ArticleGene expression1999
Far upstream regulatory elements enhance position-independent and uterus-specific expression of the murine alpha1(I) collagen promoter in transgenic mice.
Article in Gene expression, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
34 citing papers in PubMed, 62 citations in OpenAlex.
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- Article
Corrections and comments
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
Abstract
The stage- and tissue-specific expression of many eukaryotic genes is regulated by cis-regulatory elements, some of which are located in proximity to the start site of transcription whereas others have been identified at considerable distances. In previous studies we have identified far upstream DNase I-hypersensitive sites in the murine alpha1(I) collagen (Col1a1) gene, which may play a role in the regulation of this abundantly expressed gene. Here we have cloned several of these sites into reporter gene constructs containing the Col1a1 promoter driving the green fluorescent protein (GFP) reporter gene and tested their possible functions in transfection experiments and transgenic mice. In transient and stable transfections none of the hypersensitive sites had a significant effect on Col1a1 promoter activity, indicating that they do not contain a classical transcriptional enhancer. In transgenic animals one element located at -18 to -19.5 kb enhanced the position-independent activity of the linked Col1a1 promoter and may be part of a locus control region. Another element located at -7 to -8 kb specifically enhanced reporter gene expression in the uteri of transgenic mice, suggesting that it contains a novel transcriptional enhancer that may be involved in the regulation of type I collagen expression in tissue remodeling in the uterus during the estrous cycle. Our studies also demonstrate the versatility of the GFP reporter gene for use in transgenic animals because it can be analyzed in live animals, whole mount embryos, histological thin sections, or primary cell cultures, and it can be quantified very sensitively in tissue or cell extracts using a fluorometer.
Indexed as
Identifiers
10634317PMC6157370W2434775463What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.