Results 151 to 160 of about 95,743 (302)

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

Nuevos registros estatales y nacionales de escarabajos (Coleoptera: Scarabaeoidea) y comentarios sobre su distribución New state and country records of scarab beetles (Coleoptera: Scarabaeoidea) and comments on their distribution

open access: yesRevista Mexicana de Biodiversidad, 2012
Se detallan 49 registros estatales nuevos para 38 especies de Geotrupidae, Hybosoridae, Melolonthidae y Scarabaeidae en Coahuila (1), Colima (3), Chiapas (1), Durango (1), Guerrero (1), Guanajuato (5), Hidalgo (4), Jalisco (1), Michoacán (2), Nayarit (2),
Miguel Ángel Morón, Juan Márquez
doaj  

pH‐Driven Actuation of Unmodified DNA Origami Rectangles

open access: yesAngewandte Chemie, EarlyView.
Unmodified DNA origami rectangles exhibit a reversible transition between planar and tubular states driven by near‐neutral pH changes. This behavior arises from crossover‐mediated mechanical coupling of overwound DNA and extends to dimers and nanoribbons, enabling the formation of nanotube architectures without added motifs or chemical modification ...
Diego A. Uehara   +4 more
wiley   +2 more sources

Dog Waste Creates a Preference-Performance Mismatch for Urban Dung Beetles. [PDF]

open access: yesEcol Evol
McCullough EL   +4 more
europepmc   +1 more source

Community assembly of saproxylic beetles in old-growth forest and recently burnt forest

open access: yes, 2015
Community assembly is the trajectory exhibited over time regarding species composition and community structure as species colonize an empty patch. Chase (2007) distinguish two basic types of assembly where a niche-assembled community is constrained by ...
Sveriges lantbruksuniversitet.   +1 more
core  

Activation of Metal Complexes With Ultrasound Waves for Targeted Anticancer Therapy

open access: yesAngewandte Chemie International Edition, EarlyView.
Ultrasound enables non‐invasive activation of metal‐based therapeutics deep within tumors. Acoustic cavitation can drive sonodynamic reactive oxygen species generation or mechanochemical metal–ligand bond dissociation, enabling controlled release of bioactive payloads.
Félix Grosjean   +3 more
wiley   +1 more source

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