Results 71 to 80 of about 5,757 (229)

A genetic investigation of the KEOPS complex in halophilic Archaea. [PDF]

open access: yesPLoS ONE, 2012
KEOPS is an important cellular complex conserved in Eukarya, with some subunits conserved in Archaea and Bacteria. This complex was recently found to play an essential role in formation of the tRNA modification threonylcarbamoyladenosine (t(6)A), and was
Adit Naor   +6 more
doaj   +1 more source

RadB acts in homologous recombination in the archaeon Haloferax volcanii, consistent with a role as recombination mediator [PDF]

open access: yes, 2017
Homologous recombination plays a central role in the repair of double-strand DNA breaks, the restart of stalled replication forks and the generation of genetic diversity.
Allers   +41 more
core   +2 more sources

The discovery of CRISPR in archaea and bacteria [PDF]

open access: yes, 2016
CRISPR-Cas are self-/nonself-discriminating systems found in prokaryotic cells. They represent a remarkable example of molecular memory that is hereditarily transmitted.
Mojica, Francisco J.M.   +1 more
core   +2 more sources

Growth Phase Dependent Cell Shape of Haloarcula

open access: yesMicroorganisms, 2021
Several haloarchaea are reported to be pleomorphic, while others exhibit remarkable shapes, such as squares. Recently, Haloferax volcanii was found to alter its morphology during growth.
Sabine Schwarzer   +3 more
doaj   +1 more source

PCNA-binding proteins in the archaea : novel functionality beyond the conserved core [PDF]

open access: yes, 2016
Sliding clamps play an essential role in coordinating protein activity in DNA metabolism in all three domains of life. In eukaryotes and archaea the sliding clamp is PCNA (proliferating cell nuclear antigen).
MacNeill, Stuart Andrew
core   +1 more source

In vitro Analysis of Ubiquitin-like Protein Modification in Archaea

open access: yesBio-Protocol, 2018
The ubiquitin-like (Ubl) protein is widely distributed in Archaea and involved in many cellular pathways. A well-established method to reconstitute archaeal Ubl protein conjugation in vitro is important to better understand the process of archaeal Ubl ...
Xian Fu   +2 more
doaj   +1 more source

Autocatalytic maturation of the Tat-dependent halophilic subtilase Nep produced by the archaeon Natrialba magadii [PDF]

open access: yes, 2012
Halolysins are subtilisin-like extracellular proteases produced by haloarchaea that possess unique protein domains and are salt dependent for structural integrity and functionality. In contrast to bacterial subtilases, thematurationmechanismof halolysins
de Castro, Rosana Esther   +3 more
core   +1 more source

Regulated Iron Siderophore Production of the Halophilic Archaeon Haloferax volcanii. [PDF]

open access: yesBiomolecules, 2020
Iron is part of many redox and other enzymes and, thus, it is essential for all living beings. Many oxic environments have extremely low concentrations of free iron. Therefore, many prokaryotic species evolved siderophores, i.e., small organic molecules that complex Fe3+ with very high affinity.
Niessen N, Soppa J.
europepmc   +7 more sources

A rhomboid protease gene deletion affects a novel oligosaccharide N-linked to the S-layer glycoprotein of Haloferax volcanii [PDF]

open access: yes, 2014
Rhomboid proteases occur in all domains of life; however, their physiological role is not completely understood, and nothing is known of the biology of these enzymes in Archaea. One of the two rhomboid homologs of Haloferax volcanii (RhoII) is fused to a
Casabuono, Adriana Cristina   +6 more
core   +2 more sources

Archaeal membrane-associated proteases: insights on Haloferax volcanii and other haloarchaea

open access: yesFrontiers in Microbiology, 2015
The function of membrane proteases range from general house-keeping to regulation of cellular processes. Although the biological role of these enzymes in archaea is poorly understood, some of them are implicated in the biogenesis of the archaeal cell ...
Maria Ines Giménez   +2 more
doaj   +1 more source

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