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DDX1

DEAD box proteins, characterized by the conserved motif Asp-Glu-Ala-Asp (DEAD), are putative RNA helicases. They are implicated in a number of cellular processes involving alteration of RNA secondary structure such as translation initiation, nuclear and mitochondrial splicing, and ribosome and spliceosome assembly. Based on their distribution patterns, some members of this family are believed to be involved in embryogenesis, spermatogenesis, and cellular growth and division. This gene encodes a DEAD box protein of unknown function. It shows high transcription levels in 2 retinoblastoma cell lines and in tissues of neuroectodermal origin. [provided by RefSeq]
Full Name
DEAD (Asp-Glu-Ala-Asp) box polypeptide 1
Function
Acts as an ATP-dependent RNA helicase, able to unwind both RNA-RNA and RNA-DNA duplexes. Possesses 5' single-stranded RNA overhang nuclease activity. Possesses ATPase activity on various RNA, but not DNA polynucleotides. May play a role in RNA clearance at DNA double-strand breaks (DSBs), thereby facilitating the template-guided repair of transcriptionally active regions of the genome. Together with RELA, acts as a coactivator to enhance NF-kappa-B-mediated transcriptional activation. Acts as a positive transcriptional regulator of cyclin CCND2 expression. Binds to the cyclin CCND2 promoter region. Associates with chromatin at the NF-kappa-B promoter region via association with RELA. Binds to poly(A) RNA. May be involved in 3'-end cleavage and polyadenylation of pre-mRNAs. Component of the tRNA-splicing ligase complex required to facilitate the enzymatic turnover of catalytic subunit RTCB: together with archease (ZBTB8OS), acts by facilitating the guanylylation of RTCB, a key intermediate step in tRNA ligation (PubMed:24870230).

Component of a multi-helicase-TICAM1 complex that acts as a cytoplasmic sensor of viral double-stranded RNA (dsRNA) and plays a role in the activation of a cascade of antiviral responses including the induction of proinflammatory cytokines via the adapter molecule TICAM1. Specifically binds (via helicase ATP-binding domain) on both short and long poly(I:C) dsRNA (By similarity).
(Microbial infection) Required for HIV-1 Rev function as well as for HIV-1 and coronavirus IBV replication. Binds to the RRE sequence of HIV-1 mRNAs.
(Microbial infection) Required for Coronavirus IBV replication.
Biological Process
Defense response to virus Source: UniProtKB-KW
DNA duplex unwinding Source: UniProtKB
Double-strand break repair Source: UniProtKB
Innate immune response Source: UniProtKB-KW
Multicellular organism development Source: UniProtKB
Nucleic acid phosphodiester bond hydrolysis Source: UniProtKB
Positive regulation of I-kappaB kinase/NF-kappaB signaling Source: UniProtKB
Protein localization to cytoplasmic stress granule Source: AgBase
Regulation of translational initiation Source: UniProtKB
Spliceosomal complex assembly Source: UniProtKB
tRNA splicing, via endonucleolytic cleavage and ligation Source: UniProtKB
Viral process Source: UniProtKB-KW
Cellular Location
Cytoplasm; Cytosol; Nucleus; Mitochondrion; Cytoplasmic granule. Localized with MBNL1, TIAL1 and YBX1 in stress granules upon stress. Localized with CSTF2 in cleavage bodies. Forms large aggregates called DDX1 bodies. Relocalized into multiple foci (IR-induced foci or IRIF) after IR treatment, a process that depends on the presence of chromosomal DNA and/or RNA-DNA duplexes. Relocalized at sites of DNA double-strand breaks (DSBs) in an ATM-dependent manner after IR treatment. Colocalized with RELA in the nucleus upon TNF-alpha induction. Enters into the nucleus in case of active transcription while it accumulates in cytosol when transcription level is low (PubMed:24608264). Colocalizes in the cytosol with DDX21, DHX36 and TICAM1. Colocalizes in the mitochondria with TICAM1 and poly(I:C) RNA ligand. The multi-helicase-TICAM1 complex may translocate to the mitochondria upon poly(I:C) stimulation (By similarity).
Cytoplasm. (Microbial infection) Relocalized to the cytoplasm with a perinuclear staining pattern in avian infectious bronchitis virus (IBV)-infected cells (PubMed:20573827). Required for proper localization of HIV-1 Rev (PubMed:15567440).
PTM
Phosphorylated by ATM kinase; phosphorylation is increased in response to ionizing radiation (IR).

Anti-DDX1 antibodies

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Submit A Review Fig.3 Signaling pathways in cancers. (Creative Biolabs Authorized) Fig.4 Protocols troubleshootings & guides. (Creative Biolabs Authorized) Submit A Review Fig.3 Signaling pathways in cancers. (Creative Biolabs Authorized) Fig.4 Protocols troubleshootings & guides. (Creative Biolabs Authorized)
Target: DDX1
Host: Mouse
Antibody Isotype: IgG2b
Specificity: Human
Clone: 4F6
Application*: E, WB
Target: DDX1
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human, Mouse
Clone: 3E5E2
Application*: E, P, IF, IC, F, WB
Target: DDX1
Host: Mouse
Antibody Isotype: IgG2b
Specificity: Human
Clone: 10B2679
Application*: E, WB
Target: DDX1
Host: Mouse
Antibody Isotype: IgG1, κ
Specificity: Human, Mouse
Clone: 9F12B04
Application*: WB, IF
Target: DDX1
Host: Mouse
Antibody Isotype: IgG1
Specificity: Human
Clone: 22/DDX1
Application*: WB, IF
More Infomation
For Research Use Only. Not For Clinical Use.
(P): Predicted
* Abbreviations
IFImmunofluorescence
IHImmunohistochemistry
IPImmunoprecipitation
WBWestern Blot
EELISA
MMicroarray
CIChromatin Immunoprecipitation
FFlow Cytometry
FNFunction Assay
IDImmunodiffusion
RRadioimmunoassay
TCTissue Culture
GSGel Supershift
NNeutralization
BBlocking
AActivation
IInhibition
DDepletion
ESELISpot
DBDot Blot
MCMass Cytometry/CyTOF
CTCytotoxicity
SStimulation
AGAgonist
APApoptosis
IMImmunomicroscopy
BABioassay
CSCostimulation
EMElectron Microscopy
IEImmunoelectrophoresis
PAPeptide Array
ICImmunocytochemistry
PEPeptide ELISA
MDMeDIP
SHIn situ hybridization
IAEnzyme Immunoassay
SEsandwich ELISA
PLProximity Ligation Assay
ECELISA(Cap)
EDELISA(Det)
BIBioimaging
IOImmunoassay
LFLateral Flow Immunoassay
LALuminex Assay
CImmunohistochemistry-Frozen Sections
PImmunohistologyp-Paraffin Sections
ISIntracellular Staining for Flow Cytometry
MSElectrophoretic Mobility Shift Assay
RIRNA Binding Protein Immunoprecipitation (RIP)
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