CFAP57 and Infertility: Emerging genomic evidence has elucidated pathogenic variants contributing to MMAF-related infertility, including dynein axonemal heavy chain (DNAH) family members (e.g., DNAH1, DNAH2, DNAH6, DNAH7, DNAH8, DNAH10 DNAH12 and DNAH17) [3–9]; Cilia and flagella associated protein (CFAP) family members (e.g., CFAP43, CFAP44, CFAP47, CFAP57, CFAP58, CFAP61, CFAP65, CFAP69, CFAP70, CFAP91, CFAP135 and CFAP251) [6, 9–17]; Coiled-coil domain-containing (CCDC) protein family members (e.g., CCDC34, CCDC39, CCDC42, CCDC63, CCDC113, CCDC172 and CCDC189) [9, 18–22].