Results 201 to 210 of about 39,010 (245)

Cryo‐EM structure of GH43 β‐Xylosidase from Enterobacter cloacae provides insights into substrate specificity and the role of an auxiliary domain in enzymatic activity

The FEBS Journal, EarlyView.
Xylan, the second most abundant plant cell wall polysaccharide, is degraded by β‐xylanases and β‐xylosidases. Here, we present the 2.65 Å cryo‐EM structure of Enterobacter cloacae β‐xylosidase (EcXyl43, GH43) and the 2.4 Å X‐ray structure of its inactive F507A mutant.
Lorenzo Briganti, Andre Schutzer Godoy, Caio Cesar Mello Capetti, Rafaela Sachetto Fernandes, Vanessa O. A. Pellegrini, Ornella M. Ontañon, Eleonora Campos, Rodrigo V. Portugal, Igor Polikarpov   +8 more
wiley   +1 more source

Ubiquitin and ubiquitin‐like modifications in the endoplasmic reticulum stress response

The FEBS Journal, EarlyView.
Endoplasmic reticulum (ER) stress activates various proteostasis control processes, including the unfolded protein response, ribosome‐associated quality control, and ER‐associated degradation. Ubiquitin and ubiquitin‐like modifications dynamically regulate these processes to determine cell fate, promoting adaptation or inducing cell death.
Tony Avril, Matthieu Le Gallo, Elodie Lafont   +2 more
wiley   +1 more source

Combating ageing beyond the cell: Emerging roles of extracellular proteostasis

The FEBS Journal, EarlyView.
Ageing challenges the body's ability to maintain a stable and functional proteome, leading to protein damage and aggregation both inside and outside cells. This review focuses on the less well understood mechanisms of extracellular protein quality control and how they become disrupted in ageing, particularly in neurodegenerative diseases.
Siddharth R. Venkatesh, Ivan Gallotta, Bolanle F. Olabiyi, Yoon Hee Choi, Sarah Inglesfield, Janet R. Kumita, Collin Y. Ewald, Della C. David   +7 more
wiley   +1 more source

Conserved dimerization architecture in C‐type lectins from virus‐vector mosquitoes

The FEBS Journal, EarlyView.
C‐type lectins (CTLs) are involved in the detection of viral/microbial carbohydrates. We studied a family of soluble CTLs in the mosquito Aedes aegypti, which acts as a vector for viruses like dengue and Zika. Using crystallography, biophysics, and structure prediction approaches, we found that these proteins consistently pair together in the same ...
Mattia Bertinelli, Rupesh Balaji Jayachandran, Jack Whitehead, Cédric Leyrat, Annabel v. Clanner, Guido C Paesen, Max Renner   +6 more
wiley   +1 more source

Functional and transcriptomic analyses in Neurospora crassa reveal a crucial role for the N‐glycoprotein deglycosylation process in fungal homeostasis

The FEBS Journal, EarlyView.
In Neurospora crassa, a cytosolic GH18 endo‐β‐n‐acetylglucosaminidase (ENGase) functions as an active deglycosylating enzyme. Deletion of this severely alters tolerance to multiple stress conditions and causes extensive transcriptomic reprogramming, including upregulation of a GH20 exo‐β‐n‐acetylhexosaminidase under ER stress, indicating that N. crassa
Anastasios Samaras, Tanim Jabid Hossain, Magnus Karlsson, Georgios Tzelepis   +3 more
wiley   +1 more source

GSK3α‐mediated regulation of the RNA demethylase fat mass and obesity‐associated protein (FTO) during murine spermatogenesis

The FEBS Journal, EarlyView.
FTO regulates mRNA stability and translational efficiency through its m6A‐demethylation activity. GSK3 functions as an upstream regulator of FTO, leading to its inhibition via phosphorylation. In male germ cells, FTO activity is kept in check by GSK3α.
Neha Choudhari, Budheswar Dehury, Rounak Roy, Radhakrishnan Periyasamy, Indrashis Bhattacharya, Mahesh Sahare, Srinivasan Vijayraghavan, Souvik Dey   +7 more
wiley   +1 more source

A Novel Diagnostic Approach for Hepatocellular Carcinoma Using Glycosylated Ferritin

Hepatology Research, EarlyView.
The percentage of glycosylated ferritin relative to total ferritin (%GF) is a novel biomarker for hepatocellular carcinoma (HCC), showing diagnostic performance comparable to that of AFP and DCP. We developed the GFAD index by integrating age, sex, %GF, AFP, and DCP, achieving improved diagnostic accuracy with high sensitivity and specificity. ABSTRACT
Akiyo Ishiguro, Yutaka Suehiro, Issei Saeki, Maho Egusa, Norikazu Tanabe, Toshihiko Matsumoto, Tsuyoshi Ishikawa, Yuki Kunimune, Toshihiko Kobayashi, Mitsuaki Nishioka, Taro Takami, Takahiro Yamasaki   +11 more
wiley   +1 more source

Serum Agalactosyl IgG Predicts Hepatocellular Carcinoma and All‐Cause Mortality After SVR in Advanced Chronic Hepatitis C

Hepatology Research, EarlyView.
ABSTRACT Background and Aims Patients with chronic hepatitis C and advanced fibrosis remain at substantial risk of hepatocellular carcinoma (HCC) and non‐liver–related death even after sustained virological response (SVR) to direct‐acting antivirals (DAA).
Daisuke Sakon, Jumpei Kondo, Yuki Tahata, Hayato Hikita, Maki Iwaisako, Muya Matsumoto, Asuka Ogata, Shinji Takamatsu, Yasutoshi Nozaki, Naruyasu Kakita, Hisashi Ishida, Fumihiko Nakanishi, Yuichi Yoshida, Masanori Nakahara, Kazuho Imanaka, Mitsuru Sakakibara, Takayuki Yakushijin, Tetsuo Takehara, Takahiro Kodama, Eiji Miyoshi   +19 more
wiley   +1 more source

Assessment of Genotoxicity and Cytotoxicity of Tepary Bean (<i>Phaseolus acutifolius</i>) Seed Protein Extract. [PDF]

Life (Basel)
Valadez-Vega C, Ortigoza-Fonseca L, Betanzos-Cabrera G, Velasco-Azorsa R, Muñoz-Pérez VM, Morales-González JA, Velázquez-Morales BP, Bernardino-Nicanor A, González-Cruz L, Estrada-Luna D, Lugo-Magaña O.   +10 more
europepmc   +1 more source

Malaria mosquito antimicrobial defence requires immunity and detoxification gene regulation by Lola

Insect Molecular Biology, EarlyView.
Malaria mosquito antimicrobial defence requires upregulation of lola. Attenuation of lola in the midgut of Anopheles albimanus mosquitoes inhibits the upregulation of immunity genes induced by challenge. Putative target genes of the Lola transcription factor were revealed by lola attenuation, including Cecropin‐C, Draper, PPAF2, Clip‐domain serine ...
Heidi Espadas‐Álvarez, Verónica Valverde‐Garduño   +1 more
wiley   +1 more source