Single nucleotide polymorphism and bioinformatics analysis of DQA2 gene in yak

Single nucleotide polymorphism (SNP) of DQA2 gene in yak was analyzed via genomic DNA pooled amplification and directly sequencing, and further the influence of SNP sites on the secondary structures of mRNA and protein of DQA2 gene were predicted and analyzed by bioinformatic software. The results s...

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Main Authors: LI Zhuo, CHEN Lang, JIANG Tao, LIU Lixia, ZHANG Li, WANG Rui, LI Yaodong
Format: Article
Language:English
Published: Zhejiang University Press 2020-06-01
Series:浙江大学学报. 农业与生命科学版
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Online Access:https://www.academax.com/doi/10.3785/j.issn.1008-9209.2019.06.211
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author LI Zhuo
CHEN Lang
JIANG Tao
LIU Lixia
ZHANG Li
WANG Rui
LI Yaodong
author_facet LI Zhuo
CHEN Lang
JIANG Tao
LIU Lixia
ZHANG Li
WANG Rui
LI Yaodong
author_sort LI Zhuo
collection DOAJ
description Single nucleotide polymorphism (SNP) of DQA2 gene in yak was analyzed via genomic DNA pooled amplification and directly sequencing, and further the influence of SNP sites on the secondary structures of mRNA and protein of DQA2 gene were predicted and analyzed by bioinformatic software. The results showed that the polymorphism of DQA2 gene in yak was high, and 14 SNP sites were detected. Only one SNP site was located on the intron 1, while 13 SNP sites were located on exon regions. Nine SNP sites were missense mutations, which resulted in changes in corresponding amino acids. The results of secondary structure prediction showed that eight SNP sites increased the stability of secondary structure of mRNA, and four SNP sites reduced the stability of secondary structure of mRNA. The SNP sites of missense mutation changed the secondary structure of DQA2 protein in yak. The proportion of random coil was the highest, followed by extended strand, and β-turn was the lowest among components of protein secondary structure before and after mutation. The results can provide basic data for further research on yak major histocompatibility complex (MHC) gene and theoretical basis for screening the molecular markers of yak disease resistance.
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series 浙江大学学报. 农业与生命科学版
spelling doaj-art-66e76b8d9e374a90a66c7ceccce8c16f2025-08-01T03:53:23ZengZhejiang University Press浙江大学学报. 农业与生命科学版1008-92092097-51552020-06-014637638210.3785/j.issn.1008-9209.2019.06.21110089209Single nucleotide polymorphism and bioinformatics analysis of DQA2 gene in yakLI ZhuoCHEN LangJIANG TaoLIU LixiaZHANG LiWANG RuiLI YaodongSingle nucleotide polymorphism (SNP) of DQA2 gene in yak was analyzed via genomic DNA pooled amplification and directly sequencing, and further the influence of SNP sites on the secondary structures of mRNA and protein of DQA2 gene were predicted and analyzed by bioinformatic software. The results showed that the polymorphism of DQA2 gene in yak was high, and 14 SNP sites were detected. Only one SNP site was located on the intron 1, while 13 SNP sites were located on exon regions. Nine SNP sites were missense mutations, which resulted in changes in corresponding amino acids. The results of secondary structure prediction showed that eight SNP sites increased the stability of secondary structure of mRNA, and four SNP sites reduced the stability of secondary structure of mRNA. The SNP sites of missense mutation changed the secondary structure of DQA2 protein in yak. The proportion of random coil was the highest, followed by extended strand, and β-turn was the lowest among components of protein secondary structure before and after mutation. The results can provide basic data for further research on yak major histocompatibility complex (MHC) gene and theoretical basis for screening the molecular markers of yak disease resistance.https://www.academax.com/doi/10.3785/j.issn.1008-9209.2019.06.211yak<italic>DQA2</italic> genesingle nucleotide polymorphism sitebioinformatics
spellingShingle LI Zhuo
CHEN Lang
JIANG Tao
LIU Lixia
ZHANG Li
WANG Rui
LI Yaodong
Single nucleotide polymorphism and bioinformatics analysis of DQA2 gene in yak
浙江大学学报. 农业与生命科学版
yak
<italic>DQA2</italic> gene
single nucleotide polymorphism site
bioinformatics
title Single nucleotide polymorphism and bioinformatics analysis of DQA2 gene in yak
title_full Single nucleotide polymorphism and bioinformatics analysis of DQA2 gene in yak
title_fullStr Single nucleotide polymorphism and bioinformatics analysis of DQA2 gene in yak
title_full_unstemmed Single nucleotide polymorphism and bioinformatics analysis of DQA2 gene in yak
title_short Single nucleotide polymorphism and bioinformatics analysis of DQA2 gene in yak
title_sort single nucleotide polymorphism and bioinformatics analysis of dqa2 gene in yak
topic yak
<italic>DQA2</italic> gene
single nucleotide polymorphism site
bioinformatics
url https://www.academax.com/doi/10.3785/j.issn.1008-9209.2019.06.211
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