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Endogenous RNAi pathway evolutionarily shapes the destiny of the antisense lncRNAs transcriptomeA genome-wide comparative analysis of “cryptic” aslncRNAs decay in RNAi-capable and RNAi-deficient budding yeasts suggests an evolutionary contribution of RNAi in shaping the aslncRNAs transcriptome.
Mutagenesis of the ADAM17-phosphatidylserine–binding motif leads to embryonic lethality in miceMutation of three cationic amino acids previously identified as an extracellular phosphatidylserine-binding motif abrogates ADAM17 sheddase function and causes early embryonic death in mice.
Targeting plasma membrane phosphatidylserine content to inhibit oncogenic KRAS functionKRAS-dependent cancer cell growth is inhibited by disrupting phosphatidylserine transport to the plasma membrane by genetic knockdown of lipid exchangers ORP5 and ORP8 or by inhibition of PI4KIIIα.
Heterozygous loss of function of IQSEC2/Iqsec2 leads to increased activated Arf6 and severe neurocognitive seizure phenotype in femalesWe show that the loss of Iqsec2 function in mice recapitulates key aspects of the human phenotype, irrespective of the X-inactivation status of the gene between species. Our understanding of the traditional X-chromosome inheritance with heterozygous female sparing needs revisiting.
Plasmalogen loss caused by remodeling deficiency in mitochondria31P NMR unveils cell type–dependent losses of plasmalogen in the chain remodeling–deficient brain, liver, kidney, and lymphoblast in association with aberrant mitochondrial function and morphology.
A molecule inducing androgen receptor degradation and selectively targeting prostate cancer cellsA new molecule induces AR sumoylation and degradation resulting in selective growth inhibition in AR-dependent prostate cancer cells, but its activity is blunted by interference with proteasomes.
KAP1 is an antiparallel dimer with a functional asymmetryThis study reveals the architecture of human KAP1 by integrating molecular modeling with small-angle X-ray scattering and single-molecule experiments. KAP1 dimers feature a structural asymmetry at the C-terminal domains that has functional implications for recruitment of HP1.
GRP78 regulates CD44v membrane homeostasis and cell spreading in tamoxifen-resistant breast cancerEndoplasmic reticulum chaperone protein GRP78 interacts with CD44v and regulates F-actin integrity, cell adhesion, and cell spreading in breast cancer cells. Targeting cell surface GRP78 by antibodies can reduce CD44v expression.
MITOL deletion in the brain impairs mitochondrial structure and ER tethering leading to oxidative stressMITOL deletion in mouse brain impairs the morphology and ER tethering of mitochondria, resulting in enhanced oxidative stress. This study suggests a relationship between morphological abnormalities of mitochondria and developmental disorder.
Ncl1-mediated metabolic rewiring critical during metabolic stressAccumulation of cysteine induces translational defects and metabolic rewiring that are abrogated by leucine in a transfer RNA (tRNA) methyltransferase NCL1-dependent manner in yeast.