Evidence map›Paper›PMID 39008257›Full record

ArticleMethods in molecular biology (Clifton, N.J.)2024

Heterologous Expression and Purification of Eukaryotic ALA Synthase from E. coli.

Breann L Brown

Abstract read
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In one paragraph

Article in Methods in molecular biology (Clifton, N.J.), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Review
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

1 author.

Breann L BrownDepartment of Biochemistry, Vanderbilt University School of Medicine, Nashville, TN, USA. breann.brown@vanderbilt.edu.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This chapter presents a method for the heterologous expression and purification of human ALA synthase from Escherichia coli. Mature ALAS is produced with an N-terminal hexahistidine affinity tag followed by a SUMO fusion tag for solubility and ease of purification. The plasmid is introduced into competent E. coli cells, and robust protein expression is induced with IPTG. The ALAS cofactor, pyridoxal 5'-phosphate, is inserted during protein production to yield an active enzyme upon purification. After cell lysis, the tagged ALAS protein is isolated via a multistep purification that involves an initial nickel-affinity step, affinity tag cleavage and removal, and a final size exclusion chromatography polishing step. Importantly, this protocol is amenable to various ALAS truncations and mutations, opening the door to understanding ALAS biology and its intersections with iron utilization across several organisms.

Indexed as

Escherichia coliChromatography, AffinityChromatography, GelCloning, MolecularGene ExpressionHistidineHumansOligopeptidesPlasmidsRecombinant Fusion ProteinsHis-His-His-His-His-HisHistidineOligopeptidesRecombinant Fusion ProteinsAminolevulinic acidAminolevulinic acid synthaseHemeIronMitochondriaProtein expression and purificationPyridoxal 5′-phosphate

Identifiers

PMID39008257

What OpenQuestion holds

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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.