Identification of the TSSK4 Alternative Spliceosomes and Analysis of the Function of the TSSK4 Protein in Yak (Bos grunniens)

文献类型： 外文期刊

第一作者： Wang, Xingdong

作者： Wang, Xingdong;Pei, Jie;Xiong, Lin;Guo, Shaoke;Cao, Mengli;Kang, Yandong;Bao, Pengjia;Wu, Xiaoyun;Chu, Min;Liang, Chunnian;Yan, Ping;Guo, Xian;Wang, Xingdong;Pei, Jie;Xiong, Lin;Guo, Shaoke;Cao, Mengli;Kang, Yandong;Bao, Pengjia;Wu, Xiaoyun;Chu, Min;Liang, Chunnian;Yan, Ping;Guo, Xian

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关键词： yak; TSSK4; alternative spliceosomes; GST pull-down; LC-MS; MS; testis

期刊名称：ANIMALS （ 影响因子：3.231； 五年影响因子：3.312 ）

ISSN： 2076-2615

年卷期： 2022 年 12 卷 11 期

页码：

收录情况： SCI

摘要： Simple Summary In mammals, the testis-specific serine/threonine kinase (TSSK) is essential for spermatogenesis and male fertility. This study aimed to analyze the possible alternative spliceosomes of the TSSK4 gene in the yak testis tissue using PCR amplification and cloning techniques. A total of six alternative spliceosomes were obtained, of which there were only two alternative spliceosomes in the yak testis before sexual maturity and four alternative spliceosomes in the yak testis after sexual maturity. In mammals, the testis-specific serine/threonine kinase (TSSK) is essential for spermatogenesis and male fertility. TSSK4 belongs to the family of the testis-specific serine/threonine-protein kinase (TSSK), with a crucial role in spermatogenesis. This study aimed to analyze the variable spliceosome of the TSSK4 gene in the yak for understanding the regulatory function of the TSSK4 spliceosome in yak testis development using PCR amplification and cloning techniques. The GST pull-down was used for pulling down the protein interacting with TSSK4, and then the protein interacting with TSSK4 was identified using LC-MS/MS. The results of the PCR amplification demonstrated multiple bands of the TSSK4 gene in the yak. The cloning and sequencing yielded a total of six alternative spliceosomes, which included only two alternative spliceosomes before sexual maturity and four alternative spliceosomes after sexual maturity. The sub-cells of the alternative spliceosomes were found to localize in the nucleus before sexual maturity and in the cytoplasm after sexual maturity. The LC-MS/MS analysis of the alternative spliceosome with the highest expression after sexual maturity yielded a total of 223 interacting proteins. The enrichment analysis of the 223 interacting proteins revealed these proteins participate in biological processes, cell composition, and molecular functions. The KEGG analysis indicated that the TSSK4-interacting protein participates in the estrogen signaling pathways, tight junctions, endoplasmic reticulum protein processing, and other signaling pathways. This study cloned the six alternative spliceosomes of the TSSK4 gene laying the foundation for studying the function of each spliceosome in the future.

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