Abstract
To explore the characteristics of SLCO1B1/SLCO1B3 gene variants among children with Rotor syndrome (RS). Four children who were admitted to the Department of Hepatology of Hunan Children's Hospital between January 2019 and January 2022 were selected as the study subjects. Trio-whole exome sequencing was carried out for the four families, and gel electrophoresis was used to verify an insertional variant of long-interspersed element-1 (LINE-1). Genetic testing has identified three variants of the SLCO1B1 gene, including c.1738C>T (p.R580*), c.757C>T (p.R253*) and c.1622A>C (p.Q541P), and two variants of the SLCO1B3 gene, including c.481+22insLINE-1 and c.1747+1G>A among the children. Three of them were found to harbor homozygous variants of the SLCO1B1/SLCO1B3 genes, and one has harbored compound heterozygous variants. Sanger sequencing confirmed the existence of all variants, and gel electrophoresis has confirmed the existence of the LINE-1 insertional variant of about 6 kb within intron 6 of the SLCO1B3 gene in all children. The pathogenesis of the RS among the four children may be attributed to the variants of the SLCO1B1/SLCO1B3 genes. The LINE-1 insertion variant of the SLCO1B3 gene may be common among Chinese RS patients.
Published Version
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Schedule a callMore From: Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics
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