Table of Contents
Research Articles
- Discovery of a cofactor-independent inhibitor of Mycobacterium tuberculosis InhA
AN12855 is a novel cofactor-independent inhibitor of Mycobacterium tuberculosis InhA. AN12855 has potent activity against M. tuberculosis, good oral bioavailability, and comparable efficacy to isoniazid in infection models.
- ERα activity depends on interaction and target site corecruitment with phosphorylated CREB1
CREB1 interacts with, stimulates, and is necessary for estrogen receptor α activation by estrogen or cAMP signaling, and this cooperation may underlie their anti-apoptotic activities in breast cancer cells.
- Transcriptional repression by FACT is linked to regulation of chromatin accessibility at the promoter of ES cells
Depletion of FACT in murine embryonic stem cells show mild changes on the nucleosomal landscape but widespread changes in the transcriptome, faster proliferation, and neuronal differentiation rates.
- Neuronal Aβ42 is enriched in small vesicles at the presynaptic side of synapses
Super-resolution microscopy reveals that Aβ42 is mainly present at the presynaptic side of the synapse.
- Ribosome recycling is coordinated by processive events in two asymmetric ATP sites of ABCE1
The stepwise ribosome disassembly in the translation cycle of eukaryotes and archaea is scheduled by discrete molecular events within the asymmetric ribosome recycling factor ABCE1.
- Co-existing feedback loops generate tissue-specific circadian rhythms
The analysis of tissue-specific data-based models of the gene regulatory network of the mammalian circadian clock reveals organ-specific synergies of feedback loops.
- DHX15 regulates CMTR1-dependent gene expression and cell proliferation
DHX15 helicase regulates CMTR1-dependent first transcribed nucleotide ribose O-2 methylation.
- Chronic platelet-derived growth factor receptor signaling exerts control over initiation of protein translation in glioma
Using phospho-proteomics in a new model of malignant glioma, we reveal that clinically relevant, chronic PDGFRα signaling differs considerably from acute receptor stimulation and unveils previously unrecognized control over key elements of the translation initiation machinery.
- Recruitment of ubiquitin-activating enzyme UBA1 to DNA by poly(ADP-ribose) promotes ATR signalling
Human but not yeast UBA1 binds poly(ADP-ribose) polymers via a solvent-exposed and positively charged patch. Poly(ADP-ribose) polymerase 1–dependent recruitment of UBA1 to DNA ensures ataxia-telangiectasia and RAD3-related activation.
- Somatic role of SYCE2: an insulator that dissociates HP1α from H3K9me3 and potentiates DNA repair
This study reveals that the synaptonemal complex protein SYCE2 potentiates ataxia telangiectasia mutated–mediated DNA double-strand break repair by dissociating HP1α from trimethylated histone H3 lysine 9 in somatic cells.
- Molecular analysis of human Ero1 reveals novel regulatory mechanisms for oxidative protein folding
This study reveals novel regulatory mechanisms for human Ero1α and Ero1β, including cooperativity for oxygen binding and complex formation with PDI via a novel mixed disulfide linkage.
- DNA polymerase ζ deficiency causes impaired wound healing and stress-induced skin pigmentation
Mice harboring DNA polymerase ζ–defective keratinocytes are shown to have a defect in wound healing and a striking p53-dependent migration of melanocytes to the skin following UV radiation or wounding.
Methods
- Silica-based solid-phase extraction of cross-linked nucleic acid–bound proteins
The 2C method allows the rapid and straightforward isolation of nucleic acid–protein complexes, greatly simplifying downstream applications for the study of DNA– and RNA–protein interactions.