Results 71 to 80 of about 28,271 (292)
Ultrastructural Characteristics of Sulfolobus acidocaldarius [PDF]
Microbiology, 1982 Summary: Isolates of Sulfolobus acidocaldarius from thermal areas in the United States and New Zealand were examined. Cell shape was growth phase-dependent and pleomorphism was more characteristic of certain isolates than of others. Cells prepared for electron microscopy by means which avoided centrifugation exhibited the lobate structure typical of ...
Ralph W. G. Wyckoff, Michael A. Mcclure
openaire +2 more sources
Idiosyncratic evolution of conserved eukaryote proteins that are similar in sequence to archaeal or bacterial proteins [PDF]
, 2008 Sequence comparisons have been made between the proteins of 571 prokaryote species including 46 archaea and 525 bacteria and the set of human proteins.
Roy J. Britten
core +2 more sources
Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes
FEBS Letters, EarlyView.Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley +1 more source
International Journal of Systematic and Evolutionary Microbiology, 2018 A novel hyperthermophilic, acidophilic and facultatively anaerobic archaeon, strain KD-1T, was isolated from an acidic hot spring in Indonesia and characterized with the phylogenetically related species Sulfurisphaera ohwakuensis Kurosawa et al.
K. Tsuboi +5 more
semanticscholar +1 more source
Advanced Science, EarlyView.This study proposes a novel model illustrating how quorum sensing (QS) regulates the type III‐A CRISPR‐Cas system in Staphylococcus aureus. The QS regulator AgrA suppresses CRISPR‐Cas activity by downregulating the transcriptional regulators SarA and ArcR.
Yang Li +6 more
wiley +1 more source
Acta Biochimica et Biophysica Sinica, 2022 Apurinic/apyrimidic (AP) sites are severe DNA damages and strongly block DNA extension by major DNA polymerases. Y-family DNA polymerases possess a strong ability to bypass AP sites and continue the DNA synthesis reaction, which is called translesion ...
Wang Weiwei +7 more
doaj +1 more source
RNA Biology, 2018 Sulfolobus islandicus Rey15A encodes one Type I-A and two Type III-B systems, all of which are active in mediating nucleic acids interference. However, the effectiveness of each CRISPR system against virus infection was not tested in this archaeon.
Tong Guo, Wenyuan Han, Q. She
semanticscholar +1 more source
Dimer-dimer stacking interactions are important for nucleic acid binding by the archaeal chromatin protein Alba [PDF]
, 2013 Archaea use a variety of small basic proteins to package their DNA. One of the most widespread and highly conserved is the Alba (Sso10b) protein. Alba interacts with both DNA and RNA in vitro, and we show in the present study that it binds more tightly ...
Ingledew, W John +3 more
core +1 more source
Dinucleoside Polyphosphates in Cellular Signaling: Function and Evolution Across Life
BioEssays, EarlyView.Although discovered more than 50 years ago, the cellular functions of Ap4A and related dinucleotides remain largely enigmatic. To address this knowledge gap, we organized a conference showcasing recent research that highlights the critical role of Ap4A as a global regulator across all domains of life.
Gert Bange +5 more
wiley +1 more source
Hot and crispy : CRISPR-Cas systems in the hyperthermophile Sulfolobus solfataricus [PDF]
, 2013 The CRISPR (clustered regularly interspaced short palindromic repeats) and Cas (CRISPR-associated) genes are widely spread in bacteria and archaea, representing an intracellular defence system against invading viruses and plasmids.
White, Malcolm F., Zhang, Jing
core +2 more sources