I have a robust background in biochemistry and biotechnology, with a focus on protein expression, characterization, and crystallization. My research has included extensive work with the BCL-2 protein family, including challenges like optimizing buffer conditions for low pI proteins such as BOK. I’ve successfully conducted experiments using advanced techniques like ITC, chromatography, mass spectrometry, and circular dichroism.The good thingsAt La Trobe University, I gained significant experience in cutting-edge research within the fields of biochemistry and biotechnology. My work focused on the expression, purification, and characterization of proteins, particularly within the BCL-2 family, contributing to the understanding of apoptosis mechanisms. Utilizing advanced techniques such as isothermal titration calorimetry (ITC), mass spectrometry (MS), and circular dichroism (CD), I conducted in-depth analyses of protein structures and interactions.
The challengesOne of the significant challenges I encountered during my research was optimizing the buffer conditions for the BOK peptide, which had a low isoelectric point (pI). Initially, when using Tris buffer with a high pH, BOK precipitated out of the solution, making it difficult to work with. Switching to Hepes buffer provided only a partial solution, as it couldn't sufficiently lower the pH without exceeding its buffering capacity.
After extensive trials, I ultimately found that using MES buffer at a lower pH successfully dissolved BOK without causing precipitation. This experience underscored the importance of meticulous buffer optimization in protein studies, especially when dealing with proteins or peptides with low pI values. It also enhanced my problem-solving skills and deepened my understanding of protein chemistry, as I had to carefully consider the interactions between the buffer components and the protein’s properties.