Results 201 to 210 of about 51,687 (291)

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

Protein rheostasis: quality control in metastable proteomes. [PDF]

Philos Trans R Soc Lond B Biol Sci
Vendruscolo M.
europepmc   +1 more source

Tankyrase‐2 regulates adipocyte differentiation through AMPK/mTOR signaling

The FEBS Journal, EarlyView.
Tankyrase 2 (TNKS2), a PARP family member, underpins adipocyte differentiation. TNKS2 controls LKB1 protein level, and consequently, the activity of the mTOR/AMPK system and adipocyte differentiation through a layered process. Pharmacological inhibition of TNKS2 leaves other PARPs and DNA repair active and therefore represents a novel target in ...
Boglarka Rauch, Gyula Ujlaki, Szilard Poliska, Nakayi Murahwa, Patrik Kovacs, Aladar Pettko‐Szandtner, Karen Uray, Peter Bai   +7 more
wiley   +1 more source

Protein stereo-folding and proteostasis: A new path for clinical and translational medicine. [PDF]

Clin Transl Med
Wang Y, Qiu Y, Wang X.
europepmc   +1 more source

Structures of the UBR4 complex reveal a giant arena to capture diverse substrates for ubiquitin chain elongation

The FEBS Journal, EarlyView.
This review summarizes recent structures of the UBR4 complex, a giant E4 ubiquitin ligase which recognizes proteins with pre‐existing ubiquitin modifications and marks them for degradation. The UBR4 complex uses a large arena lined with substrate interaction modules to select features on ubiquitinated substrates, such as the presence of N‐degrons or ...
Daniel B. Grabarczyk, Tim Clausen
wiley   +1 more source

Impaired Activity-Regulated Proteostasis: A Shared Mechanism in Neurodevelopmental Disorders. [PDF]

Biol Psychiatry
Pandey K.
europepmc   +1 more source

Newly identified human aminoacyl‐tRNA synthetase complex interacting multifunctional protein 2 (AIMP2) loss‐of‐function mutations cause neurodevelopmental defects linked to cell death in a zebrafish model

The FEBS Journal, EarlyView.
Human AIMP2 mutations lead to severe neurodevelopmental defects and brain atrophy. Using patient‐derived fibroblasts from two individuals, we show decreased AIMP2 protein levels and overall protein synthesis. In a zebrafish loss‐of‐function model, the lack of AIMP2 leads to an increase in cell death and results in smaller brains.
Patrick Mullen, Shenela Lakhani, Joshua Appelbaum, DéJenaé See, Pryce Patterson, Collin M. MacLeod, Alexandra George, Reza Maroofian, Margaret E. Ross, Christopher Francklyn, Alicia M. Ebert   +10 more
wiley   +1 more source

Selective autophagy pathways in ageing and neurodegeneration: Emerging roles for mitophagy and nucleophagy

The FEBS Journal, EarlyView.
As we age, cells gradually accumulate damage, which can contribute to disease and neurodegeneration. This review explores how two cellular recycling processes, mitophagy and nucleophagy, remove damaged mitochondria and nuclear material, respectively, to maintain cell health and long‐term neuronal homeostasis.
Maria Markaki, Nektarios Tavernarakis
wiley   +1 more source

From productive coupling to catalytic commitment: An evolutionarily tuned interdomain connector in Leishmania Aha1 orchestrates Hsp90 activation

The FEBS Journal, EarlyView.
LbAha1 activates LbHsp90 through a multistep mechanism in which productive N‐domain docking precedes ATP‐driven rearrangement and linker ordering. The LbAha1 linker transitions from a flexible to helical state, stabilizing an asymmetric, catalytically competent closed complex.
Paulo Roberto Dores‐Silva, Thiago Vargas Seraphim, Karine Minari, Izabella Rodrigues Fonseca da Silva, Winston Pinheiro Claro Gomes, Leijiane Figueira de Sousa, Arthur Moraes Franco da Rocha, Leandro Ramos Souza Barbosa, Jeremiah Stanson Joseph, Júlio César Borges   +9 more
wiley   +1 more source