CD Biosynsis offers professional Phaeodactylum tricornutum CRISPR-Cas9 Genome Editing Services, providing precise genetic modification for this model pennate diatom. Phaeodactylum tricornutum is a cornerstone of marine biotechnology, widely studied for its unique evolutionary history, high lipid accumulation capacity, and efficient carbon fixation. Our services utilize specialized CRISPR-Cas9 platforms optimized for the specific codon bias and regulatory elements of diatoms, overcoming challenges such as low homologous recombination rates and random integration issues. We provide comprehensive solutions including Gene Knockout (KO), Gene Knock-in (KI), and Transcriptional Regulation to accelerate research in marine ecology, biofuel production, and high-value metabolite synthesis.
Get a QuotePhaeodactylum tricornutum is an ideal chassis for industrial applications due to its rapid growth and well-sequenced genome. However, traditional genetic tools often lack the precision required for complex metabolic engineering. Our CRISPR-Cas9 platform facilitates highly specific DNA modifications by employing codon-optimized Cas9 nucleases and tailored guide RNA (gRNA) design. We specialize in delivering the CRISPR machinery via episomal vectors or DNA-free Ribonucleoprotein (RNP) complexes, ensuring efficient editing while minimizing the integration of foreign DNA. This allows for the clean disruption of competitive pathways or the stable insertion of metabolic genes, enabling the redirection of carbon flux toward high-value lipids like EPA or specialized carotenoids.
Episomal CRISPR System
Utilizing circular episomes that replicate independently in P. tricornutum, allowing for high expression of the editing machinery and subsequent vector removal for "scarless" editing.
RNP Delivery
Direct delivery of Cas9 protein and gRNA complexes to eliminate DNA integration risks and reduce off-target effects in the diatom nucleus.
Bacterial Conjugation
High-efficiency delivery of CRISPR constructs via bacterial conjugation, specifically optimized for Phaeodactylum host strains.
Gene Knockout (KO)
Inducing frameshift mutations via NHEJ-mediated indels to eliminate inhibitory enzymes or metabolic competitors.
Gene Knock-in (KI)
HDR-mediated site-specific integration of reporters or exogenous metabolic pathways into stable genomic loci.
CRISPRi / CRISPRa
Transcriptional repression or activation for the study of essential genes and the fine-tuning of metabolic flux.
Lipid Rerouting
Engineering diatoms for enhanced production of Omega-3 fatty acids (EPA) and biofuel-grade triacylglycerols (TAGs).
Fucoxanthin Production
Optimizing the carotenoid biosynthetic pathway to increase the yield of high-value pigments like fucoxanthin.
Carbon Fixation Research
Modifying the Carbon Concentrating Mechanism (CCM) to improve diatom growth rates and CO2 sequestration efficiency.
1. Design & Optimization
2. Tool Construction & Delivery
3. Selection & Clonal Isolation
4. Verification & Validation
Bioinformatic design of gRNAs with minimal off-target potential. Codon optimization of the Cas9 nuclease for maximal expression in the diatom nucleus.
Construction of specialized diatom vectors or synthesis of RNPs. Transformation via biolistic particle bombardment, electroporation, or bacterial conjugation.
Genotype Confirmation: Verification of edits via Sanger sequencing or Next-Generation Sequencing (NGS). Phenotypic Characterization: Analysis of growth kinetics, lipid profiling, and functional output. Delivery of verified strains.
Episomal Flexibility
Use of replicate episomes ensures stable editing without permanent chromosomal integration of the CRISPR machinery.
Codon Optimization
Nuclease variants are specifically tailored for Phaeodactylum tricornutum, overcoming traditional silencing and low-expression hurdles.
High Efficiency Delivery
Optimized conjugation and biolistic protocols ensure high transformation rates even in challenging industrial diatom strains.
Comprehensive Analytics
Strains are validated with advanced lipidomics and metabolic flux analysis to ensure the genetic modification meets the target phenotype.
1. Why is CRISPR-Cas9 more efficient than traditional RNAi in diatoms?
CRISPR-Cas9 provides permanent, DNA-level disruption (knockout), which is more stable and robust than the transient and often partial gene silencing achieved through RNAi.
2. Can you perform editing in industrial Phaeodactylum strains?
Yes, we can optimize our transformation and gRNA design for a wide variety of industrial isolates beyond the standard CCMP2561/Pt1 lab strains.
3. How do you handle the diploid nature of the diatom genome?
Our high-efficiency CRISPR platforms are designed to achieve bi-allelic modifications, ensuring a complete loss-of-function phenotype in the diploid host.
4. What is the typical turnaround time for a knockout strain?
A standard single-gene knockout project from design to verified monoclonal strain delivery typically takes 14 to 20 weeks.
5. Do you offer help with metabolic pathway design?
Yes, we provide metabolic modeling and flux balance analysis (FBA) to identify the best genetic targets for optimizing lipid or pigment production.
6. Is codon optimization necessary for Cas9 in Phaeodactylum?
Absolutely. Diatoms have unique codon usage and regulatory signals. We utilize nucleases specifically optimized to ensure high translational efficiency and nuclear localization.
7. Can you perform multiplexed editing?
Yes, we can deliver multiple gRNAs simultaneously to target redundant genes or multiple steps in a biosynthetic pathway.
8. What documentation is provided with the final strain?
You will receive a detailed report including gRNA sequences, sequencing confirmation of the edit, growth data, and specialized lipid/metabolic profiles as required.
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.