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Amplified vibrational circular dichroism as a probe of local biomolecular structure.

Overview of attention for article published in Journal of the American Chemical Society, February 2014
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2 tweeters

Citations

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27 Dimensions

Readers on

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3 Mendeley
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Title
Amplified vibrational circular dichroism as a probe of local biomolecular structure.
Published in
Journal of the American Chemical Society, February 2014
DOI 10.1021/ja411405s
Pubmed ID
Authors

Sérgio R. Domingos

Abstract

We show that the VCD signal intensities of amino acids and oligopeptides can be enhanced by up to 2 orders of magnitude by coupling them to a paramagnetic metal ion. If the redox state of the metal ion is changed from paramagnetic to diamagnetic the VCD amplification vanishes completely. From this observation and from complementary quantum-chemical calculations we conclude that the observed VCD amplification finds its origin in vibronic coupling with low-lying electronic states. We find that the enhancement factor is strongly mode dependent and that it is determined by the distance between the oscillator and the paramagnetic metal ion. This localized character of the VCD amplification provides a unique tool to specifically probe the local structure surrounding a paramagnetic ion and to zoom in on such local structure within larger biomolecular systems.

Twitter Demographics

The data shown below were collected from the profiles of 2 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 3 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
India 1 33%
Germany 1 33%
Switzerland 1 33%
United States 1 33%

Demographic breakdown

Readers by professional status Count As %
Researcher 16 533%
Student > Ph. D. Student 15 500%
Professor > Associate Professor 5 167%
Unspecified 4 133%
Student > Doctoral Student 3 100%
Other 7 233%
Readers by discipline Count As %
Chemistry 38 1267%
Unspecified 5 167%
Physics and Astronomy 4 133%
Agricultural and Biological Sciences 2 67%
Computer Science 1 33%
Other 0 0%

Attention Score in Context

This research output has an Altmetric Attention Score of 1. 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 14 March 2014.
All research outputs
#8,614,792
of 11,217,345 outputs
Outputs from Journal of the American Chemical Society
#38,667
of 42,589 outputs
Outputs of similar age
#115,180
of 182,554 outputs
Outputs of similar age from Journal of the American Chemical Society
#317
of 456 outputs
Altmetric has tracked 11,217,345 research outputs across all sources so far. This one is in the 20th percentile – i.e., 20% of other outputs scored the same or lower than it.
So far Altmetric has tracked 42,589 research outputs from this source. They receive a mean Attention Score of 5.0. This one is in the 7th percentile – i.e., 7% 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 182,554 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 32nd percentile – i.e., 32% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 456 others from the same source and published within six weeks on either side of this one. This one is in the 26th percentile – i.e., 26% of its contemporaries scored the same or lower than it.