G
Géraldine Adryanczyk
Researcher at Aix-Marseille University
Publications - 6
Citations - 242
Géraldine Adryanczyk is an academic researcher from Aix-Marseille University. The author has contributed to research in topics: Magnetosome & Magnetospirillum. The author has an hindex of 5, co-authored 6 publications receiving 203 citations. Previous affiliations of Géraldine Adryanczyk include Centre national de la recherche scientifique.
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Journal ArticleDOI
Single-step production of a recyclable nanobiocatalyst for organophosphate pesticides biodegradation using functionalized bacterial magnetosomes.
Nicolas Ginet,Nicolas Ginet,Romain Pardoux,Romain Pardoux,Géraldine Adryanczyk,Géraldine Adryanczyk,Daniel Garcia,Daniel Garcia,Catherine Brutesco,Catherine Brutesco,David Pignol,David Pignol +11 more
TL;DR: The easy production of functionalized magnetic nanoparticles with suitably genetically modified magnetotactic bacteria that are efficient as a reusable nanobiocatalyst for pesticides bioremediation in contaminated effluents is demonstrated.
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Magnetochrome: a c-type cytochrome domain specific to magnetotatic bacteria
TL;DR: The presence of three membrane-associated or periplasmic proteins containing a double cytochrome c signature motif CXXCH: MamE, MamP and MamT suggests the existence of an electron-transport chain inside the magnetosome, contributing to the process of biocrystallization.
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Detrimental effect of the 6 His C-terminal tag on YedY enzymatic activity and influence of the TAT signal sequence on YedY synthesis
Monique Sabaty,Monique Sabaty,Sandrine Grosse,Sandrine Grosse,Géraldine Adryanczyk,Géraldine Adryanczyk,Séverine Boiry,Séverine Boiry,Frédéric Biaso,Pascal Arnoux,Pascal Arnoux,David Pignol,David Pignol +12 more
TL;DR: This study underscores the risk of using a C-terminus tagged enzyme while studying YedY, and presents an alternative strategy to express signal sequence-containing enzymes with an N-terminal tag, bringing new insights into molybdoenzyme maturation in R. sphaeroides.
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Ectosymbiotic bacteria at the origin of magnetoreception in a marine protist
Caroline L. Monteil,David Vallenet,Nicolas Menguy,Karim Benzerara,Valérie Barbe,Stéphanie Fouteau,Corinne Cruaud,Magali Floriani,Eric Viollier,Géraldine Adryanczyk,Nathalie Leonhardt,Damien Faivre,Damien Faivre,David Pignol,Purificación López-García,Richard J. Weld,Christopher T. Lefèvre +16 more
TL;DR: A mutualistic symbiosis between a non-motile, magnetic deltaproteobacterium and a protist, resulting in eukaryotic magnetoreception in marine anoxic sediments is identified, suggesting a historical acquisition of magnetoreceptions by a euglenozoan ancestor from Deltaproteobacteria followed by subsequent diversification.
Journal ArticleDOI
Coproporphyrin Excretion and Low Thiol Levels Caused by Point Mutation in the Rhodobacter sphaeroides S-Adenosylmethionine Synthetase Gene
Monique Sabaty,Monique Sabaty,Géraldine Adryanczyk,Géraldine Adryanczyk,Chloë Roustan,Chloë Roustan,Stéphan Cuiné,Stéphan Cuiné,Christine Lamouroux,David Pignol,David Pignol +10 more
TL;DR: A model showing that the attenuation of the activities of SAM-dependent enzymes in the mutant could be responsible for the coproporphyrin excretion, the low cysteine and glutathione contents, and the decrease in DMSO and nitrate reductase activities is proposed.