Endogenous retrovirus group K member 5 Gag polyprotein (ERVK-5)

Endogenous retrovirus group K member 5 Gag polyprotein (ERVK-5) is a human gene derived from ancient infection by a retrovirus of the HERV-K (human endogenous retrovirus K) family and encodes a Gag polyprotein, commonly associated with structural roles in viral particle assembly, RNA packaging, and virion formation in retroviruses[2][1][7]. In the human genome, it is a remnant of a viral infection and does not code for a replication-competent retrovirus. Some HERV-K Gag genes—including ERVK-5—have undergone evolutionary conservation, are preferentially expressed in placental tissues, and may be co-opted for host functions, though these are not fully characterized. Notably, increased transcript levels have been observed in certain tumor types such as diffuse large B-cell lymphoma, suggesting a possible role as a biomarker, but not as a therapeutic target[1]. ERVK-5 is not considered a classical drug target (e.g., receptor, enzyme, transporter) and currently lacks known small-molecule or antibody modulators[2][7]. Clarifications: - This is not a conventional therapeutic target; it is primarily a structural retroviral polyprotein gene remnant in humans[2][1][7]. - Alias "ENSG00000293268" is a gene annotation, and "LOC124906262" is a gene locus ID. - No drugs, mechanisms of action, or safety concerns are associated with modulating this target. Errors/Limitations: - This molecule is a genomic retroviral remnant, not a well-established pharmacological or therapeutic target, so "is_incorrect" is marked as true for drug targeting context[1][2][7]. - Most functions are historical or co-opted and not well-understood in human physiology. - Structured drug target data (ligands, mechanisms) does not exist for this protein in current databases.

Other names

ERVK-5ERVK5HERV-K Gag polyproteinendogenous retrovirus group K member 5gagLOC124906262