ON-TARGETplus Human RAD51 (5888) siRNA - SMARTpool

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	MDA-MB-231 human breast cancer cells (ATCC, Rockville, MD, USA) were maintained in Dulbecco’s high glucose (25 mM glucose) modified Eagle’s medium (DMEM) supplemented with 10% fetal bovine serum (FBS) (Gibco, Carlsbad, CA, USA), 100 U/mL penicillin, and 100 μg/mL streptomycin. All cells were cultured at 37 °C in a humidified incubator with 5% CO2. MDA-MB-231 cells were seeded in six-well plates and transfected at 60% confluence with RAD51-targeting siRNA duplexes or a negative control siRNA (L-003530-00-0005; UAUCAUCGCCCAUGCAUCA, CUAAUCAGGUGGUAGCUCA, GCAGUGAUGUCCUGGAUAA, and CCAACGAUGUGAAGAAAUU) purchased from Dharmacon (Lafayette, CO, USA). For transfection, 5 μL of siRNA targeting human RAD51 (CR536559) and 5 μL of Lipofectamine were each diluted in 95 μL of reduced serum medium (Opti-MEM, Invitrogen, Carlsbad, CA, USA). The mixtures were incubated for 15 min before being added dropwise to the culture wells containing 800 μL of Opti-MEM to achieve a final siRNA concentration of 50 nM.

Protocol tips

MDA-MB-231 human breast cancer cells (ATCC, Rockville, MD, USA) were maintained in Dulbecco’s high glucose (25 mM glucose) modified Eagle’s medium (DMEM) supplemented with 10% fetal bovine serum (FBS) (Gibco, Carlsbad, CA, USA), 100 U/mL penicillin, and 100 μg/mL streptomycin. All cells were cultured at 37 °C in a humidified incubator with 5% CO2. MDA-MB-231 cells were seeded in six-well plates and transfected at 60% confluence with RAD51-targeting siRNA duplexes or a negative control siRNA (L-003530-00-0005; UAUCAUCGCCCAUGCAUCA, CUAAUCAGGUGGUAGCUCA, GCAGUGAUGUCCUGGAUAA, and CCAACGAUGUGAAGAAAUU) purchased from Dharmacon (Lafayette, CO, USA). For transfection, 5 μL of siRNA targeting human RAD51 (CR536559) and 5 μL of Lipofectamine were each diluted in 95 μL of reduced serum medium (Opti-MEM, Invitrogen, Carlsbad, CA, USA). The mixtures were incubated for 15 min before being added dropwise to the culture wells containing 800 μL of Opti-MEM to achieve a final siRNA concentration of 50 nM.

Publication protocol

MDA-MB-231 human breast cancer cells (ATCC, Rockville, MD, USA) were maintained in Dulbecco’s high glucose (25 mM glucose) modified Eagle’s medium (DMEM) supplemented with 10% fetal bovine serum (FBS) (Gibco, Carlsbad, CA, USA), 100 U/mL penicillin, and 100 μg/mL streptomycin. All cells were cultured at 37 °C in a humidified incubator with 5% CO2. MDA-MB-231 cells were seeded in six-well plates and transfected at 60% confluence with RAD51-targeting siRNA duplexes or a negative control siRNA (L-003530-00-0005; UAUCAUCGCCCAUGCAUCA, CUAAUCAGGUGGUAGCUCA, GCAGUGAUGUCCUGGAUAA, and CCAACGAUGUGAAGAAAUU) purchased from Dharmacon (Lafayette, CO, USA). For transfection, 5 μL of siRNA targeting human RAD51 (CR536559) and 5 μL of Lipofectamine were each diluted in 95 μL of reduced serum medium (Opti-MEM, Invitrogen, Carlsbad, CA, USA). The mixtures were incubated for 15 min before being added dropwise to the culture wells containing 800 μL of Opti-MEM to achieve a final siRNA concentration of 50 nM.

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