19 kDa luciferase that produces approximately 100&ndash;150&times; brighter signal than firefly or Renilla systems and uses furimazine as its substrate.
Match Substrate and Cofactor Requirements
Firefly luciferase requires luciferin, ATP, Mg2+, and oxygen, while Renilla luciferase requires coelenterazine and oxygen only, which is important when ATP levels are part of the experimental variable.
Consider Destabilized Reporters for Faster Response
Destabilized luciferase variants have shorter intracellular half-lives, allowing more rapid detection of transcriptional changes with reduced signal lag.
Use ATP-Based Assays for Viability
ATP-based bioluminescence assays measure cellular viability rather than gene expression, as light output reflects ATP levels in metabolically active cells.
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<h2>Specifications Context</h2>
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The Dual-Luciferase Reporter system combines firefly and Renilla luciferase to allow sequential measurement using a luciferase inhibitor for normalization of experimental variability.
As of 2026, NanoLuc-based systems are increasingly used beyond traditional reporter gene assays, including protein interaction and target engagement studies due to their high brightness and low background.
Enhance your signal detection&mdash;<a href="https://mbpinc.net/contact-us">contact the MBP team</a> today for a quote on our professional bioluminescence solutions.

Bioluminescence Assays and Reagents

QC - CoA, Lot VG1010

GFP Purified Protein

000033P by Applied Biological Materials is 50 µg of lyophilized affinity-purified recombinant eGFP with an N-terminal 6×His tag, purified by IMAC. For SDS-PAGE standards, western blot controls, fluorometry calibration, and transfection efficiency controls. Stable ≥1 year at −20°C (lyophilized); 1 week at 2–8°C post-reconstitution.