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Rabbit Recombinant Monoclonal DDX21 antibody - conjugated to Alexa Fluor® 555.

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Key facts

Isotype

IgG

Host species

Rabbit

Conjugation

Alexa Fluor® 555

Excitation/Emission

Ex: 555nm, Em: 565nm

Storage buffer

pH: 7.4
Preservative: 0.02% Sodium azide
Constituents: 68% PBS, 30% Glycerol (glycerin, glycerine), 1% BSA

Form

Liquid

Clonality

Monoclonal

Immunogen

  • The exact immunogen used to generate this antibody is proprietary information.

Reactivity data

Application

Target Binding Affinity

Reactivity

Expected

Dilution info

-

Notes

-

Application

Antibody Labelling

Reactivity

Expected

Dilution info

-

Notes

-

Associated Products

Select an associated product type

1 product for Alternative Version

Target data

Function

RNA helicase that acts as a sensor of the transcriptional status of both RNA polymerase (Pol) I and II: promotes ribosomal RNA (rRNA) processing and transcription from polymerase II (Pol II) (PubMed:25470060, PubMed:28790157). Binds various RNAs, such as rRNAs, snoRNAs, 7SK and, at lower extent, mRNAs (PubMed:25470060). In the nucleolus, localizes to rDNA locus, where it directly binds rRNAs and snoRNAs, and promotes rRNA transcription, processing and modification. Required for rRNA 2'-O-methylation, possibly by promoting the recruitment of late-acting snoRNAs SNORD56 and SNORD58 with pre-ribosomal complexes (PubMed:25470060, PubMed:25477391). In the nucleoplasm, binds 7SK RNA and is recruited to the promoters of Pol II-transcribed genes: acts by facilitating the release of P-TEFb from inhibitory 7SK snRNP in a manner that is dependent on its helicase activity, thereby promoting transcription of its target genes (PubMed:25470060). Functions as a cofactor for JUN-activated transcription: required for phosphorylation of JUN at 'Ser-77' (PubMed:11823437, PubMed:25260534). Can unwind double-stranded RNA (helicase) and can fold or introduce a secondary structure to a single-stranded RNA (foldase) (PubMed:9461305). Together with SIRT7, required to prevent R-loop-associated DNA damage and transcription-associated genomic instability: deacetylation by SIRT7 activates the helicase activity, thereby overcoming R-loop-mediated stalling of RNA polymerases (PubMed:28790157). Involved in rRNA processing (PubMed:14559904, PubMed:18180292). May bind to specific miRNA hairpins (PubMed:28431233). 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 pro-inflammatory cytokines via the adapter molecule TICAM1 (By similarity).

Alternative names

Recommended products

Rabbit Recombinant Monoclonal DDX21 antibody - conjugated to Alexa Fluor® 555.

Key facts

Isotype

IgG

Conjugation

Alexa Fluor® 555

Excitation/Emission

Ex: 555nm, Em: 565nm

Form

Liquid

Clonality

Monoclonal

Immunogen
  • The exact immunogen used to generate this antibody is proprietary information.
Clone number

EPR14495

Purification technique

Affinity purification Protein A

Concentration
Loading...

Storage

Shipped at conditions

Blue Ice

Appropriate short-term storage duration

1-2 weeks

Appropriate short-term storage conditions

+4°C

Appropriate long-term storage conditions

-20°C

Aliquoting information

Upon delivery aliquot

Storage information

Avoid freeze / thaw cycle, Store in the dark

Notes

This product is a recombinant monoclonal antibody, which offers several advantages including:

  • - High batch-to-batch consistency and reproducibility
  • - Improved sensitivity and specificity
  • - Long-term security of supply
  • - Animal-free batch production

For more information, read more on recombinant antibodies.

Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.

This conjugated primary antibody is released using a quantitative quality control method that evaluates binding affinity post-conjugation and efficiency of antibody labeling.
For suitable applications and species reactivity, please refer to the unconjugated version of this clone. This conjugated antibody is eligible for the Abcam trial program.

Supplementary info

This supplementary information is collated from multiple sources and compiled automatically.

Activity summary

DDX21 also known as RH-II/Gu is a member of the DEAD-box RNA helicase family. It weighs approximately 87 kDa and is expressed prominently in the nucleus. DEAD-box proteins are known for unwinding RNA secondary structures essential for various cellular processes. DDX21 plays an important role in ribosome biogenesis and transcriptional regulation. Its nuclear localization is critical for its function and it is detected in various cell types indicating a broad role in cellular mechanisms.

Biological function summary

DDX21 is involved in multiple fundamental cellular processes beyond just transcription and ribosomal RNA processing. It participates in the synthesis of rRNA and plays an active role in the regulation of ribosome assembly. Additionally DDX21 interacts with other members of the DEAD-box family forming a complex which is necessary for efficient RNA processing and modification. Its activity has influence over protein synthesis by regulating the availability of ribosomal components.

Pathways

DDX21 fits into the larger RNA processing and ribosome biogenesis pathways. It interacts with proteins like nucleolin and fibrillarin contributing to the assembly and maturation of ribosomes. In the ribosome biogenesis pathway DDX21 controls the processing of pre-rRNA together with other ribosomal proteins ensuring proper formation of functional ribosomes. DDX21 also participates in the stress response pathways indicating its integral role in adapting to cellular stress conditions.

Associated diseases and disorders

DDX21's function is implicated in cancer and viral infections. High levels of DDX21 have been associated with tumorigenesis connecting it with oncogenic pathways. It interacts with proteins like p53 in the regulation of cellular growth and apoptosis. Additionally DDX21 plays a part in the replication of certain viruses suggesting a role in the viral life cycle and potential as a therapeutic target. Understanding DDX21’s involvement in these conditions may offer insights into novel diagnostic and treatment strategies.

Product promise

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