Mouse Monoclonal Anti-DDX3 antibody (STJ99237)


Reactivity: Human, Rat, Mouse, Monkey
Applications: WB, ELISA
Conjugation: Unconjugated
Supplier: St John’s Laboratory Ltd.

-$50 as credit for submitting review for primary antibody
Shipping notice:
Product will be delivered in 6 to 8 Business Days

Mouse Monoclonal Anti-DDX3 antibody (STJ99237)

Supplier: St John’s Laboratory Ltd.

Recommended applications: WB, ELISA

Recommended dilution: WB 1:500-2000; ELISA 1:10000-20000

Recommended protocols: check protocols

Image descriptions:

Click or hover above images to see image description for Anti-DDX3 antibody.

Alternative names:

Check alternative names for the antibody


|ATP dependent RNA helicase DDX3X antibody|ATP-dependent RNA helicase DDX3X antibody|CAP Rf antibody|DBX antibody|DDX14 antibody|DDX3X antibody|DDX3X_HUMAN antibody|DEAD (Asp Glu Ala Asp) box polypeptide 3 X linked antibody|DEAD (Asp-Glu-Ala-Asp) box helicase 3, X-linked antibody|DEAD box antibody|DEAD box protein 3 antibody|DEAD box protein 3 X-chromosomal antibody|DEAD box X isoform antibody|DEAD box, X isoform antibody|DEAD/H (Asp Glu Ala Asp/His) box polypeptide 3 antibody|DEAD/H box 3 antibody|DEAD/H box 3, X-linked antibody|Helicase like protein 2 antibody|Helicase-like protein 2 antibody|HLP2 antibody|X isoform antibody|X-chromosomal antibody|Anti-DDX3 antibody (ab61153)
SCBT cat No: sc-81247|sc-365768|sc-98711|sc-390663|


Anti-DDX3 antibody

Catalogue No.



Human, Rat, Mouse, Monkey


Anti-DDX3 antibody detects endogenous levels of DDX3 and does not cross-react with related proteins.


Purified recombinant human DDX3 protein fragments expressed in E.coli.











Molecular weight



Anti-DDX3 antibody was tube-contained in liquid in PBS containing 50% glycerol, 0.5% BSA and 0.02% sodium azide.


1 mg/ml


Anti-DDX3 antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen.


-20 Celsius degree. Avoid repeated freeze/thaw cycles.

Alternative antibody names

ATP dependent RNA helicase DDX3X antibody, ATP-dependent RNA helicase DDX3X antibody, CAP Rf antibody, DBX antibody, DDX14 antibody, DDX3X antibody, DDX3X_HUMAN antibody, DEAD (Asp Glu Ala Asp) box polypeptide 3 X linked antibody, DEAD (Asp-Glu-Ala-Asp) box helicase 3, X-linked antibody, DEAD box antibody, DEAD box protein 3 antibody, DEAD box protein 3 X-chromosomal antibody, DEAD box X isoform antibody, DEAD box, X isoform antibody, DEAD/H (Asp Glu Ala Asp/His) box polypeptide 3 antibody, DEAD/H box 3 antibody, DEAD/H box 3, X-linked antibody, Helicase like protein 2 antibody, Helicase-like protein 2 antibody, HLP2 antibody, X isoform antibody, X-chromosomal antibody

