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A PxL motif promotes timely cell cycle substrate dephosphorylation by the Cdc14 phosphatase
- Source :
- Nature structural & molecular biology
- Publication Year :
- 2018
-
Abstract
- The cell division cycle consists of a series of temporally ordered events. Cell cycle kinases and phosphatases provide key regulatory input, but how the correct substrate phosphorylation and dephosphorylation timing is achieved is incompletely understood. Here we identify a PxL substrate recognition motif that instructs dephosphorylation by the budding yeast Cdc14 phosphatase during mitotic exit. The PxL motif was prevalent in Cdc14-binding peptides enriched in a phage display screen of native disordered protein regions. PxL motif removal from the Cdc14 substrate Cbk1 delays its dephosphorylation, whereas addition of the motif advances dephosphorylation of otherwise late Cdc14 substrates. Crystal structures of Cdc14 bound to three PxL motif substrate peptides provide a molecular explanation for PxL motif recognition on the phosphatase surface. Our results illustrate the sophistication of phosphatase–substrate interactions and identify them as an important determinant of ordered cell cycle progression. A PxL motif is identified in substrates of yeast phosphatase Cdc14. PxL functions as a docking motif for substrates and contributes to the timing of dephosphorylation during mitotic exit.
- Subjects :
- 0301 basic medicine
Models, Molecular
Phage display
Saccharomyces cerevisiae Proteins
Phosphatase
Amino Acid Motifs
Mitosis
Cell Cycle Proteins
Saccharomyces cerevisiae
Article
phosphatase
Dephosphorylation
03 medical and health sciences
Substrate-level phosphorylation
0302 clinical medicine
Structural Biology
Sequence Analysis, Protein
Phosphorylation
Molecular Biology
Cdc14
Kinase
Chemistry
Cell cycle
3. Good health
Cell biology
030104 developmental biology
Mitotic exit
phage display
Protein Tyrosine Phosphatases
030217 neurology & neurosurgery
Cell Division
Subjects
Details
- ISSN :
- 15459985
- Volume :
- 25
- Issue :
- 12
- Database :
- OpenAIRE
- Journal :
- Nature structuralmolecular biology
- Accession number :
- edsair.doi.dedup.....484c5116a95e8b42e1fdb12c91dfed92