CD Biosynsis offers cutting-edge Genome Editing Services specifically optimized for Corynebacterium glutamicum, the foundational host for industrial production of amino acids (such as L-lysine and L-glutamate) and various valuable biochemicals. Our comprehensive platform utilizes the most advanced genetic tools, including optimized CRISPR-Cas9 systems, to perform precise, high-efficiency gene knockouts, knock-ins, and complex regulatory modifications. We provide end-to-end solutions, delivering fully verified, marker-free strains that are essential for successful metabolic engineering and rapid industrial bioprocess advancement.
Get a QuoteEfficiently engineering the highly regulated metabolic pathways of C. glutamicum demands tools that offer speed, precision, and multiplexing capacity. Traditional gene editing methods often fall short in this Gram-positive host. Our specialized services overcome these limitations by providing access to optimized, highly reliable systems for targeted genome manipulation. This allows for rational strain design, rapid construction of complex pathways, fine-tuning of gene expression, and elimination of competing pathways, ensuring your engineered strains possess maximum yield potential and stability for large-scale fermentation.
Our foundational, high-efficiency platform for most targeted genome modifications.
Precise deletion of genes responsible for byproduct formation or competing pathways (marker-free options available).
Stable chromosomal integration of desired expression cassettes or entire heterologous pathways.
Introduction of single nucleotide polymorphisms (SNPs) to optimize enzyme kinetics or regulatory sites without double-strand breaks.
Point Mutation Services
Introduction of specific amino acid changes to remove feedback inhibition or enhance enzyme stability.
Multiplex Editing
Simultaneous modification of multiple target loci (knockouts, insertions) in a single transformation cycle.
Reversible, adjustable gene silencing using dCas9 for metabolic flux fine-tuning and functional studies.
Promoter & RBS Tuning
Precision modification of regulatory sequences to achieve optimal, balanced expression levels for biosynthetic pathways.
Our standardized process ensures high success rates and rigorous verification for every project.
1. Design & Vector Construction
2. Host Transformation & Editing
3. Selection & Plasmid Curing
4. Genetic Verification (QC) & Delivery
Consultation and bioinformatic design of high-specificity sgRNAs with minimized off-target risk.
Synthesis and construction of the optimized Cas9/sgRNA expression vector and the homologous repair template.
Optimization of homology arm lengths for maximum recombination efficiency in C. glutamicum.
High-efficiency delivery of the editing system into the C. glutamicum host using proprietary electroporation/conjugation protocols.
Implementation of the editing cycle, including the induction of Cas9 expression.
High-throughput screening and selection of positive edited clones.
Use of counter-selection markers (e.g., sacB) to effectively cure the Cas9-containing plasmid.
Final isolation of clean, marker-free, stable engineered strains.
PCR Confirmation: Verification of the correct insertion/deletion size.
Sequencing: Sanger Sequencing across the entire edited region to confirm 100\% sequence fidelity.
Delivery of the final, fully verified engineered strain and a detailed Certificate of Analysis (CoA).
Optimized CRISPR Systems
Proprietary Cas9 expression and delivery systems specifically tuned for high editing efficiency in the C. glutamicum host.
Guaranteed Precision & QC
Mandatory 100% sequence fidelity verification via Sanger sequencing for every single edit (point mutation, indel).
Marker-Free Delivery
Protocols designed to remove all antibiotic resistance markers and the editing plasmid, ensuring stable, regulatory-compliant strains.
Complex Editing Expertise
Routine capability for advanced projects, including multiplex editing, large fragment knock-ins, and dCas9 repression.
"The CRISPR-Cas9 platform delivered a complex gene knockout strain quickly and with guaranteed sequence fidelity, accelerating our metabolic pathway study by months."
Dr. Chen, Head of Strain Engineering, Industrial Amino Acid Producer
"Their precision base editing allowed us to subtly modify a key promoter sequence, achieving optimal gene expression balance for our bioconversion process."
Mr. David Smith, Project Manager, Metabolic Pathway Optimization Group
"We successfully used the marker-free strain for pilot-scale fermentation with full confidence in its genetic stability and compliance."
Dr. Lena Koo, R&D Scientist, Synthetic Biology Startup
Why is CRISPR-Cas9 the preferred method for C. glutamicum?
CRISPR-Cas9 significantly boosts editing efficiency, especially for sequential and multiplex edits, which are traditionally difficult due to the low efficiency of native homologous recombination in C. glutamicum.
Are the final strains guaranteed to be marker-free?
Yes. Our optimized protocol ensures the efficient removal of the Cas9-containing plasmid and any temporary selection markers, delivering a clean, marker-free genome for industrial use.
How do you verify the accuracy of the editing?
Every single edited locus is verified by PCR analysis and subsequent Sanger Sequencing across the entire modified region to guarantee 100% sequence accuracy and confirm successful editing.
Can you integrate large DNA fragments, such as whole pathways?
Yes. Our Gene Knock-in service is optimized for the stable chromosomal integration of large biosynthetic gene clusters or heterologous pathways (up to several kb).
What is the primary use of CRISPRi Gene Repression in this host?
CRISPRi (using dCas9) is used for reversible, conditional gene silencing, which is ideal for studying the function of essential genes or fine-tuning the expression of regulatory components in a non-permanent way.
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.