Cat. No.: HY-116673

TTK21

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TTK21 is an activator of the histone acetyltransferases CBP/p300. TTK21 passes the blood–brain barrier, induces no toxicity, and reaches different parts of the brain when conjugated to glucose-based carbon nanosphere (CSP). TTK21 has beneficial implications for the brain functions of neurogenesis and long-term memory.CSP-TTK21 can ameliorate Aβ-impaired long-term potentiation (LTP). CSP-TTK21 may enhance the transcription of genes that promote synaptic health and cognitive function. CSP-TTK21 is orally effective and leads to improvements in motor functions, histone acetylation dynamics in a spinal injury rat model.

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

Purity: 99.39%
CAS No.: 709676-56-2
Formula: C₁₇H₁₅ClF₃NO₂
Molecular Weight:357.75

Storage:

Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 6 months , -20°C, 1 month

TTK21 Chemical Structure

CAS No.: 709676-56-2

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

Biological Activity
- Description
- IC₅₀ & Target
- In Vitro
- In Vivo
Chemical Information
Solvent & Solubility
- In Vitro
- In Vivo
Purity & Documentation
References
Help & FAQs
Classifications
Bioz

Biological Activity

Description

TTK21 is an activator of the histone acetyltransferases CBP/p300. TTK21 passes the blood–brain barrier, induces no toxicity, and reaches different parts of the brain when conjugated to glucose-based carbon nanosphere (CSP). TTK21 has beneficial implications for the brain functions of neurogenesis and long-term memory^[1].CSP-TTK21 can ameliorate Aβ-impaired long-term potentiation (LTP). CSP-TTK21 may enhance the transcription of genes that promote synaptic health and cognitive function^[2]. CSP-TTK21 is orally effective and leads to improvements in motor functions, histone acetylation dynamics in a spinal injury rat model^[3].

IC₅₀ & Target^[1]

CBP/p300

All Histone Acetyltransferase Isoforms :

In Vitro

TTK21 (50-275 μM) is able to concentration-dependently activate CBP and p300 acetyltransferases and increase histone acetylation. Effectively activates CBP/p300 activity and increases the acetylation of histone H3 and H4. 100 μM TTK21 can promote the self-acetylation of p300^[1].
TTK21 (50-275 μM; 6-24 h) in Hela cells, can't effectively penetrate the cell membrane to enter the cell by itself. However, when combined with carbon nanosphere CSP, it is able to enter SH-SY5Y neuronal cells and significantly increase the acetylation level of histone H3, indicating that the CSP-TTK21 complex has the ability to penetrate the cell membrane^[1].
CSP-TTK21 (0.36 µg/ml; 1 h) can restor protein synthesis-dependent long-term potentiation (LTP) damage caused by Aβ (1-42) multimerst^[2].

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

RT-PCR^[2]

Cell Line:

Rat hippocampal CA1 area slices
Concentration:

CSP-TTK21 0.36 µg/ml
Incubation Time:

1 h
Result:

CSP-TTK21 upregulated certain genes whose expression was decreased under Aβ(1–42) treatment, such as genes involved in the Wnt signaling pathway. CSP-TTK21 also potentially downregulated genes associated with inflammation, helping to reduce the neuroinflammatory response caused by Aβ(1–42).

In Vivo

CSP-TTK21 ((TTK21 conjugated to carbon nanosphere, CSP-TTK21) 20 mg/kg; i.p.; single dose) can extend the memory duration^[1].
CSP-TTK21 (20 mg/kg; p.o; single dose) enhances long-term potentiation comparably to intraperitoneal injection, suggesting effective memory enhancement in Wild-type mice^[3].
CSP-TTK21 (10 mg/kg; p.o; weekly) promotes motor recovery after spinal cord injury in rats, and enhances the expression of regeneration-associated genes in the prefrontal cortex and cerebellum following spinal cord injury^[3].

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

Animal Model:

B57BL/6J male ^[1]
Dosage:

CSP-TTK21; 20 mg/kg; single dose
Administration:

i.p.
Result:

Increased histone acetylation significantly in the hippocampus and frontal cortex. CSP-TTK21 crossed the blood-brain barrier and was primarily detected in the brain, liver, and spleen. It promoted differentiation of newly generated neurons in the dentate gyrus.
Mice with CSP-TTK21 displayed a persistent memory of the platform location in a Morris water maze task for a longer period compared to controls, demonstrating enhanced long-term memory.

