Streamlining recombination-mediated genetic engineering by validating three neutral integration sites in Synechococcus sp. PCC 7002

Abstract Background Synechococcus sp. PCC 7002 (henceforth Synechococcus) is developing into a powerful synthetic biology chassis. In order to streamline the integration of genes into the Synechococcus chromosome, validation of neutral integration sites with optimization of the DNA transformation pr...

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Main Authors: Anne Ilse Maria Vogel, Rahmi Lale, Martin Frank Hohmann-Marriott
Format: Article
Language:English
Published: BMC 2017-06-01
Series:Journal of Biological Engineering
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13036-017-0061-8
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author Anne Ilse Maria Vogel
Rahmi Lale
Martin Frank Hohmann-Marriott
author_facet Anne Ilse Maria Vogel
Rahmi Lale
Martin Frank Hohmann-Marriott
author_sort Anne Ilse Maria Vogel
collection DOAJ
description Abstract Background Synechococcus sp. PCC 7002 (henceforth Synechococcus) is developing into a powerful synthetic biology chassis. In order to streamline the integration of genes into the Synechococcus chromosome, validation of neutral integration sites with optimization of the DNA transformation protocol parameters is necessary. Availability of BioBrick-compatible integration modules is desirable to further simplifying chromosomal integrations. Results We designed three BioBrick-compatible genetic modules, each targeting a separate neutral integration site, A2842, A0935, and A0159, with varying length of homologous region, spanning from 100 to 800 nt. The performance of the different modules for achieving DNA integration were tested. Our results demonstrate that 100 nt homologous regions are sufficient for inserting a 1 kb DNA fragment into the Synechococcus chromosome. By adapting a transformation protocol from a related cyanobacterium, we shortened the transformation procedure for Synechococcus significantly. Conclusions The optimized transformation protocol reported in this study provides an efficient way to perform genetic engineering in Synechococcus. We demonstrated that homologous regions of 100 nt are sufficient for inserting a 1 kb DNA fragment into the three tested neutral integration sites. Integration at A2842, A0935 and A0159 results in only a minimal fitness cost for the chassis. This study contributes to developing Synechococcus as the prominent chassis for future synthetic biology applications.
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spelling doaj.art-a54b82a613824f7abb027d43f591fb6c2022-12-22T03:57:28ZengBMCJournal of Biological Engineering1754-16112017-06-011111910.1186/s13036-017-0061-8Streamlining recombination-mediated genetic engineering by validating three neutral integration sites in Synechococcus sp. PCC 7002Anne Ilse Maria Vogel0Rahmi Lale1Martin Frank Hohmann-Marriott2Department of Biotechnology, PhotoSynLab, NTNU, Norwegian University of Science and TechnologyDepartment of Biotechnology, PhotoSynLab, NTNU, Norwegian University of Science and TechnologyDepartment of Biotechnology, PhotoSynLab, NTNU, Norwegian University of Science and TechnologyAbstract Background Synechococcus sp. PCC 7002 (henceforth Synechococcus) is developing into a powerful synthetic biology chassis. In order to streamline the integration of genes into the Synechococcus chromosome, validation of neutral integration sites with optimization of the DNA transformation protocol parameters is necessary. Availability of BioBrick-compatible integration modules is desirable to further simplifying chromosomal integrations. Results We designed three BioBrick-compatible genetic modules, each targeting a separate neutral integration site, A2842, A0935, and A0159, with varying length of homologous region, spanning from 100 to 800 nt. The performance of the different modules for achieving DNA integration were tested. Our results demonstrate that 100 nt homologous regions are sufficient for inserting a 1 kb DNA fragment into the Synechococcus chromosome. By adapting a transformation protocol from a related cyanobacterium, we shortened the transformation procedure for Synechococcus significantly. Conclusions The optimized transformation protocol reported in this study provides an efficient way to perform genetic engineering in Synechococcus. We demonstrated that homologous regions of 100 nt are sufficient for inserting a 1 kb DNA fragment into the three tested neutral integration sites. Integration at A2842, A0935 and A0159 results in only a minimal fitness cost for the chassis. This study contributes to developing Synechococcus as the prominent chassis for future synthetic biology applications.http://link.springer.com/article/10.1186/s13036-017-0061-8Synechococcus sp. PCC7002Neutral integration sitesGenetic engineeringTransformationBioBrickCyanobacteria
spellingShingle Anne Ilse Maria Vogel
Rahmi Lale
Martin Frank Hohmann-Marriott
Streamlining recombination-mediated genetic engineering by validating three neutral integration sites in Synechococcus sp. PCC 7002
Journal of Biological Engineering
Synechococcus sp. PCC7002
Neutral integration sites
Genetic engineering
Transformation
BioBrick
Cyanobacteria
title Streamlining recombination-mediated genetic engineering by validating three neutral integration sites in Synechococcus sp. PCC 7002
title_full Streamlining recombination-mediated genetic engineering by validating three neutral integration sites in Synechococcus sp. PCC 7002
title_fullStr Streamlining recombination-mediated genetic engineering by validating three neutral integration sites in Synechococcus sp. PCC 7002
title_full_unstemmed Streamlining recombination-mediated genetic engineering by validating three neutral integration sites in Synechococcus sp. PCC 7002
title_short Streamlining recombination-mediated genetic engineering by validating three neutral integration sites in Synechococcus sp. PCC 7002
title_sort streamlining recombination mediated genetic engineering by validating three neutral integration sites in synechococcus sp pcc 7002
topic Synechococcus sp. PCC7002
Neutral integration sites
Genetic engineering
Transformation
BioBrick
Cyanobacteria
url http://link.springer.com/article/10.1186/s13036-017-0061-8
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AT martinfrankhohmannmarriott streamliningrecombinationmediatedgeneticengineeringbyvalidatingthreeneutralintegrationsitesinsynechococcussppcc7002