Institute of Molecular Biology

Quantitative proteomics reveals coordinated changes in the proteome during replicative senescence

Abstract Cellular senescence is a state of irreversible cell cycle arrest triggered by telomere erosion, persistent DNA damage or chronic stress. The accumulation of senescent cells disrupts tissue function and contributes to aging and disease. Here, we employ mass spectrometry-b...

An evolutionarily conserved N-terminal domain of RRF-3 governs GTSF-1 binding in nematodes

Abstract GTSF1 is an essential activating cofactor for PIWI proteins in many metazoans. In the nematode Caenorhabditis elegans , however, GTSF-1 does not bind PIWI, but is associated with the RNA-dependent RNA polymerase RRF-3, supporting endo-siRNA (26G-RNA) biogenesis. Here, we...

DVE-1 is a telomere-binding protein and links the NuRD complex to telomere regulation in C. elegans

Telomeres are repetitive DNA sequences at the ends of linear chromosomes bound by specialized proteins. In our previous quantitative proteomics screen for telomere-binding proteins of Caenorhabditis elegans , we identified DVE-1, a homolog of mammalian SATB proteins and a transcr...

The transcription factor NF-Y promotes myeloid cell survival and protects from inflammatory vascular disease

Abstract Background Myeloid cells orchestrate vascular inflammation through transcriptional programs that regulate their maturation, effector function, and survival. While lineage-determining transcription factors establish myeloid identity, understanding of the transcriptional r...

Timing the origin: chromatin, transcription, and the spatiotemporal control of eukaryotic DNA replication

Abstract The eukaryotic genome is replicated according to a tightly regulated temporal program that ensures each DNA segment is copied once per cell cycle. This program reflects the coordinated action of replication origin licensing, chromatin state, transcriptional activity, and...