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C2905 Sigma

Chondroitinase ABC from Proteus vulgaris

lyophilized powder, 0.3-3 units/mg solid (using chondroitin sulfate C as substrate)

Synonym: Chondroitin ABC Lyase

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Description

Frequently Asked Questions

Frequently Asked Questions are available for this Product.

Other Notes

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

Packaging

2, 5, 10 units in glass bottle

Packages based on chondroitinase C activity.

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.

Unit Definition

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

Physical form

Lyophilized powder containing Tris buffer salts

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.

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Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3
Protocols & Articles

Articles

Glycosaminoglycan Sulfation and Signaling

Glycosaminoglycans are large linear polysaccharides constructed of repeating disaccharide units. The disaccharide units that are the basis of all glycosaminoglycans (except keratan) are a combination...
Vicki Caligur
BioFiles 2008, 3.10, 4.
Keywords: Adhesion, Aminations, Angiogenesis, Anticoagulants, Apoptosis, Atomic absorption spectroscopy, Cancer, Cell biology, Cell proliferation, Cell signaling, Cellular processes, Central Nervous System, Chromatography, Coagulation, Degradations, Enzyme-linked immunosorbent assay, Epimerizations, Gene expression, Genetic, Genomics, Growth factors, Help, High performance liquid chromatography, Inflammation, Ion-exchange chromatography, Ligands, Mass spectrometry, Methods, Microarray Analysis, Morphogenesis, Nuclear magnetic resonance spectroscopy, Phosphorylations, Polymerase chain reaction, Polymerization reactions, Proteomics, Reductive aminations, Sequences, Spectroscopy, Sulfations, Transcription, Type, transformation

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Enzymes & Proteins

Application Index | Enzyme Index | Substrate Index | Inhibitor Index | Cofactor Index | Lectin Index
Keywords: Cell signaling, Diagnostic, Drug discovery, Molecular biology

Peer-Reviewed Papers
15

References

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