Results 61 to 70 of about 887,804 (330)

Free SepF interferes with recruitment of late cell division proteins

Scientific Reports, 2017
The conserved cell division protein SepF aligns polymers of FtsZ, the key cell division protein in bacteria, during synthesis of the (Fts)Z-ring at midcell, the first stage in cytokinesis.
Yongqiang Gao, Michaela Wenzel, Martijs J. Jonker, Leendert W. Hamoen   +3 more
doaj   +1 more source

FtsZ-Ring Regulation and Cell Division Are Mediated by Essential EzrA and Accessory Proteins ZapA and ZapJ in Streptococcus pneumoniae

Frontiers in Microbiology, 2021
The bacterial FtsZ-ring initiates division by recruiting a large repertoire of proteins (the divisome; Z-ring) needed for septation and separation of cells. Although FtsZ is essential and its role as the main orchestrator of cell division is conserved in
Amilcar J. Perez, Jesus Bazan Villicana, Ho-Ching T. Tsui, Madeline L. Danforth, Mattia Benedet, Orietta Massidda, Malcolm E. Winkler   +6 more
doaj   +1 more source

DELP Treatment on Vision and Retinal Microcirculation in Patients With Acute Ischemic Stroke: Report of Five Cases and Literature Review

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background The delipid extracorporeal lipoprotein filter from plasma (DELP) treatment can effectively reduce blood lipid, increase blood flow, and improve neurological deficits in patients with acute ischemic stroke (AIS). However, its effect on vision and retinal microcirculation in stroke patients has never been reported.
Ning Li, Ronghua Hong, Hua You, Feiping Xu, Qingjun Zhang, Yiwen Lin, Yuting Su, Danmei Lan, Lingjing Jin, Junhui She   +9 more
wiley   +1 more source

Noc Corrals Migration of FtsZ Protofilaments during Cytokinesis in Bacillus subtilis

mBio, 2021
In bacteria, a condensed structure of FtsZ (Z-ring) recruits cell division machinery at the midcell, and Z-ring formation is discouraged over the chromosome by a poorly understood phenomenon called nucleoid occlusion.
Yuanchen Yu, Jinsheng Zhou, Frederico J. Gueiros-Filho, Daniel B. Kearns, Stephen C. Jacobson   +4 more
doaj   +1 more source

Trapping of a spiral-like intermediate of the bacterial cytokinetic protein FtsZ

, 2006
The earliest stage in bacterial cell division is the formation of a ring, composed of the tubulin-like protein FtsZ, at the division site. Tight spatial and temporal regulation of Z-ring formation is required to ensure that division occurs precisely at ...
Beech, Peter, Harry, Elizabeth J., Michie, Katherine A., Monahan, Leigh G.   +3 more
core   +2 more sources

Reciprocal control of viral infection and phosphoinositide dynamics

FEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

A note on maps preserving products of matrices

AIMS Mathematics
Let $ D $ be a division ring such that either char$ (D)\neq 2, 3 $ or $ D $ is not a field and char$ (D)\neq 2 $. Let $ R = M_n(D) $ be the matrix ring over $ D $, where $ n > 1 $. Let $ m, k $ be fixed invertible elements in $ R $.
Lan Lu, Yu Wang
doaj   +1 more source

Quantitative analysis of cytokinesis in situ during C. elegans postembryonic development. [PDF]

PLoS ONE, 2014
The physical separation of a cell into two daughter cells during cytokinesis requires cell-intrinsic shape changes driven by a contractile ring. However, in vivo, cells interact with their environment, which includes other cells.
Karine G Bourdages, Benjamin Lacroix, Jonas F Dorn, Carlos P Descovich, Amy S Maddox   +4 more
doaj   +1 more source

Spatiotemporal and quantitative analyses of phosphoinositides – fluorescent probe—and mass spectrometry‐based approaches

FEBS Letters, EarlyView.
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho, Shin Morioka, Junko Sasaki, Takehiko Sasaki   +3 more
wiley   +1 more source

A Color Image Encryption Model Based on a System of Quaternion Matrix Equations

Mathematics
In the era of big data and multimedia communication, securing color images against unauthorized access and attacks is a pressing challenge. While quaternion-based models provide a unified representation for color images, most existing encryption schemes ...
Chen-Yang Qi, Chang Liu, Zhuo-Heng He, Shao-Wen Yu   +3 more
doaj   +1 more source