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. 2022 Apr 11;34(7):2615–2637. doi: 10.1093/plcell/koac108

Figure 4.

Figure 4

Examples of alternative TSS usage affecting protein domain composition. A and B, Genome browser views of AFP1 (A) and SUVR5 (B), organized as in Figure 3A. C and E, Separation of PCR fragments obtained by 5′-RACE with primers specific for AFP1 (C) and PUS5 (E), organized as in Figure 3C. D, Sequence alignment of the microproteins resulting from translation of the naturally occurring short AFP1 mRNA isoform and of the AFP2 mRNA generated from the in-frame afp2-cr6 deletion demonstrated experimentally to be biologically functional (Hong et al., 2020). The NINJA-C domain is indicated in orange.