IRDye® 700 AP-1 Consensus Oligonucleotide 25 µL

67,81

5′ — CGC TTG ATG ACT CAG CCG GAA — 3′

3′ — GCG AAC TAC TGA GTC GGC CTT — 5′

Underlined nucleotides are the binding site. IRDye 700 oligonucleotides are supplied as 25 µL of 50 nM (or 50 fmol/µL) double-stranded DNA.

AP-1 is a transcription factor that regulates gene expression and controls a number of cellular processes including differentiation, proliferation, and apoptosis. For this reason, it is a common oligo used in EMSA to assess protein binding.

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You should establish conditions of the binding reaction for each protein-DNA pair. For IRDye 700 AP-1 oligonucleotide, the following binding reaction is a good starting point:

Reaction µL
10X Binding Buffer (100 mM Tris, 500 mM KCI, 10 mM DTT; pH 7.5) 2
Poly (dl•dC) 1 µg/µL in 10 mM Tris, 1 mM EDTA; pH 7.5 1
25 mM DTT/2.5% Tween® 20 2
1% NP-40 1
100 mM MgCl2 1
Water 11
IRDye 700 AP-1 1
HeLa 4 hour Serum Response nuclear extract (positive control) (5 µg/µL) 1
Total 20

After the addition of the DNA to the protein-buffer mix, reactions are incubated to allow protein binding to DNA. A typical incubation condition is 20-30 minutes at room temperature.

Since IRDye infrared dyes are somewhat sensitive to light, it is best to keep binding reactions in the dark during incubation periods (e.g., put the tubes into a drawer or simply cover the rack containing tubes with aluminum foil). After the incubation period, 10X Orange Loading Dye (P/N 927-10100) is added to the binding reaction for electrophoresis.

IRDye 700 AP-1 EMSA data
Kaal 0.002 kg
Säilitamine

-20°C

Maht

25 µL

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