Now showing items 1-2 of 2

    • Evidence for cooperative effects in human liver arginase 

      Carvajal Baeza, Nelson; Acoria García, Marina; Rodríguez Vives, Juan Pablo; Fernández Gálvez, Mireya; Martínez Winkler, Jorge (1982)
      The reaction kinetics of human liver arginase (l-arginine amidinohydrolase, EC 3.5.3.1) in terms of arginine concentration is strikingly altered by varying the pH. Lowering the pH from the optimum (9.5) toward a more ...
    • The Binding of Terbium Ions to Tubulin Induces Ring Formation 

      Monasterio Opazo, Octavio; Acoria, Marina; Diaz, Marco A.; Lagos Mónaco, Rosalba (1993)
      The intrinsic fluorescence excitation and emission spectra of chicken brain tubulin showed the characteristic tryptophan fluorescence. The emission spectrum of Tb3+ in the presence of tubulin and GTP excited at 295 nm, ...