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. Author manuscript; available in PMC: 2022 May 17.
Published in final edited form as: Nat Methods. 2019 Nov 18;17(1):73–78. doi: 10.1038/s41592-019-0628-z

Extended Figure 6. Signal levels in the DED map at the 30 ps delay.

Extended Figure 6

The DED map at 30 ps is overlaid on the entire PYP and contoured from +/− 2σ to +/− 4σ in steps of 0.5σ. Red: negative DED, green: positive DED. The 3σ level, c, is the best compromise to distinguish the signal, for example on the pCA chromophore, from spurious noise features distributed within the protein volume.