This gene is a member of the peptidase C19 family and encodes a protein that is similar to ubiquitin-specific proteases. Though this gene is located on the X chromosome, it escapes X-inactivation. Mutations in this gene have been associated with Turner syndrome. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq, Jul 2008],DFFRX, FAF, FAM, MRX99, MRXS99F,Cell Biology & Developmental Biology,Epigenetics & Nuclear Signaling,Neuroscience,Ubiquitin,USP9X