Protein function

Multifunctional ATP-dependent RNA helicase. The ATPase activity can be stimulated by various ribo- and deoxynucleic acids indicative for a relaxed substrate specificity. In vitro can unwind partially double-stranded DNA with a preference for 5'-single-stranded DNA overhangs. Is involved in several steps of gene expression, such as transcription, mRNA maturation, mRNA export and translation. However, the exact mechanisms are not known and some functions may be specific for a subset of mRNAs. Involved in transcriptional regulation. Can enhance transcription from the CDKN1A/WAF1 promoter in a SP1-dependent manner. Found associated with the E-cadherin promoter and can down-regulate transcription from the promoter. Involved in regulation of translation initiation. Proposed to be involved in positive regulation of translation such as of cyclin E1/CCNE1 mRNA and specifically of mRNAs containing complex secondary structures in their 5'UTRs; these functions seem to require RNA helicase activity. Specifically promotes translation of a subset of viral and cellular mRNAs carrying a 5'proximal stem-loop structure in their 5'UTRs and cooperates with the eIF4F complex. Proposed to act prior to 43S ribosomal scanning and to locally destabilize these RNA structures to allow recognition of the mRNA cap or loading onto the 40S subunit. After association with 40S ribosomal subunits seems to be involved in the functional assembly of 80S ribosomes; the function seems to cover translation of mRNAs with structured and non-structured 5'UTRs and is independent of RNA helicase activity. Also proposed to inhibit cap-dependent translation by competetive interaction with EIF4E which can block the EIF4E:EIF4G complex formation. Proposed to be involved in stress response and stress granule assembly; the function is independent of RNA helicase activity and seems to involve association with EIF4E. May be involved in nuclear export of specific mRNAs but not in bulk mRNA export via interactions with XPO1 and NXF1. Also associates with polyadenylated mRNAs independently of NXF1. Associates with spliced mRNAs in an exon junction complex (EJC)-dependent manner and seems not to be directly involved in splicing. May be involved in nuclear mRNA export by association with DDX5 and regulating its nuclear location. Involved in innate immune signaling promoting the production of type I interferon (IFN-alpha and IFN-beta); proposed to act as viral RNA sensor, signaling intermediate and transcriptional coactivator. Involved in TBK1 and IKBKE-dependent IRF3 activation leading to IFNB induction, plays a role of scaffolding adapter that links IKBKE and IRF3 and coordinates their activation. Also found associated with IFNB promoters; the function is independent of IRF3. Can bind to viral RNAs and via association with MAVS/IPS1 and DDX58/RIG-I is thought to induce signaling in early stages of infection. Involved in regulation of apoptosis. May be required for activation of the intrinsic but inhibit activation of the extrinsic apoptotic pathway. Acts as an antiapoptotic protein through association with GSK3A/B and BIRC2 in an apoptosis antagonizing signaling complex; activation of death receptors promotes caspase-dependent cleavage of BIRC2 and DDX3X and relieves the inhibition. May be involved in mitotic chromosome segregation. Appears to be a prime target for viral manipulations. Hepatitis B virus (HBV) polymerase and possibly vaccinia virus (VACV) protein K7 inhibit IFNB induction probably by dissociating DDX3X from TBK1 or IKBKE. Is involved in hepatitis C virus (HCV) replication; the function may involve the association with HCV core protein. HCV core protein inhibits the IPS1-dependent function in viral RNA sensing and may switch the function from a INFB inducing to a HCV replication mode. Involved in HIV-1 replication. Acts as a cofactor for XPO1-mediated nuclear export of incompletely spliced HIV-1 Rev RNAs. .

Involvement in disease

Mental retardation, X-linked 102 (MRX102) [MIM:300958]: A form of mental retardation, a disorder characterized by significantly below average general intellectual functioning associated with impairments in adaptive behavior and manifested during the developmental period. Intellectual deficiency is the only primary symptom of non-syndromic X-linked mental retardation, while syndromic mental retardation presents with associated physical, neurological and/or psychiatric manifestations. MRX102 features include mild to severe intellectual disability, hypotonia, movement disorders, behavior problems, corpus callosum hypoplasia, and epilepsy. Additionally, patients manifest variable non-neurologic features such as joint hyperlaxity, skin pigmentary abnormalities, cleft lip and/or palate, hearing and visual impairment, and precocious puberty. . Note=The disease is caused by mutations affecting the gene represented in this entry.

Protein sequence and domain

Belongs to the DEAD box helicase family. DDX3/DED1 subfamily. ; Contains 1 helicase ATP-binding domain. ; Contains 1 helicase C-terminal domain.

Protein post-translational modifications

Phosphorylated by TBK1; the phosphorylation is required to synergize with TBK1 in IFNB induction. Phosphorylated by IKBKE at Ser-102 after ssRNA viral infection; enhances the induction of INFB promoter by IRF3. The cytoplasmic form is highly phosphorylated in the G1/S phase and much lower phosphorylated in G2/M. .

Protein cellular localization

Nucleus speckle. Cytoplasm. Mitochondrion outer membrane. Note=Located predominantly in nuclear speckles and, at low levels, throughout the cytoplasm. Located to the outer side of nuclear pore complexes (NPC). Shuttles between the nucleus and the cytoplasm in a XPO1 and may be also in a NFX1-dependent manner. Associated with polyadenylated mRNAs in the cytoplasm and the nucleus. Predominantly located in nucleus during G(0) phase and in the cytoplasm during G1/S phase.

Research area

<a href="">All research areas</a>><a href="">Transcription Regulators</a>><a href="">DDX</a><br><a href=""&gt; (View all antibody categories related to Transcription Regulators)</a>


AntibodyPlus can customize Anti-DDX3 antibody according to your requirement, including bulk product size,etc. Please contact <a href=""></a>. AntibodyPlus provide antibody trial sample for your own antibody validation and collects antibody reviews.


St John’s Laboratory Ltd.

Product type

Primary antibody


There are no reviews yet.

Only logged in customers who have purchased this product may leave a review

There are no reviews for this product yet.
By submitting a review, get following benefits:

1. Receive $50 ABcoins as credit for each review.
2. First trial sample order will be fully refunded as credit.
3. Have a chance to win a $50 amazon gift card!

view database submit reviews

There is no extra validation for this product yet.
Check other extra validated antibodies below: