Results 81 to 90 of about 5,512,789 (304)

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Higher Rates of Viral Evolution in Chronic Hepatitis B Patients Linked to Predicted T Cell Epitopes

open access: yesViruses
The impact of hepatitis B virus (HBV) diversity and evolution on disease progression is not well-understood. This study aims to compare intra-individual viral evolution in two groups of chronic hepatitis B (CHB) patients, using antiviral treatment ...
Magnus Illum Dalegaard   +7 more
doaj   +1 more source

Somatic mutations substantially increase the per‐generation mutation rate in the conifer Picea sitchensis

open access: yesEvolution Letters, 2019
The rates and biological significance of somatic mutations have long been a subject of debate. Somatic mutations in plants are expected to accumulate with vegetative growth and time, yet rates of somatic mutations are unknown for conifers, which can ...
Vincent C. T. Hanlon   +2 more
doaj   +1 more source

MUTATOR GENES AND SELECTION FOR THE MUTATION RATE IN BACTERIA [PDF]

open access: yesGenetics, 1975
ABSTRACT Gene frequencies in populations of haploid, asexual organisms are described by linear recurrence equations. Several models in which the mutation rate is controlled by one locus and the fitness is controlled at one or more other loci are developed.
openaire   +2 more sources

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

The hierarchical island model revisited

open access: yesGenetics Selection Evolution, 2000
Formulae were derived for the genetic differentiation between populations within a metapopulation (FSM), and between metapopulations (FMT) as functions of migration and mutation rates, size and number of populations and metapopulations. We show that FMT =
Couvet Denis, Vigouroux Yves
doaj   +1 more source

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Transposon insertion sequencing reveals novel hypermutator genes in Acinetobacter baumannii

open access: yesmBio
Mutation rates in bacteria are an important determinant of adaptation to new environments and success in different niches. In some bacterial pathogens, “hypermutator” variants—most often associated with mutations in components of the DNA mismatch repair ...
Francesca L. Short   +8 more
doaj   +1 more source

Pediatric Mediastinal Gray Zone Lymphoma With Germline TET2 Heterozygous Variant

open access: yes
Pediatric Blood &Cancer, EarlyView.
Matthew R. Schuelke   +9 more
wiley   +1 more source

Rab14 regulates the transport of human papillomavirus to the trans‐Golgi network for infectious cell entry

open access: yesFEBS Letters, EarlyView.
This study reveals that the small GTPase Rab14 is necessary for human papillomavirus (HPV) infection and plays an essential role in the transport of virions to the trans‐Golgi network (TGN). HPV in the early endosome (EE), which harbors GTP‐bound Rab14, is transported to the TGN through the switch of Rab14 from its GTP‐bound to GDP‐bound form.
Yoshiyuki Ishii, Iwao Kukimoto
wiley   +1 more source

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