Regulatory variants of APOBEC3 genes potentially associate with COVID-19 severity in populations with African ancestry

Author:

Zhang Ke,Chen Fang,Shen Hu-Yan,Zhang Ping-Ping,Gao Han,Peng Hong,Luo Yu-Si,Cheng Zhong-Shan

Abstract

AbstractSince November 2019, the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), has caused the worldwide pandemic of the coronavirus disease 2019 (COVID-19), the impact of which is huge to the lives of world populations. Many studies suggested that such situation will continue due to the endless mutations in SARS-CoV-2 genome that result in complexity of the efforts for the control of SARS-CoV-2, since the special enrichment of nucleotide substitution C>U in SARS-CoV-2 sequences were discovered mainly due to the editing by human host factors APOBEC3 genes. The observation of SARS-CoV-2 variants Beta (B.1.351) and Omicron (B.1.1.529) firstly spreading in South Africa promoted us to hypothesize that genetic variants of APOBEC3 special in African populations may be attributed to the higher mutation rate of SARS-CoV-2 variants in Africa. Current study was conducted to search for functional variants of APOBEC3 genes associate with COVID-19 hospitalization in African population. By integrating data from the 1000 Genomes Project, Genotype-Tissue Expression (GTEx), and Host Genetics Initiative (HGI) of COVID-19, we identified potential functional SNPs close to APOBEC3 genes that are associated with COVID-19 hospitalization in African but not with other populations. Our study provides new insights on the potential contribution of APOBEC3 genes on the evolution of SARS-CoV-2 mutations in African population, but further replication is needed to confirm our results.

Funder

Scientific and Technological Innovation Talent Team of Scientific and Technological Department of Guizhou Province, China

Science and Technology Supporting Plan of Scientific and Technological Department of Guizhou Province, China

Publisher

Springer Science and Business Media LLC

Subject

Multidisciplinary

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