RRC ID 63741
Author Herr P, Boström J, Rullman E, Rudd SG, Vesterlund M, Lehtiö J, Helleday T, Maddalo G, Altun M.
Title Cell Cycle Profiling Reveals Protein Oscillation, Phosphorylation, and Localization Dynamics.
Journal Mol Cell Proteomics
Abstract The cell cycle is a highly conserved process involving the coordinated separation of a single cell into two daughter cells. To relate transcriptional regulation across the cell cycle with oscillatory changes in protein abundance and activity, we carried out a proteome- and phospho-proteome-wide mass spectrometry profiling. We compared protein dynamics with gene transcription, revealing many transcriptionally regulated G2 mRNAs that only produce a protein shift after mitosis. Integration of CRISPR/Cas9 survivability studies further highlighted proteins essential for cell viability. Analyzing the dynamics of phosphorylation events and protein solubility dynamics over the cell cycle, we characterize predicted phospho-peptide motif distributions and predict cell cycle-dependent translocating proteins, as exemplified by the S-adenosylmethionine synthase MAT2A. Our study implicates this enzyme in translocating to the nucleus after the G1/S-checkpoint, which enables epigenetic histone methylation maintenance during DNA replication. Taken together, this data set provides a unique integrated resource with novel insights on cell cycle dynamics.
Volume 19(4)
Pages 608-623
Published 2020-4-1
DOI 10.1074/mcp.RA120.001938
PII S1535-9476(20)35020-9
PMID 32051232
PMC PMC7124475
MeSH Cell Cycle / genetics* Cell Nucleus / metabolism Gene Expression Profiling* HeLa Cells Humans Neoplasm Proteins / genetics* Neoplasm Proteins / metabolism Phosphorylation Protein Transport Proteome / metabolism RNA, Messenger / genetics RNA, Messenger / metabolism Subcellular Fractions / metabolism Transcriptome / genetics
IF 4.87
Resource
Human and Animal Cells HeLa/Fucci(RCB2812)