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Experimental (closed circles) and calculated (solid lines) 15N{31P} (left) and 31P{15N} (right) REDOR dephasing (ΔS/S0) as a function of dipolar evolution time for 15NH4+-exchanged phage T4. The calculations assumed a single 15N-31P distance of 3.7 (± 0.2) Å.
