DEAD (Asp-Glu-Ala-Asp) box polypeptide 39B

Symbol

DDX39B (may also be known as: None)

Organism

Human

Description

This gene encodes a member of the DEAD box family of RNA-dependent ATPases that mediate ATP hydrolysis during pre-mRNA splicing. The encoded protein is an essential splicing factor required for association of U2 small nuclear ribonucleoprotein with pre-mRNA, and it also plays an important role in mRNA export from the nucleus to the cytoplasm. This gene belongs to a cluster of genes localized in the vicinity of the genes encoding tumor necrosis factor alpha and tumor necrosis factor beta. These genes are all within the human major histocompatibility complex class III region. Mutations in this gene may be associated with rheumatoid arthritis. Alternative splicing results in multiple transcript variants. Related pseudogenes have been identified on both chromosomes 6 and 11. Read-through transcription also occurs between this gene and the upstream ATP6V1G2 (ATPase, H+ transporting, lysosomal 13kDa, V1 subunit G2) gene. [provided by RefSeq, Feb 2011]

Orthologs

SymbolSpecies
hel-1 Caenorhabditis elegans
ddx39b Danio rerio
Ddx39b Mus musculus
Ddx39b Rattus norvegicus

Links to external resources

Changes associated with this gene

GO Terms

GO IDGO TermGO Category
GO:0000245 spliceosome assembly biological_process
GO:0000398 nuclear mRNA splicing, via spliceosome biological_process
GO:0006406 mRNA export from nucleus biological_process
GO:0006810 transport biological_process
GO:0008380 RNA splicing biological_process
GO:0010501 RNA secondary structure unwinding biological_process
GO:0046784 intronless viral mRNA export from host nucleus biological_process
GO:0000346 transcription export complex cellular_component
GO:0005634 nucleus cellular_component
GO:0005681 spliceosomal complex cellular_component
GO:0005687 U4 snRNP cellular_component
GO:0005688 U6 snRNP cellular_component
GO:0016607 nuclear speck cellular_component
GO:0000166 nucleotide binding molecular_function
GO:0003676 nucleic acid binding molecular_function
GO:0003723 RNA binding molecular_function
GO:0004004 ATP-dependent RNA helicase activity molecular_function
GO:0004386 helicase activity molecular_function
GO:0005515 protein binding molecular_function
GO:0005524 ATP binding molecular_function
GO:0008026 ATP-dependent helicase activity molecular_function
GO:0008186 RNA-dependent ATPase activity molecular_function
GO:0016787 hydrolase activity molecular_function
GO:0017070 U6 snRNA binding molecular_function
GO:0030621 U4 snRNA binding molecular_function
GO:0043008 ATP-dependent protein binding molecular_function