Tissue-specific promoter utilisation of the kallikrein-related peptidase genes, KLK5 and KLK7, and cellular localisation of the encoded proteins suggest roles in exocrine pancreatic function

Dong, Ying, Matigian, Nick, Harvey, Tracey J., Samaratunga, Hemamali, Hooper, John D. and Clements, Judith A. (2008) Tissue-specific promoter utilisation of the kallikrein-related peptidase genes, KLK5 and KLK7, and cellular localisation of the encoded proteins suggest roles in exocrine pancreatic function. Biological Chemistry, 389 2: 99-109. doi:10.1515/BC.2008.013

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Author Dong, Ying
Matigian, Nick
Harvey, Tracey J.
Samaratunga, Hemamali
Hooper, John D.
Clements, Judith A.
Title Tissue-specific promoter utilisation of the kallikrein-related peptidase genes, KLK5 and KLK7, and cellular localisation of the encoded proteins suggest roles in exocrine pancreatic function
Journal name Biological Chemistry   Check publisher's open access policy
ISSN 1431-6730
1437-4315
Publication date 2008-02-01
Year available 2008
Sub-type Article (original research)
DOI 10.1515/BC.2008.013
Open Access Status File (Publisher version)
Volume 389
Issue 2
Start page 99
End page 109
Total pages 11
Place of publication Berlin, Germany
Publisher Walter de Gruyter GmbH
Collection year 2008
Language eng
Subject 1303 Specialist Studies in Education
Abstract Tissue kallikrein (kallikrein 1) was first identified in pancreas and is the namesake of the kallikrein-related peptidase (KLK) family. KLK1 and the other 14 members of the human KLK family are encoded by 15 serine protease genes clustered at chromosome 19q13.4. Our Northern blot analysis of 19 normal human tissues for expression of KLK4 to KLK15 identified pancreas as a common expression site for the gene cluster spanning KLK5 to KLK13, as well as for KLK15 which is located adjacent to KLK1. Consistent with previous reports detailing the ability of KLK genes to generate organ- and disease-specific transcripts, detailed molecular and in silico analyses indicated that KLK5 and KLK7 generate transcripts in pancreas variant from those in skin or ovary. Consistently, we identified in the promoters of these KLK genes motifs which conform with consensus binding sites for transcription factors conferring pancreatic expression. In addition, immunohistochemical analysis revealed predominant localisation of KLK5 and KLK7 in acinar cells of the exocrine pancreas, suggesting roles for these enzymes in digestion. Our data also support expression patterns derived from gene duplication events in the human KLK cluster. These findings suggest that, in addition to KLK1, other related KLK enzymes will function in the exocrine pancreas.
Keyword Kallikrein
Pancreas
Promoter analysis
Tissue specific
Transcription factors
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Health and Rehabilitation Sciences Publications
 
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