Results 71 to 80 of about 3,349,944 (177)

Expressed protein ligation for a large dimeric protein [PDF]

open access: yes, 2011
Expressed protein ligation (EPL) is a protein engineering tool for post-translational ligation of protein or peptide fragments. This technique allows modification of specific parts of proteins, opening possibilities for incorporating probes for ...
NMR Spectroscopy   +11 more
core   +1 more source

Copper-induced cell death mechanisms and their role in the tumor microenvironment

open access: yesFrontiers in Cell Death
Copper is an essential cofactor for all organisms. However, it can become toxic if its concentration rises above a specific level. This level is controlled by evolutionary conserved homeostatic mechanisms.
Yujuan Jiao   +7 more
doaj   +1 more source

Knockout studies reveal an important role of Plasmodium lipoic acid protein ligase A1 for asexual blood stage parasite survival. [PDF]

open access: yesPLoS ONE, 2009
Lipoic acid (LA) is a dithiol-containing cofactor that is essential for the function of alpha-keto acid dehydrogenase complexes. LA acts as a reversible acyl group acceptor and 'swinging arm' during acyl-coenzyme A formation.
Svenja Günther   +2 more
doaj   +1 more source

Adaptation of White Adipocytes to Cooler Temperatures: Impacts on Energy Metabolism and Protein Acetylation

open access: yesThe FASEB Journal, Volume 40, Issue 15, 15 August 2026.
Cultured white adipocytes exposed to 31°C undergo cell‐autonomous metabolic adaptation characterized by enhanced mitochondrial function and widespread remodeling of the mitochondrial acetylome. Acetyl‐proteomic and metabolomic profiling identified mitochondria‐associated proteins, including SHMT2 and PCCA, whose acetylation changes were linked to ...
Hiroyuki Mori   +11 more
wiley   +1 more source

Pyramidalization of the Glycosidic Nitrogen Provides the Way for Efficient Cleavage of the N‑Glycosidic Bond of 8‑OxoG with the hOGG1 DNA Repair Protein [PDF]

open access: yes, 2012
A mechanistic pathway for cleavage of the N-glycosidic bond of 8-oxo-2′-deoxyguanosine (oxoG) catalyzed with the human 8-oxoguanine glycosylase 1 DNA repair protein (hOGG1) is proposed in this theoretical study. The reaction scheme suggests direct proton
Sychrovský, V.   +5 more
core   +1 more source

Fast & fuelious: the malate–aspartate shuttle in brown adipocyte lipid metabolism

open access: yesThe FEBS Journal, Volume 293, Issue 15, Page 4480-4483, August 2026.
Brown adipose tissue (BAT) produces heat in response to cold exposure, for which it relies on the coordination of aerobic and anaerobic metabolism. However, how reaction intermediates connect these two essential pathways is unclear. In this issue of The FEBS Journal, Veliova et al., report that the malate–aspartate shuttle (MAS) supports norepinephrine‐
Lukas Blaas, Alexander Bartelt
wiley   +1 more source

The Potential Mechanism of Cuproptosis in Hemocytes of the Pacific Oyster Crassostrea gigas upon Elesclomol Treatment

open access: yesCells
Cuproptosis is a novel cell death dependent on mitochondrial respiration and regulated by copper. While the study of it is mainly focused on tumor therapy, in the present study, two key cuproptosis-related genes, ferredoxin (FDX1) and dihydrolipoamide S ...
Yuxin Zhang   +4 more
doaj   +1 more source

Beyond Sequence: Posttranslational Remodeling of Antigens in Autoimmunity

open access: yesImmunological Reviews, Volume 341, Issue 1, August 2026.
ABSTRACT Autoimmune responses are often attributed to failed tolerance to self‐proteins, yet protein expression alone cannot explain why certain antigens dominate disease, why autoreactivity emerges under stress, or why specific HLA alleles shape risk.
Cynthiya Shrestha   +2 more
wiley   +1 more source

Picky Hsp90-Every Game with Another Mate [PDF]

open access: yes, 2017
In this issue of Molecular Cell, Sahasrabudhe et al. (2017) present a dramatically renovated functional cycle for the molecular chaperone Hsp90, which stimulates re-thinking of the mechanism of this vital protein folding ...
Sub Cellular Protein Chemistry   +3 more
core   +2 more sources

Mitochondrial Protein Lipoylation Does Not Exclusively Depend on the mtKAS Pathway of de Novo Fatty Acid Synthesis in Arabidopsis [PDF]

open access: yesPlant Physiology, 2007
Abstract The photorespiratory Arabidopsis (Arabidopsis thaliana) mutant gld1 (now designated mtkas-1) is deficient in glycine decarboxylase (GDC) activity, but the exact nature of the genetic defect was not known. We have identified the mtkas-1 locus as gene At2g04540, which encodes β-ketoacyl-[acyl carrier protein (ACP)] synthase (mtKAS)
Ralph, Ewald   +4 more
openaire   +2 more sources

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