Reagents and instruments for immunology, cell biology and molecular biology.
 
Heparin Disaccharides

Heparin Disaccharides

Heparin consists of repeating disaccharide units primarily composed of 2-O-sulfated L-iduronic acid (IdoA(2S)) α(1→4)-linked to N-sulfated, 6-O-sulfated D-glucosamine (GlcNS(6S)). This produces the trisulfated IdoA(2S)-GlcNS(6S) motif, which accounts for approximately 75–85% of porcine or bovine heparin chains. These structural units derive from linear polymers of uronic acids (GlcA or IdoA) and glucosamine, exhibiting an average sulfation level of about 2.7 groups per disaccharide—significantly higher than that of heparan sulfate. Enzymatic depolymerization produces unsaturated ΔUA-containing disaccharides, such as ΔUA(2S)-GlcNS(6S) (heparin disaccharide I-S), commonly used for analytical profiling.

Biosynthesis and Variability

Heparin biosynthesis begins with GlcA β(1→4) N-acetylglucosamine repeating units that undergo sequential modifications, including C5-epimerization to IdoA, N-deacetylation/N-sulfation, and O-sulfation at positions 2, 6, and 3. These steps generate extensive microheterogeneity with domains of high sulfation. Major resulting disaccharides include ΔUA-GlcNAc, ΔUA-GlcNS, ΔUA(2S)-GlcNS, and ΔUA(2S)-GlcNS(6S), with compositional patterns dependent on tissue origin. These structures are typically analyzed using chromatographic methods. As a nontemplate-driven process, biosynthesis produces chains ranging from 3–30 kDa, where IdoA residues predominate over GlcA in mature heparin.

Biological Functions and Analysis

Heparin disaccharides underpin its anticoagulant activity by enabling high-affinity binding to antithrombin, particularly through the IdoA(2S)-GlcNS(6S)-containing pentasaccharide sequence. Beyond anticoagulation, structural diversity among disaccharides supports roles in inflammation, cell signaling, and extracellular matrix interactions. Detailed mapping of disaccharide composition is essential for pharmaceutical quality control and batch consistency. Variants such as heparin disaccharide IV-H (ΔUA-GlcNAc) are characteristic of less sulfated regions and affect enzymatic susceptibility and biological interactions.

Frequently Asked Questions (FAQ)

How can I quickly find a heparin disaccharides product?

To find a heparin disaccharides product, use the search function by name, product code, supplier, brand or sub-category. You can also browse the product families listed on the page to identify an available product code, an alternative or an equivalent product.

Does Biovalley stock several product codes in the heparin disaccharides category?

Yes, Biovalley distributes several product references in the heparin disaccharides category, sourced from specialist suppliers. Depending on the product family, references may vary in terms of format, packaging, brand, supplier, technical specifications or availability.

Can I request a quote for heparin disaccharides products?

Yes, you can request a quote for heparin disaccharides products from the product page or by contacting Biovalley (info@biovalley.fr). To help us process your enquiry, please provide, where possible, the product name, catalogue reference, required quantity, the supplier or brand you are looking for, and the country of delivery.

How can I find out if a heparin disaccharides product is available to order?

The availability of a heparin disaccharides product depends on the product code, supplier, packaging and country of delivery. For up-to-date information, please check the product details page or contact Biovalley with the product code or name of the product you are looking for.

What should I do if I cannot find the heparin disaccharides product I am looking for?

If the heparin disaccharides product you are looking for does not appear in the catalogue, please contact Biovalley with the available information: product name, reference number, supplier, brand, format or packaging. The team will be able to search for the reference number within its network of suppliers or suggest an available alternative.

Are all heparin disaccharides products available under the same terms and conditions?

No. Ordering, delivery, storage and documentation conditions may vary depending on the product type, the supplier and the applicable regulations. Certain product codes may require specific approval, specialised transport, a safety data sheet or additional information prior to ordering.

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