Study of a Genetic Variant Causing Antithrombin Deficiency
Author Information
Author(s): Zhang Haiyue, Yue Xinyang, Dai Tenglong, Wu Jun
Primary Institution: Beijing Jishuitan Hospital, Capital Medical University
Hypothesis
The c.964 A>T mutation in the SERPINC1 gene is responsible for antithrombin deficiency in a patient.
Conclusion
The mutation leads to a truncated protein that affects the secretion of antithrombin, resulting in deficiency.
Supporting Evidence
- The proband exhibited a significant reduction in antithrombin levels.
- The mutation was confirmed through genetic testing in the family.
- In vitro studies showed the mutant protein was not secreted effectively.
- 43 out of 143 amino acids deleted by the mutation were highly conserved across species.
Takeaway
A young man had a genetic change that made it hard for his body to produce a protein that prevents blood clots, which can cause serious health problems.
Methodology
The study involved genetic analysis, coagulation screening, and in vitro expression studies using HEK293T cells.
Limitations
The study lacked in vivo animal experiments to further explore the mutation's effects.
Participant Demographics
The study included a 24-year-old male proband and his family members across three generations.
Digital Object Identifier (DOI)
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