Enzymatic Oligonucleotide Modification Services
Revolutionizing Oligonucleotide Modification with Enzymatic Precision
Overview
Enzymatic Oligonucleotide Modification: Precision, Flexibility, and Sustainability
Modified oligonucleotides are indispensable across molecular biology, diagnostics, and therapeutics—driving applications from probe-based qPCR, dPCR, and NGS target enrichment to single-cell RNA analysis and innovative antibody-oligonucleotide conjugates (AOCs). Traditionally, oligonucleotide modification relies on chemical synthesis methods, which insert labels during solid-phase synthesis or post-synthetic modifications.
Yet, conventional chemical labeling presents significant challenges:
- Utilizes harsh organic solvents and reagents
- Sequence-dependent efficiency and byproduct formation
- Low-yield synthesis for long or structured oligos
- Limited flexibility for small-batch and diverse modifications
- High costs and environmental impact
A New Standard: Enzymatic Oligonucleotide Modification by YD Biolabs
YD Biolabs is setting a new standard with our Enzymatic Oligonucleotide Modification platform—delivering high-precision, flexible, and sustainable solutions. Our enzymatic approach operates in aqueous, non-toxic conditions, minimizing sequence bias and ensuring compatibility with oligonucleotides of varying length and structure.
Whether you’re creating advanced diagnostic probes, developing antibody-oligo conjugates, or engineering novel biosensors, YD Biolabs delivers a smarter, safer, and more efficient solution for oligo labeling.
Key Advantages of Our Enzymatic Oligonucleotide Modification
Eco-Friendly & Safe
No hazardous chemicals or solvents—our process embraces green chemistry principles
Fast & Efficient:
Complete labeling reactions within hours, maximizing your productivity
Customizable
Perfect for low-to-medium throughput projects with diverse oligo sequences
Flexible Design
Enables precise 5'-end, 3'-end, or dual-end modifications with dyes, biotin, linkers, or functional groups
Our Enzymatic Oligonucleotide Modification Platform
Modular and Customizable Enzymatic Labeling Solutions
Precision DNA Labeling for Every Application
Unlock the full potential of your oligonucleotides with our flexible enzymatic labeling platform. Our modular approach enables precise functionalization at the 5′, 3′, or both ends of single-stranded DNA (ssDNA), supporting a broad spectrum of research, diagnostic, and commercial applications.
Labeling Options
5′-End DNA Labeling
Robust functionalization ideal for immobilization, capture, or hybridization-based enrichment. Compatible with biotin, DBCO, azide, fluorescent dyes, and more.
3′-End DNA Labeling
Efficient introduction of custom groups such as biotin for target enrichment, blocker or quencher attachment. Perfect for NGS applications and probe development.
Dual-End DNA Labeling
Bifunctional labeling for advanced probes used in TaqMan assays, FRET analyses, or Antibody-Oligo Conjugates (AOCs).
Key Applications
qPCR / Digital PCR
Custom TaqMan probes with single or dual fluorophore labeling
NGS Target Enrichment
Adapter-labeled primers for multiplexed sequencing workflows
In Situ Hybridization (ISH)
Fluorophore- or hapten-labeled probes for tissue imaging
Antibody-Oligo Conjugates (AOCs)
ssDNA/dsDNA functionalized antibodies for imaging, delivery, or signal amplification
Affinity Purification
Biotin-labeled oligos for pulldown assays and bead-based separations
Molecular Barcoding
Oligos labeled with custom tags for sample multiplexing and identification
Diagnostics & Biosensors
Labeled probes for microarrays, point-of-care tests, and molecular diagnostics
Cell Tracking / Targeting
Functional oligos for intracellular labeling or controlled release systems
Seamless Workflow

Inquiry & Order
Share your project specs and labeling preference (5′, 3′, or dual). Our team will confirm compatibility and provide tailored solutions.

Sequence Submission
Submit oligo sequences securely. We’ll assess compatibility and recommend modifications for optimal performance.

Custom Labeling
Enzymatic labeling under gentle, optimized conditions ensures high efficiency with minimal bias—scalable for commercial workflows.

Purification & QC
Products are purified by spin columns. Optional QC (UREA-PAGE, CE, LC-MS) verifies purity and commercial standards.

Delivery of Products
Receive labeled oligos dried or in buffer, packaged for immediate use in manufacturing or research workflows.
Case Studies in Advanced Oligonucleotide Labeling:
1. High-Throughput 5’-Biotin Labeling Across Multiple Primers
We enable simultaneous enzymatic biotinylation of diverse primer sequences within a single reaction. This approach eliminates sequence bias and facilitates flexible, scalable modifications, streamlining high-throughput PCR workflows for your projects.
2. Multiplex Diagnostics Using Dual-Labeled TaqMan DNA Probes
Our custom-designed TaqMan probes carry dual labels—a 5’ fluorophore and a 3’ quencher—achieving multiplex amplification performance on par with singleplex assays. The optimized design ensures precise signal detection with no crosstalk, guaranteeing reliable diagnostic results.
3. Antibody-Conjugated Oligonucleotides (AOC) for Targeted Delivery
We offer dual-labeled double-stranded DNA oligos conjugated to antibodies such as Herceptin, bearing fluorescent tags Cy5 and FAM. Fluorescence microscopy confirms efficient intracellular delivery, supporting applications in targeted therapeutics and research.
