A unique variant of a homeobox gene related to Drosophila cut is expressed in mouse testis.

A unique variant of a homeobox gene related to Drosophila cut is expressed in mouse testis.
复制标题

与果蝇切割相关的同源盒基因的独特变体在小鼠睾丸中表达。

DOI:
10.1095/biolreprod55.4.731
复制
发表时间:
1996
影响因子:
3.6
通讯作者:
Igarashi,P
Igarashi,P
中科院分区:
生物学2区
文献类型:
--
作者:
VandenHeuvel,GB;Quaggin,SE;Igarashi,P

文献摘要

参考文献

被引文献

相似文献

果蝇同源盒基因的哺乳动物同源物编码参与组织特异性和发育基因调控的转录抑制子。我们检查了成年小鼠中小鼠切割同源物 (Cux-1) 的表达。在许多体细胞组织中,Cux-1 表达为 13 kb 的转录本。然而,Cux-1 的最高表达是在睾丸中,其中鉴定出独特的 2.4-kb 剪接变体。仅在睾丸中还检测到了 5 kb、6.5 kb 和 8.5 kb 的丰度较低的转录本。 2.4-kbCux-1转录本的核苷酸序列与重叠区域中的13-kb转录本相同,但睾丸特异性转录本编码一种截短的蛋白质,除了与Cut相关的同源域外,该蛋白质仅包含一个Cut重复序列。对无毛症 (at/at) 突变纯合小鼠的研究表明,2.4-kb 转录物在睾丸的生殖细胞中表达。原位杂交证实Cux-1在圆形精子细胞阶段的减数分裂后生殖细胞中瞬时表达。核提取物的免疫印迹分析表明,睾丸特异性 Cux-I 转录物编码 55 kDa 蛋白质。这些结果表明,剪切相关同源框基因的多种产物在睾丸中表达。 Cux-1在睾丸中的高度受限的表达模式表明它可能参与减数分裂后基因表达的调节。
Mammalian homologues of theDrosophilacut homeobox gene encode transcriptional repressors that are involved in tissue- specific and developmental gene regulation. We examined the expression of a murine cut homologue (Cux-1) in the adult mouse. In many somatic tissues,Cux-1was expressed as a 13-kb transcript. However, the highest expression ofCux-1was in the testis, where a unique 2.4-kb splice variant was identified. Less abundant transcripts of 5 kb, 6.5 kb, and 8.5 kb were also detected only in the testis. The nucleotide sequence of the 2.4-kbCux- 1transcript was identical to the 13-kb transcript in the region of overlap, but the testis-specific transcript encoded a truncated protein that contained only one Cut repeat in addition to the Cut-related homeodomain. Studies of mice homozygous for the atrichosis (at/at) mutation suggested that the 2.4-kb transcript was expressed in germ cells in the testis. In situ hybridization verified thatCux-1was transiently expressed in postmeiotic germ cells at the round spermatid stage. Immunoblot analysis of nuclear extracts showed that the testis-specific Cux- I transcripts encoded a 55-kDa protein. These results demonstrate that multiple products of a cut-related homeobox gene are expressed in the testis. The highly restricted pattern of expression ofCux-1in the testis suggests that it may be involved in regulation of postmeiotic gene expression.
DOI: 10.1016/s0021-9258(18)55363-1
发表时间: 1991-09
期刊: The Journal of biological chemistry
影响因子: --
作者:
D. Skalnik;E. Strauss;Stuart H. Orkin
通讯作者: D. Skalnik;E. Strauss;Stuart H. Orkin
在精子发生的早期阶段存在睾丸特异性 H2B (TH2B) 组蛋白基因的阻遏蛋白。
DOI: --
发表时间: 1992
期刊: The Journal of biological chemistry
影响因子: --
作者:
Lim,K;Chae,CB
通讯作者: Chae,CB
小鼠 Hox-1.4 基因的直向同源物和旁系同源物中表达模式和谱系特异性转录物的保守性和分歧。
DOI: 10.1006/dbio.1993.1064
发表时间: 1993
影响因子: 2.7
作者:
Watrin,F;Wolgemuth,DJ
通讯作者: Wolgemuth,DJ
DOI: 10.1073/pnas.91.26.12644
发表时间: 1994-12-20
影响因子: 11.1
作者:
HORAN, GSB;WU, K;BEHRINGER, RR
通讯作者: BEHRINGER, RR
精子发生过程中同源框基因的表达
DOI: --
发表时间: 1991
影响因子: 5.2
作者:
D. Wolgemuth;C. Viviano;F. Watrin
通讯作者: F. Watrin