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Isolation and characterization of a novel transcript embedded within HIRA, a gene deleted in DiGeorge syndrome.

Abstract：

:We have isolated a few cDNAs from different human tissues, transcribed from the first intron of HIRA, a gene deleted in the DiGeorge syndrome. These cDNAs are produced by an intronic gene (22k48) which is transcribed by the HIRA opposite strand and is itself arranged in exons and subjected to alternative splicing. The longest continuum cDNA sequence we obtained is 3.6 kb long and contains 3 different exons and 2 introns. 22k48 cDNA is composed of several tandemly arranged repeated elements (Alu, LINEs, CAn) surrounding a unique sequence. In situ hybridization showed the presence of 22k48 RNA in the cytoplasm of CNS and PNS neurons. 22k48 RNA is able to bind cytoplasmic proteins in the range of 45 to 60 kDa. 22k48 is a new member of the small group of genes that are transcribed but not translated, and its haploinsufficiency could contribute to the pathogenesis of the DiGeorge syndrome.

journal_name

Mol Genet Metab

journal_title

Molecular genetics and metabolism

authors

Pizzuti A,Novelli G,Ratti A,Amati F,Bordoni R,Mandich P,Bellone E,Conti E,Bengala M,Mari A,Silani V,Dallapiccola B

doi

10.1006/mgme.1999.2868

subject

Has Abstract

pub_date

1999-07-01 00:00:00

pages

227-35

issue

3

eissn

1096-7192

issn

1096-7206

pii

S1096-7192(99)92868-8

journal_volume

67

pub_type

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