1. Cell Cycle/DNA Damage PI3K/Akt/mTOR
  2. DNA-PK
  3. LTURM34

LTURM34 is a specific DNA-PK inhibitor (IC50=34 nM). LTURM34 exhibits 170-fold selectivity for DNA-PK over PI3K. LTURM34 shows potent antiproliferative activity in a wide range of tumor cell lines.

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

LTURM34 Chemical Structure

LTURM34 Chemical Structure

CAS No. : 1879887-96-3

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
USD 88 In-stock
Solution
10 mM * 1 mL in DMSO USD 88 In-stock
Solid
5 mg USD 80 In-stock
10 mg USD 140 In-stock
25 mg USD 300 In-stock
50 mg USD 520 In-stock
100 mg USD 920 In-stock
200 mg   Get quote  
500 mg   Get quote  

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This product is a controlled substance and not for sale in your territory.

Customer Review

Based on 4 publication(s) in Google Scholar

Top Publications Citing Use of Products
  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

LTURM34 is a specific DNA-PK inhibitor (IC50=34 nM). LTURM34 exhibits 170-fold selectivity for DNA-PK over PI3K. LTURM34 shows potent antiproliferative activity in a wide range of tumor cell lines[1].

IC50 & Target[1]

DNA-PK

34 nM (IC50)

PI3Kβ

5.8 μM (IC50)

PI4Kδ

8.5 μM (IC50)

In Vitro

LTURM34 shows potent inhibition of DNA-PK with excellent selectivity over the Class I PI3K isoforms. The IC50s are 5.8 and 8.5 μM for PI3K β and δ, respectively. LTURM34 is more consistently active against the selected cell lines (11 of 16), but at best shows 54% inhibition against the HOP-92 non-small cell lung cancer line[1].

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

Molecular Weight

414.48

Formula

C24H18N2O3S

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

O=C1C2=CC=CC(C3=CC=CC4=C3SC5=C4C=CC=C5)=C2OC(N6CCOCC6)=N1

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 2 years
-20°C 1 year
Solvent & Solubility
In Vitro: 

DMSO : 65 mg/mL (156.82 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.4127 mL 12.0633 mL 24.1266 mL
5 mM 0.4825 mL 2.4127 mL 4.8253 mL
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

  • Molarity Calculator

  • Dilution Calculator

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

Mass
=
Concentration
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Volume
×
Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

In Vivo:

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

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: ≥ 3.25 mg/mL (7.84 mM); Clear solution

    This protocol yields a clear solution of ≥ 3.25 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 (32.5 mg/mL) to 900 μL Corn oil, and mix evenly.

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.
Please enter your animal formula composition:
%
DMSO +
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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).
Calculation results:
Working solution concentration: 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).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 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
References
Kinase Assay
[1]

LTURM34 is dissolved at 10 mM in DMSO and stored at -20°C until use. PI3K enzyme activity is determined in 50 μL of 20 mM HEPES pH 7.5, 5 mM MgCl2 with 180 μM PI and 10 μM ATP. After a 60 min incubation at room temperature the reaction is stopped by the addition of 50 μl of Kinase-Glo followed by a further 15 min incubation. Luminescence is then read using a luostar plate reader. LTURM34 is diluted in 20% (v/v) DMSO at the ndicated concentrations in order to generate a concentration versus inhibition of enzyme activity curve which is then analysed using GraphPad Prism version 5.00 for Windows, in order to calculate the IC50[1].

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

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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.4127 mL 12.0633 mL 24.1266 mL 60.3165 mL
5 mM 0.4825 mL 2.4127 mL 4.8253 mL 12.0633 mL
10 mM 0.2413 mL 1.2063 mL 2.4127 mL 6.0317 mL
15 mM 0.1608 mL 0.8042 mL 1.6084 mL 4.0211 mL
20 mM 0.1206 mL 0.6032 mL 1.2063 mL 3.0158 mL
25 mM 0.0965 mL 0.4825 mL 0.9651 mL 2.4127 mL
30 mM 0.0804 mL 0.4021 mL 0.8042 mL 2.0106 mL
40 mM 0.0603 mL 0.3016 mL 0.6032 mL 1.5079 mL
50 mM 0.0483 mL 0.2413 mL 0.4825 mL 1.2063 mL
60 mM 0.0402 mL 0.2011 mL 0.4021 mL 1.0053 mL
80 mM 0.0302 mL 0.1508 mL 0.3016 mL 0.7540 mL
100 mM 0.0241 mL 0.1206 mL 0.2413 mL 0.6032 mL
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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.

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LTURM34
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