H1136 is not supplied in solution form. The product is lyophilized directly into the ampule and its appearance is a clear, thin film.
H1136
Hyaluronidase from Streptomyces hyalurolyticus
Synonyme(s) :
Hyaluronate lyase from Streptomyces hyalurolyticus
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About This Item
Produits recommandés
Source biologique
Streptomyces sp. (S. hyalurolyticus)
Niveau de qualité
Conjugué
conjugate (Glucosaminoglycan)
Forme
film (Clear)
Conditionnement
ampule of 300 × units
Température de stockage
−20°C
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Catégories apparentées
Description générale
Application
- dans la préparation de milieux DMEM/F-12 (milieu d'Eagle modifié par Dulbecco/mélange nutritif F-12) pour l'isolement et la purification de cellules individuelles à partir de tissus tumoraux dissociés[2]
- dans une solution de digestion pour la dérivation de cellules souches germinales à partir de tissu testiculaire[3]
Actions biochimiques/physiologiques
Définition de l'unité
Autres remarques
Code de la classe de stockage
11 - Combustible Solids
Classe de danger pour l'eau (WGK)
WGK 3
Point d'éclair (°F)
Not applicable
Point d'éclair (°C)
Not applicable
Équipement de protection individuelle
Eyeshields, Gloves, type N95 (US)
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Articles
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Protocoles
To measure hyaluronidase activity, a turbidimetric determination assay is used at 600 nm. One unit of hyaluronidase activity will cause a change in absorbance of 0.330 per minute at pH 5.35 at 37 °C.
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What is the volume in each vial/ampoule?
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You mention the following buffer composition for reconstitution: "...20 mM sodium phosphate buffer, with 77 mM sodium chloride, 0.01% BSA, pH 7.0". If I want to refreeze aliquots, would you suggest the same buffer? Isn't sodium phosphate harmful here?
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Long-term solution stability studies have not been performed on the microbial source hyaluronidase. However, the bovine source products are stable for up to 1 month at 4 deg. C (500 mM acetate buffer pH 6.0) and several months at - 20 deg. C. Aliquot solutions to store frozen, avoid repeated freeze/thaw cycles. The recommended reconstitution buffer should include 0.01% BSA which acts as a stabilizer, there is no indication that the recommended sodium phosphate/sodium chloride buffer would be inappropriate for freezing.
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How is the activity of Product H1136, Hyaluronidase,determined?
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Sigma assays the enzyme against a USP hyaluronidase reference standard as described in USP XXII-NF XVII, 644 (1990).
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I can't see any material in the container. Is material present in the container?
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The product is lyophilized directly into the ampule and its appearance is a clear, thin film.
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What amount of product is present in the vial of Product H1136, Hyaluronidase?
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The dry weight of the product is not determined. The vial should contain a minimum of 300 units of enzyme.
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What is the Department of Transportation shipping information for this product?
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Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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How should Product H1136, Hyaluronidase, be reconstituted?
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Prior to determining the activity of this enzyme, we reconstitute it in 20 mM sodium phosphate buffer, with 77 mM sodium chloride, 0.01% BSA, pH 7.0.
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Are any other components present in Product H1136, Hyaluronidase, besides the enzyme?
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No protein or BSA has been added as a stabilizer. The enzyme was lyophilized from 0.5 mM Tris buffer, pH 7.0.
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What is the molecular weight of Product H1136, Hyaluronidase?
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The molecular weight for hyaluronidase from Streptomyces hyalurolyticus has been reported to be 91,000 DALTONS as determined by gel filtration.
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