Results 41 to 50 of about 24,736 (258)
Methionine and threonine synthesis are limited by homoserine availability and not the activity of homoserine kinase in Arabidopsis thaliana [PDF]
SummaryHomoserine kinase (HSK) produces O‐phospho‐l‐homoserine (HserP) used by cystathionine γ‐synthase (CGS) for Met synthesis and threonine synthase (TS) for Thr synthesis. The effects of overexpressing Arabidopsis thaliana HSK, CGS, and Escherichia coli TS (eTS), each controlled by the 35S promoter, were compared.
Minsang Lee+5 more
openaire +3 more sources
Quorum quenching (QQ) is a novel, promising strategy that opens up a new perspective for controlling quorum-sensing (QS)-mediated bacterial pathogens.
Wenping Zhang+13 more
doaj +1 more source
Virulence in the Gram-negative pathogen Pseudomonas aeruginosa relies in part on the efficient functioning of two LuxI/R dependent quorum sensing (QS) cascades, namely the LasI/R and RhlI/R systems that generate and respond to N-(3-oxo)-dodecanoyl-L ...
Daniel Shin+7 more
semanticscholar +1 more source
Bacteria need to be isolated in pure culture to gain access to the wide array of interesting functions they conceal. This is challenging because they do not live in isolation but instead in communities where they actively communicate and interact with ...
Marco A. Lopez Marin+2 more
doaj +1 more source
Quorum Sensing Activity of Mesorhizobium sp. F7 Isolated from Potable Water
We isolated a bacterial isolate (F7) from potable water. The strain was identified as Mesorhizobium sp. by 16S rDNA gene phylogenetic analysis and screened for N-acyl homoserine lactone (AHL) production by an AHL biosensor. The AHL profile of the isolate
Pei-Ling Yong, Kok-Gan Chan
doaj +1 more source
Quorum Sensing Activity of Enterobacter asburiae Isolated from Lettuce Leaves
Bacterial communication or quorum sensing (QS) is achieved via sensing of QS signaling molecules consisting of oligopeptides in Gram-positive bacteria and N-acyl homoserine lactones (AHL) in most Gram-negative bacteria.
Kok-Gan Chan+4 more
doaj +1 more source
SummaryDe novo synthesis of threonine from aspartate occurs via the β‐aspartyl phosphate pathway in plants, bacteria and fungi. However, the Trypanosoma brucei genome encodes only the last two steps in this pathway: homoserine kinase (HSK) and threonine synthase.
Ong, Han B.+4 more
openaire +4 more sources
The Role of Transamination in the Synthesis of Homoserine in Peas [PDF]
Incubation of intact pea plants (Pisum sativum), or detached shoots, in continuous light caused a substantial increase (up to 4-fold in 2 days) in levels of homoserine. Amino acids supplied to leaves in the transpiration stream enhanced the accumulation, with glutamate, aspartate, and asparagine causing similar enhancement.
Kenneth W. Joy, Chander Prabha
openaire +3 more sources
A stable bio‐based nanocomposite coating for urinary catheters is developed using a simple, environmentally‐friendly sonochemical process. The coating, integrating antimicrobial, antibiofilm, and antioxidant properties, effectively tackled multiple early‐stage pathogenic factors associated with catheter‐associated urinary tract infections.
Antonio Puertas‐Segura+7 more
wiley +1 more source
Homoserine dehydrogenase from Thermus thermophilus (TtHSD) is a key enzyme in the aspartate pathway that catalyses the reversible conversion of l-aspartate-β-semialdehyde to l-homoserine (l-Hse) with NAD(P)H. We determined the crystal structures of unliganded TtHSD, TtHSD complexed with l-Hse and NADPH, and Lys99Ala and Lys195Ala mutant TtHSDs, which ...
Shota Akai+5 more
openaire +2 more sources