Results 51 to 60 of about 506 (136)

Viral Hijack of Filamentous Surface Structures in Archaea and Bacteria

open access: yesViruses, 2021
The bacterial and archaeal cell surface is decorated with filamentous surface structures that are used for different functions, such as motility, DNA exchange and biofilm formation. Viruses hijack these structures and use them to ride to the cell surface
Colin Tittes   +2 more
doaj   +1 more source

Surface resistance to SSVs and SIRVs in pilin deletions of Sulfolobus islandicus

open access: yesMolecular Microbiology, Volume 113, Issue 4, Page 718-727, April 2020., 2020
Evolving SSV9‐resistant Sulfolobus islandicus revealed pilin deletions in host chromosomes that confer broad viral resistance. Pilins were found to be a point of adsorption for Sulfolobus rod‐shaped virus 8, while SSV9 was still able to adsorb, but not infect.
Elizabeth F. Rowland   +3 more
wiley   +1 more source

Whole‐genome comparison between the type strain of Halobacterium salinarum (DSM 3754T) and the laboratory strains R1 and NRC‐1

open access: yesMicrobiologyOpen, Volume 9, Issue 2, February 2020., 2020
The genome of the Halobacterium salinarum type strain (91‐R6, DSM 3754) was compared at the DNA and protein levels to the genomes of two well‐studied laboratory strains, NRC‐1 and R1. The chromosomes and portions of the plasmids were very closely related. However, distinct homologs for proteins involved in motility and N‐glycosylation were encountered.
Friedhelm Pfeiffer   +4 more
wiley   +1 more source

Decoding the Chemical Language of Ribosomally Synthesized and Post‐Translationally Modified Peptides from the Untapped Archaea Domain

open access: yesAngewandte Chemie, Volume 137, Issue 24, June 10, 2025.
Secondary metabolites (SMs) are essential across all life domains, yet those originating from the Archaea domain remain poorly understood. Here, the systematic genome mining and the pioneering heterologous expression of archaeal SMs have revealed the chemical landscape of archaeal lanthipeptides, showing both canonical and non‐canonical forms.
Zhi‐Man Song   +13 more
wiley   +2 more sources

Bypassing the Need for the Transcriptional Activator EarA through a Spontaneous Deletion in the BRE Portion of the fla Operon Promoter in Methanococcus maripaludis

open access: yesFrontiers in Microbiology, 2017
In Methanococcus maripaludis, the euryarchaeal archaellum regulator A (EarA) is required for the transcription of the fla operon, which is comprised of a series of genes which encode most of the proteins needed for the formation of the archaeal swimming ...
Yan Ding   +3 more
doaj   +1 more source

Tree of motility – A proposed history of motility systems in the tree of life

open access: yesGenes to Cells, Volume 25, Issue 1, Page 6-21, January 2020., 2020
The known motilities are classified based on the unique classes of movement‐producing protein architectures. Based on this criterion, the current total of independent motility systems stands at 18 types. Presence or absence of a peptidoglycan layer, the acquisition of robust membrane dynamics, the enlargement of cells and environmental opportunities ...
Makoto Miyata   +27 more
wiley   +1 more source

The nucleotide‐dependent interaction of FlaH and FlaI is essential for assembly and function of the archaellum motor [PDF]

open access: hybridMolecular Microbiology, 2015
SummaryThe motor of the membrane‐anchored archaeal motility structure, the archaellum, contains FlaX, FlaI and FlaH. FlaX forms a 30 nm ring structure that acts as a scaffold protein and was shown to interact with the bifunctional ATPase FlaI and FlaH. However, the structure and function of FlaH has been enigmatic.
Paushali Chaudhury   +11 more
openalex   +6 more sources

Expanding the archaellum regulatory network - the eukaryotic protein kinases ArnC and ArnD influence motility ofSulfolobus acidocaldarius [PDF]

open access: goldMicrobiologyOpen, 2016
Expression of the archaellum, the archaeal-type IV pilus-like rotating motility structure is upregulated under nutrient limitation. This is controlled by a network of regulators, called the archaellum regulatory network (arn). Several of the components of this network in Sulfolobus acidocaldarius can be phosphorylated, and the deletion of the ...
Lena Hoffmann   +7 more
openalex   +4 more sources

Novel pili-like surface structures of Halobacterium salinarum strain R1 are crucial for surface adhesion

open access: yesFrontiers in Microbiology, 2015
It was recently shown that haloarchaeal strains of different genera are able to adhere to surfaces and form surface-attached biofilms. However the surface structures mediating the adhesion were still unknown.
Gerald eLosensky   +5 more
doaj   +1 more source

Molecular acclimation of Halobacterium salinarum to halite brine inclusions

open access: yesFrontiers in Microbiology, 2023
Halophilic microorganisms have long been known to survive within the brine inclusions of salt crystals, as evidenced by the change in color for salt crystals containing pigmented halophiles.
Charly Favreau   +10 more
doaj   +1 more source

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