Glucuronate C5-epimerase is a key Glycosyl Functional Enzyme in heparan sulfate (HS)/heparin biosynthesis, converting D-glucuronic acid to L-iduronic acid at the C5 position. This epimerization enhances HS/heparin chain flexibility, enabling dynamic interactions with growth factors, cytokines, and extracellular matrix proteins to regulate angiogenesis, inflammation, and developmental signaling. Defects in this Epimerase disrupt HS/heparin structure, contributing to connective tissue disorders and cancer progression by altering protein-binding properties.

Fig. 1. Production process of dermatan sulfate. (OA Literature) Fig.1 Production of dermatan sulfate.¹

Service Overview

Are you currently facing challenges in achieving specific epimerization patterns in heparin/heparan sulfate synthesis or struggling with the low yield and instability of recombinant epimerases? Our custom glucuronate C5-epimerase production service helps you obtain high-purity, kinetically optimized C5-epimerases through our proprietary native-state stabilization and glyco-engineering platforms, accelerating your development of anticoagulant and anti-inflammatory therapeutics.

Explore How We Accelerate Translational Research

Glucuronate C5-Epimerase Production Workflow

Step 1

Gene Synthesis & Optimization

We perform codon optimization specifically for the chosen host system and design secretion signals or affinity tags to facilitate downstream processing while maintaining enzyme solubility.

Step 2

Host Cell Engineering & Transfection

Utilizing our Precision Glyco-engineering platform, we modify host glycosylation pathways to ensure the C5-epimerase receives the post-translational modifications (PTMs) necessary for its complex folding and catalytic stability.

Step 3

Process Intensification & Scale-up

We employ Intensified Perfusion Bioprocessing in single-use bioreactors. This allows for continuous harvest and maintains a high viable cell density, significantly increasing the volumetric yield of the secreted epimerase.

Step 4

Native-State Purification

Using detergent-free stabilization and multi-step chromatography (Affinity, IEX, SEC), we isolate the enzyme in its native, bioactive conformation.

Step 5

Kinetic Profiling & QC

Final enzymes undergo rigorous characterization, including determination, purity analysis via SDS-PAGE/HPLC, and verification of epimerization efficiency using NMR or mass spectrometry.

Fig. 2. Glucuronate C5-Epimerase production workflow. (Creative Biolabs AI) Fig.2 Glucuronate C5-epimerase manufacturing workflow.

Final Deliverables

Purified Enzyme

High-purity glucuronate C5-epimerase in your specified buffer and concentration.

Certificate of Analysis (COA)

A comprehensive report detailing specific activity, concentration, and batch-to-batch consistency.

Project Technical Report

An in-depth summary of the optimization strategy, expression kinetics, and purification chromatograms.

Service Strengths

Expertise in Challenging Enzymes
Creative Biolabs specializes in difficult-to-express carbohydrate-modifying enzymes, leveraging synthetic biology and advanced bioprocessing to overcome solubility and stability hurdles. Unlike conventional services, we ensure robust production of enzymes like glucuronate C5-epimerase, even for complex glycosylation-dependent applications.

Native-State Stabilization Technology
Our proprietary platform preserves the structural integrity and catalytic activity of glucuronate C5-epimerase through optimized folding and stabilization. This ensures high homogeneity, even after repeated freeze-thaw cycles, making it ideal for structural biology and high-throughput screening workflows.

Customizable Glycoengineering Solutions
We tailor enzyme variants to meet specific research needs, such as modified substrate specificity, enhanced thermostability, or optimized kinetic profiles. Our semi-rational design approach accelerates the development of bespoke glucuronate C5-epimerase mutants for industrial or therapeutic applications.

End-to-End Support for Complex Projects
From strain development to scalable fermentation, Creative Biolabs provides comprehensive services to streamline enzyme production. Our team collaborates closely with clients to optimize protocols, troubleshoot challenges, and deliver high-yield, cost-effective solutions for heparan sulfate research and beyond.

Proven Track Record in Glycoscience
With a history of successfully delivering high-purity, functionally validated glucuronate C5-epimerase to leading labs worldwide, we've earned recognition for reliability and innovation. Our clients consistently report improved reproducibility and efficiency in their glycosaminoglycan studies.

