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. 2021 Jun 9;21:267. doi: 10.1186/s12870-021-03027-0

Fig. 6.

Fig. 6

RCL regions and disulfide variants in Pin-II type PIs. a Preference of amino acids at P1, P2 and P1’ residues in the RCL regions (b) Distribution of RCL sequences across solanaceous and non-solanaceous plants. Frequently occurring RCL are shown separately in (b’) (c) Cysteine content (number of cysteine residues per sequence) in Pin-II type PIs and IRDs (inset) (d) Major types of disulfide bond architectures in IRDs. The images depicted in the figure are original images prepared by the authors