Animal Model:

Wild-type mice ^[3]
Dosage:

CSP-TTK21; 20 mg/kg; single dose
Administration:

p.o.
Result:

The administered compound crossed the blood-brain barrier, induced histone acetylation specifically H4K12ac and H3K14ac marks in the hippocampus, and did not alter basal synaptic transmission. It was found to enhance long-term potentiation comparably to intraperitoneal injection, suggesting effective memory enhancement through oral delivery.

Animal Model:

rats with spinal cord injury^[3]
Dosage:

CSP-TTK21; 10 mg/kg; weekly
Administration:

p.o.
Result:

Rats with CSP-TTK21 showed significant improvement in locomotion and rearing activity compared to controls. Histone acetylation was notably increased in the spinal cord, suggesting enhanced gene expression linked to regeneration and functional recovery. Enhanced histone acetylation levels (H4K12ac, H3K27ac, H3K9ac) were observed in the prefrontal cortex and cerebellum of rats with CSP-TTK21, indicating active epigenetic modifications that support neuronal regeneration and functional recovery.

Chemical Information

CAS No. 709676-56-2

Appearance Solid

Molecular Weight 357.75

Formula C₁₇H₁₅ClF₃NO₂

Color White to off-white

SMILES

ClC1=CC=C(C=C1C(F)(F)F)NC(C2=CC=CC=C2OCCC)=O

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Powder -20°C 3 years

4°C 2 years

In solvent -80°C 6 months

-20°C 1 month

Solvent & Solubility

In Vitro:

DMSO : 100 mg/mL (279.52 mM; ultrasonic and warming and heat to 60°C; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

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. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

View the Complete Stock Solution Preparation Table

Preparing Stock Solutions

View the Complete Stock Solution Preparation Table

Concentration Solvent Mass

1 mg

5 mg

10 mg

Concentration

Solvent

Mass

1 mM

2.7952 mL

13.9762 mL

27.9525 mL

5 mM

0.5590 mL

2.7952 mL

5.5905 mL

10 mM

0.2795 mL

1.3976 mL

2.7952 mL

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. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Molarity Calculator

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

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Molecular Weight Molecular Weight

Dilution Calculator

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In Vivo:

Select the appropriate dissolution method based on your experimental animal and administration route.

Stock Solution Working Solution

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:

To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for In Vivo experiments, it is recommended to prepare freshly and use it on the same day.

The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

Protocol 1

Add each solvent one by one: 10% DMSO 90% Corn Oil
Solubility: ≥ 2.5 mg/mL (6.99 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage Dosage
mg/kg

Animal Weight (Per Animal) Animal Weight (Per Animal)
g

Dosing Volume (Per Animal) Dosing Volume (Per Animal)
μL

Number of Animals Number of Animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.

Please enter your animal formula composition:

%
DMSO +

Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.

%
+

+
%
Tween-80 + +

%
Saline +

The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).

Working solution concentration: 0.22 mg/mL

Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL.

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) .

Tel: 609-228-6898
E-mail: [email protected]
Technical Support: [email protected]

Method for preparing in vivo working solution for animal experiments:
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
Saline .

Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution

If the continuous dosing period exceeds half a month, please choose this protocol carefully.

Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.

Purity & Documentation

Select Batch:

Purity: 99.98%

Assay: 99.98%

ee.: 99.98%

Data Sheet (281 KB)

SDS (393 KB)

English - EN (393 KB)

Français - FR (393 KB)

Deutsch - DE (393 KB)

Norwegian - NO (393 KB)

Español - ES (393 KB)

Swedish - SV (393 KB)

Italian - IT (393 KB)

Korean - KR (393 KB)

Portuguese - PT (393 KB)

COA (2659 KB)

Elemental Analysis Report (2659 KB)

HNMR (2659 KB)

CNMR (2659 KB)

RP-HPLC (2659 KB)

NP-HPLC (2659 KB)

MS (2659 KB)

LCMS (2659 KB)

IR (2659 KB)

GC (2659 KB)

OR (2659 KB)

SDS-PAGE (2659 KB)

SEC-HPLC (2659 KB)

Other Report (2659 KB)

Handling Instructions (2659 KB)

