The mouse KLF1 Nan variant impairs nuclear condensation and erythroid maturation

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Erythroid phenotypes associated with KLF1 mutations.

Department of Applied Biomedical Science, Faculty of Health Sciences, University of Malta; Laboratory of Molecular Genetics, Department of Physiology & Biochemistry, University of Malta, Malta; University of Patras, Department of Pharmacy, University Campus, Patras, Greece; Thalassaemia Clinic, Section of Pathology, Mater Dei Hospital, Msida, Malta; Erasmus MC, Department of Cell Biology; Nethe...

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Krüppel-like transcription factors KLF1 and KLF2 have unique and coordinate roles in regulating embryonic erythroid precursor maturation.

The Krüppel-like transcription factors KLF1 and KLF2 are essential for embryonic erythropoiesis. They can partially compensate for each other during mouse development, and coordinately regulate numerous erythroid genes, including the β-like globins. Simultaneous ablation of KLF1 and KLF2 results in earlier embryonic lethality and severe anemia. In this study, we determine that this anemia is ca...

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Nuclear RNA Sequencing of the Mouse Erythroid Cell Transcriptome

In addition to protein coding genes a substantial proportion of mammalian genomes are transcribed. However, most transcriptome studies investigate steady-state mRNA levels, ignoring a considerable fraction of the transcribed genome. In addition, steady-state mRNA levels are influenced by both transcriptional and posttranscriptional mechanisms, and thus do not provide a clear picture of transcri...

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MtDNA mutagenesis impairs elimination of mitochondria during erythroid maturation leading to enhanced erythrocyte destruction.

Haematopoietic progenitor cells show special sensitivity to mitochondrial DNA (mtDNA) mutagenesis, which suggests that increased mtDNA mutagenesis could underlie anemias. Here we show that elevated mtDNA mutagenesis in mice with a proof-reading deficient mtDNA polymerase (PolG) leads to incomplete mitochondrial clearance, with asynchronized iron loading in erythroid precursors, and increased to...

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The DEK Oncoprotein Is a Critical Component of the EKLF/KLF1 Enhancer in Erythroid Cells.

Understanding how transcriptional regulators are themselves controlled is important in attaining a complete picture of the intracellular effects that follow signaling cascades during early development and cell-restricted differentiation. We have addressed this issue by focusing on the regulation of EKLF/KLF1, a zinc finger transcription factor that plays a necessary role in the global regulatio...

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ژورنال

عنوان ژورنال: PLOS ONE

سال: 2019

ISSN: 1932-6203

DOI: 10.1371/journal.pone.0208659