这个基因座是无内含子的，很明显是在灵长类中由X染色体上的多外显子TAF1基因座的转录物的逆转录转位而产生的。该基因在雄性生殖细胞中表达，并且该产物已被证明与taf1产物具有互换的功能。[由RefSeq提供，2015年8月]
This locus is intronless, and apparently arose in the primate lineage from retrotransposition of the transcript from the multi-exon TAF1 locus on the X chromosome. The gene is expressed in male germ cells, and the product has been shown to function interchangeably with the TAF1 product. [provided by RefSeq, Aug 2015]