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Orthosteric Binding of ρ-Da1a, a Natural Peptide of Snake Venom Interacting Selectively with the α_1A-Adrenoceptor

Figure 2

Inhibition of ³H-prazosin (2 nM, 1 µg, open symbols) by HEAT (□), and ρ-Da1a (circle), and inhibition of ¹²⁵I-HEAT (0.2 nM, 0.2 µg, full symbols) binding by prazosin (♦) and ρ-Da1a (circle) to α_1A-AR.

n = 3.

doi: https://doi.org/10.1371/journal.pone.0068841.g002