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Cat. No.: HY-185423

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PreQ1-DBCO

PreQ1-DBCO is a strained cyclooctyne commonly used in click chemistry. PreQ1-DBCO undergoes TGT-catalyzed guanine base exchange in DNA oligonucleotide stem-loops to replace guanine. PreQ1-DBCO functionalizes custom DNA oligonucleotide sequences. DBCO-modified DNA oligonucleotides are conjugated with azide peptides via strain-promoted azide-alkyne click chemistry (SPAAC). PreQ1-DBCO can be used in studies of hemophilia B (Christmas disease).

For research use only. We do not sell to patients.

Formula: C₃₄H₃₉N₇O₃
Molecular Weight:593.72

Storage:

Please store the product under the recommended conditions in the Certificate of Analysis.

PreQ1-DBCO Chemical Structure

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Use of MCE Products

Strong Fluorescence Signal / Multi-Disciplinary Applications / High Fluorescence Specificity

Biological Activity

Description

All DNA/RNA Synthesis Isoforms :

Chemical Information

Molecular Weight 593.72
Formula C₃₄H₃₉N₇O₃
SMILES

O=C(NCCCCCCNCC1=CNC(N=C(N2)N)=C1C2=O)CCCCC(N3CC4=C(C#CC5=C3C=CC=C5)C=CC=C4)=O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

Protocols

All Cell Biology

EdU Incorporation Assay (Click Chemistry-Based DNA Synthesis Measurement)
The EdU incorporation assay measures DNA synthesis by adding the thymidine analog 5-ethynyl-2′-deoxyuridine to cells or tissues, where it is incorporated into newly synthesized DNA during S phase. Incorporated EdU is detected by copper-catalyzed azide-alkyne cycloaddition, in which a fluorescent azide covalently reacts with the ethynyl group on EdU, allowing S-phase cells to be detected by fluorescence microscopy, flow cytometry, or high-content imaging. EdU detection does not require DNA denaturation or anti-BrdU antibody access, which preserves sample structure and improves compatibility with immunostaining and multiparameter cytometry compared with BrdU-based detection. EdU can be cytotoxic in a cell-type- and exposure-dependent manner, so pulse duration, concentration, and continuous-labeling designs should be validated for each cell type.

Purity & Documentation

Handling Instructions (2659 KB)

References

[1]. Mohamedshah ZY, et al. Highly efficient expression of DNA-peptide conjugates in growth-arrested cells. Nat Commun. 2026;17(1):1422. Published 2026 Jan 7. [Content Brief]

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Help & FAQs

How should lyophilized recombinant proteins be reconstituted and stored?

1. Before opening the cap, centrifuge the vial at 13000 rpm for 20-30 seconds. This step will ensure that any lyophilized powder that may have adhered to the cap or walls is collected at the bottom of the vial, minimizing the risk of product loss.

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100 mg

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