Main Applications

Structural Elucidation of HS/Heparin Biosynthesis

Glucuronate C5-epimerase is critical for mapping the epimerization patterns in HS/heparin chains, enabling researchers to decode how L-iduronic acid residues influence protein-binding specificity. This aids in designing synthetic heparins with tailored bioactivity for thrombosis or cancer therapies.

High-Throughput Screening for Epimerase Inhibitors/Activators

The enzyme serves as a biochemical tool for identifying small molecules that modulate its activity. Such compounds could regulate HS composition in disease models or enhance enzymatic production of bioactive oligosaccharides for drug discovery.

Glycoengineering of Therapeutic Glycans

By expressing mutant variants of glucuronate C5-epimerase with altered substrate specificity, researchers redesign HS/heparin structures to optimize binding to therapeutic targets. This supports the development of next-generation glycosaminoglycan-based drugs.

Mechanistic Studies of Congenital Disorders

Defects in glucuronate C5-epimerase are linked to rare connective tissue diseases. The enzyme is used in patient-derived cell models to study how impaired epimerization disrupts HS function, revealing potential gene therapy or chaperone-based interventions.

Bioprocess Optimization for Industrial Enzyme Production

Researchers leverage the enzyme to optimize fermentation conditions for scalable production of recombinant glucuronate C5-epimerase. This supports cost-effective synthesis of HS/heparin precursors for biopharmaceutical manufacturing.

Working with Us to Ensure Experimental Consistency

Scientific Research Feedback

Enhanced Capacity
"Incorporating the C5-epimerase into our heparan sulfate studies has dramatically enhanced our capacity to synthesize high- L-iduronic acid oligosaccharides with consistent kinetic profiles."- 3 months ago, Dr. S.W.

Unprecedented Homogeneity
"Their native-state stabilization technology enabled unprecedented homogeneity in glucuronate C5-epimerase preparations, maintaining structural integrity even after repeated freeze-thaw cycles."- 7 months ago, Prof. M.K.

FAQs

Q: Which host systems do you recommend for C5-epimerase expression?

A: While microbial systems can be used for simple variants, we strongly recommend our glyco-engineered HEK293 or CHO lines. These mammalian systems ensure the correct N-glycosylation required for the enzyme's catalytic activity and long-term stability.

Q: Can you produce epimerase variants with specific mutations?

A: Yes. We offer site-directed mutagenesis to create variants with altered substrate specificity or enhanced thermal stability, often guided by our AI-driven protein modeling.

Q3: How do you verify the activity of the final product?

A: We utilize a standard epimerization assay followed by disaccharide analysis using SAX-HPLC or NMR spectroscopy to confirm the conversion of GlcA to IdoA residues.

Q: Is the enzyme provided in a format suitable for chemoenzymatic synthesis?

A: Absolutely. We provide the enzyme in high-concentration, glycerol-free buffers or lyophilized formats, specifically optimized for use in multi-enzyme synthetic cascades.

Extended Services

Custom Ido A Production Service

We specialize in scalable synthesis of Ido A-enriched glycosaminoglycans using engineered glucuronate C5-epimerase variants, delivering tailored oligosaccharides for structural biology, drug discovery, and bioconjugation applications with precise control over epimerization patterns.

Therapeutic Glycoprotein Development Services

Our integrated platform accelerates glyco-optimized therapeutic protein development by combining site-specific glycosylation engineering with advanced analytics, ensuring enhanced stability, efficacy, and pharmacokinetics for biologics targeting cancer, inflammation, and rare diseases.

How to Contact Us

Creative Biolabs provides a high-end solution for the production of glucuronate C5-epimerase. We deliver enzymes that possess verified catalytic activity and structural integrity, ensuring your downstream chemoenzymatic synthesis yields the desired pharmacological properties. Ready to accelerate your glycosaminoglycan research? Our team of experts is available to discuss your specific project requirements and provide a customized technical proposal. Contact us today!

Reference

Gevaert, Ophelia, et al. "Novel insights into the existence of the putative UDP-glucuronate 5-epimerase specificity." Catalysts 10.2 (2020): 222. Distributed under an Open Access license CC BY 4.0, without modification. https://doi.org/10.3390/catal10020222.

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