
Custom Tagged Knock-In Immortalized & iPS Cells
Custom HiBiT-tagged knock-in cell lines for scalable, real-time endogenous protein quantification, visualization, and degradation studies.
Scalable, real-time endogenous protein analysis
Biological Accuracy
Easily tag endogenous proteins while preserving natural function and localization.
High-sensitivity
Consistently detect even low-abundance proteins for quantitative results in live or lysed cells.
Speed & scalability
Get as many custom-edited, luminescence-verified cell lines as you require in as little as 7 weeks.
Flexibility & confidence
Your desired cell lines and proteins, our guarantees and expertise to move your research forward.
Custom Design. CRISPR Precision. Seamless Delivery.
HiBiT is an 11–amino acid tag that enables real-time, quantitative readout of endogenous protein expression without disrupting protein function or localization. When paired with Promega’s LgBiT and Nano-Glo® detection system, EditCo’s robust, HiBiT-tagged CRISPR knock-ins transform your cells into powerful biosensors — perfect for drug discovery, cell-based assays, and protein quantification.
Our team of experts will design a precise knock-in strategy based on your gene of interest, cell line, and insertion location preference (C-terminal, N-terminal). Using RNP electroporation and synthetic guides, we maximize editing efficiency without introducing exogenous DNA elements.

Cells available both clonally or as highly efficient pools with >70% average knock-in efficiency

Protein Localization Studies: Track subcellular proteins in real-time and understand into how proteins move within cell compartments. Get insights into how location correlates with protein function.
Protein-Protein Interaction Mapping: Tag your target protein to explore how proteins form complexes with other molecules, contributing to signal transduction, regulation, and cellular processes.
Cell Line Generation: Create tagged cell lines for high-throughput drug screening or drug target validation, observing the effects of drugs on the tagged endogenous proteins in real-time.
Protein quantification: Track expression or degradation in response to various stimuli, disease conditions, or genetic mutations to understand underlying pathways and mechanisms.
Custom-Edited HiBiT-Tagged Cell Lines
Build or Buy? A Better Way to Tag Your Protein
EditCo provides across-the-board customization and confidence for both immortalized and iPS cells, regardless of scale, budget, gene popularity. While other HiBiT-tagged knock-in cell lines provide an easier solution than the internal burden of designing and editing tagged proteins yourself, they often have limitations or variable levels of support, flexibility, or guarantees.
| Criteria | Do-It-Yourself | CRO / Generic Provider | EditCo Custom Tag Service |
|---|---|---|---|
| Customization | Yes | Varies | Yes |
| Editing Efficiency | Varies | Varies | Yes |
| Quality Control | Varies | Varies | Yes |
| Licensing Coverage | No | No | Yes |
| Turnaround Time | No | No | Yes |
| Cost Predictability | No | Varies | Yes |
| Scalability | No | No | Yes |
| Support & Expertise | No | Varies | Yes |
| Guarantees | No | Varies | Yes |
Knock-in Cell Pools or Clones, Ready for Your Experiments
Deliverables
- Regular updates on your order's progress
- Edited cell pools or clones (2 vials with 500 thousand cells/vial)
- Mock-transfected cell pools (2 vials with 500 thousand cells/vial)
- Sequence of synthetic sgRNA used
- Primer sequences used for NGS sequencing
- NGS sequencing analysis report for each edited pool after expansion
- Comprehensive QC report that includes mycoplasma test (positive/negative), passage number, and analysis for add-on QC
Sequencing deliverable note: For non-human/mouse cell types an alignment between the Sanger sequencing data of the edited pool or clone and the knock-in sequence will be provided.
Features
| Cell Source |
|
|---|---|
| CRISPR Design |
|
| Add-Ons | QC: Luminescence |
Using CRISPR Knock-ins to Monitor Protein Abundance, Internalization, and Regulation
Determining Regulated Protein Abundance
Cellular protein levels shift in response to environmental signals or therapeutic intervention — and measuring those changes is essential for understanding biology and drug response. The rise of targeted protein degradation has unlocked a new modality for drug discovery, especially for previously “undruggable” targets.
By using CRISPR/Cas9 to insert a bioluminescent tag like HiBiT at the endogenous gene locus, researchers can quantify protein abundance with precision — no antibodies or overexpression required. These assays are highly sensitive, scalable, and compatible with both endpoint and live-cell formats, enabling real-time insight into native protein dynamics.


Internalization of Cell Surface Receptors
Many cell surface receptors are internalized upon ligand binding as part of their natural signaling cycle. By inserting a HiBiT tag at the extracellular terminus of the receptor using CRISPR/Cas9, you can monitor internalization and recycling in real time — without relying on antibodies or overexpression systems.

Monitoring Downstream Target Regulation
Upstream signaling events often influence the expression of downstream genes. With CRISPR/Cas9, you can insert a HiBiT tag at the endogenous locus of a downstream target and directly measure changes in protein expression. These live-cell assays enable real-time tracking of how pathway activity translates into functional protein output — all without overexpression or complex antibody workflows.

Resources
Integrating our core CRISPR expertise, high-quality reagents, and automated processes, we deliver the best edited cell-based models at any scale.

