Ddx25-flox 基因敲除小鼠

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产品名称

Ddx25-flox 基因敲除小鼠

产品编号

S-CKO-10252

品系全称

C57BL/6JCya-Ddx25em1flox/Cya

品系背景

C57BL/6JCya

品系编号

CKOCMP-30959-Ddx25-B6J-VA

品系状态

使用本品系发表的文献需注明: Ddx25-flox 基因敲除小鼠 mice (Strain S-CKO-10252) were purchased from Cyagen.
交付类型
周龄
性别
基因型
数量
cKO小鼠库模型

基本信息

基因研究概述

质控标准

基因
基因全称
DEAD box helicase 25
基因别称
GRTH
染色体号
Chr 9 (Mouse)
转录本 ID
NCBI: NM_013932 | Ensembl: ENSMUST00000034612
修饰方式
条件性基因敲除
靶向范围
Exon 5~6
敲除长度
~1.0 kb
品系说明
该品系是基于策略设计时的数据库信息制作而成,建议您在购买前查询最新的数据库和相关文献,以获取最准确的表型信息。
表型提示
MGI:1353582Homozygous null mice display male infertility, arrest of spermatogenesis at step 8, abnormal Leydig cells, and increased germ cell apoptosis in males.
Ddx25基因,也称为GRTH(gonadotropin-regulated testicular RNA helicase),是DEAD-box蛋白家族的一员。DEAD-box蛋白是一类在细胞内广泛表达的RNA解旋酶,参与多种RNA代谢过程,如RNA的剪接、转运、翻译和降解。GRTH在生殖细胞中特异性表达,主要存在于精母细胞和圆形精细胞中。它对精子的形成至关重要,因为它是精子发生过程中的一个转录后调控因子,能够调节与精子发生相关的基因表达[1]。GRTH通过其RNA解旋酶和ATPase活性,在精子发生过程中发挥重要作用。GRTH不仅能够解开RNA的二级结构,还能够与特定的mRNA结合,并将其从细胞核转运到细胞质中的染色质体,在那里等待翻译[2]。GRTH还可以与多核糖体结合,调节精子发生相关基因的翻译[3]。GRTH的表达受到促性腺激素和雄激素的调控[4]。在促性腺激素的作用下,GRTH在Leydig细胞中的表达会被上调,而在精母细胞中,其表达则受到雄激素的调控[5]。GRTH的突变与男性不育有关,因为它会导致精母细胞的发育停滞,导致精子无法形成[6]。此外,GRTH的表达还受到miRNA的调控,miRNA可以与GRTH的mRNA结合,抑制其翻译或促进其降解[7]。GRTH的研究对于深入理解精子发生的分子机制,以及为男性不育的治疗提供新的思路和策略具有重要意义。

参考文献:
1. Kherraf, Zine-Eddine, Cazin, Caroline, Bouker, Amine, Arnoult, Christophe, Ray, Pierre F. 2022. Whole-exome sequencing improves the diagnosis and care of men with non-obstructive azoospermia. In American journal of human genetics, 109, 508-517. doi:10.1016/j.ajhg.2022.01.011. https://pubmed.ncbi.nlm.nih.gov/35172124/
2. Tsai-Morris, Chon-Hwa, Koh, Eitetsu, Sheng, Yi, Namiki, Mikio, Dufau, Maria L. 2007. Polymorphism of the GRTH/DDX25 gene in normal and infertile Japanese men: a missense mutation associated with loss of GRTH phosphorylation. In Molecular human reproduction, 13, 887-92. doi:. https://pubmed.ncbi.nlm.nih.gov/17848414/
3. Tsai-Morris, Chon-Hwa, Sheng, Yi, Gutti, Ravi K, Tang, Pei-Zhong, Dufau, Maria L. 2009. Gonadotropin-regulated testicular RNA helicase (GRTH/DDX25): a multifunctional protein essential for spermatogenesis. In Journal of andrology, 31, 45-52. doi:10.2164/jandrol.109.008219. https://pubmed.ncbi.nlm.nih.gov/19875492/
4. Tsai-Morris, Chon-Hwa, Sheng, Yi, Gutti, Ravi, Pickel, James, Dufau, Maria L. . Gonadotropin-regulated testicular RNA helicase (GRTH/DDX25) gene: cell-specific expression and transcriptional regulation by androgen in transgenic mouse testis. In Journal of cellular biochemistry, 109, 1142-7. doi:10.1002/jcb.22493. https://pubmed.ncbi.nlm.nih.gov/20108248/
5. Sheng, Yi, Tsai-Morris, Chon-Hwa, Gutti, Ravi, Maeda, Yuji, Dufau, Maria L. 2006. Gonadotropin-regulated testicular RNA helicase (GRTH/Ddx25) is a transport protein involved in gene-specific mRNA export and protein translation during spermatogenesis. In The Journal of biological chemistry, 281, 35048-56. doi:. https://pubmed.ncbi.nlm.nih.gov/16968703/
6. Kavarthapu, Raghuveer, Tsai-Morris, Chon-Hwa, Fukushima, Masato, Pickel, James, Dufau, Maria L. 2013. A 5'-flanking region of gonadotropin-regulated testicular RNA helicase (GRTH/DDX25) gene directs its cell-specific androgen-regulated gene expression in testicular germ cells. In Endocrinology, 154, 2200-7. doi:10.1210/en.2012-2230. https://pubmed.ncbi.nlm.nih.gov/23546600/
7. Dufau, Maria L, Tsai-Morris, Chon-Hwa. 2007. Gonadotropin-regulated testicular helicase (GRTH/DDX25): an essential regulator of spermatogenesis. In Trends in endocrinology and metabolism: TEM, 18, 314-20. doi:. https://pubmed.ncbi.nlm.nih.gov/17889551/