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.

Accelerate Your Research with YD Biolabs’ Oligo Labeling Services