Evidence map›Paper›PMID 26608683›Full record

ArticleChemistry (Weinheim an der Bergstrasse, Germany)2015

Azidoethoxyphenylalanine as a Vibrational Reporter and Click Chemistry Partner in Proteins.

Elise M Tookmanian, Christine M Phillips-Piro, Edward E Fenlon, Scott H Brewer

Open access · greenAbstract read
In one paragraph

Article in Chemistry (Weinheim an der Bergstrasse, Germany), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
1.4field-weighted citation impact, top 20% of its field
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

6 citing papers in PubMed, 13 citations in OpenAlex.

  1. Article
  2. Article
  3. Extending the vibrational lifetime of azides with heavy atoms.Physical chemistry chemical physics : PCCP · 2020
    Article
  4. Crystal structures of green fluorescent protein with the unnatural amino acid 4-nitro-L-phenylalanine.Acta crystallographica. Section F, Structural biology communications · 2018
    Article
  5. Article
  6. 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

4 authors at 1 institution in 1 country.

Elise M TookmanianDepartment of Chemistry Franklin & Marshall College, P.O. Box 3003, Lancaster, PA 17604 (USA).
Christine M Phillips-PiroDepartment of Chemistry Franklin & Marshall College, P.O. Box 3003, Lancaster, PA 17604 (USA). cpiro@fandm.edu.
Edward E FenlonDepartment of Chemistry Franklin & Marshall College, P.O. Box 3003, Lancaster, PA 17604 (USA). efenlon@fandm.edu.
Scott H BrewerDepartment of Chemistry Franklin & Marshall College, P.O. Box 3003, Lancaster, PA 17604 (USA). sbrewer@fandm.edu.
Franklin & Marshall College · US

Funding

Overall EvaluationP41GM103403 · NIGMS · CORNELL UNIVERSITY · PI EALICK, STEVEN E · 2012 to 2017
$14.3M
Use of Vibrational Reporters to Measure Dynamics and Distances in RNA and ProteinsR15GM093330 · NIGMS · FRANKLIN AND MARSHALL COLLEGE · PI BREWER, SCOTT H, FENLON, EDWARD EMMETT · 2010 to 2024
$1.3M
NIGMS NIH HHS P41 GM103403NIGMS NIH HHS R15 GM093330
6 · The paper itself

Abstract

An unnatural amino acid, 4-(2-azidoethoxy)-L-phenylalanine (AePhe, 1), was designed and synthesized in three steps from known compounds in 54% overall yield. The sensitivity of the IR absorption of the azide of AePhe was established by comparison of the frequency of the azide asymmetric stretch vibration in water and dimethyl sulfoxide. AePhe was successfully incorporated into superfolder green fluorescent protein (sfGFP) at the 133 and 149 sites by using the amber codon suppression method. The IR spectra of these sfGFP constructs indicated that the azide group at the 149 site was not fully solvated despite the location in sfGFP and the three-atom linker between the azido group and the aromatic ring of AePhe. An X-ray crystal structure of sfGFP-149-AePhe was solved at 1.45 Å resolution and provides an explanation for the IR data as the flexible linker adopts a conformation which partially buries the azide on the protein surface. Both sfGFP-AePhe constructs efficiently undergo a bioorthogonal strain-promoted click cycloaddition with a dibenzocyclooctyne derivative.

Indexed as

AzidesClick ChemistryCycloaddition ReactionCyclooctanesGreen Fluorescent ProteinsPhenylalanineSpectroscopy, Near-InfraredVibration4-(2-azidoethoxy)-L-phenylalanineAzidesCyclooctanesGreen Fluorescent ProteinsPhenylalanineazidesclick chemistryIR spectroscopystructural biologyvibrational reporters

Identifiers

PMID26608683
PMCPMC4815431
OpenAlexW2177763796

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.