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Tyrosine phosphorylation-deficient mutant calmodulin, production method thereof and use of same in biological methods.

Authors: Villalobo, Antonio; Sánchez-Torres, Juan; Cusidó-Hita, David M.;

Tyrosine phosphorylation-deficient mutant calmodulin, production method thereof and use of same in biological methods.

Abstract

[EN]The invention relates to a mutant calmodulin (CaM) protein which is deficient in phosphorylation of at least one of the two sole tyrosine residues of native CaM (CaM mutant Y99F, CaM mutant Y138F, CaM mutant Y99F/Y138F) and to a genetic engineering method of obtaining said mutant CaM. The inventive mutant CaM has many applications which take advantage of the fact that the physiological properties thereof are different from those of native CaM, owing to the elimination of cell signalling pathways involving the phosphorylated forms of CaM in the aforementioned mutant residues. Said applications include, inter alia, using the inventive mutant CaM in methods of identifying novel CaM inhibitors and assessing the effect of already-identified CaM inhibitors, which are of enormous interest in the pharmaceutical field. [ES]La invención proporciona una proteína calmodulina (CaM) mutada, deficiente en la fosforilación en al menos en uno de los dos únicos residuos de tirosina de la CaM nativa (CaM mutada Y99F, CaM mutada Y138F, CaM mutada Y99F/Y138F) y un procedimiento de obtención por ingeniería genética de dicha CaM mutada. Las aplicaciones que se pueden abordar con la CaM mutada de la presente invención son muy amplias, aprovechando que presenta unas propiedades fisiológicas diferentes a las de la CaM nativa ya que se eliminan vías de señalización celular donde estén implicadas las formas fosforiladas de la CaM en dichos residuos mutados, entre otras, su utilización en procedimientos de identificación de nuevos inhibidores de CaM y para valorar el efecto de inhibidores de CaM ya identificados de gran interés en el campo farmacéutico.

Fecha de solicitud: 18.11.2003.- Titular: Consejo Superior deInvestigaciones Científicas (CSIC).

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selected citations
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This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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