Genome-wide real-time in vivo transcriptional dynamics during Plasmodium falciparum blood-stage development. Author Heather Painter, Neo Chung, Aswathy Sebastian, Istvan Albert, John Storey, Manuel Llinás Publication Year 2018 Type Journal Article Abstract Genome-wide analysis of transcription in the malaria parasite Plasmodium falciparum has revealed robust variation in steady-state mRNA abundance throughout the 48-h intraerythrocytic developmental cycle (IDC), suggesting that this process is highly dynamic and tightly regulated. Here, we utilize rapid 4-thiouracil (4-TU) incorporation via pyrimidine salvage to specifically label, capture, and quantify newly-synthesized RNA transcripts at every hour throughout the IDC. This high-resolution global analysis of the transcriptome captures the timing and rate of transcription for each newly synthesized mRNA in vivo, revealing active transcription throughout all IDC stages. Using a statistical model to predict the mRNA dynamics contributing to the total mRNA abundance at each timepoint, we find varying degrees of transcription and stabilization for each mRNA corresponding to developmental transitions. Finally, our results provide new insight into co-regulation of mRNAs throughout the IDC through regulatory DNA sequence motifs, thereby expanding our understanding of P. falciparum mRNA dynamics. Keywords Gene Expression Profiling, Transcription, Genetic, RNA, Messenger, Humans, Genome, Protozoan, Malaria, Falciparum, Plasmodium falciparum, Gene Ontology, Erythrocytes, Genes, Protozoan, RNA, Protozoan Journal Nat Commun Volume 9 Issue 1 Pages 2656 Date Published 2018 Jul 09 ISSN Number 2041-1723 DOI 10.1038/s41467-018-04966-3 Alternate Journal Nat Commun PMCID PMC6037754 PMID 29985403 PubMedPubMed CentralGoogle ScholarBibTeXEndNote X3 XML