Glucose is metabolized through central metabolic pathways such as glycolysis and the pentose phosphate pathway (PPP) to synthesize downstream metabolites including amino acids. However, how the split ratio of carbon flux between glycolysis and PPP specifically affects the formation of downstream metabolites remains largely unclear. Here, we conducted a comprehensive metabolomic analysis to investigate the effect of the split ratio between glycolysis and the PPP on the intracellular concentration of amino acids and their derivatives in . The split ratio was varied by exchanging the promoter of a gene encoding glucose 6-phosphate isomerase (PGI). The ratio was correlated with the transcription level and the enzyme activity. Concentrations of threonine and lysine-derivative 1,5-diaminopentane increased with an increase of the split ratio into the PPP. In contrast, concentrations of alanine, leucine, and valine were increased with an increase of the split ratio into glycolysis. These results could provide a new engineering target for improving the production of the amino acids and the derivatives.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acssynbio.0c00181 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Balloon-assisted placement of rib graft in endoscopic posterior cricoid split; a new technique.
Eur Arch Otorhinolaryngol
January 2025
Department of Otolaryngology-Head and Neck Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia.
Objective: This study aims to compare the outcomes of balloon-assisted rib graft placement with traditional graft placement in Endoscopic Posterior Cricoid Split with Rib Graft Placement (EPCS/RG).
Methods: We conducted a retrospective analysis of 23 patients who underwent EPCS/RG by a single senior surgeon at King Saud University Medical City from 2017 to 2024. Data were collected on demographics, surgical approach, and operative time.
Evaluating sex and line differences in successive negative contrast and ethanol consumption using alcohol preferring and high alcohol drinking rats.
Alcohol Clin Exp Res (Hoboken)
January 2025
Addiction Neuroscience, Department of Psychology and Indiana Alcohol Research Center, Indiana University Indianapolis, Indianapolis, Indiana, USA.
Background: The loss of a job or relationship are a couple of examples of unexpected reward loss. Life events, such as these can induce negative emotional reactions (e.g.
View Article and Find Full Text PDF«Green-Ligand» in Metallodrugs Design-Cu(II) Complex with Phytic Acid: Synthetic Approach, EPR-Spectroscopy, and Antimycobacterial Activity.
Molecules
January 2025
N. S. Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninsky Prosp. 31, 119991 Moscow, Russia.
The interaction of sodium phytate hydrate CHOP·xNa·yHO (phytNa) with Cu(OAc)·HO and 1,10-phenanthroline (phen) led to the anionic tetranuclear complex [Cu(HO)(phen)(phyt)]·2Na·2NH·32HO (), the structure of the latter was determined by X-ray diffraction analysis. The phytate is completely deprotonated; six phosphate fragments (with atoms P1-P6) are characterized by different spatial arrangements relative to the cyclohexane ring (1a5e conformation), which determines two different types of coordination to the complexing agents-P1 and P3, P4, and P6 have monodentate, while P2 and P5 are bidentately bound to Cu cations. The molecular structure of the anion complex is stabilized by a set of strong intramolecular hydrogen bonds involving coordinated water molecules.
View Article and Find Full Text PDFRelationship Between the Use of Fitness Trackers and Smartwatches for Monitoring Physical Activity and the Sociodemographic Characteristics of Long-Term Care Residents During the COVID-19 Lockdown.
Medicina (Kaunas)
December 2024
Clinic for Traumatology, Clinical Hospital Center Sestre Milosrdnice, 10 000 Zagreb, Croatia.
: The use of wearable fitness technology is a trend nowadays and has significant potential in promoting an active lifestyle among long-term care (LTC) residents. The objectives of this observational study were to examine the use of fitness trackers and smartwatches for monitoring physical activity and to analyze the relationship between the use of these technological solutions and the sociodemographic characteristics of LTC residents during the COVID-19 lockdown. : Face-to-face interviews were conducted with 198 LTC residents stationed in eleven organizational units that provide long-term accommodation services for older adults in the city of Zagreb in Croatia.
View Article and Find Full Text PDFThe role of non-respiratory arousals in residual daytime sleepiness in patients with obstructive sleep apnea treated with positive airway pressure: An analysis of the European Sleep Apnea Database registry.
Sleep Med
January 2025
Department of Pulmonology, Louvain University Center for Sleep and Wake Disorders (LUCS), University Hospitals Leuven Campus Gasthuisberg, Leuven, Belgium.
Study Objectives: To assess the impact of the non-respiratory arousal burden at baseline polysomnography (PSG) on residual daytime sleepiness in positive airway pressure (PAP)-treated obstructive sleep apnea (OSA).
Methods: We included OSA patients from the European Sleep Apnea Database registry with available arousal data who had at least 2 treatment follow-up visits. The primary outcome was the Epworth Sleepiness Scale (ESS) score under PAP.
Want 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!