FlopR: An Open Source Software Package for Calibration and Normalization of Plate Reader and Flow Cytometry Data.

Abstract:

:The measurement of gene expression using fluorescence markers has been a cornerstone of synthetic biology for the past two decades. However, the use of arbitrary units has limited the usefulness of these data for many quantitative purposes. Calibration of fluorescence measurements from flow cytometry and plate reader spectrophotometry has been implemented previously, but the tools are disjointed. Here we pull together, and in some cases improve, extant methods into a single software tool, written as a package in the R statistical framework. The workflow is validated using Escherichia coli engineered to express green fluorescent protein (GFP) from a set of commonly used constitutive promoters. We then demonstrate the package's power by identifying the time evolution of distinct subpopulations of bacteria from bulk plate reader data, a task previously reliant on laborious flow cytometry or colony counting experiments. Along with standardized parts and experimental methods, the development and dissemination of usable tools for quantitative measurement and data analysis will benefit the synthetic biology community by improving interoperability.

journal_name

ACS Synth Biol

journal_title

ACS synthetic biology

authors

Fedorec AJH,Robinson CM,Wen KY,Barnes CP

doi

10.1021/acssynbio.0c00296

subject

Has Abstract

pub_date

2020-09-18 00:00:00

pages

2258-2266

issue

9

issn

2161-5063

journal_volume

9

pub_type

杂志文章
  • The Resistome: A Comprehensive Database of Escherichia coli Resistance Phenotypes.

    abstract::The microbial ability to resist stressful environmental conditions and chemical inhibitors is of great industrial and medical interest. Much of the data related to mutation-based stress resistance, however, is scattered through the academic literature, making it difficult to apply systematic analyses to this wealth of...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.6b00150

    authors: Winkler JD,Halweg-Edwards AL,Erickson KE,Choudhury A,Pines G,Gill RT

    更新日期:2016-12-16 00:00:00

  • A Modular Receptor Platform To Expand the Sensing Repertoire of Bacteria.

    abstract::Engineered bacteria promise to revolutionize diagnostics and therapeutics, yet many applications are precluded by the limited number of detectable signals. Here we present a general framework to engineer synthetic receptors enabling bacterial cells to respond to novel ligands. These receptors are activated via ligand-...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.7b00266

    authors: Chang HJ,Mayonove P,Zavala A,De Visch A,Minard P,Cohen-Gonsaud M,Bonnet J

    更新日期:2018-01-19 00:00:00

  • Engineering Translational Activators with CRISPR-Cas System.

    abstract::RNA parts often serve as critical components in genetic engineering. Here we report a design of translational activators which is composed of an RNA endoribonuclease (Csy4) and two exchangeable RNA modules. Csy4, a member of Cas endoribonuclease, cleaves at a specific recognition site; this cleavage releases a cis-rep...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.5b00130

    authors: Du P,Miao C,Lou Q,Wang Z,Lou C

    更新日期:2016-01-15 00:00:00

  • Switching Protein Localization by Site-Directed RNA Editing under Control of Light.

    abstract::Site directed RNA editing is an engineered tool for the posttranscriptional manipulation of RNA and proteins. Here, we demonstrate the inclusion of additional N- and C-terminal protein domains in an RNA editing-dependent manner to switch between protein isoforms in mammalian cell culture. By inclusion of localization ...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.7b00113

    authors: Vogel P,Hanswillemenke A,Stafforst T

    更新日期:2017-09-15 00:00:00

  • Cooperativity to increase Turing pattern space for synthetic biology.

    abstract::It is hard to bridge the gap between mathematical formulations and biological implementations of Turing patterns, yet this is necessary for both understanding and engineering these networks with synthetic biology approaches. Here, we model a reaction-diffusion system with two morphogens in a monostable regime, inspire...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/sb500233u

    authors: Diambra L,Senthivel VR,Menendez DB,Isalan M

    更新日期:2015-02-20 00:00:00

  • Programming the Dynamic Control of Bacterial Gene Expression with a Chimeric Ligand- and Light-Based Promoter System.

    abstract::To program cells in a dynamic manner, synthetic biologists require precise control over the threshold levels and timing of gene expression. However, in practice, modulating gene expression is widely carried out using prototypical ligand-inducible promoters, which have limited tunability and spatiotemporal resolution. ...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.8b00280

    authors: Jayaraman P,Yeoh JW,Zhang J,Poh CL

    更新日期:2018-11-16 00:00:00

  • Cloning, Stability, and Modification of Mycoplasma hominis Genome in Yeast.

