Evidence map›Paper›PMID 22685548›Full record

ArticlePloS one2012

Systematic single-cell analysis of Pichia pastoris reveals secretory capacity limits productivity.

Kerry Routenberg Love, Timothy J Politano, Vasiliki Panagiotou, Bo Jiang, Terrance A Stadheim, J Christopher Love

Abstract read
In one paragraph

Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing 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

31 citing papers in PubMed.

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  5. Microfluidic Single-Cell Analytics.Advances in biochemical engineering/biotechnology · 2022
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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

6 authors.

Kerry Routenberg LoveDepartment of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, United States of America.
Timothy J Politano
Vasiliki Panagiotou
Bo Jiang
Terrance A Stadheim
J Christopher Love

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Biopharmaceuticals represent the fastest growing sector of the global pharmaceutical industry. Cost-efficient production of these biologic drugs requires a robust host organism for generating high titers of protein during fermentation. Understanding key cellular processes that limit protein production and secretion is, therefore, essential for rational strain engineering. Here, with single-cell resolution, we systematically analysed the productivity of a series of Pichia pastoris strains that produce different proteins both constitutively and inducibly. We characterized each strain by qPCR, RT-qPCR, microengraving, and imaging cytometry. We then developed a simple mathematical model describing the flux of folded protein through the ER. This combination of single-cell measurements and computational modelling shows that protein trafficking through the secretory machinery is often the rate-limiting step in single-cell production, and strategies to enhance the overall capacity of protein secretion within hosts for the production of heterologous proteins may improve productivity.

Indexed as

Secretory PathwayAlgorithmsEndoplasmic ReticulumFlow CytometryGene ExpressionGreen Fluorescent ProteinsHumansImmunoglobulin Fc FragmentsMicroscopy, FluorescenceModels, BiologicalPichiaPlasmidsRecombinant Fusion ProteinsReverse Transcriptase Polymerase Chain ReactionSingle-Cell AnalysisTransformation, GeneticGreen Fluorescent ProteinsImmunoglobulin Fc FragmentsRecombinant Fusion Proteins

Identifiers

PMID22685548
PMCPMC3369916

What OpenQuestion holds

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LicenceCC BY
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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.