Results 121 to 130 of about 21,258 (244)

tRNA signatures reveal polyphyletic origins of streamlined SAR11 genomes among the alphaproteobacteria [PDF]

, 2013
Phylogenomic analyses are subject to bias from compositional convergence and noise from horizontal gene transfer (HGT). Compositional convergence is a likely cause of controversy regarding phylogeny of the SAR11 group of Alphaproteobacteria that have ...
Amrine, Katherine C. H., Ardell, David H., Swingley, Wesley D.   +2 more
core   +4 more sources

Diversity and structural‐functional insights of alpha‐solenoid proteins

Protein Science, Volume 33, Issue 11, November 2024.
Abstract Alpha‐solenoids are a significant and diverse subset of structured tandem repeat proteins (STRPs) that are important in various domains of life. This review examines their structural and functional diversity and highlights their role in critical cellular processes such as signaling, apoptosis, and transcriptional regulation.
Paula Nazarena Arrías, Zarifa Osmanli, Estefanía Peralta, Patricio Manuel Chinestrad, Alexander Miguel Monzon, Silvio C. E. Tosatto   +5 more
wiley   +1 more source

Infecção por riquétsias em carrapatos de aves silvestres em duas ecorregiões da Argentina [PDF]

, 2016
Several tick-borne Rickettsia species are recognized human pathogens in Argentina. Here we evaluated rickettsial infection in ticks collected on passerine birds during 2011-2012 in two eco-regions of Argentina.
Borges Costa, Francisco, Diaz, Luis Adrian, Flores, Fernando Sebastián, Labruna, Marcelo Bahía, Nava, Santiago   +4 more
core   +1 more source

First molecular diagnosis of the human pathogen Rickettsia raoultii and other spotted fever group rickettsiae in Sudanese ixodid ticks from domestic ruminants

Veterinary Medicine and Science, Volume 10, Issue 6, November 2024.
In this manuscript, the authors collected ixodid ticks and examined the presence of Rickettsia species by PCR. By performing sequencing and phylogenetic analysis, the authors identified the presence of four different Rickettsia species in three tick species found on three mammalian hosts.
Nagwa Eisawi, Jabbar Ahmed, Mohammed A. Bakheit, Dina A. Hassan, Mohammed O. Hussien, Abdel Rahim M. El Hussein   +5 more
wiley   +1 more source

Serologic evidence of the exposure of small mammals to spotted-fever Rickettsia and Rickettsia bellii in Minas Gerais, Brazil

Journal of Infection in Developing Countries, 2016
Introduction: Sources of pathogenic Rickettsia in wildlife are largely unknown in Brazil. In this work, potential tick vectors and seroreactivity of small mammals against four spotted-fever group Rickettsia (R. rickettsii, R. parkeri, R.
Marcella Gonçalves Coelho, Vanessa do Nascimento Ramos, Jean Ezequiel Limongi, Elba Regina Sampaio de Lemos, Alexandro Guterres, Sócrates Fraga da Costa Neto, Tatiana Rozental, Cibele Rodrigues Bonvicino, Paulo Sérgio D'Andrea, Jonas Moraes-Filho, Marcelo Bahia Labruna, Matias Pablo Juan Szabó   +11 more
doaj   +1 more source

Detecção sorológica de riquétsias do grupo da febre maculosa e levantamento acarológico em equinos no Distrito Federal, Brasil [PDF]

, 2014
Dissertação (mestrado)—Universidade de Brasília, Faculdade de Agronomia e Veterinária, 2014.A febre maculosa brasileira (FMB) é uma zoonose causada pela bactéria Rickettsia rickettsii e transmitida a humanos por carrapatos.
Martins, Gustavo Pereira
core  

Serological differentiation of antibodies against Rickettsia helvetica, R. raoultii, R. slovaca, R. monacensis and R. felis in dogs from Germany by a micro-immunofluorescent antibody test [PDF]

, 2015
Background Spotted Fever Group (SFG) Rickettsiae can cause febrile diseases with or without rash in humans worldwide. In Germany only limited data are available about their medical significance.
Dobler, Gerhard, Kohn, Barbara, Moritz, Andreas, Pachnicke, Stefan, Pfeffer, Martin, Silaghi, Cornelia, Wächter, Miriam, Wölfel, Silke   +7 more
core   +3 more sources

Brazilian spotted fever in cart horses in a non-endemic area in Southern Brazil Febre maculosa brasileira em cavalo de carroceiro em área não-endêmica no Sul do Brasil

Revista Brasileira de Parasitologia Veterinária, 2010
Brazilian Spotted Fever (BSF) is an often fatal zoonosis caused by the obligate intracellular bacterium Rickettsia rickettsii. The disease is generally transmitted to humans by Amblyomma spp. ticks. Serological evidence of past infection by R. rickettsii
Marta Cristina Diniz de Oliveira Freitas, Marcelly Grycajuk, Marcelo Beltrão Molento, José Bonacin, Marcelo Bahia Labruna, Richard de Campos Pacheco, Jonas Moraes-Filho, Ivan Deconto, Alexander Welker Biondo   +8 more
doaj   +1 more source

Curvature and torsion in growing actin networks

, 2007
Intracellular pathogens such as Listeria monocytogenes and Rickettsia rickettsii move within a host cell by polymerizing a comet-tail of actin fibers that ultimately pushes the cell forward.
Daniel A Fletcher, Fletcher D A, Joshua W Shaevitz   +2 more
core   +1 more source

Phenology and habitat associations of the invasive Asian longhorned tick from Ohio, USA

Medical and Veterinary Entomology, Volume 38, Issue 3, Page 314-324, September 2024.
Asian longhorned tick (ALT) nymphs emerged in June, followed by adults, and concluded with larvae in fall. Potential differences in phenology were identified between Ohio and Eastern Coast US states. ALTs were detected in all habitat types including grassland, forest and edge, but not on wildlife hosts, including small‐ and medium‐sized mammals and ...
Andreas Eleftheriou, Benjamin Zeiger, Jazmin Jennings, Risa Pesapane   +3 more
wiley   +1 more source