Summary
The production of pharmaceutical grade proteins using recombinant DNA technology necessitates a commitment on the part of the manufacturer to analyze critically these biomolecules with respect to both identity and purity. Routine analysis of recombinant proteins currently involves techniques relating to the evaluation of specific activity, homogeneity, amino acid composition, peptide maps, and N-terminal and C-terminal analyses. Confirmation of the fidelity of a recombinant protein’s primary structure is the result of sequence analysis at both the protein and the DNA levels, and implies a shared responsibility between the protein chemist and molecular biologist. Once generated, the information serves as a reference standard for progressive lots of production material. The ability to perform certain analyses is in part a reflection of the limitations of current technology. As recombinant proteins become more complex, e.g., hetero-oligomers, post-translationally modified, larger mass, constraints as to the type and degree of analysis are encountered. This paper describes areas of routine investigation for recombinant proteins and highlights some practical limitations of their analysis.
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Mattaliano, R.J., Rosa, J.J., Foeller, C., Woodard, J.P., Bertolini, M.J. (1987). Analysis of Recombinant Proteins — Current Trends and Practical Limits in Analytical Stringency. In: Walsh, K.A. (eds) Methods in Protein Sequence Analysis · 1986. Experimental Biology and Medicine, vol 14. Humana Press, Totowa, NJ. https://doi.org/10.1007/978-1-59259-480-1_6
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DOI: https://doi.org/10.1007/978-1-59259-480-1_6
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