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Journal of Assisted Reproduction and Genetics

, Volume 36, Issue 9, pp 1957–1962 | Cite as

Novel compound heterozygous mutations in WEE2 causes female infertility and fertilization failure

  • Xiaopei Zhou
  • Lixia Zhu
  • Meiqi Hou
  • Yanling Wu
  • Zhou Li
  • Jiarui Wang
  • Zhenxing Liu
  • Dazhi Zhang
  • Lei JinEmail author
  • Xianqin ZhangEmail author
Genetics
  • 106 Downloads

Abstract

Purpose

To identify the disease-causing gene in a family with female infertility and fertilization failure.

Methods

Whole-exome sequencing and Sanger sequencing were used to identify the disease-causing gene in a female with infertility and fertilization failure. Subcellular localization and western blot analysis were used to check the effect of mutations.

Results

We identified novel compound heterozygous mutations c.598C>T (p.Arg200Ter) and c.1319G>C (p.Trp440Ser) in WEE2 gene in a female with infertility and fertilization failure. The p.Arg200Ter mutant WEE2 gene produce truncated protein and mainly located in the nucleus, the same as the wild protein, while the p.Trp440Ser mutant WEE2 proteins are located in the nucleus and cytoplasm and the expression level of p.Trp440Ser mutant WEE2 protein is reduced significantly compared with that of wild-type WEE2.

Conclusions

We discovered novel compound heterozygous mutations c.598C>T (p.Arg200Ter) and c.1319G>C (p.Trp440Ser) in WEE2 gene in a female whose oocytes could not form pronucleus after intracytoplasmic sperm injection (ICSI). Moreover, mutations in WEE2 gene affect the normal function of WEE2 proteins and cause fertilization failure.

Keywords

Female infertility WEE2 Mutation Intracytoplasmic sperm injection 

Notes

Acknowledgments

We thank Lei Wang and Qing Sang in Fudan University for their gift of WEE2 plasmid and the family members for their enthusiastic participation in this study.

Funding information

This work was supported by grants from the National Natural Science Foundation of China (81000079, 81170165, 81870959 to X.Z.) and supported by Program for HUST Academic Frontier Youth Team.

Compliance with ethical standards

This study was approved by the ethics committee of Huazhong University of Science and Technology. All participants in the study agreed with informed consent to participate in the investigation.

Competing interests

The authors declare that they have no competing interests.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Xiaopei Zhou
    • 1
  • Lixia Zhu
    • 2
  • Meiqi Hou
    • 1
  • Yanling Wu
    • 1
  • Zhou Li
    • 2
  • Jiarui Wang
    • 1
  • Zhenxing Liu
    • 1
  • Dazhi Zhang
    • 1
  • Lei Jin
    • 2
    Email author
  • Xianqin Zhang
    • 1
    Email author
  1. 1.Key Laboratory of Molecular Biophysics of the Ministry of Education, College of Life Science and Technology and Center for Human Genome ResearchHuazhong University of Science and TechnologyWuhanChina
  2. 2.Reproductive Medicine Center, Tongji HospitalTongji Medical College, Huazhong University of Science and TechnologyWuhanChina

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