2. Immunology/Inflammation
  3. Toll-like Receptor (TLR)
  4. ODN 1668

ODN 1668, a class B CpG ODN (oligodeoxynucleotide), is a TLR-9 agonist. ODN 1668 is an immunostimulatory sequence and can be used as vaccine adjuvant. Sequence: 5'-tccatgacgttcctgatgct-3’.

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

DNA, d(P-thio)(T-C-C-A-T-G-A-C-G-T-T-C-C-T-G-A-T-G-C-T)

ODN 1668 Chemical Structure

CAS No. : 1186063-66-0

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Based on 1 publication(s) in Google Scholar

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ODN 1668 Related Antibodies

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Description

ODN 1668, a class B CpG ODN (oligodeoxynucleotide), is a TLR-9 agonist. ODN 1668 is an immunostimulatory sequence and can be used as vaccine adjuvant. Sequence: 5'-tccatgacgttcctgatgct-3’[1][2].

IC50 & Target

TLR9

 

In Vitro

ODN 1668 induces TNF-α secretion and promotes polyclonal B cell activation[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

ODN 1668 Related Antibodies
In Vivo

ODN 1668 (10 nmol) stimulates responses to protein antigen[1].
ODN 1668 (1 or 5 mg/kg; i.p. or s.c.; once) causes moderate fever and anorexia in rats[2].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: C57BW6 mice[1]
Dosage: 10 nmol
Administration: 300 μg OVA (ovalbumin) in PBS or liposomes containing OVA were injected with or without 10nmol ODN in the hind footpads of C57BW6 mice. A boost of the same inoculum was given at 2 weeks, and 1 week later blood was taken for serum antibody titering.
Result: Strongly potentiated the antibody response and induced class switching toward IgG2a and IgG2b. Showed B cell blast formation and a more than twofold increase in B7.2 (CD86) and IL-2 receptor-α (CD25) surface expression.
Animal Model: Male Wistar rats with body weights in the range of 175–200 g[2]
Dosage: 1 mg/kg or 5 mg/kg
Administration: Intraperitoneal and subcutaneous injection, once
Result: Caused moderate fever and anorexia. Induced a significant increase of IL-6. Increased expression of inflammatory genes and activated inflammatory transcription factors.
Molecular Weight

6364.10

CAS No.
Appearance

Solid

Color

White to off-white

Sequence

DNA, d(P-thio)(T-C-C-A-T-G-A-C-G-T-T-C-C-T-G-A-T-G-C-T)
SMILES

[DNA, d(P-thio)(T-C-C-A-T-G-A-C-G-T-T-C-C-T-G-A-T-G-C-T)]
Shipping

Room temperature in continental US; may vary elsewhere.
Storage

-20°C, sealed storage, away from moisture

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture)

Solvent & Solubility
In Vitro: 

H2O : ≥ 20 mg/mL (3.14 mM)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 0.1571 mL 0.7857 mL 1.5713 mL
5 mM --- --- ---
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
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Concentration
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Volume
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Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

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Volume (start)

V1

=
Concentration (final)

C2

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Volume (final)

V2

In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Calculation results:
Working solution concentration: mg/mL
This product has good water solubility, please refer to the measured solubility data in water/PBS/Saline for details.
The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only.If necessary, please contact MedChemExpress (MCE).
Purity & Documentation
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
H2O 1 mM 0.1571 mL 0.7857 mL 1.5713 mL 3.9283 mL

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

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ODN 1668 Related Classifications

Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

Keywords:

ODN 16681186063-66-0ODN1668ODN-1668Toll-like Receptor (TLR)immunostimulatory sequencevaccine adjuvantInhibitorinhibitorinhibit

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