See Figure 19-36 in: Alberts, Bruce, et al. Molecular Biology of the Cell. 4th ed. New York: Garland Publishing. 2002 Image may be viewed online at the NIH's PubMed Bookshelf. http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=books Aggrecan aggregate Keratin An aggrecan aggregate from fetal bovine cartilage14 Image removed due to copyright considerations. See Figure 19-36 in: Alberts, Bruce, et al. Molecular Biology of the Cell. 4th ed. New York: Garland Publishing, 2002. Image may be viewed online at the NIH's PubMed Bookshelf. An aggrecan aggregate from fetal bovine cartilage. http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=Books