Nature Structural & Molecular Biology 14, 1 (2007).
In the version of this Editorial originally published, we incorrectly stated that the Protein Structure Initiative (PSI) represents ∼1%–3% of the total US National Institutes of Health operating budget. The PSI is funded by the US National Institute of General Medical Sciences (NIGMS) and is allocated ∼3% of the NIGMS annual operating budget. We apologize for this mistake.
The online version of the original article can be found at 10.1038/nsmb0107-1