TY - CHAP M1 - Book, Section TI - Connective Tissue Disorders A1 - Dhar, Shweta U. A1 - Russo, Melissa A2 - Kline, Mark W. PY - 2018 T2 - Rudolph's Pediatrics, 23e AB - Connective tissue provides form, strength, and support to different parts of the body. It also serves as a medium for cellular transport as well as storage and exchange of nutrients. It is made up of dozens of proteins constituting either the extracellular fibers, amorphous matrix called ground substance, or the cellular network. The most abundant extracellular fibers are composed of the protein collagen, which is also the most abundant protein found in the human body. Pathogenic variants in genes encoding the collagen proteins cause diseases such as Ehlers-Danlos syndrome, Stickler syndrome, and osteogenesis imperfecta. Other extracellular fibers consist of an amorphous protein called elastin, which is ensheathed in strong microfibrils composed of the protein fibrillin. Pathogenic variants in the gene encoding fibrillin-1 are associated with Marfan syndrome. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/19 UR - accesspediatrics.mhmedical.com/content.aspx?aid=1182931401 ER -