The electrode assemblies of a MicroRotofor focusing chamber (Bio-Rad) were filled with 0.1 M phosphoric acid (anode electrolyte) and 0.1 M sodium hydroxide (cathode electrolyte).
The protein samples (3 ml) were injected into the focusing chamber of the Microrotofor cell Bio-Rad Laboratories Inc , Hercules, CA) using a 3 ml syringe until all ten compartments were equally loaded.
The ion-exchange membranes, separating the electrode reservoirs and the focusing chamber, were equilibrated overnight in respectively 0.1 M H3PO4 (for a cation-exchange membrane) and 0.1 M NaOH (for an anion-exchange membrane).
In recent programs he has focused on chamber music, performing a concert with the Tetzlaff Quartet (of which he is first violinist) and a duo recital with the violinist Antje Weithaas.
The effect of angular position of samples in the focus chamber according to ion flux and energy is reported by analyzing the crystalline structure (XRD patterns) and surface morphology (AFM and SEM images) of the deposited samples.
Two milligrams of B. g. rhinoceros venom were mixed with 3 ml of non-reducing rotofor buffer [7M urea, 2M thiourea, 10% (v/v) glycerol and 2.5% (v/v) ampholytes (pI 6 8) in Milli-Q water] and loaded on to the focussing chamber.
Protein preparations were separated by isoelectric focussing employing fixed gradient gels (SERVAlyt Prenets pH 3 10, Electrophoresis GmbH, Heidelberg, Germany) and a focussing chamber (Amersham Bioscience, Buckinghamshire, UK).
After scoring for the presence of foci, chamber slides were returned to the incubator for 2 weeks to allow time for colonies with greater than 50 cells to form.
It will focus on chamber opera and mount four Benjamin Britten works this summer.
7 30 p.m., Zankel Hall, Carnegie Hall, (212 247-7800, $44 to $52. (Eichler) CONCERTANTE (Sunday) This omnivorous ensemble focuses on chamber repertory beyond the string quartet.
