DDX3X

Also known as DBX, DDX14, DDX3, HLP2, CAP-Rf, MRX102, DEAD-box helicase 3, X-linked, DEAD-box helicase 3 X-linked

ATP-dependent RNA helicase DDX3X is an enzyme that in humans is encoded by the DDX3X gene.

Gene data

DDX3X

Name: DEAD-box helicase 3 X-linked
Type: protein-coding
Chromosome: X
Position: 41,333,348–41,364,472 (+)
Aliases: CAP-Rf, DBX, DDX14, DDX3, HLP2, MRX102, MRXSSB
Ensembl: ENSG00000215301
RefSeq RNA: NM_001193416.3, NM_001193417.3, NM_001356.5, NM_001363819.1, NM_024005.1
RefSeq protein: NP_001180345.1, NP_001180346.1, NP_001347.3, NP_001350748.1, XP_011542194.1

The protein encoded by this gene is a member of the large DEAD-box protein family, that is defined by the presence of the conserved Asp-Glu-Ala-Asp (DEAD) motif, and has ATP-dependent RNA helicase activity. This protein has been reported to display a high level of RNA-independent ATPase activity, and unlike most DEAD-box helicases, the ATPase activity is thought to be stimulated by both RNA and DNA. This protein has multiple conserved domains and is thought to play roles in both the nucleus and cytoplasm. Nuclear roles include transcriptional regulation, mRNP assembly, pre-mRNA splicing, and mRNA export. In the cytoplasm, this protein is thought to be involved in translation, cellular signaling, and viral replication. Misregulation of this gene has been implicated in tumorigenesis. This gene has a paralog located in the nonrecombining region of the Y chromosome. Pseudogenes sharing similarity to both this gene and the DDX3Y paralog are found on chromosome 4 and the X chromosome. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Oct 2014].