Biotin attenuates heat shock factor 4b transcriptional activity by lysine 444 biotinylation
Genetic mutations in HSF4 cause congenital cataracts. HSF4 exhibits both positive and negative regulation on the transcription of heat shock and non-heat shock proteins during lens development, and its activity is regulated by posttranslational ...
Longjun Yan +18 more
doaj +1 more source
In Vivo Biotinylation of the Toxoplasma Parasitophorous Vacuole Reveals Novel Dense Granule Proteins Important for Parasite Growth and Pathogenesis. [PDF]
UnlabelledToxoplasma gondii is an obligate intracellular parasite that invades host cells and replicates within a unique parasitophorous vacuole. To maintain this intracellular niche, the parasite secretes an array of dense granule proteins (GRAs) into ...
Bell, Hannah N +7 more
core +2 more sources
Summary: Analysis of the surfaceome of a blood cell subset requires cell sorting, followed by surface protein enrichment. Here, we present a protocol combining magnetically activated cell sorting (MACS) and surface biotinylation of the target cell subset
Serife Ayaz-Guner +10 more
doaj +1 more source
Oxysterol-Binding Protein-1 (OSBP1) Modulates Processing and Trafficking of the Amyloid Precursor Protein [PDF]
BACKGROUND Evidence from biochemical, epidemiological and genetic findings indicates that cholesterol levels are linked to amyloid-β (Aβ) production and Alzheimer's disease (AD). Oxysterols, which are cholesterol-derived ligands of the liver X receptors
Abraham, Carmela R. +8 more
core +4 more sources
Synthesis of biotinylated OSW-1 [PDF]
OSW-1 is a highly potent anticancer natural saponin with an unknown mode of action. To determine its cellular target(s) biotinylated OSW-1 was successfully synthesized in nine steps.
Ying, Kang +4 more
openaire +2 more sources
Reduced neurosteroid potentiation of GABAA receptors in epilepsy and depolarized hippocampal neurons [PDF]
OBJECTIVE: Neurosteroids regulate neuronal excitability by potentiating γ-aminobutyric acid type-A receptors (GABARs). In animal models of temporal lobe epilepsy, the neurosteroid sensitivity of GABARs is diminished and GABAR subunit composition is ...
Jansen, Laura A +3 more
core +2 more sources
Identification of PLXDC1 and PLXDC2 as the transmembrane receptors for the multifunctional factor PEDF. [PDF]
Pigment Epithelium Derived Factor (PEDF) is a secreted factor that has broad biological activities. It was first identified as a neurotrophic factor and later as the most potent natural antiangiogenic factor, a stem cell niche factor, and an inhibitor of
Al-Ubaidi, Muayyad +7 more
core +1 more source
Specific biotinylation of IMP dehydrogenase [PDF]
IMP dehydrogenase (IMPDH) catalyzes a critical step in guanine nucleotide biosynthesis. IMPDH also has biological roles that are distinct from its enzymatic function. We report a biotin-linked reagent that selectively labels IMPDH and is released by dithiothreitol. This reagent will be invaluable in elucidating the moonlighting functions of IMPDH.
B Christopher, Hoefler +2 more
openaire +2 more sources
Regulation of CLC-1 chloride channel biosynthesis by FKBP8 and Hsp90β. [PDF]
Mutations in human CLC-1 chloride channel are associated with the skeletal muscle disorder myotonia congenita. The disease-causing mutant A531V manifests enhanced proteasomal degradation of CLC-1.
Chen, Shu-Ching +7 more
core +1 more source
Mechanisms Governing Precise Protein Biotinylation
Protein biotinylation is a key post-translational modification found throughout the living world. The covalent attachment of a biotin cofactor onto specific metabolic enzymes is essential for their activity. This modification is distinctive, in that it is carried out by a single enzyme: biotin protein ligase (BPL), an enzyme that is able to biotinylate
Louise M. Sternicki +4 more
openaire +4 more sources

