Results 161 to 170 of about 256,837 (255)

Structure and Function of a Multi‐Megadalton Virus‐Like Proteolytic Dodecahedron

open access: yesAngewandte Chemie, EarlyView.
Zuzalysin, a virulence metallopeptidase of the periodontal pathogen Porphyromonas gingivalis, is secreted as a latent, flexible ≈95‐kDa monomer. Calcium triggers cysteine‐switch activation and hierarchical assembly into pentamers, bipentamers, tripentamers, and a ≈5.6‐MDa, ≈355‐Å dodecahedron. Structures at 1.8–3.6 Å reveal a virus‐sized catalytic cage
Mariusz Madej   +20 more
wiley   +2 more sources

Intramolecular Nickel‐Catalyzed Reductive Coupling: Enantioselective Synthesis of Tetrahydroisoquinolines and Related Heterocycles

open access: yesAngewandte Chemie, EarlyView.
The successful extension of the nickel‐catalyzed asymmetric coupling of polarized 1,3‐dienes with aldehydes to an intramolecular setting opens an efficient new entry into hydroxylated N‐heterocyclic compounds, most notably valuable tetrahydroisoquinolines.
Thilo Bender   +3 more
wiley   +2 more sources

l-Talitol. [PDF]

open access: yesIUCrdata
Takashita T   +3 more
europepmc   +1 more source

Atroposelective Pd(0)‐Catalyzed Direct Intermolecular C─H Arylation of Thiazole N‐Oxides Provides Access to Heterobiaryls

open access: yesAngewandte Chemie, EarlyView.
An enantioselective Pd(0)‐catalysed arylation at the C4‐position of thiazole N‐oxides directly forges the atropochiral heterobiaryl axis. A tailored point‐ and axially chiral monodentate phosphine ensures high reactivities along with a tight stereocontrol.
Vitalii Smal, Nicolai Cramer
wiley   +2 more sources

Cervical Radiculopathy Caused by Epidural Venous Varix Associated with a Dural Arteriovenous Fistula in the Anterior Condylar Confluence: A Case Report. [PDF]

open access: yesJ Neuroendovasc Ther
Fukunaga T   +9 more
europepmc   +1 more source

Entdeckung der cyclischen Form des MRT‐pH‐Sensors Z‐OMPD ermöglicht >5% 13C‐Hyperpolarisation durch SABRE

open access: yesAngewandte Chemie, EarlyView.
Mit „c‐OMPD“ entdeckten wir eine bislang unbekannte fünfgliedrige Lactolstruktur, die durch Homoaldolkondensation des zentralen Metaboliten Brenztraubensäure entsteht. Wir zeigen, dass das Cyclisierungsgleichgewicht für die Funktion von OMPD als MRT‐basierte pH‐Sonde von entscheidender Bedeutung ist, und erreichen erstmals eine 13C‐Polarisation von >5 %
Juanita Ferreira   +9 more
wiley   +1 more source

Heritable transgenic schistosomes as a living platform for SARS-CoV-2 neutralizing antibody secretion. [PDF]

open access: yesNat Commun
Ittiprasert W   +25 more
europepmc   +1 more source

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