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Ion channel classification through machine learning and protein language model embeddings

Author(s): Ghazikhani H; Butler G;

Ion channels are critical membrane proteins that regulate ion flux across cellular membranes, influencing numerous biological functions. The resource-intensive nature of traditional wet lab experiments for ion channel identification has led to an increasing emphasis on computational techniques. This study extends our previous work on protein language mode ...

Article GUID: 39572876


Comprehensive Analysis of Age- and Sex-Related Expression of the Chaperone Protein Sigma-1R in the Mouse Brain

Author(s): Tarmoun K; Lachance V; Le Corvec V; BĂ©langer SM; Beaucaire G; Kourrich S;

Sigma-1R (S1R) is a ubiquitously distributed protein highly expressed in the brain and liver. It acts as a ligand-inducible chaperone protein localized at the endoplasmic reticulum. S1R participates in several signaling pathways that oversee diverse cellular and neurological functions, such as calcium and proteome homeostasis, neuronal activity, memory, a ...

Article GUID: 39335377


Show me the evidence to guide nutrition practice: Scoping review of macronutrient dietary treatments after metabolic and bariatric surgery

Author(s): Parrott JM; Benson-Davies S; O' Kane M; Sherf-Dagan S; Ben-Porat T; Arcone VM; Faria SL; Parrott JS;

Background: Clinical practice recommendations for macronutrient intake in Metabolic and Bariatric Surgery (MBS) are insufficiently grounded in the research, possibly due to a paucity of research in key areas necessary to support macronutrient recommendations. An initial scoping r ...

Article GUID: 39262138


Evidence of isochorismate channeling between the Escherichia coli enterobactin biosynthetic enzymes EntC and EntB

Author(s): Bin X; Pawelek PD;

Enterobactin is a high-affinity iron chelator produced and secreted by Escherichia coli and Salmonella typhimurium to scavenge scarce extracellular Fe3+ as a micronutrient. EntC and EntB are the first two enzymes in the enterobactin biosynthetic pathway. Isochorismate, produced by EntC, is a substrate for EntB isochorismatase. By using a competing isochor ...

Article GUID: 39031458


Myelin basic protein mRNA levels affect myelin sheath dimensions, architecture, plasticity, and density of resident glial cells

Author(s): Bagheri H; Friedman H; Hadwen A; Jarweh C; Cooper E; Oprea L; Guerrier C; Khadra A; Collin A; Cohen-Adad J; Young A; Victoriano GM; Swire M; Jarjour A; Bechler ME; Pryce RS; Chaurand P; Cougnaud L; Vuckovic D; Wilion E; Greene O; Nishiya ...

Myelin basic protein (Mbp) is essential for both elaboration and maintenance of CNS myelin, and its reduced accumulation results in hypomyelination. How different Mbp mRNA levels affect myelin dimensions across the lifespan and how resident glial cells may respond to such changes are unknown. Her ...

Article GUID: 39023138


Enhanced binding of guanylated poly(A) RNA by the LaM domain of LARP1

Author(s): Kozlov G; Jiang J; Rutherford T; Noronha AM; Wilds CJ; Gehring K;

La-related proteins (LARPs) are a family of RNA-binding proteins that share a conserved La motif (LaM) domain. LARP1 plays a role in regulating ribosomal protein synthesis and stabilizing mRNAs and has a unique structure without an RNA binding RRM domain adjoining the LaM domain. In this study, we investigated the physical basis for LARP1 specificity for ...

Article GUID: 39016322


Thermotolerance in S. cerevisiae as a model to study extracellular vesicle biology

Author(s): Logan CJ; Staton CC; Oliver JT; Bouffard J; Kazmirchuk TDD; Magi M; Brett CL;

The budding yeast Saccharomyces cerevisiae is a proven model organism for elucidating conserved eukaryotic biology, but to date its extracellular vesicle (EV) biology is understudied. Here, we show yeast transmit information through the extracellular medium that increases survival when confronted with heat stress and demonstrate the EV-enriched samples me ...

Article GUID: 38711329


Exploiting protein language models for the precise classification of ion channels and ion transporters

Author(s): Ghazikhani H; Butler G;

This study introduces TooT-PLM-ionCT, a comprehensive framework that consolidates three distinct systems, each meticulously tailored for one of the following tasks: distinguishing ion channels (ICs) from membrane proteins (MPs), segregating ion transporters (ITs) from MPs, and differentiating ICs from ITs. Drawing upon the strengths of six Protein Languag ...

Article GUID: 38656743


What is Learned Determines How Pavlovian Conditioned Fear is Consolidated in the Brain

Author(s): Leake J; Leidl DM; Lay BPP; Fam JP; Giles MC; Qureshi OA; Westbrook RF; Holmes NM;

Activity in the basolateral amygdala complex (BLA) is needed to encode fears acquired through contact with both innate sources of danger (i.e., things that are painful) and learned sources of danger (e.g., being threatened with a gun). However, within the BLA, the molecular processes required to consolidate the two types of fear are not the same: protein ...

Article GUID: 37963767


The caleosin RD20/CLO3 regulates lateral root development in response to abscisic acid and regulates flowering time in conjunction with the caleosin CLO7

Author(s): Brunetti SC; Arseneault MKM; Gulick PJ;

The caleosins are encoded by multi-gene families in Arabidopsis thaliana and other plant species. This work investigates the role of two family members, RD20/CLO3 and CLO7, in flowering transition and in root development in response to ABA treatment. Gene expression of the caleosin RD20/CLO3 is induced by ABA in the root tissues and RD20/CLO3 has a negati ...

Article GUID: 37812854


Measuring prion propagation in single bacteria elucidates a mechanism of loss

Author(s): Jager K; Orozco-Hidalgo MT; Springstein BL; Joly-Smith E; Papazotos F; McDonough E; Fleming E; McCallum G; Yuan AH; Hilfinger A; Hochschild A; Potvin-Trottier L;

Prions are self-propagating protein aggregates formed by specific proteins that can adopt alternative folds. Prions were discovered as the cause of the fatal transmissible spongiform encephalopathies in mammals, but prions can also constitute nontoxic protein-based elements of inheritance in fung ...

Article GUID: 37738299


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