Results 81 to 90 of about 1,696 (166)

A Neighbour-joining tree for the thermopsin family A5.

, 2013
The tree was generated from the alignment of peptidase domains using FastTree. Labels are species names and sequence identifiers from the MEROPS database. Classification is indicated by coloured dots: yellow = Sulfolobales; red = Euryarchaeota; dark blue 
Neil D. Rawlings (212411)
core   +1 more source

An ancient family of SelB elongation factor-like proteins with a broad but disjunct distribution across archaea

BMC Evolutionary Biology, 2011
Background SelB is the dedicated elongation factor for delivery of selenocysteinyl-tRNA to the ribosome. In archaea, only a subset of methanogens utilizes selenocysteine and encodes archaeal SelB (aSelB).
Hauryliuk Vasili, Atkinson Gemma C, Tenson Tanel   +2 more
doaj   +1 more source

Cell Structure Changes in the Hyperthermophilic Crenarchaeon Sulfolobus islandicus Lacking the S-Layer

mBio, 2019
Rediscovery of the ancient evolutionary relationship between archaea and eukaryotes has revitalized interest in archaeal cell biology. Key to the understanding of archaeal cells is the surface layer (S-layer), which is commonly found in Archaea but whose
Changyi Zhang, Rebecca L. Wipfler, Yuan Li, Zhiyu Wang, Emily N. Hallett, Rachel J. Whitaker   +5 more
doaj   +1 more source

Insights into Archaeal Evolution and Symbiosis from the Genomes of a Nanoarchaeon and its Inferred Crenarchaeal Host from Obsidian Pool, Yellowstone National Park [PDF]

, 2013
Background: A single cultured marine organism, Nanoarchaeum equitans, represents the Nanoarchaeota branch of symbiotic Archaea, with a highly reduced genome and unusual features such as multiple split genes.
Wolf, Yuri I., Koonin, Eugene V., Wolf, Yuri L., Reysenbach, Anna-Louise, Podar, Mircea, Makarova, Kira S., Graham, David E., Kira S Makarova, Mircea Podar, Anna-Louise Reysenbach, David E Graham, Yuri I Wolf, Eugene V Koonin   +12 more
core   +2 more sources

Correction to ‘A clade of RHH proteins ubiquitous in Sulfolobales and their viruses regulates cell cycle progression’

Nucleic Acids Research, 2023

semanticscholar   +1 more source

SMV1 virus-induced CRISPR spacer acquisition from the conjugative plasmid pMGB1 in Sulfolobus solfataricus P2 [PDF]

, 2013
Organisms of the crenarchaeal order Sulfolobales carry complex CRISPR (clustered regularly interspaced short palindromic repeats) adaptive immune systems.
Shah, Shiraz Ali, Erdmann, Susanne, Garrett, Roger Antony   +2 more
core   +1 more source

Phylogenomic analysis of proteins that are distinctive of Archaea and its main subgroups and the origin of methanogenesis

BMC Genomics, 2007
Background The Archaea are highly diverse in terms of their physiology, metabolism and ecology. Presently, very few molecular characteristics are known that are uniquely shared by either all archaea or the different main groups within archaea.
Gupta Radhey S, Gao Beile
doaj   +1 more source

Cbp1 and Cren7 form chromatin-like structures that ensure efficient transcription of long CRISPR arrays

Nature Communications
CRISPR arrays form the physical memory of CRISPR adaptive immune systems by incorporating foreign DNA as spacers that are often AT-rich and derived from viruses. As promoter elements such as the TATA-box are AT-rich, CRISPR arrays are prone to harbouring
Fabian Blombach, Michal Sýkora, Jo Case, Xu Feng, Diana P. Baquero, Thomas Fouqueau, Duy Khanh Phung, Declan Barker, Mart Krupovic, Qunxin She, Finn Werner   +10 more
doaj   +1 more source

Coupling chromosome organization to genome segregation in Archaea

Nature Communications
Chromosome segregation is a fundamental process in all life forms and requires coordination with genome organization, replication and cell division. The mechanism that mediates chromosome segregation in archaea remains enigmatic.
Azhar F. Kabli, Irene W. Ng, Nicholas Read, Parul Pal, Julia Reimann, Ngat T. Tran, Sonja-Verena Albers, Tung B. K. Le, Daniela Barillà   +8 more
doaj   +1 more source

Reprogramming CRISPR-Mediated RNA Interference for Silencing of Essential Genes in Sulfolobales.

Methods in molecular biology, 2022
Erika Wimmer, I. A. Zink, C. Schleper
semanticscholar   +1 more source