Results 81 to 90 of about 36,597 (195)

Late Stage Mannan Metabolism in Cellvibrio japonicus Requires the Combined Action of a Mannosyl‐Glucose Phosphorylase and a Mannobiose Epimerase

Molecular Microbiology, Volume 125, Issue 2, Page 173-184, February 2026.
Model for the non‐PTS utilization of manno‐oligosaccharides by Cellvibrio japonicus. The Mgp130A and EpiA enzymes are essential for the utilization of mannose residues. ABSTRACT Manno‐oligosaccharides and their metabolism play important roles in gut health, pharmaceutical development, and renewable chemical production.
Jessica K. Novak, Jeffrey G. Gardner
wiley   +1 more source

Pre‐dispositions and epigenetic inheritance in the Escherichia coli lactose operon bistable switch

Molecular Systems Biology, 2010
The lactose operon regulation in Escherichia coli is a primary model of phenotypic switching, reminiscent of cell fate determination in higher organisms.
Lydia Robert, Gregory Paul, Yong Chen, François Taddei, Damien Baigl, Ariel B Lindner   +5 more
doaj   +1 more source

Subpopulations of sensorless bacteria drive fitness in fluctuating environments.

PLoS Biology, 2020
Populations of bacteria often undergo a lag in growth when switching conditions. Because growth lags can be large compared to typical doubling times, variations in growth lag are an important but often overlooked component of bacterial fitness in ...
Thomas Julou, Ludovit Zweifel, Diana Blank, Athos Fiori, Erik van Nimwegen   +4 more
doaj   +1 more source

Sequence Dependence of Transcription Factor-Mediated DNA Looping [PDF]

, 2012
DNA is subject to large deformations in a wide range of biological processes. Two key examples illustrate how such deformations influence the readout of the genetic information: the sequestering of eukaryotic genes by nucleosomes, and DNA looping in ...
Barry, Bellomy, Bellomy, Brenowitz, Butler, Chen, Chen, Cloutier, Cloutier, Drew, Du, Echols, Edelman, Finzi, Frank, Garcia, Geggier, Han, Hirsh, Hogan, Hsieh, Jacobson, Krämer, Lewis, Lowary, Luger, Luijsterburg, Martin Lindén, Matthews, Mehta, Milstein, Morgan, Müller, Newman, Normanno, Oehler, Olson, Peters, Plischke, Ptashne, Rippe, Rob Phillips, Rutkauskas, Saiz, Schafer, Schleif, Segall, Shimada, Stephanie Johnson, Swigon, Tolhuis, Towles, Vanzi, Villa, Watson, Whitson, Whitson, Widom, Wong, Xu, Yin, Zhan, Zhang   +62 more
core   +4 more sources

Hydrogen Evolution via Oxygen Tolerant [NiFe]‐Hydrogenase Immobilized on TiO2 Nanotubes

Nano Select, Volume 7, Issue 1, January 2026.
Hydrogenase‐immobilized TiO2 nanotube was developed by the electropolymerization of polypyrrole and hydrogenase drop‐casting, and cathodic current is reported. Hydrogenase was extracted from E. coli, which can be more oxygen tolerant than the previous hydrogenase electrode.
Hwapyong Kim, Ki Nam Kim, Sung Hyun Lee, Chang‐Hoon Nam, Young‐Sam Lee, Su‐Il In   +5 more
wiley   +1 more source

From adjacent activation in E. coli and DNA cyclization to eukaryotic enhancers : the elements of a puzzle.

Frontiers in Genetics, 2014
DNA cyclization, E. coli lac repressor binding to two spaced lac operators and repression enhancement can be successfully used for a better understanding of the conditions required for interaction between eukaryotic enhancers and the machinery of ...
Michèle eAMOUYAL
doaj   +1 more source

An open reading frame upstream from the nifH gene of Klebsiella pneumoniae [PDF]

, 1983
An open reading frame upstream from nifHDK operon of Klebsiella pneumoniae had been described. The orientation of this open reading frame is opposite to that of nifHDK and sequence homology was found between the open reading frame promoter and the ...
Kong, Qiu-tong, Shen, San-chiun, Wu, Qi-long, Xue, Zhong-tian   +3 more
core  

Laccases from lactic acid bacteria show cuprous oxidase activity and capture Cu(II) and Ag(I) ions

Protein Science, Volume 35, Issue 1, January 2026.
Abstract Several laccases derived from lactic acid bacteria (LAB) display specific structural features, such as two methionine residues at the entrance of the T1Cu center, and an extended C‐terminal end enriched in methionine and histidine. To investigate their functional roles, we engineered mutant variants of the laccase Pp4816 from Pediococcus ...
Raquel Gascó, Ramon Sendra, Isidoro Olmeda, Francisco Paredes‐Martínez, Sergi Ferrer, Isabel Pardo, Patricia Casino   +6 more
wiley   +1 more source

RNA polymerase structure and function at lac operon

Comptes Rendus. Biologies, 2005
Transcription of E. coli lac operon by RNA polymerase (RNAP) is a classic example of how the basic functions of this enzyme, specifically the ability to recognize/bind promoters, melt the DNA and initiate RNA synthesis, is positively regulated by transcription activators, such as cyclic AMP ...
Sergei, Borukhov, Jookyung, Lee
openaire   +2 more sources

Interaction of Staphylococcus aureus di‐iron Repair of Iron Centers protein with the iron–sulfur cluster assembly SUF system

Protein Science, Volume 35, Issue 1, January 2026.
Abstract Repair of Iron Centers (RIC) proteins are present in several pathogens, including Staphylococcus aureus, contributing to resistance to nitroxidative stress and virulence. In this work, we investigated the molecular mechanisms by which S. aureus RIC facilitates iron mobilization, through structural analyses and functional studies.
Frederico M. Lourenço, Liliana S. O. Silva, Mafalda R. Almeida, Filipe Folgosa, Pedro M. Matias, Sandra M. Carvalho, João C. Lima, Célia V. Romão, Lígia M. Saraiva   +8 more
wiley   +1 more source