    abstract::Mycoplasma hominis is a minimal human pathogen that is responsible for genital and neonatal infections. Despite many attempts, there is no efficient genetic tool to manipulate this bacterium, limiting most investigations of its pathogenicity and its uncommon energy metabolism that relies on arginine. The recent clonin...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.6b00379

    authors: Rideau F,Le Roy C,Descamps ECT,Renaudin H,Lartigue C,Bébéar C

    更新日期:2017-05-19 00:00:00

  • Strategies for Editing Virulent Staphylococcal Phages Using CRISPR-Cas10.

    abstract::Staphylococci are prevalent skin-dwelling bacteria that are also leading causes of antibiotic-resistant infections. Viruses that infect and lyse these organisms (virulent staphylococcal phages) can be used as alternatives to conventional antibiotics and represent promising tools to eliminate or manipulate specific spe...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.7b00240

    authors: Bari SMN,Walker FC,Cater K,Aslan B,Hatoum-Aslan A

    更新日期:2017-12-15 00:00:00

  • Structural Characterization of a Synthetic Tandem-Domain Bacterial Microcompartment Shell Protein Capable of Forming Icosahedral Shell Assemblies.

    abstract::Bacterial microcompartments are subcellular compartments found in many prokaryotes; they consist of a protein shell that encapsulates enzymes that perform a variety of functions. The shell protects the cell from potentially toxic intermediates and colocalizes enzymes for higher efficiency. Accordingly, it is of consid...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.9b00011

    authors: Sutter M,McGuire S,Ferlez B,Kerfeld CA

    更新日期:2019-04-19 00:00:00

  • Minimization of Elements for Isothermal DNA Replication by an Evolutionary Approach.

    abstract::DNA replication is one of the central functions of the cell. The complexity of modern DNA replication systems raises a question: is it possible to achieve a simpler continuous isothermal DNA replication using fewer proteins? Here, we searched such replication using an evolutionary approach. Through a long-term serial ...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.0c00137

    authors: Okauchi H,Sakatani Y,Otsuka K,Ichihashi N

    更新日期:2020-07-17 00:00:00

  • Design and Characterization of an Icosahedral Protein Cage Formed by a Double-Fusion Protein Containing Three Distinct Symmetry Elements.

    abstract::Exploiting simple types of symmetry common to many natural protein oligomers as a starting point, several recent studies have succeeded in engineering complex self-assembling protein architectures reminiscent but distinct from those evolved in the natural world. Designing symmetric protein cages with a wide range of p...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.9b00392

    authors: Cannon KA,Nguyen VN,Morgan C,Yeates TO

    更新日期:2020-03-20 00:00:00

  • Robust Characterization of Two Distinct Glutarate Sensing Transcription Factors of Pseudomonas putida l-Lysine Metabolism.

    abstract::A significant bottleneck in synthetic biology involves screening large genetically encoded libraries for desirable phenotypes such as chemical production. However, transcription factor-based biosensors can be leveraged to screen thousands of genetic designs for optimal chemical production in engineered microbes. In th...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.9b00255

    authors: Thompson MG,Costello Z,Hummel NFC,Cruz-Morales P,Blake-Hedges JM,Krishna RN,Skyrud W,Pearson AN,Incha MR,Shih PM,Garcia-Martin H,Keasling JD

    更新日期:2019-10-18 00:00:00

  • Heterochiral DNA Strand-Displacement Based on Chimeric d/l-Oligonucleotides.

    abstract::Heterochiral DNA strand-displacement reactions enable sequence-specific interfacing of oligonucleotide enantiomers, making it possible to interface native d-nucleic acids with molecular circuits built using nuclease-resistant l-DNA. To date, all heterochiral reactions have relied on peptide nucleic acid (PNA), which p...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.9b00335

    authors: Young BE,Sczepanski JT

    更新日期:2019-12-20 00:00:00

  • Refactoring and optimization of light-switchable Escherichia coli two-component systems.

    abstract::Light-switchable proteins enable unparalleled control of molecular biological processes in live organisms. Previously, we have engineered red/far-red and green/red photoreversible two-component signal transduction systems (TCSs) with transcriptional outputs in E. coli and used them to characterize and control syntheti...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/sb500273n

    authors: Schmidl SR,Sheth RU,Wu A,Tabor JJ

    更新日期:2014-11-21 00:00:00

  • Systematic Tools for Reprogramming Plant Gene Expression in a Simple Model, Marchantia polymorpha.

