The beta-phaseolin gene is flanked by matrix attachment regions
نویسندگان
چکیده
منابع مشابه
Genomic imprinting controls matrix attachment regions in the Igf2 gene.
Genomic imprinting at the Igf2/H19 locus originates from allele-specific DNA methylation, which modifies the affinity of some proteins for their target sequences. Here, we show that AT-rich DNA sequences located in the vicinity of previously characterized differentially methylated regions (DMRs) of the imprinted Igf2 gene are conserved between mouse and human. These sequences have all the chara...
متن کاملA DNA-binding element for a steroid receptor-binding factor is flanked by dual nuclear matrix DNA attachment sites in the c-myc gene promoter.
The receptor-binding factor (RBF) for the avian oviduct progesterone (Pg) receptor (PR) has previously been shown to be a unique 10-kDa nuclear matrix protein that generates high affinity PR-binding sites on avian DNA. This paper describes the use of Southwestern blot and DNA gel shift analyses with RBF protein to identify a minimal 54-base pair RBF-binding element in the matrix-associated regi...
متن کاملbeta-Phaseolin gene activation is a two-step process: PvALF- facilitated chromatin modification followed by abscisic acid-mediated gene activation.
We have shown previously that a rotationally and translationally positioned nucleosome is responsible for the absence of transcriptional expression from the phaseolin (phas) gene promoter in leaf tissue and that the repressive chromatin structure is disrupted on transcriptional activation during embryogenesis. To investigate how the chromatin structure is modified, we ectopically expressed PvAL...
متن کاملCis-regulation of microRNA expression by scaffold/matrix-attachment regions
microRNAs (miRNAs) spatio-temporally modulate gene expression; however, very little is known about the regulation of their expression. Here, we hypothesized that the well-known cis-regulatory elements of gene expression, scaffold/matrix-attachment regions (MARs) could modulate miRNA expression. Accordingly, we found MARs to be enriched in the upstream regions of miRNA genes. To determine their ...
متن کاملGenome-wide in silico mapping of scaffold/matrix attachment regions in Arabidopsis suggests correlation of intragenic scaffold/matrix attachment regions with gene expression.
We carried out a genome-wide prediction of scaffold/matrix attachment regions (S/MARs) in Arabidopsis. Results indicate no uneven distribution on the chromosomal level but a clear underrepresentation of S/MARs inside genes. In cases where S/MARs were predicted within genes, these intragenic S/MARs were preferentially located within the 5'-half, most prominently within introns 1 and 2. Using Ara...
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ژورنال
عنوان ژورنال: The Plant Journal
سال: 1994
ISSN: 0960-7412,1365-313X
DOI: 10.1046/j.1365-313x.1994.06030413.x