Splice variants of the mouse Tec gene are differentially expressed in vivo

被引：9

作者：

Merkel, AL ^{[1
]}

Atmosukarto, IIC ^{[1
]}

Stevens, K ^{[1
]}

Rathjen, PD ^{[1
]}

Booker, GW ^{[1
]}

机构：

[1] Univ Adelaide, Dept Biochem, Adelaide, SA 5005, Australia

来源：

CYTOGENETICS AND CELL GENETICS | 1999年 / 84卷 / 1-2期

关键词：

D O I：

10.1159/000015240

中图分类号：

Q2 [细胞生物学];

学科分类号：

071009 ; 090102 ;

摘要：

Tec is a cytoplasmic protein tyrosine kinase that participates in the signalling pathways of a broad range of cytokines. Up to five different Tec isoforms have been reported in the literature. We report here the genomic organisation of the mouse Tec gene and the tissue expression pattern of the two predominant transcripts, TecIII and TecIV. The mouse Tec gene consists of 18 exons, spans more than 86 kb, and is 2.6 kb 5' to the gene for Txk, a Tec family member. Comparison of mouse and human Btk, human TXK, and mouse Tec genomic structures shows a high level of conservation of exon/intron boundaries. Compared with TecIV, the TecIII transcript has a 66-bp deletion in the SH3 domain encoding region and is revealed here to arise by alternative splicing of exon 8. We show that both TecIII and TecIV are expressed as early as embryonic day 10.5 in mouse development, as well as in adult and embryonic organs. The ratio of TecIV to TecIII expression is markedly reduced in adult liver and kidney tissues and d16 embryonic limb.

引用

页码：132 / 139

页数：8

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