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0739 v1.2 Duolink Brochure - final - Eurogentec

0739 v1.2 Duolink Brochure - final - Eurogentec

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9. ACCURATELY QUANTIFY EXPRESSION LEVELS<br />

Discrete fluorescent signals reveal expression of EGF receptor in A431 cells.<br />

Primary antibody against EGFR<br />

HIGH SIGNAL TO NOISE<br />

1000<br />

100<br />

10<br />

1<br />

Immunofluorescence<br />

<strong>Duolink</strong><br />

Negative control,<br />

no primary antibody added<br />

Fig 12. PLA signal-to-noise<br />

ratio 100 times higher than<br />

immunofluorescence (data derived<br />

from comparison with controls - no<br />

primary antibody added).<br />

Fig 11. Red: EGF receptors.<br />

Blue: DAPI stained nuclei.<br />

“… a state of the art quantitative protein<br />

technology that has furthered our research on<br />

human brain tumors above and beyond classical<br />

protein techniques.“<br />

Markus Bredel, MD, PhD,<br />

Northwestern University, Chicago<br />

<strong>Duolink</strong> – Protein interactions<br />

9

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