Helianthus annuus strain:domestic Transcriptome or Gene expression. Helianthus annuus strain:domestic

PawS1 (Preproalbumin with SFTI 1) shows an unusual biosynthesis where a small trypsin-inhibitory cyclide peptide, SFTI 1 (Sunflower Trypsin Inhibitor 1) is buried within a napin-type 2S albumin protein in sunflower seeds. Two PawS genes, PawS1 and PawS2 were identified in sunflower. De novo transcriptomics of seed RNA enabled us to identify a PawS-Like gene (HaPawL1) too in sunflower. The proteins encoded by PawS-Like genes share many features of PawS1, but PawL1 is matured only into a napin and no stable peptide is formed.