Heterologous Production of Death Ligands’ and Death Receptors’ Extracellular Domains: Structural Features and Efficient Systems

Author: Muraki, Michiro

Source: Protein and Peptide Letters, Volume 19, Number 8, August 2012 , pp. 867-879(13)

Publisher: Bentham Science Publishers

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Abstract:

The extracellular domains of death ligands and those of death receptors are closely related to many serious human diseases through the initiation of apoptosis. Recombinant production of the extracellular domains has been investigated due to demand for a large amount of purified samples, which are a prerequisite for their biochemical characterization and constitute the fundamentals of medical applications. This review focuses on the recombinant production of extracellular domains of the major members of death ligand and death receptor families using non-mammalian expression systems with an emphasis on Fas ligand and Fas receptor. In contrast to the efficient production of the functional extracellular domains of TRAIL, TNFα and LTα by intracellular expression systems using Escherichia coli or Pichia pastoris, that of Fas ligand requires the secretory expression systems using P. pastoris or Dictyostelium discoideum, and the productivity in P. pastoris was largely dependent on tag sequence, potential N-glycosylation site and expressed protein region. On the other hand, the exploitation of insect cell systems is generally useful for the preparation of functional extracellular domains of death receptors containing many disulfide bridges in the absence of extended secondary structure, and a Bombyx mori larvae secretion system presented a superior productivity for human Fas receptor extracellular domain. Based on the results obtained so far, further efforts should be devoted to the artificial control of death ligand – death receptor interactions in order to make a contribution to medicine, represented by the development of novel biopharmaceuticals.
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  • Protein & Peptide Letters publishes short papers in all important aspects of protein and peptide research, including structural studies, recombinant expression, function, synthesis, enzymology, immunology, molecular modeling, drug design etc. Manuscripts must have a significant element of novelty, timeliness and urgency that merit rapid publication. Reports of crystallisation, and preliminary structure determinations of biologically important proteins are acceptable. Purely theoretical papers are also acceptable provided they provide new insight into the principles of protein/peptide structure and function.
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