Abstract
Here we are the first to report that multifunctional Y-box binding protein 1 (YB-1) forms extended fibrils with a diameter of 15–20 nm. The YB-1 fibrils were visualized by atomic force and electron microscopy after 1-h incubation in solution with 2 M LiCl. Their length grew with incubation time and could exceed 10 μm; their shape is helical or zigzag-like. They possess polarity and tend to associate with one another to give structures of a higher order, like ribbons or bundles. The YB-1 fibrillar architecture has a distinct periodicity with a repeat unit of about 52 nm.
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Abbreviations
- AFM:
-
atomic force microscopy
- CSD:
-
cold shock domain
- EM:
-
electron microscopy
- HOPG:
-
highly ordered pyrolytic graphite
- YB-1:
-
Y-box binding protein 1
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Originally published in Biochemistry (Moscow) On-Line Papers in Press, as Manuscript BM09-351, December 20, 2009.
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Selivanova, O.M., Guryanov, S.G., Enin, G.A. et al. YB-1 is capable of forming extended nanofibrils. Biochemistry Moscow 75, 115–120 (2010). https://doi.org/10.1134/S0006297910010153
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DOI: https://doi.org/10.1134/S0006297910010153