The abstract is read at the publisher; the summary is JClub's.
Spn42Da and Spn42Db emerge as the top Drosophila serpin candidates with the highest integrated cross-species support for SERPINE1-like characteristics, despite no single definitive ortholog.
- Why it matters: Human SERPINE1/PAI-1 has incompletely defined evolutionary and functional relationships to Drosophila serpins, limiting identification of functional analogs across divergent species.
- What they did: They compared Drosophila serpins (Spn42Da, Spn42Db, Spn42Dc, Spn42Dd, Spn28B, Spn28F) using orthology prediction, sequence/structure and reactive center loop analyses, phylogenetics, and tissue, single-cell, and aging expression datasets.
- The result: Spn42Dd showed SERPINE1-like sequence/structure and broad expression but weaker overall expression correlations, while Spn42Da and Spn42Db were stable top-ranked across orthology, alignment, and expression, implying SERPINE1-like similarity is distributed.
The findingWhy it mattersWhat they didThe result
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