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Cloning and transcriptional analysis of the promoter of the human type 2 desmocollin gene (DSC2)

Cloning and transcriptional analysis of the promoter of the human type 2 desmocollin gene (DSC2)
Cloning and transcriptional analysis of the promoter of the human type 2 desmocollin gene (DSC2)
The desmocollins, together with the desmogleins, are members of the cadherin family and constitute the adhesive proteins of the desmosome type of cell-cell junction. Here we describe a study of the promoter of the human form of the DSC2 gene which is the equivalent of the first isoform expressed in the developing mouse embryo and that has the most widespread tissue distribution in epithelia and also in desmosome-bearing non-epithelial tissues. Analysis of the 5? upstream region by DNA sequencing and Southern blotting suggested that it contained a CpG island, and a major site of transcription initiation 201 bp upstream of the translation start site was found by RNase protection and primer extension. There were no obvious CCAAT or TATA boxes present. Analysis of 1.9 kb upstream of the translation start site revealed consensus binding sites for transcription factors including Ap-2 and Sp-1, and motifs common to the promoters of other epithelially expressed genes such as keratin 14 and the desmoglein genes DSG1 and DSG3. Deletion derivatives defined a promoter of 525 bp which was active in epithelial cells and in mouse blastocysts with an intact epithelium. This promoter showed reduced expression in non-epithelial cells.

cell junction, desmosome, cadherin, genomic clone, reporter gene, mouse embryo
0378-1119
237-247
Marsden, Mark D.
cb2474f4-a5c7-4281-995f-8a4fed012e06
Collins, Jane E.
be0e66f1-3036-47fa-9d7e-914c48710ba4
Greenwood, Matthew D.
f5b6ecd9-d48a-439c-a1ca-c6aa8fab9a2a
Adams, Michael J.
24139550-3f5a-4908-94f2-f377f3ee6d1e
Fleming, Tom P.
2abf761a-e5a1-4fa7-a2c8-12e32d5d4c03
Magee, Anthony I.
5bff1fec-47d6-427d-9bc4-3c2a2c570d53
Buxton, Roger S.
7fdbfec0-690b-48a9-9f15-a33b33ff37c0
Marsden, Mark D.
cb2474f4-a5c7-4281-995f-8a4fed012e06
Collins, Jane E.
be0e66f1-3036-47fa-9d7e-914c48710ba4
Greenwood, Matthew D.
f5b6ecd9-d48a-439c-a1ca-c6aa8fab9a2a
Adams, Michael J.
24139550-3f5a-4908-94f2-f377f3ee6d1e
Fleming, Tom P.
2abf761a-e5a1-4fa7-a2c8-12e32d5d4c03
Magee, Anthony I.
5bff1fec-47d6-427d-9bc4-3c2a2c570d53
Buxton, Roger S.
7fdbfec0-690b-48a9-9f15-a33b33ff37c0

Marsden, Mark D., Collins, Jane E., Greenwood, Matthew D., Adams, Michael J., Fleming, Tom P., Magee, Anthony I. and Buxton, Roger S. (1997) Cloning and transcriptional analysis of the promoter of the human type 2 desmocollin gene (DSC2). Gene, 186 (2), 237-247. (doi:10.1016/S0378-1119(96)00715-9). (PMID:9074502)

Record type: Article

Abstract

The desmocollins, together with the desmogleins, are members of the cadherin family and constitute the adhesive proteins of the desmosome type of cell-cell junction. Here we describe a study of the promoter of the human form of the DSC2 gene which is the equivalent of the first isoform expressed in the developing mouse embryo and that has the most widespread tissue distribution in epithelia and also in desmosome-bearing non-epithelial tissues. Analysis of the 5? upstream region by DNA sequencing and Southern blotting suggested that it contained a CpG island, and a major site of transcription initiation 201 bp upstream of the translation start site was found by RNase protection and primer extension. There were no obvious CCAAT or TATA boxes present. Analysis of 1.9 kb upstream of the translation start site revealed consensus binding sites for transcription factors including Ap-2 and Sp-1, and motifs common to the promoters of other epithelially expressed genes such as keratin 14 and the desmoglein genes DSG1 and DSG3. Deletion derivatives defined a promoter of 525 bp which was active in epithelial cells and in mouse blastocysts with an intact epithelium. This promoter showed reduced expression in non-epithelial cells.

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More information

Published date: 28 February 1997
Keywords: cell junction, desmosome, cadherin, genomic clone, reporter gene, mouse embryo

Identifiers

Local EPrints ID: 179837
URI: http://eprints.soton.ac.uk/id/eprint/179837
ISSN: 0378-1119
PURE UUID: 2b862391-f57c-4e79-99de-b299bdd7bfa1

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Date deposited: 04 Apr 2011 15:12
Last modified: 14 Mar 2024 02:50

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Contributors

Author: Mark D. Marsden
Author: Jane E. Collins
Author: Matthew D. Greenwood
Author: Michael J. Adams
Author: Tom P. Fleming
Author: Anthony I. Magee
Author: Roger S. Buxton

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