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Adenylate kinase phosphate energy shuttle underlies energetic communication in flagellar axonemes

Science China(Life Sciences) 2024年第8期67卷 1697-1714页

作者： Huan Wu Yanman Zhang Yuqian Li Shuya Sun Jintao Zhang Qingsong Xie Yue Dong Shushu Zhou Xuan Sha Kuokuo Li Jinyi Chen Xin Zhang Yang Gao Qunshan Shen Guanxiong Wang Xiaomin Zha Zongliu Duan Dongdong Tang Chuan Xu Hao Geng Mingrong Lv Yuping Xu Ping Zhou Zhaolian Wei Rong Hua Yunxia Cao Mingxi Liu Xiaojin He Reproductive Medicine Center Department of Obstetrics and GynecologyThe First Affiliated Hospital of Anhui Medical UniversityHefei 230022China State Key Laboratory of Reproductive Medicine and Offspring Health Department of Histology and EmbryologySchool of Basic Medical SciencesNanjing Medical UniversityNanjing 210029China State Key Laboratory of Reproductive Medicine and Offspring Health The Affiliated Taizhou People’s Hospital of Nanjing Medical UniversityTaizhou School of Clinical MedicineNanjing Medical UniversityNanjing 211166China Reproductive Medicine Center Department of Obstetrics and GynecologyShanghai General HospitalShanghai Jiao Tong University School of MedicineShanghai 200080China State Key Laboratory of Reproductive Medicine and Offspring Health Clinical Center of Reproductive MedicineThe First Affiliated Hospital of Nanjing Medical UniversityNanjing 210029China NHC Key Laboratory of Study on Abnormal Gametes and Reproductive Tract(Anhui Medical University) Hefei 230032China Key Laboratory of Population Health Across Life Cycle(Anhui Medical University) Ministry of Education of the People’s Republic of ChinaHefei 230032China Anhui Province Key Laboratory of Reproductive Health and Genetics Hefei 230032China Biopreservation and Artificial Organs Anhui Provincial Engineering Research CenterAnhui Medical UniversityHefei 230032China

The complexities of energy transfer mechanisms in the flagella of mammalian sperm flagella have been intensively investigated and demonstrate significant diversity across *** shuttles,particularly adenylate kinase(ak)and creatine kinase(CK),are pivotal in the efficient transfer of intracellular ATP,showing distinct tissue-and ***,the expression profiles of ak and CK were investigated in mice and found to fall into four subgroups,of which Subgroup III aks were observed to be unique to the male reproductive system and conserved across *** ak8 and ak9 were found to be indispensable to male reproduction after analysis of an infertile male *** mouse models showed that ak8 and ak9 were central to promoting sperm *** combined with mass spectrometry revealed that ak8 and ak9 interact with the radial spoke(RS)of the *** of various human and mouse sperm samples with substructural damage,including the presence of multiple RS subunits,showed that the head of radial spoke 3 acts as an adapter for ak9 in the flagellar *** an ATP probe together with metabolomic analysis,it was found that ak8 and ak9 cooperatively regulated ATP transfer in the axoneme,and were concentrated at sites associated with energy consumption in the *** findings indicate a novel function for RS beyond its structural role,namely,the regulation of ATP *** conclusion,the results expand the functional spectrum of ak proteins and suggest a fresh model regarding ATP transfer within mammalian flagella.

关键词： adenylate kinase Subgroup III aks ak8 ak9 male infertility ATP transfer radial spoke

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