Interactions of Prp40 with Luc7 and Snu71 in Yeast
Author Information
Author(s): Ester Claudia, Uetz Peter
Primary Institution: Forschungszentrum Karlsruhe, Institute of Toxicology and Genetics
Hypothesis
The study investigates the essentiality and interaction properties of the FF domains of yeast Prp40.
Conclusion
Prp40, Luc7, and Snu71 appear to form a subcomplex within the yeast U1 snRNP, with the N-terminal FF domains being critical for these interactions.
Supporting Evidence
- The C-terminal two FF domains of Prp40 are dispensable.
- Deletion of additional FF domains is lethal.
- The first FF domain of Prp40 binds to U1 protein Luc7.
- FF domains 2 and 3 bind to Snu71.
Takeaway
This study shows that certain parts of a protein called Prp40 are really important for it to work with other proteins in yeast, helping them stick together.
Methodology
The study used yeast two-hybrid assays, GST pulldown experiments, and peptide array screens to investigate protein interactions.
Limitations
The study did not confirm interactions involving the FF3 domain due to its insolubility.
Digital Object Identifier (DOI)
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