Iduronic acid (IdoA) is a fundamental uronic acid component of crucial glycosaminoglycans (GAGs) like heparin and dermatan sulfate. Glucuronic acid (GlcA) and IdoA are stereoisomers known as C5 epimers. They possess the identical chemical formula but differ only in the spatial arrangement of the hydrogen and hydroxyl groups around the fifth carbon atom. This seemingly minor difference has profound biological consequences: the transition from the GlcA configuration to the IdoA configuration imparts a crucial flexibility to the GAG chain, enabling it to adopt the specific conformation required for high-affinity binding to various protein ligands, such as growth factors and antithrombin.

The technical core of our service is the precise, large-scale deployment of Glucuronic acid C5 epimerase (GlcA C5 epimerase). The GlcA C5 epimerase acts as a potent and highly selective biocatalyst, accelerating the conversion of GlcA into IdoA. This enzymatic route is superior to chemical synthesis because the enzyme's active site ensures complete stereochemical fidelity: it exclusively targets and inverts the C5 position without introducing byproducts or racemic mixtures, leading directly to a pure IdoA product. Creative Biolabs' custom IdoA production service helps you obtain high-quality IdoA, essential for critical research through advanced enzymatic biocatalysis using GlcA C5 epimerase. Our custom service is meticulously designed to obtain High-Value Glycomolecule. We deliver unparalleled stereochemical purity and defined quantities tailored precisely to your specific project needs.

Fig.1 Biosynthesis of HS. (OA Literature) Fig.1 Biosynthesis of heparin sulfate.¹

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Precision IdoA Production Service

Our process is meticulously engineered for transparency, control, and high yield, providing clients with full confidence in the final product's quality and structural integrity. The following steps outline our approach to delivering custom-production IdoA.

Required Starting Materials
- Target quantity and purity specification: This informs our reaction volume and purification strategy.
- Substrate and enzyme: High-purity GlcA C5 epimerase and GlcA substrate are selected.
- End-use application and quality requirements: A brief description of the final use to guide downstream quality control and documentation.
Key Steps Involved

1

Biocatalytic reaction initiation
The reaction system is carefully optimized within a controlled bioreactor environment. Key parameters, including ideal pH, temperature, and the necessary cofactor concentration, are established. The purified GlcA C5 epimerase is then introduced to the GlcA substrate to initiate the stereospecific epimerization at the C5 carbon.

2

Real-time reaction monitoring and kinetic control
The progress of the epimerization is tracked in real-time using sensitive analysis techniques, primarily HPLC with high-resolution detection. This kinetic analysis allows our biochemists to continuously monitor the GlcA-to-IdoA conversion ratio. Dynamic adjustments to reaction conditions are made, if necessary, to maximize the yield of IdoA and minimize any potential for degradation or undesirable side reactions.

3

Multi-stage purification and isolation
Upon reaching the maximum desired IdoA concentration, the reaction is quenched. The target IdoA is then separated from unreacted GlcA substrate, the spent enzyme, and buffer components using a multi-stage process. This involves advanced techniques such as ion-exchange chromatography, followed by size-exclusion chromatography or specialized crystallization techniques, ensuring exceptional isolation yield and removal of all biological contaminants.

4

Rigorous quality control and structural confirmation
The isolated, purified IdoA product undergoes comprehensive analysis. Mass spectrometry (MS) confirms the molecular weight and purity profile, while NMR spectroscopy is performed to unequivocally confirm the final structure.
Final Deliverables:
- High-purity IdoA product: The precisely measured quantity of IdoA, confirmed via gravimetric analysis, delivered in the requested format.
- Comprehensive QC report: A detailed, traceable document including all raw data to fully support the product's identity and purity claim.

A one-stop production process for IdoA. (Creative Biolabs AI)

Why Choose Us?

Unrivaled Enzymatic Precision and Stereospecificity

Our core strength lies in utilizing recombinant GlcA C5 epimerase. Our biocatalytic method ensures near-perfect stereochemical purity at the biologically critical C5 position. This stereospecificity is paramount for generating GAG precursors that exhibit predictable biological functions.

Guaranteed Scalability and Process Consistency

We have meticulously validated protocols for producing IdoA from research scale up to industrial scale. Our established, controlled bioreactor systems ensure that this scale-up occurs without sacrificing purity or yield, guaranteeing a consistent, high-quality supply chain necessary for long-term specialized research.

