Results 181 to 190 of about 4,447,356 (307)

Noncanonical Peloruside A Biosynthesis by an Uncultivated Verrucomicrobiota Symbiont

open access: yesAngewandte Chemie, EarlyView.
Noncanonical biochemistry of the peloruside PKS characterized in this work, comprising double bond generation by a noncanonical tridomain (blue), acetyl‐CoA recycling (orange), and proofreading systems (purple and yellow). The Z‐double bond is installed by TEB1 through O‐acetylation and acetate elimination. The acyl ligase PelB (AL, orange) selectively
Amy E. Fraley   +11 more
wiley   +2 more sources

A well‐resolved phylogeny of Cuscuta subgenus Monogynella based on data drawn from all three plant genomes

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Cuscuta (dodders) consists of ~200 species circumscribed into four subgenera (Monogynella, Cuscuta, Pachystigma, and Grammica) and is the only parasitic genus in Convolvulaceae (the morning‐glory family). This group shows a significant diversity in plastid functionality and represents a rare mixotrophic system among parasitic plants ...
Asawari Albal, Saša Stefanović
wiley   +1 more source

A tribal‐scale phylogenomic perspective on ancestry and major lineages of the allotetraploid Hawaiian silversword alliance (Madieae, Compositae)

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Disentangling the ancestry of insular plant lineages is important for resolving their evolutionary histories but often complicated by polyploidy, an overrepresented condition in remote island floras. We used a phylogenomic approach to study the origin of subgenomes of the tetraploid Hawaiian silversword alliance and advance ...
Bruce G. Baldwin   +4 more
wiley   +1 more source

Intermolecular Carbon–Carbon Naphthalene Coupling Involves a Radical Mechanism Driven by Cytochrome P450 in Alternaria alternata

open access: yesAngewandte Chemie, EarlyView.
1,8‐DHN is an important intermediate to form complex aromatic ring systems. Phenol‐coupling reactions are important for the dimerization of two molecules. Here, we show that a fungal cytochrome P450 enzyme catalyzes specific C─C bonds. ABSTRACT Dihydroxynaphthalene (DHN) derivatives are precursors of biologically important molecules, including melanin ...
Jia Gao   +8 more
wiley   +2 more sources

A mid‐Cretaceous monocot flower from the Dakota Sandstone of Kansas and its potential implications for the fossil record of palms

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Although the megafossil flora of the upper Albian–lower Cenomanian Dakota Formation in Kansas is well known for angiosperms, monocots have not been reported previously. Methods A mesofossil flower was discovered by X‐ray analysis of a specimen collected more than a century ago from the Dakota Sandstone of central Kansas.
Bruce H. Tiffney   +4 more
wiley   +1 more source

An IscS Persulfide Donates the Sulfur for Ribosomal Protein uL16 Thioamidation

open access: yesAngewandte Chemie, EarlyView.
YcaO‐catalyzed thioamidation of the ribosomal subunit protein uL16 is widespread in Pseudomonadota bacteria. We identify the iron–sulfur cluster cysteine desulfurase IscS as the sulfur donor via an IscS persulfide and observe direct IscS–uL16 interactions.
Yanqing Xue   +2 more
wiley   +2 more sources

Structural characteristics of the Phoebe hui chloroplast genome and phylogenetic analyses of Phoebe plants. [PDF]

open access: yesBMC Genomics
Zhang L   +12 more
europepmc   +1 more source

Distinct Consequences of BCOR and BCORL1 Mutations in Myeloid Neoplasms and Bone Marrow Failure

open access: yesAmerican Journal of Hematology, EarlyView.
ABSTRACT BCOR and BCORL1 (BCOR/L1) mutations are observed in both myeloid neoplasms (MN) and bone marrow failure syndromes (BMF), but their clinical significance may differ. We analyzed 11 340 patients and identified 418 BCOR/L1‐mutated patients, focusing on differences between MN and BMF. Compared with MN, BMF was associated with younger age, a higher
Atsushi Marumo   +23 more
wiley   +1 more source

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