Results 81 to 90 of about 12,377 (183)

Chemical and Biological Properties of Hymenaea courbaril L.: A Review

open access: yesChemistry &Biodiversity, Volume 23, Issue 2, February 2026.
PRISMA‐style flowchart showing the screening process of studies identified and selected in the review has been added to the attachments. ABSTRACT Hymenaea courbaril L., commonly known as jatobá, is a plant traditionally used by native populations for medicinal purposes, in addition to providing edible fruits and durable wood for construction.
Cicera Alane Coelho Gonçalves   +6 more
wiley   +1 more source

A comparison of super‐resolution microscopy techniques for imaging tightly packed microcolonies of an obligate intracellular bacterium

open access: yesJournal of Microscopy, Volume 301, Issue 2, Page 187-205, February 2026.
Abstract Conventional optical microscopy imaging of obligate intracellular bacteria is hampered by the small size of bacterial cells, tight clustering exhibited by some bacterial species and challenges relating to labelling such as background from host cells, a lack of validated reagents, and a lack of tools for genetic manipulation.
Alison J. North   +7 more
wiley   +1 more source

Regulation of Caulobacter crescentus ilvBN gene expression [PDF]

open access: yesJournal of Bacteriology, 1994
As part of an effort to determine the mechanisms employed by Caulobacter crescentus to regulate gene expression, the ilvBN genes encoding the two subunits of an acetohydroxy acid synthase (AHAS) have been characterized. Analysis of the DNA sequences indicated that the C. crescentus AHAS was highly homologous to AHAS isozymes from other organisms.
J C, Tarleton, J, Malakooti, B, Ely
openaire   +2 more sources

An open axial channel of the AAA ClpXP protease enhances degradation of specific classes of protein substrates

open access: yesProtein Science, Volume 35, Issue 1, January 2026.
Abstract ClpXP and other AAA proteases maintain proteostasis and regulate cellular functions by degrading misfolded, incomplete, or regulatory proteins. ClpX recognizes substrates via unstructured degron sequences, typically located at the N‐ or C‐terminus. Although five classes of degrons are known, only recognition of the ssrA tag, a C‐motif‐1 degron,
Yifei Lyu   +4 more
wiley   +1 more source

Phasins PhbP2 and PhbP3 Are Involved in the Depolymerization of Polyhydroxybutyrate in Azotobacter vinelandii

open access: yesJournal of Basic Microbiology, Volume 65, Issue 12, December 2025.
ABSTRACT Polyhydroxybutyrate (PHB) is a natural polyester synthesized and stored intracellularly as cytoplasmic granules, serving as a carbon and energy reserve in certain bacteria. These granules are surrounded by a variety of proteins, including those directly involved in PHB metabolism—both in its synthesis and degradation—as well as a group of non ...
Jessica Ruiz‐Escobedo   +8 more
wiley   +1 more source

Characterization of the SOS Regulon ofCaulobacter crescentus [PDF]

open access: yesJournal of Bacteriology, 2008
ABSTRACTThe SOS regulon is a paradigm of bacterial responses to DNA damage. A wide variety of bacterial species possess homologs oflexAandrecA, the central players in the regulation of the SOS circuit. Nevertheless, the genes actually regulated by the SOS have been determined only experimentally in a few bacterial species.
Raquel Paes, da Rocha   +4 more
openaire   +2 more sources

Bacterial actin MreB forms antiparallel double filaments

open access: yeseLife, 2014
Filaments of all actin-like proteins known to date are assembled from pairs of protofilaments that are arranged in a parallel fashion, generating polarity.
Fusinita van den Ent   +4 more
doaj   +1 more source

Regulatory response to carbon starvation in Caulobacter crescentus. [PDF]

open access: yesPLoS ONE, 2011
Bacteria adapt to shifts from rapid to slow growth, and have developed strategies for long-term survival during prolonged starvation and stress conditions. We report the regulatory response of C.
Leticia Britos   +5 more
doaj   +1 more source

ZapA uses a two‐pronged mechanism to facilitate Z ring formation in Escherichia coli

open access: yesmLife, Volume 4, Issue 6, Page 602-622, December 2025.
Abstract The tubulin‐like protein FtsZ assembles into the Z ring that leads to the assembly and activation of the division machinery in most bacteria. ZapA, a widely conserved protein that interacts with FtsZ, plays a pivotal role in organizing FtsZ filaments into a coherent Z ring.
Yuanyuan Cui   +10 more
wiley   +1 more source

Morphology of Caulobacter crescentus and the Mechanical Role of Crescentin [PDF]

open access: yesBiophysical Journal, 2009
Bacterial cells exist in a wide variety of shapes. To understand the mechanism of bacterial shape maintenance, we investigate the morphology of Caulobacter crescentus, which is a Gram-negative bacterium that adopts a helical crescent shape. It is known that crescentin, an intermediate filament homolog of C.
Kim, Jin Seob, Sun, Sean X.
openaire   +2 more sources

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