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. 2019 Jul 19;9:10503. doi: 10.1038/s41598-019-46385-4

Figure 5.

Figure 5

Characteristics of serine or threonine-directed kinases. (a) Correlation between serine/threonine preference of STKs and the maximum fold-increase in their phosphorylation motifs. (b) The box plot of a ratio of multiply phosphorylated peptides identified by in vitro kinase profiling for serine-directed, threonine-directed tyrosine kinases. (c) Relationship between Ser/Thr specificity and the amino acid at the +1 position of the common sequence “DFG” in the kinase domains.