Abstract
Proteoglycans were extracted from bovine tracheal cartilage by high-speed homogenization, the use of dissociative solvents being avoided. The homogenate was fractionated by gel chromatography, sucrose-density-gradient centrifugation and ion-exchange chromatography. A previously unrecognized protein, cartilage matrix protein, was identified by sodium dodecyl sulphate/polyacrylamide-gel electrophoresis. It cofractionated with the proteoglycans in all systems, indicating an interaction. The cartilage matrix protein-proteoglycan complex was dissociated by treatment with 4M-guanidinium chloride. The complex again formed when the guanidine was removed. The cartilage matrix protein has a mol.wt. of more than 200000. On reduction it yields subunits with a mol.wt. of approx. 60000.
Full text
PDF
Images in this article
Selected References
These references are in PubMed. This may not be the complete list of references from this article.
- BITTER T., MUIR H. M. A modified uronic acid carbazole reaction. Anal Biochem. 1962 Oct;4:330–334. doi: 10.1016/0003-2697(62)90095-7. [DOI] [PubMed] [Google Scholar]
- Baker J., Caterson B. The purification and cyanogen bromide cleavage of the 'link proteins' from cartilage proteoglycan. Biochem Biophys Res Commun. 1977 Jul 11;77(1):1–10. doi: 10.1016/s0006-291x(77)80157-5. [DOI] [PubMed] [Google Scholar]
- Caterson B., Baker J. The interaction of link proteins with proteoglycan monomers in the absence of hyaluronic acid. Biochem Biophys Res Commun. 1978 Feb 14;80(3):496–503. doi: 10.1016/0006-291x(78)91596-6. [DOI] [PubMed] [Google Scholar]
- Hardingham T. E., Muir H. Binding of oligosaccharides of hyaluronic acid to proteoglycans. Biochem J. 1973 Dec;135(4):905–908. doi: 10.1042/bj1350905. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Hardingham T. E., Muir H. The specific interaction of hyaluronic acid with cartillage proteoglycans. Biochim Biophys Acta. 1972 Sep 15;279(2):401–405. doi: 10.1016/0304-4165(72)90160-2. [DOI] [PubMed] [Google Scholar]
- Hascall V. C., Heinegård D. Aggregation of cartilage proteoglycans. I. The role of hyaluronic acid. J Biol Chem. 1974 Jul 10;249(13):4232–4241. [PubMed] [Google Scholar]
- Hascall V. C., Heinegård D. Aggregation of cartilage proteoglycans. II. Oligosaccharide competitors of the proteoglycan-hyaluronic acid interaction. J Biol Chem. 1974 Jul 10;249(13):4242–4249. [PubMed] [Google Scholar]
- Hascall V. C., Sajdera S. W. Proteinpolysaccharide complex from bovine nasal cartilage. The function of glycoprotein in the formation of aggregates. J Biol Chem. 1969 May 10;244(9):2384–2396. [PubMed] [Google Scholar]
- Heinegård D. Extraction, fractionation and characterization of proteoglycans from bovine tracheal cartilage. Biochim Biophys Acta. 1972 Nov 28;285(1):181–192. doi: 10.1016/0005-2795(72)90190-0. [DOI] [PubMed] [Google Scholar]
- Heinegård D., Hascall V. C. Aggregation of cartilage proteoglycans. 3. Characteristics of the proteins isolated from trypsin digests of aggregates. J Biol Chem. 1974 Jul 10;249(13):4250–4256. [PubMed] [Google Scholar]
- Keiser H., Shulman H. J., Sandson J. I. Immunochemistry of cartilage proteoglycan. Immunodiffusion and gel-electrophoretic studies. Biochem J. 1972 Jan;126(1):163–169. doi: 10.1042/bj1260163. [DOI] [PMC free article] [PubMed] [Google Scholar]
- MALAWISTA I., SCHUBERT M. Chondromucoprotein: new extraction method and alkaline degradation. J Biol Chem. 1958 Jan;230(1):535–544. [PubMed] [Google Scholar]
- Neville D. M., Jr Molecular weight determination of protein-dodecyl sulfate complexes by gel electrophoresis in a discontinuous buffer system. J Biol Chem. 1971 Oct 25;246(20):6328–6334. [PubMed] [Google Scholar]