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Testis-expressed protein 19 (TEX19)
- Target
- TEX19
- Molecular classification
- Other (mammalian-specific protein, not a receptor, enzyme, transporter, ion channel, or transcription factor)
01
Overview
Testis-expressed protein 19 (TEX19) is a mammalian-specific protein encoded by the TEX19 gene, highly expressed in the testis and placenta. TEX19 is required during spermatogenesis and placental development, where it collaborates with the Piwi-interacting RNA (piRNA) pathway to repress retrotransposable elements and prevent their mobilization. This protein binds directly to piRNAs and interacts with Piwi proteins, safeguarding the genome integrity in germ cells and during early development. Deficiency in TEX19 disrupts normal gametogenesis and may be linked to cancer progression, such as ovarian carcinoma, making it a potential therapeutic target for specific malignancies and reproductive health research[1][5][6].
- Other names
- FLJ35767testis-expressed protein 19testis-expressed sequence 19 proteinTEX19
02
Biological functions
Retrotransposon silencingpiRNA-mediated regulation of transposable elementsSpermatogenesisPlacenta developmentProtein binding (including piRNA and Piwi proteins)
03
Disease associations
Cancer (notably ovarian carcinoma progression)Mixed receptive-expressive language disorder (association)Other (germ cell and placental development disorders)
04
Safety considerations
Potential developmental effects; critical for spermatogenesis and placental function, so inhibition or loss of TEX19 function could impair fertility and embryonic development
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