Halofilins as emerging bactofilin families of archaeal cell shape plasticity orchestrators

Z Curtis, P Escudeiro, J Mallon, O Leland… - Proceedings of the …, 2024 - pnas.org
Bactofilins are rigid, nonpolar bacterial cytoskeletal filaments that link cellular processes to
specific curvatures of the cytoplasmic membrane. Although homologs of bactofilins have …

MinD proteins regulate CetZ1 localization in Haloferax volcanii

HJ Brown, IG Duggin - Frontiers in Microbiology, 2024 - frontiersin.org
CetZ proteins are archaea-specific homologs of the cytoskeletal proteins FtsZ and tubulin. In
the pleomorphic archaeon Haloferax volcanii, CetZ1 contributes to the development of rod …

Iron starvation results in up-regulation of a probable Haloferax volcanii siderophore transporter

AL Sailer, Z Jevtic, B Stoll, J Wörtz, K Sharma… - Frontiers in …, 2024 - frontiersin.org
The response of the haloarchaeal model organism Haloferax volcanii to iron starvation was
analyzed at the proteome level by data-independent acquisition mass spectrometry. Cells …

MinD2 modulates cell shape and motility in the archaeon Haloferax volcanii

M Patro, F Grünberger, S Sivabalasarma… - Frontiers in …, 2024 - frontiersin.org
In bacteria and archaea, proteins of the ParA/MinD family of ATPases regulate the
spatiotemporal organization of various cellular cargoes, including cell division proteins …

Intermolecular Gene Conversion for the Equalization of Genome Copies in the Polyploid Haloarchaeon Haloferax volcanii: Identification of Important Proteins

H Özer, D Wasser, L Sandner, J Soppa - Genes, 2024 - mdpi.com
The model haloarchaeon Haloferax volcanii is polyploid with about 20 copies of its major
chromosome. Recently it has been described that highly efficient intermolecular gene …

Genomic re-sequencing reveals mutational divergence across genetically engineered strains of model archaea

AL Soborowski, RK Hackley, S Hwang, G Zhou… - …, 2025 - journals.asm.org
Archaeal molecular biology has been a topic of intense research in recent decades as their
role in global ecosystems, nutrient cycles, and eukaryotic evolution comes to light. The …

Involvement of ArlI, ArlJ, and CirA in archaeal type IV pilin-mediated motility regulation

P Chatterjee, MA Garcia, JA Cote, K Yun… - Journal of …, 2024 - Am Soc Microbiol
Many prokaryotes use swimming motility to move toward favorable conditions and escape
adverse surroundings. Regulatory mechanisms governing bacterial flagella-driven motility …

Quorum sensing mediates morphology and motility transitions in the model archaeon Haloferax volcanii

P Chatterjee, CE Consoli, H Schiller, KK Winter… - bioRxiv, 2025 - biorxiv.org
Quorum sensing (QS) is a mechanism of intercellular communication that enables microbes
to alter gene expression and adapt to the environment. This cell-cell signaling is necessary …

Provirus deletion from Haloferax volcanii affects motility, stress resistance and CRISPR RNA expression

N Di Cianni, S Bolsinger, J Brendel, M Raabe… - bioRxiv, 2024 - biorxiv.org
Haloferax volcanii harbours four putative proviruses: Halfvol1, Halfvol2, Halfvol3 and
Halfvol4. In this study we successfully deleted all four provirus genomes, demonstrating, that …

Cell division protein A (CdpA) assembles and anchors the two FtsZ rings at midcell in haloarchaea

Y Liao, VD Shinde, D Hu, Z Xu, B Soderstrom… - bioRxiv, 2024 - biorxiv.org
Many archaea appear to divide through the coordinated activities of two distinct FtsZ
homologues, FtsZ1 and FtsZ2, and another bacterial cell division homologue, SepF, which …