Dedicated Glycoscience Expertise

Our team consists of specialized biochemists and process engineers with decades of combined experience in biocatalysis and complex carbohydrate chemistry. This deep specialization provides not only the product but also expert consultation and troubleshooting at every technical stage of your project.

Application

Drug development: IdoA is the core monosaccharide responsible for the anticoagulant effects of heparin and low molecular weight heparin. Through customized production, researchers synthesize heparin oligosaccharides with specific sequences for developing novel drugs.
Standard development in glycomics research: Due to the complex structure and difficulty in isolating IdoA, high-purity IdoA standards are extremely scarce for MS and NMR characterization. Customized services provide essential quantitative standards for glycobank construction and metabolomics research.
Tissue engineering and biomimetic materials: IdoA possesses unique biomechanical properties and growth factor binding capabilities. In tissue engineering, customized IdoA components are integrated into synthetic scaffolds or hydrogels to mimic the natural extracellular matrix, promoting stem cell differentiation and tissue regeneration and repair.

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FAQs

Q1: How does the purity of Creative Biolabs's enzymatically produced IdoA compare to standard chemical standards?

A: Our enzymatic process guarantees significantly higher stereochemical purity than traditional chemical synthesis. Because GlcA C5 epimerase is highly specific, it minimizes unwanted side products and, critically, residual GlcA contamination (the C5 epimer), which is almost always present in chemically synthesized batches. This leads to more reliable, clean, and reproducible results in sensitive biological and structural assays.

Q2: Can you handle the production quantities required for high-volume structural studies?

A: We are fully equipped to handle requests ranging from milligrams for small-scale structural studies and early-stage SAR work up to multi-gram quantities required for large-scale structural studies. Our dedicated in-house bioreactor system is optimized for robust, continuous enzymatic reactions, making large-scale production both reliable and highly cost-effective compared to traditional organic synthesis. Let us know your current quantity needs and projected future requirements so we can quickly assess capacity and provide a long-term supply plan.

Q3: Can Creative Biolabs perform specific isotopic labeling on the IdoA?

A: Yes, we excel at performing specific stable isotopic labeling. By utilizing appropriately labeled precursor substrates (e.g., 13C-labeled GlcA), we can introduce isotopes like 13C or 15N into the IdoA molecule. The critical confirmation is achieved using advanced NMR techniques that map the label's precise position, ensuring the integrity of your metabolic tracing or structural studies. We can provide a detailed quote for any specific labeling pattern your advanced project requires.

Customer Review

High Purity for Complex NMR
"The purity of the IdoA from Creative Biolabs is exceptional. Using their custom IdoA production service in our structural biology research has significantly improved the resolution and interpretability of our 2D NMR data. We can now confidently assign complex carbohydrate linkages, an achievement that was impossible with our previous commercial standards."- Dr. A***n H.

Labeling Precision
"We approached Creative Biolabs with a requirement for a highly specific 13C-labeled IdoA to perform metabolic flux analysis in cell culture. They delivered the exact product we needed, and the detailed QC report confirmed the precise label placement and incorporation efficiency, saving us considerable in-house synthesis and validation time."- Pro. K***y S.

Extended Services

Custom Synthesis

Once you have the high-purity IdoA precursor, you may require the final complex GAG structure. We can incorporate the synthesized IdoA into larger, defined oligosaccharide scaffolds, creating specific Heparin or dermatan sulfate fragments for advanced structural studies and functional screening.

Recombinant Enzyme Development

We offer custom expression and purification of key Glycosyltransferases, Epimerases, and lyases to support your internal enzymatic synthesis needs.

Analysis Services

Leverage our cutting-edge analysis platforms for comprehensive structural confirmation and impurity analysis of your final synthesized product or complex glycan structure. We provide end-to-end assistance for structural determination and rigorous quality verification.

How to Contact Us

Creative Biolabs' custom IdoA production service delivers the highest industry standard of stereochemical purity and scalable production. The foundation of this production capability is our unique GlcA C5 epimerase enzymatic system, bolstered by unparalleled expertise. We are committed to providing the essential, structurally correct IdoA products necessary to accelerate and advance your glycobiology, biomaterial development, and specialized research projects. Please reach out to our specialist team today for a detailed technical consultation and a customized quotation.

Reference

Mashima, Ryuichi et al. "Physiology and Pathophysiology of Heparan Sulfate in Animal Models: Its Biosynthesis and Degradation." International Journal of Molecular Sciences vol. 23,4 1963. 10 Feb. 2022. Distributed under Open Access license CC BY 4.0, without modification. https://doi.org/10.3390/ijms23041963

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