Results 61 to 70 of about 6,469,838 (241)

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

La Traducció genètica mitocondrial i malalties associades [PDF]

open access: yes, 2013
En humans, com en la majoria d'organismes eucariotes, la síntesi proteica té lloc simultàniament al citoplasma i en orgànuls que posseeixen un genoma propi.
Guitart, Tanit   +1 more
core  

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Bioinformàtica [PDF]

open access: yes, 2009
La recerca en biologia no es pot entendre avui sense la computació. A causa, sobretot, del desenvolupament de les tecnologies genòmiques, la biologia ha passat en molt poc temps, de ser una ciència en la qual l'esforç humà s'orientava principalment ...
Guigó Serra, Roderic
core  

A methionine‐lined active site governs carbocation stabilization and product specificity in a bacterial terpene synthase

open access: yesFEBS Letters, EarlyView.
This study reveals a unique active site enriched in methionine residues and demonstrates that these residues play a critical role by stabilizing carbocation intermediates through novel sulfur–cation interactions. Structure‐guided mutagenesis further revealed variants with significantly altered product profiles, enhancing pseudopterosin formation. These
Marion Ringel   +13 more
wiley   +1 more source

Ratolins transgènics poden ajudar a la fecundació in vitro [PDF]

open access: yes, 2007
Els programes de fecundació in vitro utilitzen sovint una hormona que secreta la glàndula pituïtària. Obtenir aquestes hormones resulta molt costós. Investigadors de la UAB estan treballant per tal d'obtenir més eficaçment aquesta hormona utilitzant ...
Ballester Devis, Maria
core   +1 more source

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

El Premi Nobel de Química 2015: els mecanismes de reparació del DNA [PDF]

open access: yes, 2016
La informació genètica es manté durant generacions en un ambient que pot malbaratar la seva integritat. El Premi Nobel de Química 2015 es va concedir als investigadors Tomas Lindahl, Paul Modrich i Aziz Sancar pel seus treballs en el descobriment dels ...
Eritja, Ramon
core  

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

open access: yesFEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz   +11 more
wiley   +1 more source

Linking neurogenesis, oligodendrogenesis, and myelination defects to neurodevelopmental disruption in primary mitochondrial disorders

open access: yesFEBS Letters, EarlyView.
Mitochondrial remodeling shapes neural and glial lineage progression by matching metabolic supply with demand. Elevated OXPHOS supports differentiation and myelin formation, while myelin compaction lowers mitochondrial dependence, revealing mitochondria as key drivers of developmental energy adaptation.
Sahitya Ranjan Biswas   +3 more
wiley   +1 more source

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