Results 71 to 80 of about 22,784,442 (244)

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Revision of subfamily Mesitiinae (Hymenoptera, Bethylidae) from China

open access: yesEuropean Journal of Taxonomy
The species of Mesitiinae (Bethylidae) from China are revised and 20 species belonging to five genera are recognized. The following eleven new species are described: Heterocoelia curtisulcus sp. nov., H. unicolor sp. nov., H. varicolor sp.
Chunhong Wang, Junhua He, Xuexin Chen
doaj   +1 more source

First record and new combination of a rissoid gastropod from off south Brazil [PDF]

open access: yesBiotemas, 2009
After 35 years of its original description, Rissoa cruzi Castellanos & Fernández, 1974 is first recorded in southern Brazilian waters. An analysis of both shell and radular characteristics indicated that R.
Inga Veitenheimer-Mendes, Fabio Wiggers
doaj  

New York's Connecting to Collections Survey [PDF]

open access: yes, 2009
Acutual questions and results to the statewide survey.Made available in DSpace on 2014-09-24T20:18:24Z (GMT). No. of bitstreams: 2 license.txt: 4923 bytes, checksum: 3568ab34bde24044ec8ea05b1192aa03 (MD5) SurveySummary_Feb27-1.pdf: 151511 bytes, checksum:
Thomas F.R.Clareson, Senior Consultant for New Initiatives at Lyrasis
core  

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

ABL kinase‐dependent phosphorylation of SH proteins promotes their direct interaction with CRK family SH2 domains

open access: yesFEBS Letters, EarlyView.
CT10 regulator of kinase (CRK) and CRK‐Like (CRKL) are signaling adaptors driving cell adhesion, motility, differentiation, and proliferation. SH2‐domain containing (SH) proteins are enriched in YXXP motifs which when phosphorylated create preferred binding sites for CRK family SH2 domains.
Phoebe M. Cousens   +8 more
wiley   +1 more source

On Roeweriella balcanica, a mysterious species of Marpissa from the Balkan Peninsula (Araneae, Salticidae)

open access: yesArachnologische Mitteilungen, 2009
The taxonomic position of the poorly known species Roeweriella balcanica Kratochvíl, 1932 from Croatia is discussed. The species is illustrated and re-described on the basis of the female holotype. The genus Roeweriella Kratochvíl, 1932 (type species: R.
Logunov, Dimitri V.
doaj   +1 more source

Nomenclatural notes on Cruciferae

open access: yesTurczaninowia, 2019
A generic name Dvorakia and combinations Arabidopsis amurensis, A. media, A. multijuga, A. septentrionalis, Dvorakia alaica, D. alyssifolia, Erophila acutidentata, E. aquisgranensis, E. kohlscheidensis, and E. strigosula are validated.
Дмитрий Александрович Герман
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

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