    abstract::We present the OpenPlant toolkit, a set of interlinked resources and techniques to develop Marchantia as testbed for bioengineering in plants. Marchantia is a liverwort, a simple plant with an open form of development that allows direct visualization of gene expression and dynamics of cellular growth in living tissues...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.9b00511

    authors: Sauret-Güeto S,Frangedakis E,Silvestri L,Rebmann M,Tomaselli M,Markel K,Delmans M,West A,Patron NJ,Haseloff J

    更新日期:2020-04-17 00:00:00

  • Synthetic tunable amplifying buffer circuit in E. coli.

    abstract::While predictable design of a genetic circuit's output is a major goal of synthetic biology, it remains a significant challenge because DNA binding sites in the cell affect the concentration of available transcription factors (TF). To mitigate this problem, we propose to use a TF that results from the (reversible) pho...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/sb5002533

    authors: Nilgiriwala KS,Jiménez J,Rivera PM,Del Vecchio D

    更新日期:2015-05-15 00:00:00

  • Metabolic Engineering of Escherichia coli for Efficient Production of 2-Pyrone-4,6-dicarboxylic Acid from Glucose.

    abstract::2-Pyrone-4,6-dicarboxylic acid (PDC) is a pseudoaromatic dicarboxylic acid and is a promising biobased building block chemical that can be used to make diverse polyesters with novel functionalities. In this study, Escherichia coli was metabolically engineered to produce PDC from glucose. First, an efficient biosynthet...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.8b00281

    authors: Luo ZW,Kim WJ,Lee SY

    更新日期:2018-09-21 00:00:00

  • A Genetically Encoded Protein Polymer for Uranyl Binding and Extraction Based on the SpyTag-SpyCatcher Chemistry.

    abstract::A defining goal of synthetic biology is to develop biomaterials with superior performance and versatility. Here we introduce a purely genetically encoded and self-assembling biopolymer based on the SpyTag-SpyCatcher chemistry. We show the application of this polymer for highly efficient uranyl binding and extraction f...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.8b00223

    authors: Yang X,Wei J,Wang Y,Yang C,Zhao S,Li C,Dong Y,Bai K,Li Y,Teng H,Wang D,Lyu N,Li J,Chang X,Ning X,Ouyang Q,Zhang Y,Qian L

    更新日期:2018-10-19 00:00:00

  • Light-Inducible Recombinases for Bacterial Optogenetics.

    abstract::Optogenetic tools can provide direct and programmable control of gene expression. Light-inducible recombinases, in particular, offer a powerful method for achieving precise spatiotemporal control of DNA modification. However, to-date this technology has been largely limited to eukaryotic systems. Here, we develop opto...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.9b00395

    authors: Sheets MB,Wong WW,Dunlop MJ

    更新日期:2020-02-21 00:00:00

  • Identification of Novel Cryptic Multifunctional Antimicrobial Peptides from the Human Stomach Enabled by a Computational-Experimental Platform.

    abstract::Novel approaches are needed to combat antibiotic resistance. Here, we describe a computational-experimental framework for the discovery of novel cryptic antimicrobial peptides (AMPs). The computational platform, based on previously validated antimicrobial scoring functions, indicated the activation peptide of pepsin A...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.8b00084

    authors: Pane K,Cafaro V,Avitabile A,Torres MT,Vollaro A,De Gregorio E,Catania MR,Di Maro A,Bosso A,Gallo G,Zanfardino A,Varcamonti M,Pizzo E,Di Donato A,Lu TK,de la Fuente-Nunez C,Notomista E

    更新日期:2018-09-21 00:00:00

  • Exploring the Nonconserved Sequence Space of Synthetic Expression Modules in Bacillus subtilis.

    abstract::Increasing protein expression levels is a key step in the commercial production of enzymes. Predicting promoter activity and translation initiation efficiency based solely on consensus sequences have so far met with mixed results. Here, we addressed this challenge using a "brute-force" approach by designing and synthe...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.8b00110

    authors: Sauer C,Ver Loren van Themaat E,Boender LGM,Groothuis D,Cruz R,Hamoen LW,Harwood CR,van Rij T

    更新日期:2018-07-20 00:00:00

  • A System for Gene Expression Noise Control in Yeast.

