Basic Information

Symbol
USP9X
RNA class
mRNA
Alias
Ubiquitin Specific Peptidase 9 X-Linked DFFRX FAF-X MRX99 FAF Ubiquitin Specific Protease 9, X Chromosome (Fat Facets-Like Drosophila) Ubiquitin-Specific Protease 9, X Chromosome Ubiquitin Carboxyl-Terminal Hydrolase 9X Deubiquitinating Enzyme FAF-X Ubiquitin Thioesterase FAF-X Fat Facets-Like, X-Linked Fat Facets In Mammals HFAM FAM Ubiquitin Specific Peptidase 9, X-Linked (Fat Facets-Like, Drosophila) Ubiquitin Specific Protease 9, X-Linked (Fat Facets-Like, Drosophila) Probable Ubiquitin Carboxyl-Terminal Hydrolase FAF-X Ubiquitin-Specific Processing Protease FAF-X Ubiquitin-Specific-Processing Protease FAF-X Drosophila Fat Facets Related, X-Linked Fat Facets Protein Related, X-Linked Fat Facets Protein-Related, X-Linked Ubiquitin Thiolesterase FAF-X EC 3.4.19.12 EC 3.1.2.15 MRXS99F XLID99 USP9
Location (GRCh38)
Forensic tag(s)
Drug abuse diagnoses

MANE select

Transcript ID
NM_001039591.3
Sequence length
12543.0 nt
GC content
0.4104

Transcripts

ID Sequence Length GC content
GUUUGCCGGAUCCGCCAUAUUGACGAGGACGGGCAUCCGCGGCUGCGGA… 12591 nt 0.4105
GUUUGCCGGAUCCGCCAUAUUGACGAGGACGGGCAUCCGCGGCUGCGGA… 12543 nt 0.4104
GUUUGCCGGAUCCGCCAUAUUGACGAGGACGGGCAUCCGCGGCUGCGGA… 12655 nt 0.4105
GUUUGCCGGAUCCGCCAUAUUGACGAGGACGGGCAUCCGCGGCUGCGGA… 12607 nt 0.4105
Summary

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]

Forensic Context

A study in mice demonstrated that the USP9X was up-regulated in kidney tissue at 8 and 24 hours after whole-body irradiation, with fold changes of 1.906 and 1.839, respectively, as part of the transcriptional/translational response to ionizing radiation [Zhao et al. DOI:10.1158/1078-0432.CCR-05-2418]. In cynomolgus monkeys, chronic exposure to methamphetamine or heroin resulted in the down-regulation of the USP9X in hippocampal tissue compared to controls, as identified through RNA-Seq analysis and validated by RT-qPCR [Choi et al. DOI:10.30773/pi.2022.0004].