“¿Importa el derecho?”. Política judicial, realismo jurídico y el problema de la indeterminación del derecho en tanto que problema metodológico

  • Castillo Ortiz P
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Abstract

A Lactobacillus brevis strain with the ability to synthesize butanol from glucose was constructed by metabolic engineering. The genes crt, bcd, etfB, etfA, and hbd, composing the bcs-operon, and the thl gene encode the enzymes of the lower part of the clostridial butanol pathway (crotonase, butyryl-CoA-dehydrogenase, two subunits of the electron transfer flavoprotein, 3-hydroxybutyryl-CoA dehydrogenase, and thiolase) of Clostridium acetobutylicum. They were cloned into the Gram-positive/Gram-negative shuttle plasmid vector pHYc. The two resulting plasmids pHYc-thl-bcs and pHYc-bcs (respectively, with and without the clostridial thl gene) were transferred to Escherichia coli and L. brevis. The recombinant L. brevis strains were able to synthesize up to 300 mg l(-1) or 4.1 mM of butanol on a glucose-containing medium. A L. brevis strain carrying the clostridial bcs-operon has the ability to synthesize butanol with participation of its own thiolase, aldehyde dehydrogenase, and alcohol dehydrogenase. The particular role of the enzymes involved in butanol production and the suitability of L. brevis as an n-butanol producer are discussed.

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Castillo Ortiz, P. J. (2014). “¿Importa el derecho?”. Política judicial, realismo jurídico y el problema de la indeterminación del derecho en tanto que problema metodológico. Isegoría, 0(51), 575–596. https://doi.org/10.3989/isegoria.2014.051.03

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