Results 41 to 50 of about 5,583 (160)

Expression of microbial rhodopsins in Escherichia coli and their extraction and purification using styrene-maleic acid copolymers

STAR Protocols, 2022
Summary: Microbial rhodopsins are photoreceptive membrane proteins showing various light-dependent biological activities. Styrene-maleic acid (SMA) copolymers spontaneously form nanoscale lipid particles containing membrane proteins and associated lipids
Keiichi Kojima, Yuki Sudo
doaj   +1 more source

MpcT is the transducer for membrane potential changes in Halobacterium salinarum [PDF]

Molecular Microbiology, 2005
Summary In Halobacterium salinarum mutants containing either of the light‐driven ion pumps bacteriorhodopsin (H + ) or halorhodopsin (Cl – ) as their only retinal protein, a decrease of ...
Koch, M., Oesterhelt, D.
openaire   +3 more sources

Complex Effects of Cytochrome P450 Monooxygenase on Purple Membrane and Bacterioruberin Production in an Extremely Halophilic Archaeon: Genetic, Phenotypic, and Transcriptomic Analyses

Frontiers in Microbiology, 2018
Halophilic archaea are known to produce a diverse array of pigments for phototrophy and photoprotection. The aim of this paper was to determine the role of a Halobacterium gene encoding the predicted cytochrome P450 monooxygenase (CYP174A1) in pigment ...
Walter J. Müller, Martha S. Smit, Esta van Heerden, Melinda D. Capes, Shiladitya DasSarma   +4 more
doaj   +1 more source

Archaeal Cytoskeletal Protein CetZ1 Influences Assembly of the Motility Machinery

Molecular Microbiology, EarlyView.
The Haloferax volcanii tubulin‐like protein CetZ1 is required for rod‐cell morphogenesis and motility. We show that CetZ1 loss or GTPase inactivation impairs assembly of the motility machinery, including the archaellum base protein ArlD, the chemotaxis adaptor CheW1, and the response regulator CheY.
Hannah J. Brown, Md Imtiazul Islam, Juanfang Ruan, Matthew A. B. Baker, Solenne Ithurbide, Iain G. Duggin   +5 more
wiley   +1 more source

Recent Advances in the Study of Gas Vesicle Proteins and Application of Gas Vesicles in Biomedical Research

Life, 2022
The formation of gas vesicles has been investigated in bacteria and haloarchaea for more than 50 years. These air-filled nanostructures allow cells to stay at a certain height optimal for growth in their watery environment. Several gvp genes are involved
Felicitas Pfeifer
doaj   +1 more source

Molecular‐Level Modulation of Proton Transport via Electron‐Proton Coupling in Bio‐p‐n Junctions

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 6, November 2026.
We developed a pH‐sensing device capable of operating in biological environments. A biohybrid p–n junction was constructed using bacteriorhodopsin (bR) and the photoconductive polymer poly(3‐hexylthiophene) (P3HT). Under light illumination, the photocurrent exhibits distinct transitions across various pH gradients, demonstrating the system's high ...
Chen Song, Yujia Lv, Haotian Pang, Haoqi Fan, Jiayin Huang, Weibin Zhou, Dan Luo, Aochen Wang   +7 more
wiley   +1 more source

Quaternary structures of Streptococcus pneumoniae nucleoside diphosphate kinase: From hexamers to supramolecular assemblies

Protein Science, Volume 35, Issue 9, September 2026.
Abstract The nucleoside diphosphate kinase (NDK) is a key enzyme that controls the balance of nucleotide pools in all living organisms. Beyond this fundamental role, NDKs exert pleiotropic effects in many cellular processes, including cell development, signal transduction, differentiation, tumor metastasis, and gene expression. The quaternary structure
Julie Kerboeuf, Paul Nouri, Frédéric Galisson, Laetitia Daury, Marie‐France Giraud, Olivier Lambert, Cédric Orelle, Lionel Ballut, Elise Kaplan, Jean‐Michel Jault, Cécile Gonzalez   +10 more
wiley   +1 more source

Identification of Archaea species from hot spring water in Hammam AL-Allel at Mosul Governorate

مجلة مركز بحوث التقنيات الاحيائية, 2014
Isolate, Identify of some species belonging to Archaea from water of hot and sulphid springs in Hammam Al-Allel City/ Nenavah Governorate. Seventy five samples were collected from hot springs during 2012. The Archaea species were isolated using ordinary
Mohammed A . AL-Qatan, Basima A. Abdullah, Waad Mahmood Raoof   +2 more
doaj   +1 more source

Es werde Licht! Licht als Antrieb und Regulator in synthetischen Zellen

Angewandte Chemie, Volume 138, Issue 24, 8 June 2026.
Zellen sind Systeme außerhalb des Gleichgewichts, die ihre Eigenschaften in Raum und Zeit regulieren. In biomimetischen synthetischen Zellen bietet Licht eine einzigartige Möglichkeit, Vorgänge räumlich und zeitlich anzutreiben und zu kontrollieren.
Matthew E. Allen, Saskia Frank, Mehaiarii Louis, Atreyee Saha, Ali Heidari, Seraphine V. Wegner   +5 more
wiley   +1 more source

Let There be Light! Light as an Engine and Regulator in Synthetic Cells

Angewandte Chemie International Edition, Volume 65, Issue 24, 8 June 2026.
Cells are out‐of‐equilibrium systems that regulate their spatiotemporal features. In biomimetic synthetic cells, light offers a unique way for energizing and regulating events in space and time. This review explores the implementation of light‐responsive tools in synthetic cells to replicate biological functions and enable new bioinspired behaviors ...
Matthew E. Allen, Saskia Frank, Mehaiarii Louis, Atreyee Saha, Ali Heidari, Seraphine V. Wegner   +5 more
wiley   +1 more source