A major problem for structural characterization of membrane proteins, such as connexins, by nuclear magnetic resonance (NMR) occurs at the initial step of the process, the production of sufficient amounts of protein. This occurs because proteins must be expressed in minimal based media. Here, we describe an expression system for membrane proteins that significantly improves yield by addressing two common problems, cell toxicity caused by protein translation and codon bias between genomes. This work provides researchers with a cost-effective tool for NMR and other biophysical studies, to use when faced with little-to-no expression of eukaryotic membrane proteins in Escherichia coli expression systems.
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http://dx.doi.org/10.3389/fphar.2013.00106 | DOI Listing |
Vet Res
January 2025
Department of Fundamental Veterinary Medicine, College of Veterinary Medicine, Shandong Agricultural University, 61 Daizong Street, Tai'an, 271018, Shandong, China.
Porcine reproductive and respiratory syndrome virus (PRRSV) is one of the most harmful pathogens in the swine industry. Our previous studies demonstrated that the small extracellular domain (ECL2) of CLDN4 effectively blocks PRRSV infection. In this study, we explored the in vivo administration of swine ECL2 (sECL2) and found that it blocked HP-PRRSV infection and alleviated histopathological changes in organs.
View Article and Find Full Text PDFBMC Cancer
January 2025
Department of Pediatric Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China.
Background: Neuroblastoma, a prevalent extracranial solid tumor in pediatric patients, demonstrates significant clinical heterogeneity, ranging from spontaneous regression to aggressive metastatic disease. Despite advances in treatment, high-risk neuroblastoma remains associated with poor survival. SLC1A5, a key glutamine transporter, plays a dual role in promoting tumor growth and immune modulation.
View Article and Find Full Text PDFBMC Cardiovasc Disord
January 2025
The second Affiliated Hospital of Xi'an Jiaotong University, Xinjiang Hospital (People's Hospital of Xinjiang Uygur Autonomous Region, Bainiaohu Hospital), Urumqi, Xinjiang, 830026, People's Republic of China.
Background: Several studies showed higher risks of cardiovascular complications to have been observed in patients with type 2 diabetes mellitus (T2DM). Atrial fibrillation (AF) and atrial flutter have been more pronounced in patients with hyperglycemia. Sodium-glucose co-transporter 2 (SGLT2) inhibitors are now considered as second-line treatment for patients with T2DM following inadequate glycemic control with first line agents.
View Article and Find Full Text PDFFunct Integr Genomics
January 2025
Department of Cardiology, Guizhou Provincial People`s Hospital, 83 Zhongshan East Road, Guiyang City, 550002, Guizhou Province, China.
Metabolic reprogramming, the shifting from fatty acid oxidation to glucose utilization, improves cardiac function as heart failure (HF) progresses. Leptin plays an essential role in regulating glucose metabolism. However, the crosstalk between leptin and metabolic reprogramming is poorly understood.
View Article and Find Full Text PDFJ Gastrointest Cancer
January 2025
Department of Clinical Laboratory, Shandong Provincial Third Hospital, Shandong University, Jinan, Shandong, China.
Purpose: Liquid biopsy technology has received widespread attention in the early diagnosis of cholangiocarcinoma (CCA).
Methods: We collected bile samples from 48 patients with CCA and 48 patients with gallstones at Shandong Provincial third Hospital. We quantified bile circulating free DNA (cfDNA) of syncytin-1 and SLC7A11, calculated the correlation between syncytin-1 and SLC7A11 expression and clinical parameters by Spearman rank correlation, plotted Receiver Operating Characteristic (ROC) curves, and compared the Area Under Curve (AUC) values to explored early diagnostic utility in patients.
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