Results 121 to 130 of about 155,970 (214)

Gene Expression and Molecular Characterization of a Xylanase from Chicken Cecum Metagenome

International Journal of Microbiology, 2017
A xylanase gene xynAMG1 with a 1,116-bp open reading frame, encoding an endo-β-1,4-xylanase, was cloned from a chicken cecum metagenome. The translated XynAMG1 protein consisted of 372 amino acids including a putative signal peptide of 23 amino acids ...
Hind AL-Darkazali, Vithaya Meevootisom, Duangnate Isarangkul, Suthep Wiyakrutta   +3 more
doaj   +1 more source

Polyelectrolyte Polypeptide Scaling Laws Via Mechanical and Dielectric Relaxation Measurements [PDF]

arXiv, 2016
Experimental results from mechanical viscoelastic as well as dielectric relaxation times were compared to theoretical expectations utilizing polymer scaling theory. Viscoelastic relaxation of a hydrogel at 33% relative humidity fabricated from co-poly-L-(glutamic acid$_{4}$, tyrosine$_{1}$) [PLEY(4:1)] crosslinked with poly-L-lysine scaled with ...
arxiv  

Deciphering Auditory Hyperexcitability in Otogl Mutant Mice Unravels an Auditory Neuropathy Mechanism

Advanced Science, EarlyView.
By investigating auditory hyperexcitability in a mouse model for hereditary deafness, this study identified a subpopulation of afferent neurons of the auditory nerve marked by Otogl expression. Despite their apparently normal hearing, Otogl+/− mice display poor activation of afferent neurons processing loud sounds and an elevation of the middle the ear
Mathilde Gagliardini, Sabrina Mechaussier, Carolina Campos Pina, Monica Morais, Olivier Postal, Philippe Jean, Typhaine Dupont, Amrit Singh‐Estivalet, Shéhanie Udugampolage, Cyril Scandola, Elisabeth Verpy, Baptiste Libé‐Philippot, Talya C. Inbar, Joanna Schwenkgrub, Carla Maria Barbosa Spinola, Raphaël Etournay, Aziz El‐Amraoui, Brice Bathellier, Adeline Mallet, Sedigheh Delmaghani, Fabrice Giraudet, Christine Petit, Boris Gourévitch, Paul Avan, Nicolas Michalski   +24 more
wiley   +1 more source

Rapid and Scalable Halosulfonylation of Strain‐Release Reagents**

Angewandte Chemie, Volume 135, Issue 3, January 16, 2023., 2023
A one‐pot halosulfonylation of strained hydrocarbons is described that proceeds under practical, scalable and mild conditions. Sulfonyl halides featuring aryl, heteroaryl and alkyl substituents are generated in situ from sulfinate salts and convenient halogen atom sources. This chemistry enables the synthesis of an array of halogen/sulfonyl‐substituted
Helena D. Pickford, Vasyl Ripenko, Ryan E. McNamee, Serhii Holovchuk, Amber L. Thompson, Russell C. Smith, Pavel K. Mykhailiuk, Edward A. Anderson   +7 more
wiley   +2 more sources

The Biosynthetic Order of Amino Acid Addition to the Genetic Code [PDF]

arXiv, 2002
The previously formulated model for the evolution of the genetic code was shown to clarify why base triplets of some precursor amino acids differ by a single base from product amino acid codons, while others show less homology. First, the model indicated that the direction of code evolution changed on expansion from the N-fixers code (stage 2).
arxiv  

RFWD3 Reprograms Nucleotide Metabolism Through PHGDH to Induce Chemoresistance In Osteosarcoma

Advanced Science, EarlyView.
RFWD3 is identified as a key regulator of cisplatin (DDP) sensitivity in osteosarcoma using a genome‐wide CRISPR screen. RFWD3 promotes PHGDH ubiquitination, enhancing NAD+‐mediated nucleotide biosynthesis. Knocking out RFWD3 sensitized osteosarcoma cells to DDP.
Wenchao Zhang, Chi Yin, Lin Qi, Zhongyue Liu, Ruiling Xu, Chao Tu, Zhihong Li   +6 more
wiley   +1 more source

Cavity Waters Govern Insulin Association and Release: Inferences from Experimental Data and Molecular Dynamics Simulations [PDF]

arXiv, 2017
While a monomer of the ubiquitous hormone insulin is the biologically active form in the human body, its hexameric assembly acts as an efficient storage unit. However, the role of water molecules in the structure, stability and dynamics of the insulin hexamer is poorly understood. Here we combine experimental data with molecular dynamics simulations to
arxiv  

Structural Diversity of Mitochondria in the Neuromuscular System across Development Revealed by 3D Electron Microscopy

Advanced Science, EarlyView.
Mitochondria across the entire neuromuscular system have been comprehensively reconstructed at different developmental stages using 3D electron microscopy. Fundamental structural principles related to synaptic function are preserved across development, and these morphologies are adapted to ensure effective neural circuit function.
J. Alexander Bae, Myung‐kyu Choi, Soungyub Ahn, Gwanho Ko, Daniel T. Choe, Hyunsoo Yim, Ken C. Nguyen, Jinseop S. Kim, David H. Hall, Junho Lee   +9 more
wiley   +1 more source

Simultaneous Detection of Neural Activity and Temperature in Photothermal Neural Stimulation

Advanced Science, EarlyView.
Photothermal neuromodulation technology faces limitations in understanding its mechanisms and effects on cellular behavior due to the difficulty of directly measuring temperature changes at the cell interface during optical stimulation of neurons. To overcome this challenge, ultrasensitive, transparent temperature sensors integrated with low‐noise ...
Duhee Kim, Jee Woong Lee, Seoyoung Kang, Woongki Hong, Jungha Lee, Hyuk‐Jun Kwon, Jae Eun Jang, Luke P. Lee, Hongki Kang   +8 more
wiley   +1 more source

Berberine is a Novel Mitochondrial Calcium Uniporter Inhibitor that Disrupts MCU‐EMRE Assembly

Advanced Science, EarlyView.
Berberine, a safe and FDA‐approved drug, is identified as a novel mitochondrial calcium uniporter (MCU) inhibitor. By disrupting MCU‐EMRE interaction, Berberine prevents mitochondrial calcium overload and protects against ischemia/reperfusion injury, offering a promising therapeutic strategy for diseases linked to mitochondrial calcium dysregulation ...
Haixin Zhao, Siqi Chen, Nian Cao, Wenjun Wu, Guangqin Liu, Jun Gao, Jiayi Chen, Ting Li, Dingyi Lu, Lingmin Zeng, Haizhen Zhu, Weina Zhang, Qing Xia, Teng Li, Tao Zhou, Xue‐Min Zhang, Ai‐Ling Li, Xin Pan   +17 more
wiley   +1 more source