The effect of the deletion of a 57 bp native signal sequence, which transports the nascent protein through the endoplasmic reticulum membrane in plants, on improved TGG1 plant myrosinase production in was studied. Myrosinase was extracellularly produced in a 3-liter laboratory fermenter using α-mating factor as the secretion signal. After the deletion of the native signal sequence, both the specific productivity (164.8 U/L/h) and volumetric activity (27 U/mL) increased more than 40-fold compared to the expression of myrosinase containing its native signal sequence in combination with α-mating factor. The deletion of the native signal sequence resulted in slight changes in myrosinase properties: the optimum pH shifted from 6.5 to 7.0 and the maximal activating concentration of ascorbic acid increased from 1 mM to 1.5 mM. Kinetic parameters toward sinigrin were determined: 0.249 mM (K) and 435.7 U/mg (V). These results could be applied to the expression of other plant enzymes.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8585081 | PMC |
| http://dx.doi.org/10.3390/ijms222111889 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Extrusion-Based Printing of Myoblast-Loaded Fibrin Microthreads to Induce Myogenesis.
J Funct Biomater
January 2025
Department of Biomedical Engineering, Worcester Polytechnic Institute, Worcester, MA 01609, USA.
Large skeletal muscle injuries such as volumetric muscle loss (VML) disrupt native tissue structures, including biophysical and biochemical signaling cues that promote the regeneration of functional skeletal muscle. Various biofabrication strategies have been developed to create engineered skeletal muscle constructs that mimic native matrix and cellular microenvironments to enhance muscle regeneration; however, there remains a need to create scalable engineered tissues that provide mechanical stability as well as structural and spatiotemporal signaling cues to promote cell-mediated regeneration of contractile skeletal muscle. We describe a novel strategy for bioprinting multifunctional myoblast-loaded fibrin microthreads (myothreads) that recapitulate the cellular microniches to drive myogenesis and aligned myotube formation.
View Article and Find Full Text PDFUnlocking the mechanistic potential of for managing diabetic neuropathy and nephropathy.
J Tradit Complement Med
November 2024
Chitkara College of Pharmacy, Chitkara University, Rajpura, 140401, Punjab, India.
Diabetes mellitus and its debilitating microvascular complications, including diabetic neuropathy and nephropathy, represent a growing global health burden. Despite advances in conventional therapies, their suboptimal efficacy and adverse effects necessitate exploring complementary and alternative medicine approaches. , a coniferous tree species native to eastern North America, has gained significant attention for its potential therapeutic applications in various disorders, attributed to its rich phytochemical composition.
View Article and Find Full Text PDFEngineering a high-throughput clone for industrial-scale production of long-acting GLP-1 analogue with retained bio-efficacy.
Biotechnol Prog
January 2025
Department of Biotechnology, School of Bioengineering, SRM Institute of Science and Technology, Kattankulathur, Tamil Nadu, India.
Type 2 diabetes mellitus (T2DM) and obesity are critical global health issues with rising incidence rates. Glucagon-like peptide-1 (GLP-1) analogues have emerged as effective treatments due to their ability to regulate blood glucose levels and gastric emptying through central nervous signals involving hypothalamic receptors, such as leptin. To address the short plasma half-life of native GLP-1, a C-16 fatty acid was conjugated to lysine in the GLP-1 analogue sequence to enhance its longevity.
View Article and Find Full Text PDF3D bio-printed proteinaceous bioactive scaffold loaded with dual growth factor enhanced chondrogenesis and in situ cartilage regeneration.
Bioact Mater
April 2025
Department of Regenerative Medicine, College of Medicine, Soonchunhyang University, Cheonan, Republic of Korea.
Articular cartilage has a limited self-healing capacity, leading to joint degeneration and osteoarthritis over time. Therefore, bioactive scaffolds are gaining attention as a promising approach to regenerating and repairing damaged articular cartilage through tissue engineering. In this study, we reported on a novel 3D bio-printed proteinaceous bioactive scaffolds combined with natural porcine cancellous bone dECM, tempo-oxidized cellulose nanofiber (TOCN), and alginate carriers for TGF-β1, FGF-18, and ADSCs to repair cartilage defects.
View Article and Find Full Text PDFResolving native GABA receptor structures from the human brain.
Nature
January 2025
Department of Neurobiology, University of California San Diego, La Jolla, CA, USA.
Type A GABA (γ-aminobutyric acid) receptors (GABA receptors) mediate most fast inhibitory signalling in the brain and are targets for drugs that treat epilepsy, anxiety, depression and insomnia and for anaesthetics. These receptors comprise a complex array of 19 related subunits, which form pentameric ligand-gated ion channels. The composition and structure of native GABA receptors in the human brain have been inferred from subunit localization in tissue, functional measurements and structural analysis from recombinant expression and in mice.
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!