Results 91 to 100 of about 82,021 (288)

Anosmin-1 modulates fibroblast growth factor receptor 1 signaling in human gonadotropin-releasing hormone olfactory neuroblasts through a heparan sulfate-dependent mechanism [PDF]

, 2004
Defects of either anosmin-1 or fibroblast growth factor receptor 1 (FGFR1) are known to underlie hereditary Kallmann's syndrome (KS), a human disorder of olfactory and gonadotropin-releasing hormone (GnRH) neuronal ontogeny.
Bouloux, PM, Gonzalez-Martinez, D, Guimond, S, Hu, YL, Kim, SH, Schofield, J, Turnbull, J, Vannelli, GB, Winyard, P   +8 more
core   +1 more source

Dual Cytoplasmic and Chloroplastic Mechanisms Fine‐Tune Chloroplast Division through ARC3 Protein Stability

Advanced Science, EarlyView.
ARC3 levels are controlled by cytosolic and chloroplast proteolytic systems. PUB52 mediates ARC3 precursor ubiquitination and degradation in the cytosol, while CLPC1 promotes ARC3 degradation in chloroplasts, where ARC2 protects ARC3 from excessive breakdown. Disrupting these components causes chloroplast division defects, placing them upstream of ARC3.
Yang Yuan, Denghao Xiang, Ruiying Li, Zhichuang Yue, Zhipeng Wang, Honghong Hu   +5 more
wiley   +1 more source

Epac, Rap and Rab3 act in concert to mobilize calcium from sperm's acrosome during exocytosis [PDF]

, 2014
BACKGROUND: Exocytosis of sperm's single secretory granule or acrosome (acrosome reaction, AR) is a highly regulated event essential for fertilization. The AR begins with an influx of calcium from the extracellular milieu and continues with the synthesis
Bustos, Matias Alberto, Lucchesi, Ornella, Ruete, María Celeste, Tomes, Claudia Nora   +3 more
core   +1 more source

The importance of the GTP‐binding protein tissue transglutaminase in the regulation of cell cycle progression

FEBS Letters, 1995
Tissue transglutaminase (tTgase) is a GTP‐binding Ca2+‐dependent enzyme which catalyses the post‐translational modification of proteins via ϵ(γ‐glutamyl) lysine bridges. Recent evidence suggests that the GTP‐binding activity of tTgase may be important in intracellular signalling thus explaining some of the diverse suggested roles for the enzyme. In the
MIAN S, EL ALAOUI S, LAWRY J, GENTILE, Vittorio, DAVIES PJ, GRIFFIN M.   +5 more
openaire   +3 more sources

Engineering a Virus‐Derived X Family DNA Polymerase FvPolX for de novo DNA Synthesis

Advanced Science, EarlyView.
In this study, a Faustovirus‐derived polymerase (FvPolX) is engineered based on structural and sequence analysis of PolX enzymes. The optimal mutants demonstrate substantially enhanced catalytic activity toward dNTPs and 3′‐ONH2‐dNTPs compared to the wild‐type enzyme.
Chengjie Zhang, Lei Du, Shengying Li
wiley   +1 more source

The role of motor proteins in endosomal sorting [PDF]

, 2011
Microtubule motor proteins play key roles in the spatial organization of intracellular organelles as well as the transfer of material between them.
Hunt, Sylvie, Stephens, DJ
core   +2 more sources

Paternal Caffeine Exposure Programs Offspring Stress Vulnerability via Sperm Dlk1‐Dio3 Imprinting‐Directed Remodeling of a Novel Neural Circuit

Advanced Science, EarlyView.
The study elucidates that paternal preconception stress can drive offspring hyperresponsivity of the stress system via hypomethylation of a specific DNA region in sperm. This key link is confirmed in a cohort of prospective fathers: the epigenetic alteration is associated with elevated stress hormone levels.
Mengxi Lu, Gaole Dai, Sen Zhu, Shuai Zhang, Tingting Wang, Yuan Meng, Fang Yang, Xiaoyi Han, Hui Wang, Hao Kou, Dan Xu   +10 more
wiley   +1 more source

Innate immune system activation in zebrafish and cellular models of Diamond Blackfan Anemia. [PDF]

, 2018
Deficiency of ribosomal proteins (RPs) leads to Diamond Blackfan Anemia (DBA) associated with anemia, congenital defects, and cancer. While p53 activation is responsible for many features of DBA, the role of immune system is less defined.
Bibikova, Elena, Danilova, Nadia, Lin, Shuo, Sakamoto, Kathleen M, Wilkes, Mark, Youn, Min-Young   +5 more
core   +2 more sources

Allosteric DNAzyme‐Enabled Sensitive and Multiplex Detection of Biomarkers for Rapid Diagnosis of Urinary Tract Infections

Advanced Science, EarlyView.
A catalytic allosteric DNAzyme assay (SMART) is developed by engineering DNAzyme into a unimolecular biosensor, enabling highly sensitive and multiplex detection of small molecules and nucleic acids. SMART enables extraction‐free, one‐pot, one‐step, isothermal, and cost‐effective detection of biological markers, achieving >95% accuracy for rapid ...
Yanzhe Shen, Chenzhi Shi, Xiaowei Ma, Pengfei Hou, Haomin Zhang, Juanxiu Qin, Li Pan, Guilin Li, Lifei Gao, Qian Ma, Donglei Yang, Min Li, Pengfei Wang   +12 more
wiley   +1 more source

ARHGAP11A, a member of Rho GTPase activating protein family, as a prognostic biomarker linked to DNA damage response across pan-cancer

BMC Cancer
Background The Rho GTPase-activating protein (RhoGAP) family represents a large and diverse group of proteins that act as key regulators of Rho GTPases, small GTP-binding proteins involved in cellular signaling. Tight regulation of Rho GTPase activity is
Ke Tan, Yun Wu, Jiaqi Zhang, Yuqiong Ding, Chen Cheng, Zhenyu Yan, Xuetong Wang, Liyuan Zhang   +7 more
doaj   +1 more source