CD Biosynsis offers specialized Synechococcus spp. CRISPR-Cas9 Genome Editing Services, providing high-precision genetic engineering for one of the most important model organisms in marine microbiology and biotechnology. Synechococcus species, such as S. elongatus PCC 7942 and S. sp. PCC 7002, are renowned for their rapid growth, robust photosynthesis, and genetic tractability. Our platform is designed to overcome the historical challenges of cyanobacterial engineering, such as polyploidy and efficient chromosomal segregation, allowing for the rapid generation of homozygous mutants for metabolic engineering and fundamental research.
Our expert team provides end-to-end support for Synechococcus engineering, utilizing codon-optimized Cas9 and Cas12a (Cpf1) systems specifically tailored for cyanobacterial expression. We employ advanced delivery methods, including natural transformation, conjugation, and electroporation, to ensure high editing efficiency. By integrating CRISPR technology with specialized replicative and integrative vectors, we enable precise gene knockouts, knock-ins, and transcriptional regulation. Whether you are aiming to produce biofuels, high-value pigments, or biodegradable plastics, our Synechococcus genome editing workflow ensures the delivery of stable, high-performance strains with verified genotypes.
Get a QuoteSynechococcus species serve as excellent "chassis" for synthetic biology due to their ability to convert solar energy and CO2 directly into organic compounds. However, traditional engineering via homologous recombination often requires lengthy periods of selective pressure to achieve full segregation across multiple genome copies. Our CRISPR-Cas9 platform accelerates this process by utilizing the nuclease to provide selective pressure against wild-type alleles, facilitating the rapid isolation of homozygous mutants. We have optimized Cas9 and Cas12a toxicity levels—a common hurdle in cyanobacteria—using inducible promoters and low-copy number vectors.
Beyond simple knockouts, our platform enables complex metabolic rewiring. We can target competitive carbon sinks, such as glycogen synthesis, to redirect carbon flux toward target molecules like isobutanol or sucrose. Our systems are also compatible with "scarless" editing, allowing for multiple rounds of modification without accumulating antibiotic resistance markers. This capability is essential for building sophisticated biosynthetic pathways that require the coordinated expression of multiple exogenous enzymes while maintaining the overall fitness and photosynthetic efficiency of the Synechococcus host.
We provide a variety of genetic manipulation tools designed to meet the specific requirements of both fast-growing marine and freshwater Synechococcus strains.
Rapid Segregation
Utilizing CRISPR to eliminate wild-type chromosomal copies, significantly shortening the time required to reach homozygosity in polyploid Synechococcus strains.
Large Deletions
Using dual-gRNA strategies to excise entire gene clusters or large genomic regions to streamline the cyanobacterial chassis.
Neutral Sites (NS)
Integration of pathways into well-characterized "Neutral Sites" (e.g., NS1, NS2) to ensure stable expression without disrupting essential growth genes.
Scarless Integration
Markerless integration techniques that allow for the creation of genetically modified strains without residual antibiotic markers, ideal for environmental applications.
Tunable Repression
Utilizing dCas9 to sterically block transcription, allowing for the reversible knockdown of essential genes that cannot be completely deleted.
Multiplexed Control
Simultaneously regulating multiple genes in a single pathway to optimize metabolic flux and maximize bioproduct yields.
Our rigorous technical pipeline ensures the delivery of verified, genetically stable, and homozygous modified strains.
1. Computational Design
2. Build & Transformation
3. Selection & Segregation
4. Verification & Delivery
Bioinformatic design of gRNAs with minimized off-target potential. Selection of appropriate promoters (e.g., Ptrc, PpsbAII) and codon optimization of Cas nucleases for Synechococcus.
Assembly of CRISPR vectors (replicative or integrative). Transformation via natural competence, conjugation (triparental mating), or electroporation depending on the species.
Genotype verification via Sanger sequencing and junction PCR. Functional validation of target traits (e.g., growth analysis, metabolic profiling). Delivery of cryopreserved strains.
Accelerated Homozygosity
Significantly reduces the time required for chromosomal segregation in polyploid Synechococcus, cutting development cycles by weeks.
Markerless Flexibility
Advanced scarless editing techniques enable the construction of complex, marker-free production strains for industrial and ecological use.
Optimized Nuclease Tools
Utilizing codon-optimized and tightly regulated Cas9/Cas12a variants to minimize nuclease-related toxicity in cyanobacteria.
Industrial Stability
Verification of long-term genetic stability under various light and nutrient regimes to ensure industrial reliability.
Technical insights for your Synechococcus engineering project.
Contact Us1. How do you handle polyploidy in Synechococcus?
We use CRISPR-Cas nucleases to specifically target and eliminate wild-type genome copies, forcing the cell to maintain only the edited alleles during segregation.
2. Which Synechococcus strains are supported?
We have extensive experience with S. elongatus PCC 7942, Synechococcus sp. PCC 7002, and can adapt our protocols for other marine or freshwater isolates.
3. Is Cas9 toxic to Synechococcus?
High-level constitutive expression of Cas9 can be toxic. We utilize inducible promoters or Cas12a (Cpf1) variants, which are often better tolerated in cyanobacteria.
4. Can you perform multiple edits in the same strain?
Yes. By using markerless or iterative editing strategies, we can perform sequential knockouts or knock-ins to build complex metabolic pathways.
5. What are Neutral Sites (NS)?
Neutral sites are genomic locations where exogenous DNA can be integrated without significantly affecting the growth rate or metabolic health of the host under standard conditions.
6. How do you verify full segregation?
We use colony PCR with primers flanking the target site. A single band corresponding to the edited allele confirms that the wild-type copies have been eliminated.
7. Do you provide help with pathway optimization?
Yes, we offer integrated metabolic engineering services, including promoter selection and gene dosage optimization, to maximize bioproduct synthesis.
8. What is the typical turnaround time for a knockout mutant?
A standard single-gene knockout project from design to homozygous strain delivery typically takes 10 to 14 weeks.
CRISPR-Cas9 technology represents a transformative advancement in gene editing techniques. The main function of the system is to precisely cut DNA sequences by combining guide RNA (gRNA) with the Cas9 protein. This technology became a mainstream genome editing tool quickly after its 2012 introduction because of its efficient, simple and low-cost nature.
The CRISPR gene editing system with its Cas9 version stands as a vital instrument for current biological research. CRISPR technology enables gene knockout (KO) through permanent gene expression blockage achieved by sequence disruption. Various scientific domains including disease modeling and drug screening employ this technology to study gene functions. CRISPR KO technology demonstrates high efficiency and precision but requires confirmation and verification post-implementation because unsatisfactory editing may produce off-target effects or incomplete gene knockouts which impact experimental result reliability. For precise and efficient Gene Editing Services - CD Biosynsis, Biosynsis offers comprehensive solutions tailored to your research needs.
The CRISPR-Cas9 knockout cell line was developed using CRISPR/Cas9 gene editing to allow scientists to remove genes accurately for research on gene function and disease models and pharmaceutical discovery. Genetic research considers this technology essential due to its high efficiency together with simple operation and broad usability.
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CD Biosynsis is a leading customer-focused biotechnology company dedicated to providing high-quality products, comprehensive service packages, and tailored solutions to support and facilitate the applications of synthetic biology in a wide range of areas.