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Ubiquitin specific peptidase 9, Y-linked (fat facets-like, Drosophila), also known as USP9Y, is an enzyme which in humans is encoded by the USP9Ygene.[5] It is required for sperm production. This enzyme is a member of the peptidase C19 family and is similar to ubiquitin-specific proteases, which cleave the ubiquitin moiety from ubiquitin-fused precursors and ubiquitinylated proteins.
The USP9Y gene is found on the azoospermia factor (AZF) region on the Y chromosome. Men who have impaired or no sperm production often have a deletion in the AZF region, especially in the USP9Y gene, and it was thought that USP9Y was necessary for sperm production. However, a man and his father with a USP9Y deletion who could produce sperm were recently reported. The corresponding gene is present but inactive in chimpanzees and bonobos.[6][7]
D'Andrea A, Pellman D (1999). "Deubiquitinating enzymes: a new class of biological regulators". Critical Reviews in Biochemistry and Molecular Biology. 33 (5): 337–352. doi:10.1080/10409239891204251. PMID9827704.
Sun C, Skaletsky H, Birren B, Devon K, Tang Z, Silber S, etal. (December 1999). "An azoospermic man with a de novo point mutation in the Y-chromosomal gene USP9Y". Nature Genetics. 23 (4): 429–432. doi:10.1038/70539. PMID10581029. S2CID12286008.
Foresta C, Ferlin A, Moro E (2000). "Deletion and expression analysis of AZFa genes on the human Y chromosome revealed a major role for DBY in male infertility". Human Molecular Genetics. 9 (8): 1161–1169. doi:10.1093/hmg/9.8.1161. PMID10767340.
Dada R, Gupta NP, Kucheria K (2003). "Cryptorchidism and AZF microdeletion". Asian Journal of Andrology. 4 (2): 148. PMID12085107.
Dada R, Gupta NP, Kucheria K (2003). "AZF microdeletions associated with idiopathic and non-idiopathic cases with cryptorchidism and varicocele". Asian Journal of Andrology. 4 (4): 259–263. PMID12508125.
Richard SM, Knuutila S, Peltomäki P, Bianchi MS, Bianchi NO (April 2003). "Y chromosome instability in lymphoproliferative disorders". Mutation Research. 525 (1–2): 103–107. doi:10.1016/S0027-5107(03)00007-1. PMID12650910.
Hopps CV, Mielnik A, Goldstein M, Palermo GD, Rosenwaks Z, Schlegel PN (August 2003). "Detection of sperm in men with Y chromosome microdeletions of the AZFa, AZFb and AZFc regions". Human Reproduction. 18 (8). Oxford, England: 1660–1665. doi:10.1093/humrep/deg348. PMID12871878.
Lee KH, Song GJ, Kang IS, Kim SW, Paick JS, Chung CH, etal. (2003). "Ubiquitin-specific protease activity of USP9Y, a male infertility gene on the Y chromosome". Reproduction, Fertility, and Development. 15 (1–2): 129–133. doi:10.1071/RD03002. PMID12895410.