Evidence map›Paper›PMID 20036210›Full record

ArticleAnalytical biochemistry2010

Non-natural amino acid fluorophores for one- and two-step fluorescence resonance energy transfer applications.

Julie M G Rogers, Lisa G Lippert, Feng Gai

Abstract read
In one paragraph

Article in Analytical biochemistry, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed.

  1. Site-Specific Interrogation of Protein Structure and Stability.Methods in molecular biology (Clifton, N.J.) · 2022
    Article
  2. Article
  3. Minimalist IR and fluorescence probes of protein function.Current opinion in chemical biology · 2016
    Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Review
  9. Quenching ofChemical physics letters · 2013
    Article
  10. Article
  11. Spectroscopic studies of protein folding: linear and nonlinear methods.Protein science : a publication of the Protein Society · 2012
    Review
  12. Article
  13. Review
  14. Article
  15. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Julie M G RogersDepartment of Biochemistry and Molecular Biophysics, University of Pennsylvania, Philadelphia, PA 19104, USA.
Lisa G Lippert
Feng Gai

Funding

STRUCTURAL BIOLOGY TRAINING PROGRAMT32GM008275 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI WAND, A. JOSHUA · 1988 to 2018
$6.0M
Spectroscopic Study of Protein Folding DynamicsR01GM065978 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI GAI, FENG · 2002 to 2014
$3.9M
NIGMS NIH HHS GM-065978NIGMS NIH HHS R01 GM065978NIGMS NIH HHS T32 GM008275NIGMS NIH HHS T32-GM008275
6 · The paper itself

Abstract

Fluorescence resonance energy transfer (FRET) provides a powerful means to study protein conformational changes. However, the incorporation of an exogenous FRET pair into a protein could lead to undesirable structural perturbations of the native fold. One of the viable strategies to minimizing such perturbations is to use non-natural amino acid-based FRET pairs. Previously, we showed that p-cyanophenylalanine (Phe(CN)) and tryptophan (Trp) constitute such a FRET pair, useful for monitoring protein folding-unfolding transitions. Here we further show that 7-azatryptophan (7AW) and 5-hydroxytryptophan (5HW) can also serve as a FRET acceptor to Phe(CN), and the resultant FRET pairs offer certain advantages over Phe(CN)-Trp. For example, the fluorescence spectrum of 7AW is sufficiently separated from that of Phe(CN), making it straightforward to decompose the FRET spectrum into donor and acceptor contributions. Moreover, we show that Phe(CN), Trp, and 7AW can be used together to form a multi-FRET system, allowing more structural information to be extracted from a single FRET experiment. The applicability of these FRET systems is demonstrated in a series of studies where they are employed to monitor the urea-induced unfolding transitions of the villin headpiece subdomain (HP35), a designed betabetaalpha motif (BBA5), and the human Pin1 WW domain.

Indexed as

5-HydroxytryptophanAmino AcidsAmino Acid SequenceFluorescence Resonance Energy TransferHumansMolecular Sequence DataNeurofilament ProteinsNIMA-Interacting Peptidylprolyl IsomerasePeptide FragmentsPeptidylprolyl IsomeraseProtein FoldingProtein Structure, TertiarySpectrometry, FluorescenceTryptophan5-Hydroxytryptophan7-azatryptophanAmino AcidsNeurofilament ProteinsNIMA-Interacting Peptidylprolyl IsomerasePeptide FragmentsPeptidylprolyl IsomerasePIN1 protein, humanTryptophanvillin headpiece subdomain peptide

Identifiers

PMID20036210
PMCPMC2830288

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.