Characterization of a bidirectional promoter shared between two human genes related to aging:: SIRT3 and PSMD13

被引：73

作者：

Bellizzi, D. ^{[1
]}

Dato, S. ^{[1
]}

Cavalcante, P. ^{[1
]}

Covello, G. ^{[1
]}

Di Cianni, F. ^{[1
]}

Passarino, G. ^{[1
]}

Rose, G. ^{[1
]}

De Benedictis, G. ^{[1
]}

机构：

[1] Univ Calabria, Dept Cell Biol, I-87030 Arcavacata Di Rende, Italy

来源：

GENOMICS | 2007年 / 89卷 / 01期

关键词：

SIRT3; PSMD13; bidirectional promoter; human longevity;

D O I：

10.1016/j.ygeno.2006.09.004

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The human SIRT3 gene contains an intronic VNTR enhancer whose variability is correlated with life span. The SIRT3 5' flanking region encompasses the PSMD13 gene encoding the p40.5 regulator subunit of the 26S proteasome. Proteasome is a multicatalytic proteinase whose function declines with aging. SIRT3 and PSMD13. are linked in a head-to-head configuration (788-bp intergenic region). The molecular configuration of two genes that are both related to aging prompted us to search for shared regulatory mechanisms between them. Transfection experiments carried out in HeLa cells by deletion mutants of the PSMD13-SIRT3 intergenic region showed a complex pathway of coregulation acting in both directions. Furthermore, linkage disequilibrium (LD) analyses carried out in a sample of 710 subjects (18-108 years of age) screened for A2163IG (markerof PSMD13), and for G477T and VNTRintron5 (markers of SIRT3), revealed high LD, with significantly different PSMD13-SIRT3 haplotype pools between samples of centenarians and younger people. (c) 2006 Elsevier Inc. All rights reserved.

引用

页码：143 / 150

页数：8

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