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C2905

Sigma-Aldrich

Chondroitinase ABC from Proteus vulgaris

lyophilized powder, 0.3-3 units/mg solid

Synonym(s):

Chondroitin ABC Lyase

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About This Item

CAS Number:
9024-13-9
Enzyme Commission number:
4.2.2.4 (BRENDA, IUBMB)
EC Number:
232-777-9
MDL number:
MFCD00130795
UNSPSC Code:
12352204
NACRES:
NA.54

biological source

bacterial (Proteus vulgaris)

Quality Level

300

conjugate

(Glucosaminoglycan)

form

lyophilized powder

specific activity

0.3-3 units/mg solid

mol wt

~120 kDa by gel filtration

composition

Protein, ~35% biuret

application(s)

diagnostic assay manufacturing

storage temp.

−20°C

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Application

Chondroitinase ABC from Sigma has been used to digest O-linked chondroitin sulfate-like glycosaminoglycan (CSGAG). The enzyme has also been used to digest glycosaminoglycan chains in proteoglycans during the construction and expression of a recombinant versican gene in mammalian systems. Furthermore, it has been used to digest chondroitin sulfate in the proteoglycan complexes. The enzyme has also been used in the removal of glycan chains from aggrecan, which eliminates the axon growth-inhibitory effect of aggrecan.

Biochem/physiol Actions

Chondroitinase ABC catalyzes the eliminative degradation of polysaccharides containing (1-4)-β-D-hexosaminyl and (1-3)-β-D-glucuronosyl (or (1-3)-α-L-iduronosyl) linkages to disaccharides containing 4-deoxy-β-D-gluc-4-enuronosyl groups. It acts on chondroitin 4-sulfate, chondroitin 6-sulfate, and dermatan sulfate. However, it acts slowly on hyaluronate. The molecular weight is approximately 120 kDa with 2 non-identical subunits of molecular masses 86 kDa and 32 kDa. The pH optimum is 8.0 with chondroitin sulfate and 6.8 with hyaluronic acid. The optimal temperature is 37 °C. 1 mM Zn2+ acts as an inhibitor, while 0.05 M acetate is an activator of the enzyme.

Packaging

Packages based on chondroitinase C activity.

Unit Definition

One unit will liberate 1.0 μmole of a mixture of 2-acetamido-2-deoxy-3-O-(β-D-gluc-4-ene-pyranosyluronic acid)-4-O-sulfo-D-galactose and 1.0 μmole of 2-acetamido-2-deoxy-3-O-(β-D-gluc-4-ene-pyranosyluronic acid)-6-O-sulfo-D-galactose from chondroitin sulfate from shark cartilage, per min at pH 8.0 at 37 °C.

Physical form

Lyophilized powder containing Tris buffer salts

Preparation Note

Reconstitute in a 0.01% bovine serum albumin aqueous (BSA) solution. Subsequent dilutions can be made into a buffer containing 50 mM Tris, pH 8.0, with 60 mM sodium acetate and 0.02% BSA. Solutions should be freshly prepared.

Other Notes

View more information on enzymes for complex carbohydrate analysis at www.sigma-aldrich.com/enzymeexplorer

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

常规特殊物品

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

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  4. What is the Department of Transportation shipping information for this product?

    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. 

  5. What is the molecular weight of this enzyme (Product No. C2905)?

    Chondroitinase ABC is a lyase with a reported molecular weight of approximately 120 kDa by gel filtration and is composed of two subunits with molecular weights of 86 and 32.

  6. What is the composition of Product No. C2905?

    This product consists of approximately 35% protein as determined by the Biuret method. BSA (bovine serum albumin) is a major component (~90%) of the protein. The remaining 65% is Tris buffer salts.

  7. How should Product No. C2905 be reconstituted?

    Reconstitute the product in a 0.01% bovine serum albumin aqueous solution. Subsequent dilutions can be made into a buffer containing 50 mM Tris, pH 8.0, with 60 mM sodium acetate and 0.02% bovine serum albumin. Solutions should be prepared fresh.

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The Journal of biological chemistry, 273(33), 21342-21351 (1998-08-08)
Versican is a member of the large aggregating chondroitin sulfate proteoglycan family. We have expressed in NIH3T3 fibroblasts a recombinant versican mini-gene comprising the G1 and G3 domains and 15% of the CS domain. We observed that expression of the
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