Results 151 to 160 of about 1,162,426 (279)

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Les pratiques de terrain en situation de tensions sociales et de guerre civile au Congo-Brazzaville

open access: yesSociologies, 2011
Referring to my own field practices in a situation of social tension and civil war in Congo-Brazzaville entails a genuine critical examination of a society which is at the same time a social world made up of a plurality of social microcosms and the field
Abel Kouvouama
doaj  

β‐TrCP overexpression enhances cisplatin sensitivity by depleting BRCA1

open access: yesMolecular Oncology, EarlyView.
Low levels of β‐TrCP (Panel A) allow the accumulation of BRCA1 and CtIP, which facilitate the repair of cisplatin‐induced DNA damage via homologous recombination (HR) and promote tumor cell survival. In contrast, high β‐TrCP expression (Panel B) leads to BRCA1 and CtIP degradation, impairing HR repair, resulting in persistent DNA damage and apoptosis ...
Rocío Jiménez‐Guerrero   +8 more
wiley   +1 more source

Focused Ethnography: A Methodological Adaptation for Social Research in Emerging Contexts

open access: yesForum: Qualitative Social Research, 2014
Ethnography is one of the oldest qualitative methods, yet increasingly, researchers from various disciplines are using and adapting ethnography beyond its original intents.
Sarah Stahlke Wall
doaj  

Nicotinamide N‐methyltransferase promotes drug resistance in lung cancer, as revealed by nascent proteomic profiling

open access: yesMolecular Oncology, EarlyView.
AZD9291 has shown promise in targeted cancer therapy but is limited by resistance. In this study, we employed metabolic labeling and LC–MS/MS to profile time‐resolved nascent protein perturbations, allowing dynamic tracking of drug‐responsive proteins. We demonstrated that increased NNMT expression is associated with drug resistance, highlighting NNMT ...
Zhanwu Hou   +5 more
wiley   +1 more source

Experimental Archaeology as Participant Observation: A Perspective from Medieval Food

open access: yesEXARC Journal, 2017
Central to anthropology is the concept of participant observation, where a researcher engages in immersive learning through ethnographic fieldwork. This concept is also important for archaeologists as immersive learning provides an avenue for more robust
Scott D. Stull
doaj  

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