China Animal Husbandry and Veterinary Medicine ›› 2022, Vol. 49 ›› Issue (10): 3693-3703.doi: 10.16431/j.cnki.1671-7236.2022.10.001

• Biotechnology • Previous Articles     Next Articles

Cloning and Bioinformatics Analysis of TRAIL Gene in Buffalo

XU Yuanyuan1,2, MO Xia1, HUANG Chenqian1, FENG Chao1,2, LU Xingrong1,2, MA Xiaoya1,2, YANG Chunyan1,2, ZHENG Haiying1,2, SHANG Jianghua1,2   

  1. 1. Guangxi Key Laboratory of Buffalo Genetics, Breeding and Reproduction, Buffalo Research Insitute, Chinese Academy of Agricultural Sciences, Nanning 530001, China;
    2. Key Laboratory of Buffalo Genetics, Breeding and Reproduction Techonlogy, Ministry of Agriculture and Rural Affairs, Nanning 530001, China
  • Received:2022-03-14 Online:2022-10-05 Published:2022-09-30

Abstract: 【Objective】 The purpose of this study was to clone and analyze the CDS sequence of tumor necrosis factor (TNF)-related apoptosis-inducing ligand (TRAIL) gene in buffalo,and its coding protein was analyzed by bioinformatics,so as to prepare for the study of effects of TRAIL protein on the development of follicle,proliferation and apoptosis of granulosa cells in buffalo ovary.【Method】 The CDS sequence of TRAIL gene in buffalo was cloned by RT-PCR.The similarity of nucleotide and amino acid sequences of TRAIL gene were analyzed,the phylogenetic tree was constructed,and the structure and function of TRAIL protein were analyzed by bioinformatics softwares.【Result】 The CDS sequence of TRAIL gene in buffalo was successfully cloned,with a length of 864 bp,encoding 287 amino acids.The similarity of TRAIL gene between buffalo and Bos mutus,Bos taurus,Sus scrofa, Capra hircus, Ovis aries,Equus caballus,Pan paniscus, Homo spiens,Mus musculus were 99.2%,99.3%,95.9%,96.3%,84.7%,84.8%,81.3%,81.3% and 70.0%,respectively.The phylogenetic tree results showed that buffalo had the closest genetic relationship with Bos mutus and Bos taurus,and the farthest genetic relationship with Mus musculus.Amino acid sequence alignment results showed that the transmembrane domain and TNF domain were highly conserved among different species.TRAIL protein was a hydrophilic protein and had a transmembrane domain,the 140-285 amino acids were TNF region.There was no glycosylation site and signal peptide of TRAIL protein,which were mainly located in the cytoplasm,and had 29 phosphorylation sites.The secondary structure of TRAIL protein was mainly random coil,accounting for about 51.57%,followed by extended chain (24.39%) and alpha helix (24.04%).The tertiary structure of TRAIL protein was consistent with the secondary structure,and the similarity with the model protein TRAIL protein in human was 75.53%.【Conclusion】 In this experiment,the CDS sequence of TRAIL gene was cloned in buffalo,with a size of 864 bp and encoding 287 amino acids.The buffalo had the closest relationship with Bos mutus and Bos taurus,and the TRAIL protein transmembrane domain and TNF domain were highly conserved among different species,which might be related to its function.

Key words: buffalo; TRAIL gene; cloning; bioinformatics analysis

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