Related Experiment Video
Updated: Jul 8, 2025

In Vivo Functional Study of Disease-associated Rare Human Variants Using Drosophila
Published on: August 20, 2019
ATAD3A gene variations in a family with Harel-Yoon syndrome
Yi Zheng1, Xinyu Yu2, Ting Zhang3
1Department of Genetic and Metabolism, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou 310052, China. 22318424@zju.edu.cn.
Abstract:
An 11-day-old female neonate was admitted for cough with mouth foaming and feeding difficulties. The laboratory results indicated hyperlactatemia, elevated markers of myocardial injury and inflammation, and high levels of acylcarnitine octanoylcarnitine and decanoylcarnitine in tandem mass spectrometry. Ultrasonography and MRI suggested cardiac insufficiency and hypertrophic cardiomyopathy. Whole exome sequencing showed that both the proband and her elderly sister had a compound heterozygous variant of c.1492dup (p.T498Nfs*13) and c.1376T>C (p.F459S) in the ATAD3A gene, inherited from their father and mother, respectively. The diagnosis of Harel-Yoon syndrome was confirmed. The proband and her sister were born with clinical manifestations of metabolic acidosis, hyperlactatemia, feeding difficulties, elevated markers of myocardial injury as well as cardiac insufficiency, and both died in early infancy.
Related Concept Videos
Translation
Translation Produces the Building Blocks of Life
Proteins are...
Genetic Lingo
Human Genetics
The complex relationship between genetics and psychology is observable through common biological components such...
Alternative RNA Splicing
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
Lethal Alleles
Lucien Cuénot discovered lethal alleles in 1905 while studying the inheritance of coat color in mice. The agouti gene is responsible for the color of the coat in mice. This gene codes for an agouti-signaling protein, which is responsible for melanin distribution in mammals. The wild-type allele gives rise to gray-brown coat color in mice, while the mutant allele gives rise to yellow coat color. In addition to coat color, the agouti gene is associated with the yellow...
Incomplete Dominance

