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The importance of serine 776 in Ataxin-1 partner selection: A FRET Analysis

Overview of attention for article published in Scientific Reports, December 2012
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Title
The importance of serine 776 in Ataxin-1 partner selection: A FRET Analysis
Published in
Scientific Reports, December 2012
DOI 10.1038/srep00919
Pubmed ID
Authors

Rajesh P. Menon, Daniel Soong, Cesira de Chiara, Mark R. Holt, Narayana Anilkumar, Annalisa Pastore

Abstract

Anomalous expansion of a polymorphic tract in Ataxin-1 causes the autosomal dominant spinocerebellar ataxia type 1. In addition to polyglutamine expansion, requirements for development of pathology are phosphorylation of serine 776 in Ataxin-1 and nuclear localization of the protein. The phosphorylation state of serine 776 is also crucial for selection of the Ataxin-1 multiple partners. Here, we have used FRET for an in cell study of the interaction of Ataxin-1 with the spliceosome-associated U2AF65 and the adaptor 14-3-3 proteins. Using wild-type Ataxin-1 and Ser776 mutants to a phosphomimetic aspartate and to alanine, we show that U2AF65 binds Ataxin-1 in a Ser776 phosphorylation independent manner whereas 14-3-3 interacts with phosphorylated wild-type Ataxin-1 but not with the mutants. These results indicate that Ser776 acts as the molecular switch that discriminates between normal and aberrant function and that phosphomimetics is not a generally valid approach whose applicability should be carefully validated.

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Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 23 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Netherlands 1 4%
Brazil 1 4%
Unknown 21 91%

Demographic breakdown

Readers by professional status Count As %
Researcher 6 26%
Student > Master 5 22%
Professor > Associate Professor 4 17%
Student > Ph. D. Student 3 13%
Student > Bachelor 1 4%
Other 0 0%
Unknown 4 17%
Readers by discipline Count As %
Agricultural and Biological Sciences 12 52%
Medicine and Dentistry 2 9%
Psychology 1 4%
Biochemistry, Genetics and Molecular Biology 1 4%
Neuroscience 1 4%
Other 1 4%
Unknown 5 22%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 05 December 2012.
All research outputs
#15,206,779
of 22,687,320 outputs
Outputs from Scientific Reports
#76,593
of 122,227 outputs
Outputs of similar age
#178,768
of 277,752 outputs
Outputs of similar age from Scientific Reports
#223
of 295 outputs
Altmetric has tracked 22,687,320 research outputs across all sources so far. This one is in the 32nd percentile – i.e., 32% of other outputs scored the same or lower than it.
So far Altmetric has tracked 122,227 research outputs from this source. They typically receive a lot more attention than average, with a mean Attention Score of 18.2. This one is in the 37th percentile – i.e., 37% of its peers scored the same or lower than it.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 277,752 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 35th percentile – i.e., 35% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 295 others from the same source and published within six weeks on either side of this one. This one is in the 20th percentile – i.e., 20% of its contemporaries scored the same or lower than it.