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. Author manuscript; available in PMC: 2022 Aug 1.
Published in final edited form as: J Proteome Res. 2021 Oct 20;20(12):5227–5240. doi: 10.1021/acs.jproteome.1c00590

Figure 2.

Figure 2.

Pie chart of MS-based PE1 (blue), non-MS-based PE1 (orange), and PE2,3,4 predicted proteins lacking any or sufficient protein-level evidence, shown as PE2 as of neXtProt release 2021-02. The progress in these metrics since 2016 is depicted in detail in Figure 3.