NDLI: Characterization of a human TSPY promoter

Content Provider	Springer Nature Link
Author	Skawran, Britta Schubert, Stephanie Dechend, Frank Vervoorts, Jörg Nayernia, Karim Lüscher, Bernhard Schmidtke, Jörg
Copyright Year	2005
Abstract	Human TSPY is a candidate oncogene and is supposed to function as a proliferation factor during spermatogenesis. It is the only mammalian protein-coding gene known to be organized as a tandem repeat gene family. It is expressed at highest level in spermatogonia and to a lower amount in primary spermatocytes. To characterize the human TSPY promoter we used the luciferase reporter system in a mouse spermatogonia derived cell line (GC-1spg) and in a GC-4spc cell line, that harbour prophase spermatocytes of the preleptotene and early pachytene stage. We isolated a 1303 bp fragment of the 5′-flanking region of exon 1 that shows significant promoter activity in GC-1spg and reduced activity in GC-4spc cells. In order to gain further insight into the organization of the TSPY-promoter, stepwise truncations of the putative promoter sequence were performed. The resulting fragments were cloned into the pGL3-vector and analysed for reporter gene activity in the murine germ cell lines GC-1spg and GC-4spc, leading to the characterization of a core promoter (−159 to −1), an enhancing region (−673 to −364) and a silencing region (−1262 to −669). Database research for cis-active elements yielded two putative SOX-like binding sites in the enhancing region and reporter gene activity was drastically reduced when three nucleotides of the AACAAT SOX core sequence were mutated. Our findings strongly suggest that testis-specific expression of human TSPY is mediated by Sox proteins. (Mol Cell Biochem 276: 159–167, 2005)
Starting Page	159
Ending Page	167
Page Count	9
File Format	PDF
ISSN	03008177
Journal	Molecular and Cellular Biochemistry
Volume Number	276
Issue Number	1-2
e-ISSN	15734919
Language	English
Publisher	Kluwer Academic Publishers
Publisher Date	2005-01-01
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	TSPY SOX promoter luciferase regulation testis Cardiology Medical Biochemistry Oncology Biochemistry
Content Type	Text
Resource Type	Article
Subject	Cell Biology Medicine Clinical Biochemistry Molecular Biology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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