Results 131 to 140 of about 52,461 (230)

Heterotropic regulation and negative homotropic cooperativity

FEBS Open Bio, EarlyView.
We identified a structural module common to some proteins that couple negative cooperativity with heterotropic regulation, two features that rarely coexist. These proteins are ring‐like and present an ordered asymmetry whereby noncontacting subunits are symmetric, and their tertiary structure differs from that of contacting subunits.
Veronica Morea, Francesco Angelucci, Federica Arnesano, Gianmarco Pascarella, Patrizio Di Micco, Andrea Bellelli   +5 more
wiley   +1 more source

Investigação em bactérias resistentes a antibióticos

, 2011
Cientistas portuguesas identificam que monóxido de carbono tem capacidade para matar bactérias, especialmente bactérias hospitalares muito resistentes aos antibióticos atualmente existentesEducação Superior::Ciências da Saúde ...
TV Ciência Portugal
core   +1 more source

Bactérias.

, 2017
Os organismos procariotos são agrupados em dois domínios Bacteria e Archea. As principais diferenças entre eles estão na composição química, na atividade e no ambiente em que se desenvolvem.
PIMENTEL, I. C., DIONÍSIO, J. A., SIGNOR, D.   +2 more
core  

Avidin is evolutionarily conserved in fish but dispensable for development and resistance against Streptococcus agalactiae in zebrafish

FEBS Open Bio, EarlyView.
The presence of biotin‐binding avidin proteins in fish and their biological significance are poorly characterized. We cataloged fish avidins and demonstrate that they are widely present and evolutionarily conserved. We created avd knockout zebrafish and show that zebavidin is dispensable for development and that resistance of avd knockout embryos in ...
Anni K. Saralahti, Markus J. T. Ojanen, Mataleena Parikka, Otto Kauko, Mika Rämet, Vesa P. Hytönen   +5 more
wiley   +1 more source

[Plasmid-mediated colistin resistance in pathogenic bacteria]. [PDF]

Rev Med Inst Mex Seguro Soc
Casillas-Vega N, Mendoza-Olazarán S.
europepmc   +1 more source

Structural and biochemical insights into the thermostable esterase Ta0887 from Thermoplasma acidophilum

FEBS Open Bio, EarlyView.
In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey, Miriam Livier Llamas‐García, Gabriela M. Montero‐Morán, Leticia Santos, Samuel Lara‐González   +4 more
wiley   +1 more source

Respiratory infectious diseases in intensive care units’ patients during 2024, in two hospitals in Guayaquil, Ecuador [PDF]

Biomedica
Sánchez-Amador F, Merejildo M, Solórzano L, Bedoya C, Luzuriaga F, Alvarado J, Miranda M, Alvarado X.   +7 more
europepmc   +1 more source

Salmonella enterica serovar typhi limits the potency of typhoid toxin and ADP‐ribosylating toxin AB to establish a persistent infection

FEBS Open Bio, EarlyView.
The two catalytic subunits of typhoid toxin dissociate from the holotoxin in the ER of an intoxicated cell, but only CdtB exits the ER to generate immunosuppressive effects. PltA is retained in the ER and sequestered from its cytosolic target, thus allowing the anti‐inflammatory effects of CdtB to promote intestinal colonization.
Maria C. Zabala‐Rodriguez, Juliette K. Tinker, Teresa Frisan, Taj Azarian, Ken Teter   +4 more
wiley   +1 more source

From microscopy to metagenomics: Evolution and challenges in clinical microbiology [PDF]

Biomedica
Hidalgo M.
europepmc   +1 more source

Investigação em bactérias resistentes a antibióticos

, 2010
Educação Superior::Ciências da Saúde::FarmáciaCientistas portuguesas identificam que monóxido de carbono tem capacidade para matar bactérias, especialmente bactérias hospitalares muito resistentes aos antibióticos atualmente ...
TV Ciência Portugal
core