Discontinuous and continuous separation of the monomeric and dimeric forms of 
human bone morphogenetic protein-2 from renaturation batches

Gueorguieva, L.; Vallejo, L. F.; Rinas, U.; Seidel-Morgenstern, A.

doi:10.1016/j.chroma.2006.08.061

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Discontinuous and continuous separation of the monomeric and dimeric forms of human bone morphogenetic protein-2 from renaturation batches

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Gueorguieva, L.
Physical and Chemical Foundations of Process Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society;
Otto-von-Guericke-Universität Magdeburg, External Organizations;

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Seidel-Morgenstern, A.
Physical and Chemical Foundations of Process Engineering, Max Planck Institute for Dynamics of Complex Technical Systems, Max Planck Society;
Otto-von-Guericke-Universität Magdeburg, External Organizations;

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Citation

Gueorguieva, L., Vallejo, L. F., Rinas, U., & Seidel-Morgenstern, A. (2006). Discontinuous and continuous separation of the monomeric and dimeric forms of human bone morphogenetic protein-2 from renaturation batches. Journal of Chromatography A, 1135(2), 142-150. doi:10.1016/j.chroma.2006.08.061.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0013-9963-2

Abstract

Bone morphogenetic protein-2 (BMP-2) is one of the most interesting of the approximately 14 BMPs which belong to the transforming-growth-factor-β (TGF-β) superfamily. BMP-2 induces bone formation and thus plays an important role as a pharmaceutical protein. Recently, rhBMP-2 has been produced in form of inactive inclusion bodies in Escherichia coli. After solubilization and renaturation the biologically active dimeric form of rhBMP-2 can be generated. However, inactive monomers of BMP-2 are also formed during the renaturation process which must be separated from the active dimeric BMP-2. The purpose of this paper is to present: (a) results of an experimental study of a chromatographic separation of the monomeric and dimeric forms; and (b) a concept for a continuous counter-current simulated moving bed (SMB) process. The capacity of heparin as stationary phase was estimated for different salt concentrations in the mobile phase. A simulation study of a three-zone SMB process was performed applying a two step salt gradient. The results reveal the potential of the process for the purification of the dimeric BMP-2. © 2006 Published by Elsevier B.V. [accessed 2013 November 27th]