Evidence map›Paper›PMID 18164211›Full record

ArticleProtein expression and purification2008

Expression and purification of cysteine introduced recombinant saporin.

Emine Günhan, Mimi Swe, Mine Palazoglu, John C Voss, Leo M Chalupa

Open access · greenAbstract readComparative Study
In one paragraph

Article in Protein expression and purification, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing papers in PubMed
–field-weighted citation impact, top 86% 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

5 citing papers in PubMed, 7 citations in OpenAlex.

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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

5 authors at 1 institution in 1 country.

Emine GünhanDepartment of Neurobiology, Physiology, and Behavior, University of California, One Shields Avenue, 196 Briggs Hall, Davis, CA 95616, USA. egunhan@ucdavis.edu
Mimi Swe
Mine Palazoglu
John C Voss
Leo M Chalupa
University of California, Davis · US

Funding

VISION RESEARCH CORE GRANTP30EY012576 · NEI · UNIVERSITY OF CALIFORNIA DAVIS · PI LISA M OAKES · 1999 to 2026
$18.9M
DEVELOPMENT AND REORGANIZATION OF PRENATAL VISUAL SYSTEMR01EY003991 · NEI · UNIVERSITY OF CALIFORNIA DAVIS · PI CHAPMAN, BARBARA · 1986 to 2010
$4.1M
NEI NIH HHS EY03991NEI NIH HHS P30 EY012576NEI NIH HHS P30-EY012576NEI NIH HHS R01 EY003991
6 · The paper itself

Abstract

Saporin, a ribosome inactivating protein is widely used for immunotoxin construction. Here we describe a mutation of saporin (sap)-3 DNA by introducing a cysteine residue, followed by protein expression and purification by ion exchange chromatography. The purified Cys255sap-3, sap-3 isomer and commercially purchased saporin, were tested for toxicity using assays measuring inhibition for protein synthesis. The IC(50) values showed that the toxicity of the Cys255sap-3 is equivalent to the sap-3 isomer and commercial saporin. Reactivity of Cys255sap-3 was confirmed by labeling with a thio-specific fluorescent probe as well as conjugation with a nonspecific mouse IgG. We have found that a single cysteine within saporin provides a method for antibody conjugation that ensures a uniform and reproducible modification of a saporin variant retaining high activity.

Indexed as

AnimalsCloning, MolecularCysteineElectrophoresis, Polyacrylamide GelEscherichia coliHumansImmunoglobulin GImmunotoxinsMaleimidesMicePlant ProteinsRabbitsRibosome Inactivating Proteins, Type 1RibosomesSaporinsCysteineImmunoglobulin GImmunotoxinsMaleimidesPlant ProteinsRibosome Inactivating Proteins, Type 1Saporins

Identifiers

PMID18164211
PMCPMC2719709
OpenAlexW2067542150

What OpenQuestion holds

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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.