A1960
Aggrecan from bovine articular cartilage
lyophilized powder
Synonym(s):
Aggrecan Protein
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About This Item
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biological source
bovine articular cartilage
Quality Level
form
lyophilized powder
packaging
glass bottle of 1 mg
technique(s)
cell culture | mammalian: suitable
impurities
salt, essentially free
color
white
solubility
H2O: 2 mg/mL
UniProt accession no.
shipped in
wet ice
storage temp.
−20°C
Gene Information
cow ... AGC1(280985)
Application
Aggrecan is a critical component for cartilage structure and the function of joints. Its synthesis and degradation are being studied for their roles in cartilage deterioration during joint injury disease and aging.
Biochem/physiol Actions
This molecule produces a rigid, reversibly deformable gel that resists compression. It combines with hyaluronic acid to form very large macromolecular complexes that have an increased hydrohynamic volume and a significant increase (30-40%) in the relative viscosity of the solution.
Components
Aggrecan is a major structural proteoglycan of the cartilage extracellular matrix. It is a large proteoglycan, with a molecular weight greater than 2,500 kDa composed of approximately 100-150 glycosaminoglycan chains attached to a core protein. The majority of these glycosaminoglycan chains are chondroitin/dermatan sulfate. Aggrecan contains three globular domains, G1, G2, and G3, which are involved in aggregation and hylauronan binding, cell adhesion and chondrycte apoptosis.
Caution
Store this product at -20°C. Stored as supplied, this powder shows little decomposition in 3 years when stored properly.
Preparation Note
This product is extracted from articular cartilage, chematographically purified, dialyzed against water, and 0.2 μm filtered prior to lyophilization. Once lyophilized, this powder is essentially salt-free. The product is soluble in water at 2 mg/mL.
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Certificates of Analysis (COA)
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Association of the aggrecan keratan sulfate-rich region with collagen in bovine articular cartilage.
H Hedlund et al.
The Journal of biological chemistry, 274(9), 5777-5781 (1999-02-20)
Aggrecan, the predominant large proteoglycan of cartilage, is a multidomain macromolecule with each domain contributing specific functional properties. One of the domains contains the majority of the keratan sulfate (KS) chain substituents and a protein segment with a proline-rich hexapeptide
C J Billington et al.
The Biochemical journal, 336 ( Pt 1), 207-212 (1998-11-10)
The breakdown of aggrecan in cartilage is, in part, mediated by an enzyme named aggrecanase that cleaves within the interglobular domain of the molecule between a glutamic residue and an alanine residue. Although the enzyme cleavage site has been identified
L Cao et al.
Matrix biology : journal of the International Society for Matrix Biology, 17(5), 379-392 (1998-11-20)
The proteoglycan aggrecan is a major component of cartilage, and degradation of aggrecan is associated with aging and a number of pathological conditions. To investigate the effects of the accumulation of G1 domain from degraded aggrecan, we overexpressed the G1
L Cao et al.
Experimental cell research, 246(2), 527-537 (1999-02-02)
A major feature of cartilage deterioration during joint injury and disease is aggrecan degradation and the loss of proteoglycan. Most of the degraded fragments are released into the circulatory system except the G1 domain which accumulates locally in the synovial
The structure, function and turnover of aggrecan, the large aggregating proteoglycan from cartilage.
T E Hardingham et al.
European journal of clinical chemistry and clinical biochemistry : journal of the Forum of European Clinical Chemistry Societies, 32(4), 249-257 (1994-04-01)
Aggrecan, the large aggregating proteoglycan from cartilage contains chondroitin sulphate and keratan sulphate attached to a multidomain protein core. It aggregates by binding to hyaluronan and this is further stabilised by a separate globular link protein. There are two structurally
Articles
Uncover more about glycosaminoglycans and proteoglycans including the structure of glycosaminoglycans (GAGs), the different types of GAGs, and their functions.
Glycosaminoglycans are large linear polysaccharides constructed of repeating disaccharide units.
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