1. The Molecular Characteristics of the FAM13A Gene and the Role of Transcription Factors ACSL1 and ASCL2 in Its Core Promoter Region
- Author
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Rajwali Khan, Yu Zhang, Linsen Zan, Chengcheng Liang, Anning Li, Sihu Wang, Xiaoyu Wang, Sayed Haidar Abbas Raza, and Guohua Wang
- Subjects
0301 basic medicine ,preadipocytes ,promoter ,Activating transcription factor ,Promoter ,Biology ,ACSL1 ,Marker gene ,Molecular biology ,03 medical and health sciences ,carcass quality ,030104 developmental biology ,0302 clinical medicine ,FAM13A ,030220 oncology & carcinogenesis ,ASCL2 ,Genetics ,Gene family ,Electrophoretic mobility shift assay ,Gene ,Transcription factor ,Peptide sequence ,Genetics (clinical) - Abstract
The gene family with sequence similarity 13 member A (FAM13A) has recently been identified as a marker gene in insulin sensitivity and lipolysis. In this study, we first analyzed the expression patterns of this gene in different tissues of adult cattle and then constructed a phylogenetic tree based on the FAM13A amino acid sequence. This showed that subcutaneous adipose tissue had the highest expression in all tissues except lung tissue. Then we summarized the gene structure. The promoter region sequence of the gene was successfully amplified, and the &minus, 241/+54 region has been identified as the core promoter region. The core promoter region was determined by the unidirectional deletion of the 5&rsquo, flanking promoter region of the FAM13A gene. Based on the bioinformatics analysis, we examined the dual luciferase activity of the vector constructed by the mutation site, and the transcription factors ACSL1 and ASCL2 were found as transcriptional regulators of FAM13A. Moreover, electrophoretic mobility shift assay (EMSA) further validated the regulatory role of ACSL1 and ASCL2 in the regulation of FAM13A. ACSL1 and ASCL2 were finally identified as activating transcription factors. Our results provide a basis for the function of the FAM13A gene in bovine adipocytes in order to improve the deposition of fat deposition in beef cattle muscle.
- Published
- 2019
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