RS-1 |
Catalog No.GC16265
One-Click Copy Product Info
|
RAD51 activator
Products are for research use only. Not for human use. We do not sell to patients.
Cas No.: 312756-74-4
Sample solution is provided at 25 µL, 10mM.
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RS-1 is a stimulatory compound of RAD51, a key player in the HR complex. RS-1 could increase the DNA binding activity of RAD51 and function in vivo to enhance the homologous recombination activity of hRAD51 by promoting the formation of active presynaptic filaments [1].
The hRAD51 protein could bind with single- and double-stranded DNA and exhibit DNA-dependent ATPase activity. Rad51 mediates homology recognition and initiates strand exchange [2]. Chromosome analysis revealed that Rad51‐deficient vertebrate cells accumulated chromosomal breaks in the G2/M phase of the cell cycle prior to cell death. Rad51 played an essential role in the repair of spontaneously occurring chromosome breaks in proliferating cells of higher eukaryotes [3].
RS-1 treatment promoted significant antitumor responses in a mouse mode. It can be used to kill human cancer cells, and that its toxicity is modulated by both RAD51 and RAD54 translocase expression levels [4]. RS-1 effectively improved the knock-in rates in the TALEN- and the Cas9-mediated genome-editing systems in rabbits. RS-1 showed little toxic effects on the overall animal health and reproduction. RS-1 enhanced Cas9- and TALEN-mediated knock-in efficiency in rabbit embryos both in vitro and in vivo. RS-1 treatment (15 μM) appeared to enhance the blastocyst development in embryos. Treating embryos with RS-1 at 7.5 μM resulted in 26.1% knock-in rate [5].
References:
[1]. Jayathilaka K, Sheridan S D, Bold T D, et al. A chemical compound that stimulates the human homologous recombination protein RAD51[J]. Proceedings of the National Academy of Sciences, 2008, 105(41): 15848-15853.
[2]. Baumann P, Benson F E, West S C. Human Rad51 protein promotes ATP-dependent homologous pairing and strand transfer reactions in vitro[J]. Cell, 1996, 87(4): 757-766.
[3]. Sonoda E, Sasaki M S, Buerstedde J M, et al. Rad51‐deficient vertebrate cells accumulate chromosomal breaks prior to cell death[J]. The EMBO journal, 1998, 17(2): 598-608.
[4]. Mason J M, Logan H L, Budke B, et al. The RAD51-stimulatory compound RS-1 can exploit the RAD51 overexpression that exists in cancer cells and tumors[J]. Cancer research, 2014, 74(13): 3546-3555.
[5]. Song J, Yang D, Xu J, et al. RS-1 enhances CRISPR/Cas9-and TALEN-mediated knock-in efficiency[J]. Nature communications, 2016, 7.
Kinase experiment: | Briefly, 15 μL reaction volumes include a DNA strand exchange protein (0.8 μM) that is preincubated for 5 min at 37°C with 1 μM (nucleotide concentration) 32P-labeled oligonucleotide 306.7 in a reaction buffer containing 20 mM Hepes (pH 7.5), 1 mM DTT, 2 mM nucleotide cofactor, and 1 mM MgCl2 and various concentrations of RS-1. For experimental buffer conditions that included calcium, 1 mM CaCl2 is present in addition to (in the case of hRAD51) or in the place of (in the case of RecA and scRAD51) the 1 mM MgCl2. Conditions with scRAD51 additionally contains 110 nM scRAD54. After this initial binding reaction, 10 μL of 19.75 μM (base pair concentration) supercoiled homologuecontaining target plasmid DNA (pRS306) is next added along with sufficient magnesium acetate to give a final concentration of 10 mM[1]. |
References: [1]. Jayathilaka K, et al. A chemical compound that stimulates the human homologous recombination protein RAD51. Proc Natl Acad Sci U S A. 2008 Oct 14;105(41):15848-53. | |
| Cas No. | 312756-74-4 | SDF | |
| Chemical Name | 4-bromo-N-(4-bromophenyl)-3-[[(phenylmethyl)amino]sulfonyl]-benzamide | ||
| Canonical SMILES | BrC1=CC=C(NC(C2=CC=C(Br)C(S(NCC3=CC=CC=C3)(=O)=O)=C2)=O)C=C1 | ||
| Formula | C20H16Br2N2O3S | M.Wt | 524.2 |
| Solubility | ≥ 20mg/mL in DMSO | Storage | Store at -20°C |
| General tips | Please select the appropriate solvent to prepare the stock solution according to the
solubility of the product in different solvents; once the solution is prepared, please store it in
separate packages to avoid product failure caused by repeated freezing and thawing.Storage method
and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored
at -20°C, please use it within 1 month. To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time. |
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| Shipping Condition | Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request. | ||
| Prepare stock solution | |||
|
1 mg | 5 mg | 10 mg |
| 1 mM | 1.9077 mL | 9.5383 mL | 19.0767 mL |
| 5 mM | 381.5 μL | 1.9077 mL | 3.8153 mL |
| 10 mM | 190.8 μL | 953.8 μL | 1.9077 mL |
Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)
g
μL
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Calculation results:
Working concentration: mg/ml;
Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )
Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL saline, mix and clarify.
Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.
Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such as vortex, ultrasound or hot water bath can be used to aid dissolving.
3. All of the above co-solvents are available for purchase on the GlpBio website.
Quality Control & SDS
- View current batch:
- Purity: >98.50% Appearance: A solid
- COA (Certificate of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Average Rating: 5 (Based on Reviews and 15 reference(s) in Google Scholar.)