Human Aggrecan G1-IGD-G2 Domains Alexa Fluor™ Plus 555-conjugated Antibody

R&D Systems, part of Bio-Techne | Catalog # AF1220AFP555

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AF1220AFP555-100UG
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Key Product Details

Species Reactivity

Human

Applications

Immunohistochemistry, Western Blot, Immunocytochemistry

Label

Alexa Fluor Plus 555 (Excitation = 558 nm, Emission = 572 nm)

Antibody Source

Polyclonal Goat IgG

View all Aggrecan Antibodies »

Product Specifications

Immunogen

Mouse myeloma cell line NS0-derived recombinant human Aggrecan

Specificity

Detects human Aggrecan in direct ELISAs and Western blots.

Clonality

Polyclonal

Host

Goat

Isotype

IgG

Applications

Application
Recommended Usage

Immunocytochemistry

Optimal dilution of this antibody should be experimentally determined.

Immunohistochemistry

Optimal dilution of this antibody should be experimentally determined.

Western Blot

Optimal dilution of this antibody should be experimentally determined.

Formulation, Preparation, and Storage

Formulation

Supplied 0.2 mg/mL in a saline solution containing BSA and Sodium Azide.

Shipping

The product is shipped with polar packs. Upon receipt, store it immediately at the temperature recommended below.

Stability & Storage

Protect from light. Do not freeze. 12 months from date of receipt, 2 to 8 °C as supplied

Background: Aggrecan

Aggrecan, also known as aggrecan 1, chondroitin sulfate proteoglycan, and large aggregating proteoglycan, is encoded by the AGC1 gene with gene aliases of SEDK; CSPG1; MSK16; CSPGCP. As the key component of the cartilage extracellular matrix, aggrecan hydrates the collagen network and provides cartilage with its properties of compressibility and elasticity. Maintenance of aggrecan content is therefore critical to the function of the tissue and aggrecan degradation is an important factor in the erosion of articular cartilage in arthritic diseases (2). The deduced amino acid sequence of human aggrecan core protein consists of 2415 resides and predicts a signal peptide and domains of G1, IGD, G2, KS, CS-1, CS-2, and G3 (3). Two globular domains, G1 and G2, comprise the N-terminus of the proteoglycan and also contain link domains. The third globular domain, G3, corresponds to the C-terminus. The keratan sulfate (KS) and the chondroitin sulfate (CS) attachment domains are between G2 and G3. With KS and CS attached to the 250 kDa core protein, aggrecan monomers exist as a 1,000-2,000 kDa molecule. In addition, aggrecan monomers interact with hyaluronan through their G1 domain, resulting in larger aggregates containing 10-100 aggrecan monomers on a hyaluronan backbone (2).

Aggrecan can be cleaved by MMPs and ADAMTSs at the Asn360-Phe361 and Glu392-Ala393 bond in the IGD (residues are numbered based on Accession # NP_037359), respectively (2). Inhibition of ADATMS4 and ADAMTS5 cleavage prevents aggrecan degradation in osteoarthritic cartilage, while mice with aggrecan resistant to MMP cleavage do not accumulate aggrean and develop normally (2, 4). Consisting of the G1, IGD and G2 domains, rhAggrecan can be used as a protein substrate for MMPs and ADAMTSs and in binding assays involving hyaluronan.

References

  1. Doege. K.J. et al. (1991) J. Biol. Chem. 266:894.
  2. Malfait, A-M. et al. (2002) J. Biol. Chem. 277:22201.
  3. Caterson, B. et al. (2000) Matrix Biol. 19:333.
  4. Little, C.B. et al. (2005) Mol. Cel. Biol. 25:3388.

Alternate Names

ACAN, AGC1, CSPG1, CSPGCP, MSK16, SEDK

Entrez Gene IDs

176 (Human)

Gene Symbol

ACAN

UniProt

NP_037359

Additional Aggrecan Products

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Certificate of Analysis

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Product Specific Notices


This product is provided under an intellectual property license from Life Technologies Corporation. The transfer of this product is conditioned on the buyer using the purchased product solely in research conducted by the buyer, excluding contract research or any fee for service research, and the buyer must not (1) use this product or its components for (a) diagnostic, therapeutic or prophylactic purposes; (b) testing, analysis or screening services, or information in return for compensation on a per-test basis; or (c) manufacturing or quality assurance or quality control, and/or (2) sell or transfer this product or its components for resale, whether or not resold for use in research. For information on purchasing a license to this product for purposes other than as described above, contact Life Technologies Corporation, 5781 Van Allen Way, Carlsbad, CA 92008 USA or outlicensing@thermofisher.com.

For research use only

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