Evidence map›Paper›PMID 31370926›Full record

ArticleMethods in enzymology2019

Chemical modification of proteins with photocleavable groups.

Karthik Nadendla, Bhagyesh Sarode, Simon H Friedman

Abstract read
In one paragraph

Article in Methods in enzymology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing 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

7 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. A Light Activated Glucagon Trimer with Resistance to Fibrillation.ACS biomaterials science & engineering · 2021
    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.

Karthik NadendlaDivision of Pharmaceutical Sciences, University of Missouri-Kansas City, School of Pharmacy, Kansas City, MO, United States.
Bhagyesh SarodeDivision of Pharmaceutical Sciences, University of Missouri-Kansas City, School of Pharmacy, Kansas City, MO, United States.
Simon H FriedmanDivision of Pharmaceutical Sciences, University of Missouri-Kansas City, School of Pharmacy, Kansas City, MO, United States. Electronic address: friedmans@umkc.edu.

Funding

Cannula-free and pump-free delivery of insulin using lightDP3DK106921 · NIDDK · UNIVERSITY OF MISSOURI KANSAS CITY · PI FRIEDMAN, SIMON H · 2015 to 2015
$1.4M
NIDDK NIH HHS DP3 DK106921
6 · The paper itself

Abstract

In this work, we describe methods for synthesizing and incorporating a wide range of photocleavable groups into proteins. These are based on the di-methoxyl nitro phenyl ethyl (DMNPE) group. Using a common ketone starting material, we have modified the DMNPE core with different peptides and small molecules. We describe how these can be incorporated into DMNPE either by solution or solid phase methods. In addition, we show how the ketone group can be effectively converted into a hydrazone group and ultimately into a diazo. The potential pitfall of azine formation is also delineated, as are the strategies for avoiding this side product. We then show how these modified diazo groups can then be reacted with the carboxyl groups of the protein to make the final ester product. Finally, we show how the ultimate product can be purified, and the products identified using 280 and 345nm ratios, as well as ESI-MS characterization. The combined methods should allow the incorporation of many possible photocleavable groups into a range of proteins, and allow the ultimate properties of the modified protein to be subsequently toggled with light.

Indexed as

Azo CompoundsChemistry Techniques, SyntheticHumansHydrazonesLightNitrobenzenesPeptidesPhotochemical ProcessesProteinsSolid-Phase Synthesis TechniquesAzo CompoundsHydrazonesNitrobenzenesPeptidesProteinsDMNPEPhoto-activated depotPhotocleavable groupsProtein modification

Identifiers

PMID31370926
PMCPMC7050930

What OpenQuestion holds

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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.