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. 2021 Nov 12;50(D1):D471–D479. doi: 10.1093/nar/gkab1017

Table 1.

Comparison of data statistics of relevant information between dbPTM 2022 and the previous version.

Description dbPTM 2019 dbPTM 2022
Experimental validated PTM sites 908 917 2 235 664
Species of PTM tdsubstrates 1550 7070
PTM types 34 76
Integrated online databases and tools 148 258
Integrated PTM resources 30 41
Disease-associated PTM sites 350 2846
PTM pairs (PTM crosstalk) 169 370
Functions of PTM sites N/A 12 079
Upstream regulatory relationships N/A 44 753