Recent Submissions

  • Interaction of tetrameric and dimeric FBP2 with CAMK2α, HIF1α and ALDOA

    Budziak, Bartosz (2022-08-06) [Poster]
    Macromolecular interactions are common mechanisms of protein function regulation. Emerging role of muscle fructose 1,6-bisphospatase (FBP2) in memory formation and cancer cells survival was hypothesized to be regulated by such interactions. FBP2 exists as mixture of different oligomeric states which presumably may interact with their binding partners in a different mode. Results presented here show how alterations of FBP2 quaternary structure affects interactions with such proteins as CAMK2?, HIF1? or ALDOA. We show that a dimeric FBP2 is preferred form of the enzyme for interaction with CAMK2?. On the other hand, an inactive tetrameric T-state of FBP2 binds HIF1? and, to a lesser extent, ALDOA stronger than the dimeric and an active R-state tetrameric FBP2.
  • Untargeted Metabolomic Profiling and Antioxidant Capacities of Different Solvent Crude Extracts of Ephedra foeminea

    Al-Nemi, Ruba (2022-08-06) [Poster]
    This study aims to investigate the chemical profiles of different solvent (Ace, acetone; DCM/MeOH, dichloromethane/methanol; EtOH, ethanol; EA, ethyl acetate; MeOH, methanol) extracts of Ephedra foeminea collected from Jordan via an untargeted metabolomics approach using NMR, GC-MS, LCMS and analyzing the data through Venn diagrams, PCA plots, and Metabolite Set Enrichment Analysis (MESA), while determining their antioxidant capacities using ABTS assays. Results revealed the dominant chemical groups as amino acids, fatty acids, carboxylic acids, and carbohydrates, it was also found that the DCM/MeOH and MeOH extracts had the most distinct composition and most unique compounds. The methanolic extract was relatively the most potent in the ABTS assay (IC50 249.6 µg/mL). In conclusion, solvents influenced the recovery of metabolites in E. foeminea and the antioxidant activity of the E. foeminea methanolic extract could be correlated to the abundant presence of diverse bioactive compounds.