Transcriptional and Posttranscriptional Silencing of Rodent α1(I) Collagen by a Homologous Transcriptionally Self-Silenced Transgene
Transcriptional and Posttranscriptional Silencing of Rodent α1(I) Collagen by a Homologous Transcriptionally Self-Silenced Transgene
复制标题
同源转录自沉默转基因对啮齿动物 α1(I) 胶原的转录和转录后沉默
DOI:
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发表时间:
1999
影响因子:
5.3
通讯作者:
H. Zarbl
中科院分区:
文献类型:
--
作者:
M. Bahramian;H. Zarbl
ABSTRACT Transient transfection of rodent fibroblasts with plasmids carrying a full-size pro-α1(I) collagen gene (pWTC1) results in rapid reduction of the endogenous transcripts by >90%, while the transgene mRNA is undetectable. Using deletion constructs, two adjacent 5′ noncoding regions of the gene are identified as causing transcriptional silencing of the endogene in normal and v-fos-transformed cells but not in nontumorigenic revertants, which show partial relief from v-fos transformation-induced α1(I) gene suppression. The 3′ end of the transgene carries an additional element(s), causing posttranscriptional silencing of the endogene in all cells including the revertant. Data indicate that the transgenes are transcriptionally self-silenced. Genome-integrated transgenes that are transcriptionally active also allow expression of the endogene, suggesting gene activation by chromosomal factors missing in pWTC1. Silencing is not regulated by antisense RNA. Silencing of the endogenous pro-α1(I) collagen gene is not linked to the level of transgene expression.
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DOI:
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发表时间:
1988
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Bornstein,P;McKay,J
通讯作者:
McKay,J
DOI:
10.1073/pnas.93.24.13914
发表时间:
1996
影响因子:
11.1
作者:
Magis,W;Fiering,S;Groudine,M;Martin,DI
通讯作者:
Martin,DI
影响因子:
8
作者:
J. V. Van Amsterdam;Y. Wang;R. Sullivan;H. Zarbl
通讯作者:
J. V. Van Amsterdam;Y. Wang;R. Sullivan;H. Zarbl
DOI:
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发表时间:
1990
期刊:
Cell growth & differentiation : the molecular biology journal of the American Association for Cancer Research
影响因子:
--
作者:
Hoemann,CD;Zarbl,H
通讯作者:
Zarbl,H
DOI:
--
发表时间:
1989
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Lichtler,A;Stover,ML;Angilly,J;Kream,B;Rowe,DW
通讯作者:
Rowe,DW