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HAMNO is a novel protein interaction inhibitor of replication protein A (RPA).

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HAMNO Chemical Structure

HAMNO Chemical Structure

CAS No. : 138736-73-9

Size Price Stock Quantity
Solid + Solvent
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 55 In-stock
Solution
10 mM * 1 mL in DMSO USD 55 In-stock
Solid
5 mg USD 50 In-stock
10 mg USD 83 In-stock
25 mg USD 166 In-stock
50 mg USD 266 In-stock
100 mg USD 400 In-stock
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Customer Review

Based on 1 publication(s) in Google Scholar

HAMNO Related Antibodies

Top Publications Citing Use of Products

  • Biological Activity

  • Protocol

  • Purity & Documentation

  • References

  • Customer Review

Description

HAMNO is a novel protein interaction inhibitor of replication protein A (RPA).

IC50 & Target

RPA[1]
In Vitro

HAMNO is a novel protein interaction inhibitor of replication protein A (RPA). RPA is involved in the ATR/Chk1 pathway. HAMNO alone inhibits colony formation in both HNSCC cell lines in the low micromolar range. HAMNO combined with etoposide significantly inhibits colony formation to a greater degree than HAMNO alone. After UMSCC38 cells are exposed to HAMNO, increased pan-nuclear γ-H2AX staining occurs in a dose dependent manner. Cancer derived UMSCC38 cells, as well as another cancer cell line, UMSCC11B, have prominent γ-H2AX staining, particularly after incubation with 20 μM HAMNO. Both UMSCC38 and OKF4 cells present increased γ-H2AX staining after addition of HAMNO, with the greatest increase in signal occurring in S-phase[1].

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

HAMNO Related Antibodies
In Vivo

In mice, HAMNO slows the progression of UMSCC11B tumors. Ser33 of RPA32, an ATR substrate, is highly phosphorylated after two hours of treatment with 20 μM of etoposide, which is reduced with the addition of 2 μM HAMNO, and is nearly absent at higher concentrations, demonstrating an in vivo effect of HAMNO as an inhibitor of RPA32 phosphorylation by ATR[1].

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

263.29

Formula

C17H13NO2
CAS No.
Appearance

Solid

Color

Yellow to orange

SMILES

O=C(C=CC1=C/2C=CC=C1)C2=C/NC3=CC=CC=C3O
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 : 50 mg/mL (189.90 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 3.7981 mL 18.9905 mL 37.9809 mL
5 mM 0.7596 mL 3.7981 mL 7.5962 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)

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Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

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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% (20% SBE-β-CD in Saline)

    Solubility: 2.5 mg/mL (9.50 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 2.5 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
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
Cell Assay
[1]

Cell cycle assessment and γ-H2AX staining are monitored in UMSCC38 and OKF4 cells after 2 h incubation with HAMNO (2, 20, 50 μM) and fixed in 70% ethanol overnight. Cells are washed with PBS and incubated overnight in PBS containing 1% BSA, 10% goat serum and PS139-H2AX antibodies, washed and incubated in goat anti-mouse Alexa Fluor 647 antibody for 30 min at room temperature. Cells are incubated in 50 μg/mL propidium iodide and 100 μg/mL RNase A for 30 min, and 10,000 cells per sample are analyzed[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.
Animal Administration
[1]

Athymic nude mice are used in this study. UMSCC38 and UMSCC11B cells are implanted into 6-week-old female mice by a single subcutaneous injection of tumor cells (2 to 6×105 cells in 100 mL of sterile PBS). The growth rates of tumors are determined by daily monitoring of tumor volume with vernier calipers [tumor volume=1/2(length×width2)]. Once the tumor size reaches 50 mm3, etoposide (10 mg/kg mouse) and HAMNO (2 mg/kg) are administered intraperitoneally every day for 3 days. Tumor size is monitored daily and the volume of the tumor is compared among all experimental groups. At least three mice are used per group[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 3.7981 mL 18.9905 mL 37.9809 mL 94.9523 mL
5 mM 0.7596 mL 3.7981 mL 7.5962 mL 18.9905 mL
10 mM 0.3798 mL 1.8990 mL 3.7981 mL 9.4952 mL
15 mM 0.2532 mL 1.2660 mL 2.5321 mL 6.3302 mL
20 mM 0.1899 mL 0.9495 mL 1.8990 mL 4.7476 mL
25 mM 0.1519 mL 0.7596 mL 1.5192 mL 3.7981 mL
30 mM 0.1266 mL 0.6330 mL 1.2660 mL 3.1651 mL
40 mM 0.0950 mL 0.4748 mL 0.9495 mL 2.3738 mL
50 mM 0.0760 mL 0.3798 mL 0.7596 mL 1.8990 mL
60 mM 0.0633 mL 0.3165 mL 0.6330 mL 1.5825 mL
80 mM 0.0475 mL 0.2374 mL 0.4748 mL 1.1869 mL
100 mM 0.0380 mL 0.1899 mL 0.3798 mL 0.9495 mL
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HAMNO 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:

HAMNO138736-73-9NSC111847NSC 111847NSC-111847OthersInhibitorinhibitorinhibit

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