Variable charge X-linked protein 2 (VCX2)

Variable charge X-linked protein 2 (VCX2) is a small, highly charged nuclear protein encoded by a gene located in the VCX/Y gene family cluster on the human X chromosome (Xp22); the family has homologous genes on both X and Y chromosomes, typically expressed in male germ cells[1][2][4][8][9]. VCX2 contains tandem repeats of a 30-base pair sequence and exhibits a highly polymorphic copy number across individuals[1][4][8]. Its precise biological function remains uncharacterized, though gene ontology and protein studies speculate a role in spermatogenesis or in affecting sex ratio, based on expression patterns and family homology[3][9]. VCX2 is not recognized as a therapeutic target, lacks association with any approved drugs, and is not implicated as a biomarker or direct causative gene for major diseases, though gene family members have been linked to certain X-linked disorders[4][5][9].

Other names

VCX2VCX-2rVCX2RVCXBVCX-BVariable charge protein on X with two repeatsVariably charged protein X-BVariable charge X-linked protein 2Variably charged, X chromosome BVariably charged, X chromosome 2Variably charged, X chromosome with 2 repeats

Not established (due to the absence of therapeutic targeting and undefined function)[1][9]