Hrob-KO Mouse

HROB, also known as C17orf53, is an OB - fold - containing factor with a crucial role in DNA repair and replication. It is involved in the homologous recombination (HR) pathway and DNA inter - strand crosslink (ICL) repair. HROB recruits the MCM8 - MCM9 helicase to DNA damage sites, promoting DNA synthesis during HR and DNA unwinding downstream of MCM8 - 9 loading and ring formation on single - stranded DNA [2,1,3,4]. This function is essential for maintaining genomic integrity, tumor suppression, and gamete formation [2].

Mice with targeted mutations in Hrob are infertile due to germ cell depletion and show phenotypes consistent with prophase I meiotic arrest, indicating HROB's importance in meiosis [2]. In humans, variants in HROB are associated with premature ovarian insufficiency, suggesting its role in ovarian function [5,6].

In summary, HROB is vital for DNA repair and replication processes, especially in homologous recombination. Its function in maintaining genomic integrity and role in meiosis and ovarian function are revealed through mouse models and human genetic studies. Understanding HROB may provide insights into diseases related to DNA damage and infertility.