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Intrasporangium zincisolvens sp. nov., A Novel Actinobacterium Isolated from Rhizosphere Soil.
Curr Microbiol
January 2025
Institute of Agricultural Environmental Resources, Yunnan Academy of Agricultural Sciences, Kunming, 650205, People's Republic of China.
A novel phosphate-solubilizing and zinc-solubilizing actinobacterium strain YIM S08009 was isolated from rhizosphere soil collected from Pinus yunnanensis in Wuliangshan National Nature Reserve, Pu'er City, Yunnan Province, southwest PR China. Cells of strain YIM S08009 were Gram-stain-positive, non-motile, irregular rods to cocci, and formed yellow and white colonies on nutrient agar. Growth was observed at 10-40 °C (optimum 25-35 °C), pH 6.
View Article and Find Full Text PDFThyroid Carcinoma Glycoproteins Express Altered -Glycans with 3-O-Sulfated Galactose Residues.
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November 2024
Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USA.
Aberrant protein glycosylation is a hallmark alteration of cancer and is highly associated with cancer progression. Papillary thyroid cancer (PTC) is the most common type of thyroid cancer, but the -glycosylation of its glycoproteins has not been well characterized. In this work, we analyzed multiple freshly prepared PTC specimens along with paired normal tissue obtained from thyroidectomies.
View Article and Find Full Text PDFTunable Terpolymer Series for the Systematic Investigation of Membrane Proteins.
Biomacromolecules
January 2025
Department of Chemistry and Polymer Science, Stellenbosch University, Private Bag X1, Matieland 7602, South Africa.
Membrane proteins (MPs) are critical to cellular processes and serve as essential therapeutic targets. However, their isolation and characterization are often impeded by traditional detergent-based methods, which can compromise their native states, and retention of their native lipid environment. Amphiphilic polymers have emerged as effective alternatives, enabling the formation of nanoscale discs that preserve MPs' structural and functional integrity.
View Article and Find Full Text PDFExpression and purification of the intact bacterial ergothioneine transporter EgtU.
Protein Expr Purif
March 2025
Department of Chemistry, Indiana University, Bloomington, IN, USA. Electronic address:
The bacterial ATP-binding cassette (ABC) transporter EgtU is responsible for uptake of the cellular antioxidant ergothioneine in Streptococcus pneumoniae, and it has homologs in a surprisingly diverse range of microbial pathogens. Crystal structures have been reported for the solute binding domain of EgtU, but many details of the structure and function of the intact heterotetrameric transporter remain to be elucidated. In this study, we have expressed S.
View Article and Find Full Text PDFProtein-Protein Interaction and Conformational Change in the Alpha-Helical Membrane Transporter BtuCD-F in the Native Cellular Envelope.
Chembiochem
January 2025
Department of Physics, Freie Universität Berlin, Arnimallee 14, Berlin, 14195, Germany.
Alpha-helical membrane proteins perform numerous critical functions essential for the survival of living organisms. Traditionally, these proteins are extracted from membranes using detergent solubilization and reconstitution into liposomes or nanodiscs. However, these processes often obscure the effects of nanoconfinement and the native environment on the structure and conformational heterogeneity of the target protein.
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