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. 2015 Jul 24;75(6):1255–1261. doi: 10.1136/annrheumdis-2015-207656

Figure 4.

Figure 4

Substrate specificity of wild type and mutant tPPAD on fibrinogen peptides. (A) 1 μg tPPADWT and tPPADC351A were incubated with 5 mM fibrinogen peptides at 37°C for 1 h and citrulline production was measured. (B) 1 μg tPPADWT, tPPADR152A or tPPADR154A was incubated with 5 mM fibrinogen peptides at 37°C for 1 h and citrulline production measured. In all assays, values are mean n=2±SD *p≤0.05, **p≤0.005, ***p≤0.005.