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Seminal vesicle secretory proteins 4/5/6 There are seven major proteins involved in murine seminal vesicle secretion (SVS1-7). Mouse Svs2-Svs6 genes evolved by gene duplication and belong to the same gene family. This domain family is found in SVS4/5 and 6. SVS4 is a basic, thermostable, secretory protein synthesized by rat seminal vesicle epithelium under strict androgen transcriptional control. This protein has potent nonspecies-specific immunomodulatory, anti-inflammatory, and pro-coagulant activities that have been shown to be located in the N-terminal region of Svs4 (fragment 1-70). The N-terminal segment has a high amino-acid sequence similarity with the C-terminal segment 34-66 of uteroglobin, a rabbit steroid-inducible, cytokine-like, multifunctional, secreted protein. Furthermore, SVS4 acts as a sperm capacitation inhibitor, by interacting with SVS3 and SVS2. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",