ArticleHistochemistry and cell biology2014
Comprehensive characterization of protein 4.1 expression in epithelium of large intestine.
Article in Histochemistry and cell biology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 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
6 citing papers in PubMed, 7 citations in OpenAlex.
- Medicinal Plant Leaf Extract From Sage and Lemon Verbena Promotes Intestinal Immunity and Barrier Function in Gilthead Seabream (Frontiers in immunology · 2021Article
- 4.1N-Mediated Interactions and Functions in Nerve System and Cancer.Frontiers in molecular biosciences · 2021Review
- Epithelial-specific isoforms of protein 4.1R promote adherens junction assembly in maturing epithelia.The Journal of biological chemistry · 2020Article
- Expression of Protein 4.1 Family in Breast Cancer: Database Mining for 4.1 Family Members in Malignancies.Medical science monitor : international medical journal of experimental and clinical research · 2019Article
- [Construction of a stable 4.1R gene knockout cell model in RAW264.7 cells using CRISPR/Cas9 technique].Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2017Article
- The Histochemistry and Cell Biology pandect: the year 2014 in review.Histochemistry and cell biology · 2015Review
Corrections and comments
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Authors and funding
11 authors at 4 institutions in 3 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The protein 4.1 family consists of four members, 4.1R, 4.1N, 4.1B and 4.1G, each encoded by a distinct gene. All 4.1 mRNAs undergo extensive alternative splicing. Functionally, they usually serve as adapters that link actin-based cytoskeleton to plasma membrane proteins. It has been reported that 4.1 proteins are expressed in most animal cell types and tissues including epithelial cells and epithelial tissues. However, the expression of 4.1 proteins in large intestine has not been well characterized. In the present study, we performed RT-PCR, western blot and immunohistochemistry analysis to characterize the transcripts, the protein expression and cellular localization of 4.1 proteins in the epithelia of mouse large intestine. We show that multiple transcripts derive from each gene, including eight 4.1R isoforms, four 4.1N isoforms, four 4.1B isoforms and six 4.1G isoforms. However, at the protein level, only one or two major bands were detected, implying that not all transcripts are translated and/or the proteins do not accumulate at detectable levels. Immunohistochemistry revealed that 4.1R, 4.1N and 4.1B are all expressed at the lateral membrane as well as cytoplasm of epithelial cells, suggesting a potentially redundant role of these proteins. Our findings not only provide new insights into the structure of protein 4.1 genes but also lay the foundation for future functional studies.
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Registered trials
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