AI Article Synopsis
- State transitions help plants, algae, and cyanobacteria adapt to changes in light quality that affect photosynthesis efficiency.
- The STN7/STT7 kinase in plants and green algae is important for facilitating these state transitions, specifically the transition to state 2.
- Research indicates that while lumenal disulfide linkages aren't likely to be regulated by redox conditions, stromal cysteines form a regulatory disulfide that can be reduced by thioredoxin f1, potentially inhibiting the kinase under high light conditions.
Article Abstract
State transitions are an acclimatory response by which plants, algae, and cyanobacteria counteract photosynthetic inefficiency caused by changes in incident light quality. In plants and green algae, state transition 7 (STN7/STT7) kinase promotes state 2 transition. Conserved cysteine residues are implicated in STN7/STT7 regulation, but the precise nature of their involvement remains unclear. Here, an analysis of the STN7 thiols in vitro and a determination of their midpoint redox potential indicate that the lumenal disulfide linkage is unlikely to be redox regulated while the stromal cysteines form a regulatory intramolecular disulfide. We further show that thioredoxin f1 (Trx-f1) reduces the STN7 stromal disulfide linkage as consistent with a Trx-f1-mediated inhibition of the kinase under high light.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1002/1873-3468.15032 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
ZAG promotes colorectal cancer cell proliferation and epithelial-mesenchymal transition by promoting lipid synthesis.
Open Life Sci
December 2024
Department of Gastroenterology, The Ninth People's Hospital of Chongqing, No. 69, Jialing Village, Beibei District, Chognqing, 400700, China.
Colorectal cancer (CRC) is a common malignant tumor characterized by a high degree of invasiveness, and since zinc-α2 glycoprotein (ZAG) has been implicated in the progression of several malignancies, this study was designed to investigate the role of ZAG in CRC. Its expression was assessed using the GEPIA database, and short hairpin RNA (shRNA) interference was conducted to create ZAG knockdown in CRC cell lines. We also conducted lipid synthesis, cell proliferation, apoptosis, and epithelial-mesenchymal transition (EMT) experiments to elucidate the effects of ZAG expression on CRC, as well as explored the potential underlying mechanistic pathways.
View Article and Find Full Text PDFReverse-engineering the Venus figurines: An eco-life-course hypothesis for the aetiology of obesity in the Palaeolithic.
Evol Med Public Health
November 2024
Department of Obstetrics and Gynaecology, Medical University of Graz, Graz, Austria.
Evolutionary perspectives on obesity have been dominated by genetic frameworks, but plastic responses are also central to its aetiology. While often considered a relatively modern phenomenon, obesity was recorded during the Palaeolithic through small statuettes of the female form (Venus figurines). Even if the phenotype was rare, these statuettes indicate that some women achieved large body sizes during the last glacial maximum, a period of nutritional stress.
View Article and Find Full Text PDFCost-effectiveness of camrelizumab plus rivoceranib for advanced hepatocellular carcinoma in the context of regional disparities in China.
Front Oncol
December 2024
Department of Oncology, Binzhou Medical University Hospital, Binzhou, Shandong, China.
Objective: To assess the cost-effectiveness of combining camrelizumab with rivoceranib versus sorafenib as initial treatment options for advanced hepatocellular carcinoma (HCC) across different developmental regions in China.
Methods: Utilizing TreeAge Pro and data from the phase III randomized CARES-310 clinical trial, a model based on Markov state transitions was developed. Health state utility values were derived from the CARES-310 trial, and direct medical costs were obtained from relevant literature and local pricing data.
Environmental and biomedical applications of 2D transition metal borides (MBenes): recent advancements.
Nanoscale Adv
December 2024
Department of Biomedical Engineering, Faculty of Engineering and Natural Sciences, Istinye University Istanbul 34396 Turkiye
Recently, interest has surged in the environmental and biomedical applications of two-dimensional transition metal borides, commonly referred to as MBenes. These materials have emerged as promising candidates for energy storage devices, such as batteries and supercapacitors. Additionally, MBenes have shown remarkable catalytic activity due to their high surface area and tunable electronic properties.
View Article and Find Full Text PDFInfluence of Water Sorption on Ionic Conductivity in Polyether Electrolytes at Low Hydration.
ACS Macro Lett
December 2024
Department of Chemical Engineering, The University of California, Santa Barbara, Santa Barbara, California 93106, United States.
Ion-containing polymers are subject to a wide range of hydration conditions across electrochemical and water treatment applications. Significant work on dry polymer electrolytes for batteries and highly swollen membranes for water purification has informed our understanding of ion transport under extreme conditions. However, knowledge of intermediate conditions (i.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!