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Cited by 194

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Calcitonin/calcitonin gene-related peptide transcription unit: tissue-specific expression involves selective use of alternative polyadenylation sites.

Open access
Amara, S G, Evans, R M, Rosenfeld, M G·1984·Molecular and Cellular Biology

Abstract

Different 3' coding exons in the rat calcitonin gene are used to generate distinct mRNAs encoding either the hormone calcitonin in thyroidal C-cells or a new neuropeptide referred to as calcitonin gene-related peptide in neuronal tissue, indicating the RNA processing regulation is one strategy used in tissue-specific regulation of gene expression in the brain. Although the two mRNAs use the same transcriptional initiation site and have identical 5' terminal sequences, their 3' termini are distinct. The polyadenylation sites for calcitonin and calcitonin gene-related peptide mRNAs are located at the end of the exons 4 and 6, respectively. Termination of transcription after the calcitonin exon does not dictate the production of calcitonin mRNA, because transcription proceeds through both calcitonin and calcitonin gene-related peptide exons irrespective of which mRNA is ultimately produced. In isolated nuclei, both polyadenylation sites appear to be utilized; however, the proximal (calcitonin) site is preferentially used in nuclei from tissues producing calcitonin mRNA. These data suggest that the mechanism dictating production of each mRNA involves the selective use of alternative polyadenylation sites.

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Metadata

Authors
Amara, S. G., Evans, R. M., & Rosenfeld, M. G.
Venue
Molecular and Cellular Biology
Published
1984-10
Volume
4
Issue
10
Pages
2151-2160
ISSN
  • 0270-7306 (ISSN-L)
  • 1098-5549
OpenAlex
W1799462851
Cited by
194
References
1
FWCI
10.33
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Calcitonin/calcitonin gene-related peptide transcription unit: tissue-specific expression involves selective use of alternative polyadenylation sites. https://app.cochat.ai/papers/10.1128/mcb.4.10.2151
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Amara, S. G., Evans, R. M., & Rosenfeld, M. G. (1984). Calcitonin/calcitonin gene-related peptide transcription unit: tissue-specific expression involves selective use of alternative polyadenylation sites. Molecular and Cellular Biology. https://doi.org/10.1128/mcb.4.10.2151

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