Vol 2: Juxtanodin is an intrinsically disordered F-actin-binding protein.Reportar como inadecuado



 Vol 2: Juxtanodin is an intrinsically disordered F-actin-binding protein.


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This article is from Scientific Reports, volume 2.AbstractJuxtanodin, also called ermin, is an F-actin-binding protein expressed by oligodendrocytes, the myelin-forming cells of the central nervous system. While juxtanodin carries a short conserved F-actin-binding segment at its C terminus, it otherwise shares no similarity with known protein sequences. We carried out a structural characterization of recombinant juxtanodin in solution. Juxtanodin turned out to be intrinsically disordered, as evidenced by conventional and synchrotron radiation CD spectroscopy. Small-angle X-ray scattering indicated that juxtanodin is a monomeric, highly elongated, unfolded molecule. Ensemble optimization analysis of the data suggested also the presence of more compact forms of juxtanodin. The C terminus was a strict requirement for co-sedimentation of juxtanodin with microfilaments, but juxtanodin had only mild effects on actin polymerization. The disordered nature of juxtanodin may predict functions as a protein interaction hub, although F-actin is its only currently known binding partner.



Autor: Ruskamo, Salla; Chukhlieb, Maryna; Vahokoski, Juha; Bhargav, Saligram Prabhakar; Liang, Fengyi; Kursula, Inari; Kursula, Petri

Fuente: https://archive.org/







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