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Male reproductive proteomes provide basis for studying gene products and its involvement or regulation in sperm physiology. Here, a comparative study between these proteomes was performed to find potential proteins and functions associated with human sperm maturation. Seven reproductive proteomes associated with human sperm physiology were integrated. Gene ontology analysis were performed using DAVID and Panther tools to determine enriched functions. Total of 270 proteins overlapped between epididymal, prostatic milieu and sperm proteome were thought to be candidate proteins involved in sperm maturation, and they showed enriched functions of proteasomal protein catabolic process and protein folding. 34 epididymal milieu proteins and 274 prostatic milieu proteins were contributed to the composition of seminal fluids proteome. Literatures have confirmed the involvements in sperm maturation of many of these proteins The spatial expressions of 24 epididymal milieu proteins involved in chaperone and antioxidant activity were authenticated by real-time RT-PCR. These proteins may serve as candidate molecules for future studies of sperm maturation and male infertility.


Liu Fu-Jun, Shen Xiao-Fang. Comparative analysis of human reproductive proteomes identifies candidate proteins of sperm maturation. Molecular biology reports. 2012 Dec;39(12):10257-63

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PMID: 23053934

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