Exogenous Dp71 is a dominant negative competitor of dystrophin in skeletal muscle

Leibovitz S, Meshorer A, Fridman Y, Wieneke S, Jockusch H, Yaffe D, Nudel U (2002)
NEUROMUSCULAR DISORDERS 12(9): 836-844.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
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Autor*in
Leibovitz, S; Meshorer, A; Fridman, Y; Wieneke, S; Jockusch, HaraldUniBi; Yaffe, D; Nudel, U
Abstract / Bemerkung
Dystrophin, the protein which is absent or non-functional in Duchenne muscular dystrophy, consists of four main domains: an N-terminal actin binding domain, a rod shaped domain of spectrin-like repeats, a cysteine-rich domain and a unique C-terminal domain. In muscle, dystrophin forms a linkage between the cytoskeletal actin and a group of membrane proteins (dystrophin associated proteins). The N-terminal domain binds to the cytoskeletal actin and the association with the dystrophin associated proteins is mediated mainly by the cysteine-rich and C-terminal domains of dystrophin. The dystrophin gene also encodes two isoforms of non-muscle dystrophins and a number of smaller products consisting of the two C-terminal domains with different extensions into the spectrin-like repeat domain. Dp71, which consist of the C-terminal and the cysteine-rich domains of dystrophin, is the major product of the gene in all non-muscle tissues tested so far, but it is absent in differentiated skeletal muscle. In an attempt to understand the functions of Dp71, we produced transgenic mice over-expressing this protein in several tissues. The highest levels of exogeneous Dp71 were detected in skeletal muscle, in association with the sarcolemma. This resulted in muscle damage similar to that found in mice which lack dystrophin. The data indicates that Dp71 competes with dystrophin for the binding to the dystrophin associated proteins. Since Dp71 lacks the actin binding domain, it cannot form the essential linkage between the dystrophin associated proteins complex and the cytoskeleton. (C) 2002 Elsevier Science B.V. All rights reserved.
Stichworte
kinase; creatine; Duchenne muscular dystrophy; transgenic mice; Dp71; dystrophin associated proteins
Erscheinungsjahr
2002
Zeitschriftentitel
NEUROMUSCULAR DISORDERS
Band
12
Ausgabe
9
Seite(n)
836-844
ISSN
0960-8966
Page URI
https://pub.uni-bielefeld.de/record/1613113

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Leibovitz S, Meshorer A, Fridman Y, et al. Exogenous Dp71 is a dominant negative competitor of dystrophin in skeletal muscle. NEUROMUSCULAR DISORDERS. 2002;12(9):836-844.
Leibovitz, S., Meshorer, A., Fridman, Y., Wieneke, S., Jockusch, H., Yaffe, D., & Nudel, U. (2002). Exogenous Dp71 is a dominant negative competitor of dystrophin in skeletal muscle. NEUROMUSCULAR DISORDERS, 12(9), 836-844. https://doi.org/10.1016/S0960-8966(02)00141-4
Leibovitz, S, Meshorer, A, Fridman, Y, Wieneke, S, Jockusch, Harald, Yaffe, D, and Nudel, U. 2002. “Exogenous Dp71 is a dominant negative competitor of dystrophin in skeletal muscle”. NEUROMUSCULAR DISORDERS 12 (9): 836-844.
Leibovitz, S., Meshorer, A., Fridman, Y., Wieneke, S., Jockusch, H., Yaffe, D., and Nudel, U. (2002). Exogenous Dp71 is a dominant negative competitor of dystrophin in skeletal muscle. NEUROMUSCULAR DISORDERS 12, 836-844.
Leibovitz, S., et al., 2002. Exogenous Dp71 is a dominant negative competitor of dystrophin in skeletal muscle. NEUROMUSCULAR DISORDERS, 12(9), p 836-844.
S. Leibovitz, et al., “Exogenous Dp71 is a dominant negative competitor of dystrophin in skeletal muscle”, NEUROMUSCULAR DISORDERS, vol. 12, 2002, pp. 836-844.
Leibovitz, S., Meshorer, A., Fridman, Y., Wieneke, S., Jockusch, H., Yaffe, D., Nudel, U.: Exogenous Dp71 is a dominant negative competitor of dystrophin in skeletal muscle. NEUROMUSCULAR DISORDERS. 12, 836-844 (2002).
Leibovitz, S, Meshorer, A, Fridman, Y, Wieneke, S, Jockusch, Harald, Yaffe, D, and Nudel, U. “Exogenous Dp71 is a dominant negative competitor of dystrophin in skeletal muscle”. NEUROMUSCULAR DISORDERS 12.9 (2002): 836-844.

11 Zitationen in Europe PMC

Daten bereitgestellt von Europe PubMed Central.

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