PeptideDB

TTK21 709676-56-2

TTK21 709676-56-2

CAS No.: 709676-56-2

TTK21 is an activator of the histone acetyltransferase CBP/p300. When combined with glucose-based carbon nanospheres (CS
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TTK21 is an activator of the histone acetyltransferase CBP/p300. When combined with glucose-based carbon nanospheres (CSP), TTK21 can pass through the BBB (blood-brain barrier), is nontoxic, and can reach different parts of the brain. TTK21 has beneficial implications for adult brain neurogenesis and long-term memory function.

Physicochemical Properties


Molecular Formula C17H15CLF3NO2
Molecular Weight 357.7572
Exact Mass 357.074
Elemental Analysis C, 57.07; H, 4.23; Cl, 9.91; F, 15.93; N, 3.92; O, 8.94
CAS # 709676-56-2
PubChem CID 68453302
Appearance White to off-white solid powder
Density 1.3±0.1 g/cm3
Boiling Point 369.8±42.0 °C at 760 mmHg
Flash Point 177.4±27.9 °C
Vapour Pressure 0.0±0.8 mmHg at 25°C
Index of Refraction 1.553
LogP 5.7
Hydrogen Bond Donor Count 1
Hydrogen Bond Acceptor Count 5
Rotatable Bond Count 5
Heavy Atom Count 24
Complexity 419
Defined Atom Stereocenter Count 0
SMILES

C(NC1=CC=C(Cl)C(C(F)(F)F)=C1)(=O)C1=CC=CC=C1OCCC

InChi Key AQJBXYBDNZHZRE-UHFFFAOYSA-N
InChi Code

InChI=1S/C17H15ClF3NO2/c1-2-9-24-15-6-4-3-5-12(15)16(23)22-11-7-8-14(18)13(10-11)17(19,20)21/h3-8,10H,2,9H2,1H3,(H,22,23)
Chemical Name

N-[4-chloro-3-(trifluoromethyl)phenyl]-2-propoxybenzamide
Synonyms

TTK-21; TTK21; TTK 21;
HS Tariff Code 2934.99.9001
Storage

Powder-20°C 3 years

4°C 2 years

In solvent -80°C 6 months

-20°C 1 month

Shipping Condition Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity


Enzyme Assay Auto-acetylation reactions of full-length p300 were performed in lysine acetyltransferase assay buffer at 30°C for 10 min with or without TTK21, followed by the addition of 1 μl of 4.7 Ci/mmol [3H]acetyl-CoA (NEN–PerkinElmer). The reaction mixture was further incubated for another 10 min at 30°C. The 3H-labeled acetylated p300 was visualized by fluorography followed by autoradiography.[1]
Cell Assay One equivalent of SOCl2 diluted in DCM was added dropwise to a suspension of 100 mg of CSP in DCM, followed by the addition of few drops of DMF . The reaction mixture was stirred at room temperature for 8–9 h. TTK21 dissolved in DCM was added dropwise to this solution. The reaction mixture was stirred for 8–9 h at room temperature. The solvent was then evaporated and washed with cold water. The crude product was centrifuged and the supernatant (i.e., water) was removed; this procedure was repeated 7–8 times. Washing was then performed using DCM and the supernatant was subsequently tested for absence of TTK21. The CSP-TTK21 conjugated was then dried at 60°C for 2–3 d.[1]
Highly purified HeLa core histones were incubated in HAT assay buffer at 30°C for 10 min with or without baculovirus-expressed recombinant p300 or CBP in the presence or absence of TTK21, followed by addition of 1 μl of 3.6 Ci/mmol [3H]acetyl-CoA (NEN–PerkinElmer) and incubated for 10 min in a final volume of 30 μl at 30°C.[1]
References

[1],A novel activator of CBP/p300 acetyltransferases promotes neurogenesis and extends memory duration in adult mice PMID: 23804093 PMCID: PMC6618502 DOI: 10.1523/JNEUROSCI.5772-12.2013

[2],Reinstating plasticity and memory in a tauopathy mouse model with an acetyltransferase activator. PMID: 30275019 PMCID: PMC6220301 DOI: 10.15252/emmm.201708587


Solubility Data


Solubility (In Vitro) DMSO : ~100 mg/mL (~279.52 mM)
Solubility (In Vivo) Solubility in Formulation 1: ≥ 2.5 mg/mL (6.99 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.7952 mL 13.9758 mL 27.9517 mL
5 mM 0.5590 mL 2.7952 mL 5.5903 mL
10 mM 0.2795 mL 1.3976 mL 2.7952 mL
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.