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Structural highlights

Disease

TGFB1_HUMAN Defects in TGFB1 are the cause of Camurati-Engelmann disease (CE) [MIM:131300; also known as progressive diaphyseal dysplasia 1 (DPD1). CE is an autosomal dominant disorder characterized by hyperostosis and sclerosis of the diaphyses of long bones. The disease typically presents in early childhood with pain, muscular weakness and waddling gait, and in some cases other features such as exophthalmos, facial paralysis, hearing difficulties and loss of vision.^{[1] [2] [3] [4] [5]}

Function

TGFB1_HUMAN Multifunctional protein that controls proliferation, differentiation and other functions in many cell types. Many cells synthesize TGFB1 and have specific receptors for it. It positively and negatively regulates many other growth factors. It plays an important role in bone remodeling as it is a potent stimulator of osteoblastic bone formation, causing chemotaxis, proliferation and differentiation in committed osteoblasts.

References

1. ↑ Kinoshita A, Saito T, Tomita H, Makita Y, Yoshida K, Ghadami M, Yamada K, Kondo S, Ikegawa S, Nishimura G, Fukushima Y, Nakagomi T, Saito H, Sugimoto T, Kamegaya M, Hisa K, Murray JC, Taniguchi N, Niikawa N, Yoshiura K. Domain-specific mutations in TGFB1 result in Camurati-Engelmann disease. Nat Genet. 2000 Sep;26(1):19-20. PMID:10973241 doi:10.1038/79128
2. ↑ Janssens K, Gershoni-Baruch R, Guanabens N, Migone N, Ralston S, Bonduelle M, Lissens W, Van Maldergem L, Vanhoenacker F, Verbruggen L, Van Hul W. Mutations in the gene encoding the latency-associated peptide of TGF-beta 1 cause Camurati-Engelmann disease. Nat Genet. 2000 Nov;26(3):273-5. PMID:11062463 doi:10.1038/81563
3. ↑ Janssens K, ten Dijke P, Ralston SH, Bergmann C, Van Hul W. Transforming growth factor-beta 1 mutations in Camurati-Engelmann disease lead to increased signaling by altering either activation or secretion of the mutant protein. J Biol Chem. 2003 Feb 28;278(9):7718-24. Epub 2002 Dec 18. PMID:12493741 doi:10.1074/jbc.M208857200
4. ↑ McGowan NW, MacPherson H, Janssens K, Van Hul W, Frith JC, Fraser WD, Ralston SH, Helfrich MH. A mutation affecting the latency-associated peptide of TGFbeta1 in Camurati-Engelmann disease enhances osteoclast formation in vitro. J Clin Endocrinol Metab. 2003 Jul;88(7):3321-6. PMID:12843182
5. ↑ Kinoshita A, Fukumaki Y, Shirahama S, Miyahara A, Nishimura G, Haga N, Namba A, Ueda H, Hayashi H, Ikegawa S, Seidel J, Niikawa N, Yoshiura K. TGFB1 mutations in four new families with Camurati-Engelmann disease: confirmation of independently arising LAP-domain-specific mutations. Am J Med Genet A. 2004 May 15;127A(1):104-7. PMID:15103729 doi:10.1002/ajmg.a.20671