Raver1 is an integral component of muscle contractile elements
Raver1 is an integral component of muscle contractile elements
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Raver1是肌肉收缩元件的组成部分
DOI:
10.1007/s00441-006-0322-1
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发表时间:
2007
影响因子:
3.6
通讯作者:
Illenberger S
中科院分区:
文献类型:
--
作者:
Zieseniss A;Schroeder U;Buchmeier S;Schoenenberger CA;van den Heuvel J;Jockusch BM;Illenberger S
Raver1, a ubiquitously expressed protein, was originally identified as a ligand for metavinculin, the muscle-specific isoform of the microfilament-associated protein vinculin. The protein resides primarily in the nucleus, where it colocalises and may interact with polypyrimidine-tract-binding protein, which is involved in alternative splicing processes. During skeletal muscle differentiation, raver1 translocates to the cytoplasm and eventually targets the Z-line of sarcomeres. Here, it colocalises with metavinculin, vinculin and alpha-actinin, all of which have biochemically been identified as raver1 ligands. To obtain more information about the potential role of raver1 in muscle structure and function, we have investigated its distribution and fine localisation in mouse striated and smooth muscle, by using three monoclonal antibodies that recognise epitopes in different regions of the raver1 protein. Our immunofluorescence and immunoelectron-microscopic results indicate that the cytoplasmic accumulation of raver1 is not confined to skeletal muscle but also occurs in heart and smooth muscle. Unlike vinculin and metavinculin, cytoplasmic raver1 is not restricted to costameres but additionally represents an integral part of the sarcomere. In isolated myofibrils and in ultrathin sections of skeletal muscle, raver1 has been found concentrated at the I-Z-I band. A minor fraction of raver1 is present in the nuclei of all three types of muscle. These data indicate that, during muscle differentiation, raver1 might link gene expression with structural functions of the contractile machinery of muscle.
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影响因子:
4.8
作者:
S. Witt;A. Zieseniss;U. Fock;B. Jockusch;S. Illenberger
通讯作者:
S. Illenberger
影响因子:
4
作者:
E. Morris;A. Fulton
通讯作者:
A. Fulton
DOI:
10.1152/nips.01413.2002
发表时间:
2003-02-01
期刊:
NEWS IN PHYSIOLOGICAL SCIENCES
影响因子:
--
作者:
Jockusch, BM;Hüttelmaier, S;Illenberger, S
通讯作者:
Illenberger, S
DOI:
10.1016/s0021-9258(17)40409-1
发表时间:
1977
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
R. Zak;A. Martin;G. Prior;M. Rabinowitz
通讯作者:
M. Rabinowitz
DOI:
10.1083/jcb.153.2.413
发表时间:
2001-04-16
期刊:
The Journal of cell biology
影响因子:
--
作者:
Bang ML;Mudry RE;McElhinny AS;Trombitás K;Geach AJ;Yamasaki R;Sorimachi H;Granzier H;Gregorio CC;Labeit S
通讯作者:
Labeit S