Results 51 to 60 of about 2,966 (173)

Microbiome‐mediated chemical communication in insects: Implications for pest management

open access: yesPest Management Science, Volume 82, Issue 9, Page 8132-8151, September 2026.
Microbiome–semiochemical interactions involve the following processes: direct microbial synthesis, host gene regulation, precursor biotransformation, microbiome modulation and indirect ecological signaling. Abstract Insects rely on semiochemicals to regulate aggregation, mating, foraging, and host selection. This review synthesizes evidence that insect‐
Ioannis Eleftherianos   +6 more
wiley   +1 more source

Research Progress on Fungal Sesterterpenoids Biosynthesis

open access: yesJournal of Fungi, 2022
Sesterterpenes are 25-carbon terpenoids formed by the cyclization of dimethyl allyl diphosphate (DMAPP) and isopentenyl diphosphate (IPP) as structural units by sesterterpenes synthases.
Ping Zhang   +4 more
doaj   +1 more source

Stress‐Induced Switch in Small Extracellular Vesicle Secretion: From Constitutive ‘Torn Bag Mechanism’ to Exocytosis

open access: yesJournal of Extracellular Vesicles, Volume 15, Issue 8, August 2026.
Stress‐induced switch. Under stress conditions, small extracellular vesicle release shifts from the constitutive ‘torn bag mechanism’ to exocytosis of multivesicular endosomes. https://BioRender.com/xn1pa1e. ABSTRACT The biogenesis of small extracellular vesicles (sEVs) is only partially understood.
Dorina Lenzinger   +18 more
wiley   +1 more source

Analogues of geranyl pyrophosphate as inhibitors of prenyltransferase [PDF]

open access: yesBiochemical Journal, 1969
Six analogues of geranyl pyrophosphate (the monophosphates of geraniol and tetrahydrogeraniol, and the pyrophosphates of nerol, octan-1-ol, tetrahydrogeraniol and citronellol) were synthesized, and were found to be inhibitors of pig liver prenyl- (geranyl-)transferase.
G, Popják   +3 more
openaire   +2 more sources

Elucidating the Furanocoumarin Biosynthetic Pathway in Apium graveolens L.: Uncovering the Coordination of Core Enzymes in Both Functional Activity and Gene Localization

open access: yesPlants
Furanocoumarins and their derivatives are found in various plant species and have attracted considerable attention due to their diverse biological activities. By analyzing the genomes of Apium Graveolens L.
Jiali Zhou   +4 more
doaj   +1 more source

Genome mining of cyclodipeptide synthases unravels unusual tRNA-dependent diketopiperazine-terpene biosynthetic machinery

open access: yesNature Communications, 2018
Diketopiperazine derivatives are bioactive molecules with scaffold formed by the condensation of two amino acids. Here, Yao et al. mine the genomes of Streptomyces strains and identify new biosynthetic machinery for drimentines biosynthesis, which ...
Tingting Yao   +9 more
doaj   +1 more source

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, Volume 600, Issue 11, Page 1621-1637, June 2026.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

Evolutionary Relationships of Microbial Aromatic Prenyltransferases

open access: yesPLoS ONE, 2011
The linkage of isoprenoid and aromatic moieties, catalyzed by aromatic prenyltransferases (PTases), leads to an impressive diversity of primary and secondary metabolites, including important pharmaceuticals and toxins. A few years ago, a hydroxynaphthalene PTase, NphB, featuring a novel ten-stranded β-barrel fold was identified in Streptomyces sp ...
Bonitz, T.   +4 more
openaire   +5 more sources

Exosomal miR‐4644 Targets SPRY3 to Promote Proliferation and Invasion of Pancreatic Cancer

open access: yesCancer Medicine, Volume 15, Issue 6, June 2026.
ABSTRACT Background Tumor‐derived exosomes (TDEs) can carry diverse genetic material that modulates pancreatic cancer (PC) proliferation and invasion. Despite this, the involvement of microRNAs (miRNAs) in TDE‐mediated tumor progression in PC remains inadequately explored. Methods Ultracentrifugation was used to isolate exosomes derived from AsPC‐1 and
Xiangyu Chu   +8 more
wiley   +1 more source

A conserved C-terminal RXG motif in the NgBR subunit of cis-prenyltransferase is critical for prenyltransferase activity [PDF]

open access: yesJournal of Biological Chemistry, 2017
cis-Prenyltransferases (cis-PTs) constitute a large family of enzymes conserved during evolution and present in all domains of life. In eukaryotes and archaea, cis-PT is the first enzyme committed to the synthesis of dolichyl phosphate, an obligate lipid carrier in protein glycosylation reactions.
Kariona A. Grabińska   +4 more
openaire   +2 more sources

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