    abstract::Gene expression noise arises from stochastic variation in the synthesis and degradation of mRNA and protein molecules and creates differences in protein numbers across populations of genetically identical cells. Such variability can lead to imprecision and reduced performance of both native and synthetic networks. In ...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.8b00279

    authors: Mundt M,Anders A,Murray SM,Sourjik V

    更新日期:2018-11-16 00:00:00

  • New Prodigiosin Derivatives Obtained by Mutasynthesis in Pseudomonas putida.

    abstract::The deeply red-colored natural compound prodigiosin is a representative of the prodiginine alkaloid family, which possesses bioactivities as antimicrobial, antitumor, and antimalarial agents. Various bacteria including the opportunistic human pathogen Serratia marcescens and different members of the Streptomycetaceae ...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.7b00099

    authors: Klein AS,Domröse A,Bongen P,Brass HUC,Classen T,Loeschcke A,Drepper T,Laraia L,Sievers S,Jaeger KE,Pietruszka J

    更新日期:2017-09-15 00:00:00

  • Exploiting Single Domain Antibodies as Regulatory Parts to Modulate Monoterpenoid Production in E. coli.

    abstract::Synthetic biology and metabolic engineering offer potentially green and attractive routes to the production of high value compounds. The provision of high-quality parts and pathways is crucial in enabling the biosynthesis of chemicals using synthetic biology. While a number of regulatory parts that provide control at ...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.0c00375

    authors: Wilkes J,Scott-Tucker A,Wright M,Crabbe T,Scrutton NS

    更新日期:2020-10-16 00:00:00

  • An Orthogonal Multi-input Integration System to Control Gene Expression in Escherichia coli.

    abstract::In many biotechnological applications, it is useful for gene expression to be regulated by multiple signals, as this allows the programming of complex behavior. Here we implement, in Escherichia coli, a system that compares the concentration of two signal molecules, and tunes GFP expression proportionally to their rel...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.7b00109

    authors: Annunziata F,Matyjaszkiewicz A,Fiore G,Grierson CS,Marucci L,di Bernardo M,Savery NJ

    更新日期:2017-10-20 00:00:00

  • Artificial conversion of the mating-type of Saccharomyces cerevisiae without autopolyploidization.

    abstract::Crossbreeding is a classical yeast hybridization procedure, where the mating of haploid cells of opposite mating-type, MATa and MATα cells, produces a new heterozygous diploid. Here, we describe a method to generate haploid MATa and MATα cells using mating-type conversion caused by expression of the HO gene, which enc...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/sb400016j

    authors: Fukuda N,Matsukura S,Honda S

    更新日期:2013-12-20 00:00:00

  • Reversing an Extracellular Electron Transfer Pathway for Electrode-Driven Acetoin Reduction.

    abstract::Microbial electrosynthesis is an emerging technology with the potential to simultaneously store renewably generated energy, fix carbon dioxide, and produce high-value organic compounds. However, limited understanding of the route of electrons into the cell remains an obstacle to developing a robust microbial electrosy...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.8b00498

    authors: Tefft NM,TerAvest MA

    更新日期:2019-07-19 00:00:00

  • Directed acyclic graph-based technology mapping of genetic circuit models.

    abstract::As engineering foundations such as standards and abstraction begin to mature within synthetic biology, it is vital that genetic design automation (GDA) tools be developed to enable synthetic biologists to automatically select standardized DNA components from a library to meet the behavioral specification for a genetic...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/sb400135t

    authors: Roehner N,Myers CJ

    更新日期:2014-08-15 00:00:00

  • Semisupervised Gaussian Process for Automated Enzyme Search.

    abstract::Synthetic biology is today harnessing the design of novel and greener biosynthesis routes for the production of added-value chemicals and natural products. The design of novel pathways often requires a detailed selection of enzyme sequences to import into the chassis at each of the reaction steps. To address such desi...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/acssynbio.5b00294

    authors: Mellor J,Grigoras I,Carbonell P,Faulon JL

    更新日期:2016-06-17 00:00:00

  • Evolutionary stability of a refactored phage genome.

    abstract::Engineered genetic systems are commonly unstable; if propagated, they evolve to reverse or modify engineered elements because the elements impair fitness. A goal of synthetic biology is thus to anticipate and avoid detrimental engineering, but little is yet known about which types of elements cause problems in differe...

    journal_title:ACS synthetic biology

    pub_type: 杂志文章

    doi:10.1021/sb300040v

    authors: Springman R,Molineux IJ,Duong C,Bull RJ,Bull JJ

    更新日期:2012-09-21 00:00:00