Diversity of Proline-Rich Proteins in Plants
Author Information
Author(s): Aaron M. Newman, James B. Cooper
Primary Institution: University of California, Santa Barbara
Hypothesis
The evolutionary diversity of proline-rich tandem repeat proteins (TRPs) in plant secretomes has not been thoroughly explored.
Conclusion
The study identifies 31 distinct classes of proline-rich TRPs, revealing significant phylogenetic diversity and previously unrecognized secretome signatures in plants.
Supporting Evidence
- 31 distinct classes of proline-rich TRPs were identified.
- Most proline-rich TRP classes have unexpectedly restricted evolutionary distributions.
- Extensins evolved before plant vascularization.
Takeaway
Plants have many different types of proteins that help build their cell walls, and this study found a lot more variety in these proteins than we thought.
Methodology
A computational approach was used to analyze millions of plant secretome sequences to identify and classify proline-rich TRPs.
Limitations
The analysis may be limited by the phylogenetic sampling bias of currently available sequence data.
Digital Object Identifier (DOI)
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