References

[1]. Chatterjee S, et al. A novel activator of CBP/p300 acetyltransferases promotes neurogenesis and extends memory duration in adult mice. J Neurosci. 2013;33(26):10698-10712. [Content Brief]

[2]. Singh A et al. Glucose derived carbon nanosphere (CSP) conjugated TTK21, an activator of the histone acetyltransferases CBP/p300, ameliorates amyloid-beta 1-42 induced deficits in plasticity and associativity in hippocampal CA1 pyramidal neurons. Aging Cell. 2022 Sep;21(9):e13675. [Content Brief]

[3]. Singh A, et al. Oral administration of a specific p300/CBP Lysine acetyltransferase activator induces synaptic plasticity and repairing spinal cord injury[J]. bioRxiv, 2023: 2023.10. 04.560982.

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.

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. 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

DMSO 1 mM 2.7952 mL 13.9762 mL 27.9525 mL 69.8812 mL

5 mM 0.5590 mL 2.7952 mL 5.5905 mL 13.9762 mL

10 mM 0.2795 mL 1.3976 mL 2.7952 mL 6.9881 mL

15 mM 0.1863 mL 0.9317 mL 1.8635 mL 4.6587 mL

20 mM 0.1398 mL 0.6988 mL 1.3976 mL 3.4941 mL

25 mM 0.1118 mL 0.5590 mL 1.1181 mL 2.7952 mL

30 mM 0.0932 mL 0.4659 mL 0.9317 mL 2.3294 mL

40 mM 0.0699 mL 0.3494 mL 0.6988 mL 1.7470 mL

50 mM 0.0559 mL 0.2795 mL 0.5590 mL 1.3976 mL

60 mM 0.0466 mL 0.2329 mL 0.4659 mL 1.1647 mL

80 mM 0.0349 mL 0.1747 mL 0.3494 mL 0.8735 mL

100 mM 0.0280 mL 0.1398 mL 0.2795 mL 0.6988 mL

TTK21 Related Classifications

HY-116673 Related Classifications

Epigenetics

Histone Acetyltransferase

Disease Areas

Respiratory Disease Neurological, Eye or Ear Disease

Pulmonary Disease

Lung Fibrosis

Neurological Disease

Powered by Bioz See more details on Bioz

Keywords

TTK21
709676-56-2
TTK 21
TTK-21
Histone Acetyltransferase
CBP/p300
histone acetyltransferases
blood–brain barrier
toxicity
neurogenesis
long-term memory
CSP
spinal injury rat
Alzheimer's disease (AD
Inhibitor
inhibitor
inhibit

Your Recently Viewed Products

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg
DMSO	1 mM	2.7952 mL	13.9762 mL	27.9525 mL	69.8812 mL
5 mM	0.5590 mL	2.7952 mL	5.5905 mL	13.9762 mL
10 mM	0.2795 mL	1.3976 mL	2.7952 mL	6.9881 mL
15 mM	0.1863 mL	0.9317 mL	1.8635 mL	4.6587 mL
20 mM	0.1398 mL	0.6988 mL	1.3976 mL	3.4941 mL
25 mM	0.1118 mL	0.5590 mL	1.1181 mL	2.7952 mL
30 mM	0.0932 mL	0.4659 mL	0.9317 mL	2.3294 mL
40 mM	0.0699 mL	0.3494 mL	0.6988 mL	1.7470 mL
50 mM	0.0559 mL	0.2795 mL	0.5590 mL	1.3976 mL
60 mM	0.0466 mL	0.2329 mL	0.4659 mL	1.1647 mL
80 mM	0.0349 mL	0.1747 mL	0.3494 mL	0.8735 mL
100 mM	0.0280 mL	0.1398 mL	0.2795 mL	0.6988 mL

TTK21

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TTK21

Epigenetics Compound Library

Histone Modification Research Compound Library

Anti-Pulmonary Fibrosis Compound Library

Bioactive Compound Library Max

MCE Bioactive Compound Library

Bioactive Compound Library

Protein Kinase Compound Library

High-Throughput Bioactive Compound Library

Posttranslational Modification Library

Lactylation Compound Library

All Histone Acetyltransferase Isoforms

Biological Activity

Chemical Information

Solvent & Solubility

Purity & Documentation

References

Help & FAQs

Complete Stock Solution Preparation Table