in invertebrates, birds, and reptiles. Expression From Unigene's EST cDNA Tissue Abundance display and Protein Atlas, CXorf66 has a moderately high expression levels in testes, in addition to higher expression levels in fetus tissue in comparison to other developmental stages. CXorf66 protein also has a notable low presence in both the control endometrium total RNA and endometriosis total RNA. CXorf66 has been portrayed to have notable presence in the plasma and platelet. Based upon PaxDb data, CXorf66 has been found ranking in the top 5% for one study of human plasma and in the top 25% for another study conducted with human platelet. In addition to this, there has been a noticeable 60–100% CXorf66 protein presence in both non-failing and dilated cardiomyopathy septum tissue. Furthermore, CXorf66 has a ~75% protein presence in peripheral blood mononuclear cells. References External links Genes on human chromosome X Uncharacterized proteins