Results 81 to 90 of about 7,342 (228)

Glutamine Hydrolysis by Imidazole Glycerol Phosphate Synthase Displays Temperature Dependent Allosteric Activation

Frontiers in Molecular Biosciences, 2018
The enzyme imidazole glycerol phosphate synthase (IGPS) is a model for studies of long-range allosteric regulation in enzymes. Binding of the allosteric effector ligand N'-[5'-phosphoribulosyl)formimino]-5-aminoimidazole-4-carboxamide-ribonucleotide ...
George P. Lisi, Allen A. Currier, J. Patrick Loria, J. Patrick Loria   +3 more
doaj   +1 more source

A hot origin of dissimilatory sulfite reduction catalyzed by DsrAB in the Paleoarchean Era

mLife, Volume 5, Issue 1, Page 108-121, February 2026.
Abstract Dissimilatory sulfite reduction (DSR) has been essential to microbial energy metabolism in the biogeochemical sulfur cycle since the Paleoarchean Era. However, due to the lack of an integrated assessment of geological record and genomic data, the evolutionary origin of DSR remains elusive in terms of time, habitat, and genetic basis.
Lingyun Tang, Zhenhao Luo, Shaoming Gao, Zhiliang Lin, Mengqi Sun, Runsheng Li, Shu‐Hong Gao, Geng Wu, Yiliang Li, Linan Huang, Lu Fan   +10 more
wiley   +1 more source

Factors influencing production of cellulases by Chaetomium thermophile var. coprophile

, 1990
Prodn. of extracellular cellulase by C. thermophile var coprophile isolated from soil, and grown in culture medium under different exptl. conditions, was studied. Cryst.
Vithayathil, PJ, Murthy, SK, Ganju, Ramesh K   +2 more
core  

Environmental Controls on Crenarchaeol Distributions in Hydrothermal Springs

Environmental Microbiology, Volume 28, Issue 2, February 2026.
The optimal pH and temperature for crenarchaeol (a unique archaeal lipid) production in hydrothermal springs are 7.4°C and 46°C, respectively, which has important implications for archaeal evolution. Our study also indicates that pH is the most important environmental variable for archaeal lipid membrane compositions.
Amanda N. Calhoun, Jerome Blewett, Daniel R. Colman, Maximiliano J. Amenabar, Carolynn M. Harris, Eric S. Boyd, Ann Pearson, William D. Leavitt   +7 more
wiley   +1 more source

A Survey of Protein Structures from Archaeal Viruses

Life, 2013
Viruses that infect the third domain of life, Archaea, are a newly emerging field of interest. To date, all characterized archaeal viruses infect archaea that thrive in extreme conditions, such as halophilic, hyperthermophilic, and methanogenic ...
Nikki Dellas, Mark J. Young, C. Martin Lawrence   +2 more
doaj   +1 more source

Engineering the hyperthermophilic archaeon Pyrococcus furiosus for 1-propanol production

Applied and Environmental Microbiology
Society relies heavily on chemicals traditionally produced through the refinement of fossil fuels. The conversion of renewable biomass to value-added chemicals by microbes, particularly hyperthermophiles (Topt ≥80°C), offers a renewable alternative to ...
Hailey C. O'Quinn, Jason L. Vailionis, Tania N. N. Tanwee, Katherine S. Holandez-Lopez, Ryan G. Bing, Farris L. Poole, Ying Zhang, Robert M. Kelly, Michael W. W. Adams   +8 more
doaj   +1 more source

Characteristics of a Thermophilic Bacteriophage.

Experimental Biology and Medicine, 1955
Summary1. A new thermophilic phage host system has been studied and described. It has been designated a thermophilic phage because the greatest number of infectious units was produced at 65°C, above or below which the number of particles was considerably less. 2. Phage is adsorbed very slowly, the maximum amount taken up being 85% in 30 minutes.
R, WHITE, C E, GEORGI, W E, MILITZER
openaire   +2 more sources

Emulsifying activity in thermophilic and extremely thermophilic microorganisms

Journal of Industrial Microbiology, 1996
Thermophilic and extremely thermophilic enrichments from several different environments produced cell-associated emulsifiers as did several pure cultures ofArchaea. The bioemulsifiers were effective over a wide range of pH, at NaCl concentrations up to 200 g L−1, and at temperatures up to 80°C.
G Trebbau de Acevedo, M J McInerney
openaire   +1 more source

Maltodextrin transport in the extremely thermophilic, lignocellulose degrading bacterium Anaerocellum bescii (f. Caldicellulosiruptor bescii)

Journal of Bacteriology
Sugar transport into microbial cells is a critical, yet understudied step in the conversion of lignocellulosic biomass to metabolic products. Anaerocellum bescii (formerly Caldicellulosiruptor bescii) is an extremely thermophilic, anaerobic bacterium ...
Hansen Tjo, Virginia Jiang, Jerelle A. Joseph, Jonathan M. Conway   +3 more
doaj   +1 more source

Characterization of Moderately Thermophilic Bacteria Isolated from Saline Hot Spring in Japan

Microbiology Indonesia, 2011
Twelve strains of moderately thermophilic bacteria were isolated from saline hot springs (55°C, pH 8.3) located in Odaito, Hokkaido, Japan. Based on their 16S rRNA gene sequences, all the strains were closely related phylogenetically each other ...
YOKO KAWASAKI, MADOKA AOKI, YORIYASU MAKINO, HIROYUKI SAKAI, YUKI TSUBOI, JUNKO UEDA, KEIKO WATANABE, SHUICI YAMAMOTO, NORIO KUROSAWA   +8 more
doaj   +1 more source