Results 71 to 80 of about 1,979,462 (303)

Morphometric features of topmouth gudgeon Pseudorasbora parva (Temminck & Schlegel, 1846) in the Hirfanlı Reservoir, Turkey

open access: yesActa Aquatica, 2020
The aim of this study was to some morphometric characteristics of Pseudorasbora parva from Hirfanlı Reservoir, Turkey. A morphological analysis of 29 morphometric characters were performed.
Semra Benzer
doaj   +1 more source

The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome

open access: yesFEBS Letters, EarlyView.
This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
wiley   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

open access: yesFEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Redundant Speed and Distance Measuring System at Train Head and End Based on CAN Bus

open access: yesChengshi guidao jiaotong yanjiu
Objective Data interconnection and interaction are realized through ATP (automatic train protection) system in most of the existing train speed and distance measuring technologies.
HE Haoyang, MENG Xuyao, WU Mindong
doaj   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

A Novel Scheme With Honest Relay for Secret Key Distribution

open access: yesIEEE Access
Original quantum key distribution (QKD) protocols operate on a peer-to-peer basis between two adjacent nodes, which are directly connected through a quantum channel. Such protocols are severely distance limited.
Peng-Yong Kong
doaj   +1 more source

Nasolacrimal Duct Orifice: A Cadaveric Study in Relation to Important Anatomical Landmarks

open access: yesMedicine Science, 2014
The nasolacrimal apparatus is intimately associated with the lateral nasal wall and may be approached using an endoscopic technique. This study was undertaken to describe in detail the gross anatomy of the nasolacrimal duct orifice in relation to various
Vrinda Ankolekar   +5 more
doaj   +1 more source

Long distance entanglement and high-dimensional quantum teleportation in the Fermi–Hubbard model

open access: yesScientific Reports, 2023
The long distance entanglement in finite size open Fermi–Hubbard chains, together with the end-to-end quantum teleportation are investigated. We show the peculiarity of the ground state of the Fermi–Hubbard model to support maximum long distance ...
Sanaa Abaach   +2 more
doaj   +1 more source

mRNAs and lncRNAs intrinsically form secondary structures with short end-to-end distances [PDF]

open access: yesNature Communications, 2018
Abstract The 5′ and 3′ termini of RNA play important roles in many cellular processes. Using Förster resonance energy transfer (FRET), we show that mRNAs and lncRNAs have an intrinsic propensity to fold in the absence of proteins into structures in which the 5′ end and 3′ end are ≤7 nm apart irrespective of mRNA length.
Wan-Jung C. Lai   +8 more
openaire   +3 more sources

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