Abstract
The isolation of an individual polypeptide from a heterogeneous mix is an essential process in characterizing a protein of interest. In purified form a protein can be used to generate specific polyclonal and monoclonal antibodies for in vivo studies, in vitro the enzymic properties or interactions with nucleic acids or other proteins can be studied in detail and related to in viva function and, ultimately, the purified proteins can be used in structural determinations that define how polypeptide chains fold and amino acids interact to create a protein with a specific function. Protein purification exploits the properties a polypeptide derives from its unique amino acid composition and separation techniques rely on variations in solubility, size, charge, hydrophobicity and specific affinities to achieve fractionation. A combination of these methods is sufficient to isolate an individual protein from a complex mix. A prerequisite for any purification is the ability to unambiguously distinguish the protein of interest at all stages. This can be achieved by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE), Western blotting with specific antisera, or by use of an assay specific for an activity of the protein.
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References
Conner, J, Marsden, H., and Clements, J B (1994) Rrbonucleotide reductase of herpesviruses. Rev Med Virol. 4, 25–34
Dutta, B M, Frame, M C, Subak-Sharpe, J H, Clark, W N, and Marsden, H S. (1986) Specific inhibition of herpes virus ribonucleotide reductase by synthetic peptides. Nature (Lond) 321, 439–441.
Studier, F W and Moffat, B A. (1986) Use of bacterrophage T7 polymerase to direct high-level expression of cloned genes J Mol Biol 189, 113–130
Furlong, J., Meighan, M, Conner, J, Murray, J., and Clements, J. B (1992) Methods for improved protein expression using PET vectors. Nucleic Acids Res 20, 46–68.
Furlong, J, Conner, J, McLauchlan, J, Lankinen, H, Gait, C, Marsden, H S, and Clements, J. B. (1991) The large subunit of herpes simplex virus type 1 rtbonucleotlde reductase expression in Eschertchza coli and purtfication Virologv 182, 846–851
Lankinen, H., McLauchlan, J, Wetr, M, Furlong, J., Conner, J., McGarrrty, A, Mrstry, A., Clements, J B., and Marsden, H. S (1991) Purification and characterization of the herpes stmplex virus type 1 ribonucleotide reductase small subunit following expression m Eschertchza co/c J Gen blol. 72, 1383–1392
Atherton, E, Gait, M. J, Sheppard, R. C, and Wtlhams, B J. (1979) The polya-mide method of solid phase peptide and oligonucleotide synthesis Bloorg Chem 8, 35l–370
Sheppard, R. C (1983) Continuous flow methods in orgamc synthesis. Chem Brit. 19, 402–413.
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© 1998 Humana Press Inc., Totowa, NJ
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Conner, J. (1998). Protein Purification. In: Brown, S.M., MacLean, A.R. (eds) Herpes Simplex Virus Protocols. Methods in Molecular Medicine, vol 10. Humana Press. https://doi.org/10.1385/0-89603-347-3:121
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DOI: https://doi.org/10.1385/0-89603-347-3:121
Publisher Name: Humana Press
Print ISBN: 978-0-89603-347-4
Online ISBN: 978-1-59259-594-5
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