Results 51 to 60 of about 341,348 (303)

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

FEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe, Tanmay Kumar Mohanty, Rashna Bhandari, Dorothea Fiedler   +3 more
wiley   +1 more source

Cell-intrinsic and -extrinsic regulation of developmental hematopoiesis

, 2022
Hematopoietic stem cells (HSCs) are at the foundation of the hematopoietic system. Endowed with multi-lineage differentiation and long-term self-renewal properties, HSCs have the capacity to replenish the entire blood system, thereby meeting the constant
Sub Developmental Biology, Developmental Biology, Klaus, Anna Katharina   +2 more
core   +1 more source

On the origin of mitosis-derived human embryo aneuploidy

Nature Communications
Chromosome segregation errors are common in the early stages of human embryonic development. By examining the first mitotic divisions of human embryos using live cell imaging, three recent studies identify spindle architecture and positioning features ...
Jiyeon Leem, Madison Gowett, Sarah Bolarinwa, Binyam Mogessie   +3 more
doaj   +1 more source

The influence of biological sex and sex hormones on bile acid synthesis and cholesterol homeostasis

Biology of Sex Differences, 2019
Obesity and elevated serum lipids are associated with a threefold increase in the risk of developing atherosclerosis, a condition that underlies stroke, myocardial infarction, and sudden cardiac death.
Taylor Phelps, Erin Snyder, Erin Rodriguez, Hailey Child, Pamela Harvey   +4 more
doaj   +1 more source

Organ‐specific redox imbalances in spinal muscular atrophy mice are partially rescued by SMN antisense oligonucleotides

FEBS Letters, EarlyView.
We identified a systemic, progressive loss of protein S‐glutathionylation—detected by nonreducing western blotting—alongside dysregulation of glutathione‐cycle enzymes in both neuronal and peripheral tissues of Taiwanese SMA mice. These alterations were partially rescued by SMN antisense oligonucleotide therapy, revealing persistent redox imbalance as ...
Sofia Vrettou, Brunhilde Wirth
wiley   +1 more source

Molecular insights into the regulation of GNPTαβ by LYSET

Nature Communications
In vertebrates, newly synthesized lysosomal enzymes traffic to lysosomes through the mannose-6-phosphate (M6P) pathway. The Golgi membrane protein LYSET was recently discovered to regulate lysosome biogenesis by controlling the level of GlcNAc-1 ...
Xi Yang, Balraj Doray, Danielle Henn, Varsha Venkatarangan, Benjamin C. Jennings, Zhongzheng Dong, Jiaxuan Liang, Weichao Zhang, Bokai Zhang, Linchen Yu, Liang Chen, Stuart Kornfeld, Ming Li   +12 more
doaj   +1 more source

Multiple ParA/MinD ATPases coordinate the positioning of disparate cargos in a bacterial cell

Nature Communications, 2023
In eukaryotes, linear motor proteins govern intracellular transport and organization. In bacteria, where linear motors involved in spatial regulation are absent, the ParA/MinD family of ATPases organize an array of genetic- and protein-based cellular ...
Lisa T. Pulianmackal, Jose Miguel I. Limcaoco, Keerthikka Ravi, Sinyu Yang, Jeffrey Zhang, Mimi K. Tran, Maria Ghalmi, Matthew J. O’Meara, Anthony G. Vecchiarelli   +8 more
doaj   +1 more source

Transferrin receptor 1‐mediated iron uptake supports thermogenic activation in human cervical‐derived adipocytes

FEBS Letters, EarlyView.
In this study, we found that human cervical‐derived adipocytes maintain intracellular iron level by regulating the expression of iron transport‐related proteins during adrenergic stimulation. Melanotransferrin is predicted to interact with transferrin receptor 1 based on in silico analysis.
Rahaf Alrifai, Mizuki Seo, Gyath Karadsheh, Fachrur Rizal Mahendra, Máté Á Demény, Ferenc Győry, János András Mótyán, László Fésüs, Endre Kristóf, Rini Arianti   +9 more
wiley   +1 more source

Tau acetylation at K331 has limited impact on tau pathology in vivo

FEBS Letters, EarlyView.
We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto, Yukio Matsuba, Mika Takahashi, Takaomi C. Saido   +3 more
wiley   +1 more source

The E3 ligase Riplet promotes RIG-I signaling independent of RIG-I oligomerization

Nature Communications, 2023
RIG-I is an essential innate immune receptor that responds to infection by RNA viruses. The RIG-I signaling cascade is mediated by a series of post-translational modifications, the most important of which is ubiquitination of the RIG-I Caspase ...
Wenshuai Wang, Benjamin Götte, Rong Guo, Anna Marie Pyle   +3 more
doaj   +1 more source