RS-1

Catalog No.S8234

For research use only.

RS-1 is a RAD51-stimulatory compound, which increases the DNA binding activity of RAD51. It is an HDR(homology-directed repair) enhancer that enhances Cas9- and TALEN-mediated knock-in efficiency in rabbit embryos both in vitro and in vivo.

RS-1 Chemical Structure

CAS No. 312756-74-4

Selleck's RS-1 has been cited by 2 Publications

Purity & Quality Control

Choose Selective RAD51 Inhibitors

Biological Activity

Description RS-1 is a RAD51-stimulatory compound, which increases the DNA binding activity of RAD51. It is an HDR(homology-directed repair) enhancer that enhances Cas9- and TALEN-mediated knock-in efficiency in rabbit embryos both in vitro and in vivo.
Targets
RAD51 [1]
In vitro

RS-1 stimulates the binding of hRAD51 to ssDNA. Low-micromolar concentrations of this small molecule enhance DNA binding and result in longer protein–DNA complex lengths. In addition, RS-1 stabilizes the active form of hRAD51 filaments and this is reflected in an enhanced strand assimilation activity[1]. RS-1 enhances Cas9- and TALEN-mediated knock-in efficiency in rabbit embryos both in vitro and in vivo[2].

Protocol (from reference)

Cell Research:

[1]

  • Cell lines: Early-passage neonatal human dermal fibroblasts
  • Concentrations: 1-7.5 μM
  • Incubation Time: 24 h
  • Method:

    Early-passage neonatal human dermal fibroblasts were maintained in Medium 106 supplemented with low serum growth supplement. Cell-survival experiments were performed using a sulforhodamine B assay. Cells are incubated for 24 h in cisplatin with or without RS-1 and are subsequently incubated for an additional 6 days in normal media lacking both agents. Sulforhodamine B-stained cells are quantified with a Synergy plate reader.

Solubility (25°C)

In vitro

DMSO 100 mg/mL
(190.75 mM)
Water Insoluble
Ethanol Insoluble

Chemical Information

Molecular Weight 524.23
Formula

C20H16Br2N2O3S

CAS No. 312756-74-4
Storage 3 years -20°C powder
2 years -80°C in solvent
Smiles C1=CC=C(C=C1)CNS(=O)(=O)C2=C(C=CC(=C2)C(=O)NC3=CC=C(C=C3)Br)Br

In vivo Formulation Calculator (Clear solution)

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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 ddH2O, 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.
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Molarity Calculator

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Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

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