RRC ID |
42548
|
著者 |
Tao RH, Kawate H, Ohnaka K, Ishizuka M, Hagiwara H, Takayanagi R.
|
タイトル |
Opposite effects of alternative TZF spliced variants on androgen receptor.
|
ジャーナル |
Biochem Biophys Res Commun
|
Abstract |
We previously demonstrated that testicular zinc-finger protein (TZF) was a corepressor of the androgen receptor (AR). In the present study, we further showed that TZF-L, an alternative spliced variant of TZF, enhanced transactivation function of AR. Deletion analysis of TZF-L revealed that its N-terminus, which almost corresponded to that of TZF, but not its C-terminus was able to interact with AR. Additional analysis suggested that TZF and TZF-L were able to form both homodimers and heterodimers. TZF-L inhibited the homodimer formation of TZF and the intranuclear dot formation of TZF. We propose that in the unique regulation system of AR-mediated transactivation, two spliced isoforms of TZF act as coactivator and corepressor, respectively.
|
巻・号 |
341(2)
|
ページ |
515-21
|
公開日 |
2006-3-10
|
DOI |
10.1016/j.bbrc.2005.12.213
|
PII |
S0006-291X(06)00045-3
|
PMID |
16446156
|
MeSH |
Alternative Splicing*
Amino Acid Motifs
Animals
COS Cells
Cell Line, Tumor
Chlorocebus aethiops
Dimerization
Gene Deletion
Genes, Reporter
Humans
Immunoblotting
Immunoprecipitation
Mice
Microscopy, Confocal
Models, Biological
NIH 3T3 Cells
Plasmids / metabolism
Protein Isoforms
Protein Structure, Tertiary
Receptors, Androgen / metabolism*
Repressor Proteins / chemistry
Repressor Proteins / metabolism*
Transcriptional Activation
Transfection
|
IF |
2.985
|
引用数 |
10
|
WOS 分野
|
BIOPHYSICS
BIOCHEMISTRY & MOLECULAR BIOLOGY
|
リソース情報 |
ヒト・動物細胞 |
COS-7(RCB0539) |