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Sperm-tail PG-rich repeat-containing protein 2 (STPG2)
- Target
- STPG2
- Molecular classification
- Structural protein, Other (does not fit into major target families like receptor, enzyme, transporter)
01
Overview
Sperm-tail PG-rich repeat-containing protein 2 (STPG2) is a protein encoded by the STPG2 gene located on human chromosome 4[3][5][1]. It is classified as a structural protein, likely involved in the proper formation or function of the sperm tail, although its precise biological role remains unclear beyond its expression and predicted structure[8][3]. No evidence suggests it functions as a receptor, enzyme, transporter, or transcription factor. Genetic variants in STPG2 have been associated with rare syndromes such as Floating-Harbor Syndrome and Sotos Syndrome 2, implicating possible developmental roles, but the protein is not currently considered a direct therapeutic or pharmacological target[3][5][8]. No drugs, biomarkers, or safety concerns are linked to this protein in the therapeutic context[3][8][10].
- Other names
- STPG2C4orf37MGC46496Sperm tail PG-rich repeat-containing protein 2
02
Biological functions
Structural integrity in sperm tail (inferred from protein name and existing gene annotations)Other (no confirmed roles in signal transduction, cell cycle, apoptosis, immune response, or proliferation per available data)
03
Disease associations
Floating-Harbor SyndromeSotos Syndrome 2Other (association is genetic, not as a therapeutic target)
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